Key words: fine-crystalline corundum, sub- and supercritical water, solid phase mobility, crystal formation, microcrystal size distribution, lognormal function, coalescence, surface spreading, recrystallization
A mechanism of the fine-crystalline corundum synthesis from aluminum hydroxide in
the conditions of induced nucleation in the supercritical water fluid at 400°C, an
initial pressure of 26.4 MPa, and subsequent exposure in a synthesis medium is considered.
The size distribution of the crystals was based on the analysis of electron microscopic
images. The use of the lognormal function to describe the crystal size distribution of
the synthesized corundum particles is substantiated. The possibility of using the
lognormal particle size distribution function and the time dependence of its parameters
to reveal the formation routes of the product crystals is analyzed. It is found that the
dimensional spectrum of microcrystals has four components, the appearance of which
is associated with different routes of the product formation. The number of distribution
components remains unchanged during the prolonged exposure, but their average
characteristics have different time dependences. The redistribution of the mass during
recrystallization, which leads, on the whole, to a decrease in the average crystal size, is
explained by differences in the mobility of the crystal structure of different components.
It is concluded that the states of corundum in the newly formed crystals and in the
buildup layer on the particles of the inducing additive are different.
doi:10.34984/SCFTP.2018.13.1.001
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7.0.100-2018
Analysis of a Fine-Crystalline Corundum Recrystallization in Supercritical Water Medium Using the Lognormal Particle Size Distribution Function / – Текст : непосредственный // Сверхкритические Флюиды: Теория и Практика.. – 2018. – Т. 13. – № 1. – С. 4-15. - DOI: 10.34984/SCFTP.2018.13.1.001
TRANSLIT
Analiz rekristallizacii melkokristallicheskogo korunda v sverhkriticheskoj vodnoj srede s pomoshch'yu lognormal'noj funkcii raspredeleniya chastic po razmeram / – Sverhkriticheskie Flyuidy: Teoriya i Praktika.. – 2018. – Т. 13. – № 1. – S. 4-15. - DOI: 10.34984/SCFTP.2018.13.1.001
En
Analysis of a Fine-Crystalline Corundum Recrystallization in Supercritical Water Medium Using the Lognormal Particle Size Distribution Function. Sverhkriticheskie Flyuidy: Teoriya i Praktika, 1, 4-15 (2018). https://doi.org/10.34984/SCFTP.2018.13.1.001
Key words: chamomile flowers, extraction, subcritical water, 7-methoxycoumarin, luteolin, apigenin, derivatization
UV-spectroscopy, gas chromatography / mass spectrometry, high efficiency liquid
chromatography and gravimetry methods were employed to study the extracts of
biologically active substances (BAS) from the flowers of chamomile growing in the
Samara region. The extracts were obtained using the subcritical water and aqueous
solutions of ethanol at 150 and 200 °C and 5 MPa. The BAS in the extracts were identified
using a reactive gas chromatography.
doi:10.34984/SCFTP.2018.13.1.002
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ГОСТ
7.0.100-2018
Evaluation of Efficiency of Biologically Active Compounds Subcritical Extraction from the Chamomile Flowers (Chamomilla recutita R.) Growing in the Samara Region / – Текст : непосредственный // Сверхкритические Флюиды: Теория и Практика.. – 2018. – Т. 13. – № 1. – С. 16-33. - DOI: 10.34984/SCFTP.2018.13.1.002
TRANSLIT
Ocenka effektivnosti izvlecheniya biologicheski aktivnyh soedinenij ekstragentami v subkriticheskom sostoyanii iz cvetkov romashki aptechnoj (Chamomilla recutita R.), proizrastayushchej v Samarskoj oblasti / – Sverhkriticheskie Flyuidy: Teoriya i Praktika.. – 2018. – Т. 13. – № 1. – S. 16-33. - DOI: 10.34984/SCFTP.2018.13.1.002
En
Evaluation of Efficiency of Biologically Active Compounds Subcritical Extraction from the Chamomile Flowers (Chamomilla recutita R.) Growing in the Samara Region. Sverhkriticheskie Flyuidy: Teoriya i Praktika, 1, 16-33 (2018). https://doi.org/10.34984/SCFTP.2018.13.1.002
Key words: 1,4-dioxane, thermal stability
Thermal stability of 1,4-dioxane below and above its critical temperature (at 300—
500 °C) and at different fluid densities is studied. In the temperature range of 300—
350 °C dioxane is thermally stable during 80—100 minutes; at higher temperatures
during the same time the uncontrolled pressure growth starts due to the thermal
cracking of dioxane. The analysis of liquid and gas phases after the dioxane thermal
treatment shows the formation of a wide range of products.
doi:10.34984/SCFTP.2018.13.1.003
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7.0.100-2018
Thermal Stability of 1,4-Dioxane at Sub- and Supercritical Temperatures / – Текст : непосредственный // Сверхкритические Флюиды: Теория и Практика.. – 2018. – Т. 13. – № 1. – С. 34-39. - DOI: 10.34984/SCFTP.2018.13.1.003
TRANSLIT
Termicheskaya ustojchivost' 1,4-dioksana pri do- i sverhkriticheskih temperaturah / – Sverhkriticheskie Flyuidy: Teoriya i Praktika.. – 2018. – Т. 13. – № 1. – S. 34-39. - DOI: 10.34984/SCFTP.2018.13.1.003
En
Thermal Stability of 1,4-Dioxane at Sub- and Supercritical Temperatures. Sverhkriticheskie Flyuidy: Teoriya i Praktika, 1, 34-39 (2018). https://doi.org/10.34984/SCFTP.2018.13.1.003
Key words: supercritical carbon dioxide, diphenylamine, solubility, dynamic mode, SC-CO2-extraction
The results of experimental studies of solubility of diphenylamine in supercritical
carbon dioxide (SC-CO2) are presented. Research was carried out at temperature
323.15 K in the pressure range from 10 to 35 MPa on the experimental plant implementing
a dynamic research method, produced by «Reaction Engineering, Ink.» (South Korea).
Experimental solubility data are described using the Peng — Robinson equation of
state. The results of SC-CO2-extraction process of ether-ethanol mixture from the
samples of «Sunar 308WIN» brand gunpowder are presented, and process parameters
corresponding to the maximum preservation of diphenylamine in the powder are
defined, the efficiency of this process is shown.
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ГОСТ
7.0.100-2018
Extraction of Ether-Ethonol Mixture from Powders by the Example of Gunpowder Brand «Sunar 308WIN» Using Supercritical CO2 / – Текст : непосредственный // Сверхкритические Флюиды: Теория и Практика.. – 2018. – Т. 13. – № 1. – С. 40-50. - DOI: 10.34984/SCFTP.2018.13.1.004
TRANSLIT
Ekstrakciya spirto-efirnoj smesi iz ohotnich'ih porohov s ispol'zovaniem sverhkriticheskogo SO2 na primere poroha «Sunar 308WIN» / – Sverhkriticheskie Flyuidy: Teoriya i Praktika.. – 2018. – Т. 13. – № 1. – S. 40-50. - DOI: 10.34984/SCFTP.2018.13.1.004
En
Extraction of Ether-Ethonol Mixture from Powders by the Example of Gunpowder Brand «Sunar 308WIN» Using Supercritical CO2. Sverhkriticheskie Flyuidy: Teoriya i Praktika, 1, 40-50 (2018). https://doi.org/10.34984/SCFTP.2018.13.1.004
Key words: ethylene-vinyl acetate copolymer, supercritical CO2, phase equilibrium, solubility, dispersing, SEDS method, crystallization
The results of an experimental study of the characteristics of phase equilibria for the
systems consisting of toluene, supercritical carbon dioxide and ethylene-vinyl acetate
copolymers (EVAC) are presented. The joint dispersing of different EVAC's and
polyethylene using the SEDS method is performed at 8.0—25 MPa and 313, 323 and 333
K. A comparison of melting and crystallization processes in the mixtures of copolymers
shows that those obtained by the SEDS method have higher degree of crystallinity as
compared with the mixtures of the same compositions, but obtained by melt mixing.
doi:10.34984/SCFTP.2018.13.1.005
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7.0.100-2018
Crystallization of Polymer Mixtures in the Course of their Dispersing Using the SEDS Method / – Текст : непосредственный // Сверхкритические Флюиды: Теория и Практика.. – 2018. – Т. 13. – № 1. – С. 51-63. - DOI: 10.34984/SCFTP.2018.13.1.005
TRANSLIT
Kristallizaciya polimernyh smesej v processe dispergirovaniya po metodu SEDS / – Sverhkriticheskie Flyuidy: Teoriya i Praktika.. – 2018. – Т. 13. – № 1. – S. 51-63. - DOI: 10.34984/SCFTP.2018.13.1.005
En
Crystallization of Polymer Mixtures in the Course of their Dispersing Using the SEDS Method. Sverhkriticheskie Flyuidy: Teoriya i Praktika, 1, 51-63 (2018). https://doi.org/10.34984/SCFTP.2018.13.1.005
Key words: supercritical antisolvent preci pitation, salbutamol, micronization, morphology, supersaturation degree
The applicability of the method of supercritical antisolvent preci pitation (SAS) to
obtain microparticles of an anti-asthmatic salbutamol sulfate preparation suitable for
the production of an inhalable dosage form is studied. Depending on the concentration
of salbutamol in the starting solution, its flow rate and the pressure, spherical or needle
shaped particles of 0.7 to 8.5 microns can be obtained. The dependence of the average
particle size on the concentration of salbutamol in the initial solution is nonmonotonic.
The conditions for the production of particles suitable in shape and size for the
inhalation dosage form are determined.
doi:10.34984/SCFTP.2018.13.1.006
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ГОСТ
7.0.100-2018
Micronization of Salbutamol Sulfate by Supercritical Antisolvent Preci pitation: Effect of Process Parameters on Size and Morphology of Obtained Particles / – Текст : непосредственный // Сверхкритические Флюиды: Теория и Практика.. – 2018. – Т. 13. – № 1. – С. 64-76. - DOI: 10.34984/SCFTP.2018.13.1.006
TRANSLIT
Mikronizaciya sul'fata sal'butamola metodom sverhkriticheskogo antisol'ventnogo osazhdeniya: vliyanie parametrov processa na razmer i morfologiyu chastic / – Sverhkriticheskie Flyuidy: Teoriya i Praktika.. – 2018. – Т. 13. – № 1. – S. 64-76. - DOI: 10.34984/SCFTP.2018.13.1.006
En
Micronization of Salbutamol Sulfate by Supercritical Antisolvent Preci pitation: Effect of Process Parameters on Size and Morphology of Obtained Particles. Sverhkriticheskie Flyuidy: Teoriya i Praktika, 1, 64-76 (2018). https://doi.org/10.34984/SCFTP.2018.13.1.006
Key words: supercritical carbon dioxide, microencapsulation, pulsed supersonic jet, TiO2 nanoparticles
The process of microencapsulation of titanium dioxide nanoparticles in polyethylene
glycol PEG 8000 at pulse expanding of the jets of polymer solution in supercritical
carbon dioxide in vacuum and in a background gas (helium) is experimentally studied.
In both cases, at given initial temperature and cosolvent (ethanol) concentration the
distance from the nozzle exit to the point of «coil—globule» transition on the jet axis
is determined using the electron microscopy data. The dependence of the transition
point position on the initial temperature and the concentration of ethanol in the
reactor is obtained.
doi:10.34984/SCFTP.2018.13.1.007
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ГОСТ
7.0.100-2018
«Coil—Globule» Transition During the Microencapsulation of TiO2 Nanoparticles in the Jet of Supercritical CO2 / – Текст : непосредственный // Сверхкритические Флюиды: Теория и Практика.. – 2018. – Т. 13. – № 1. – С. 77-85. - DOI: 10.34984/SCFTP.2018.13.1.007
TRANSLIT
Perekhod «klubok—globula» pri mikrokapsulirovanii nanochastic TiO2 v strue sverhkriticheskogo CO2 / – Sverhkriticheskie Flyuidy: Teoriya i Praktika.. – 2018. – Т. 13. – № 1. – S. 77-85. - DOI: 10.34984/SCFTP.2018.13.1.007
En
«Coil—Globule» Transition During the Microencapsulation of TiO2 Nanoparticles in the Jet of Supercritical CO2. Sverhkriticheskie Flyuidy: Teoriya i Praktika, 1, 77-85 (2018). https://doi.org/10.34984/SCFTP.2018.13.1.007
Key words: impregnation, supercritical carbon dioxide, EPR, spin probe method, matrixes for tissue engineering.
The spin probe technique as a version of the electron paramagnetic resonance (EPR)
spectroscopy was used to reveal the regularities of the formation of porous matrixes
based on D,L-polylactide in a supercritical CO2 medium with the simultaneous
impregnation by paramagnetic biologically active test molecule 4-Hydroxy-2,2,6,6-tetramethylpiperidine
1-oxyl (TEMPOL). The dependences of the average and local dopant
concentration on impregnation conditions were estimated. It was concluded that EPR
spectroscopy is a promising method for studying porous polymeric materials formed
in supercritical conditions. Impregnation of the polymer with a paramagnetic compound
allows one to estimate the uniformity of the dopant distribution in a sample on both
macroscopic and microscopic levels, and also to judge the structure of the polymer
matrix. The data obtained by EPR and optical spectroscopy showed that the resulting
matrixes meet the important requirements for porous materials for tissue engineering.
doi:10.34984/SCFTP.2018.13.1.008
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ГОСТ
7.0.100-2018
EPR Diagnostics of Porous Matrixes on the Basis of D,L-Polylactide, Generated in the Medium of Supercritical CO2 / – Текст : непосредственный // Сверхкритические Флюиды: Теория и Практика.. – 2018. – Т. 13. – № 1. – С. 86-93. - DOI: 10.34984/SCFTP.2018.13.1.008
TRANSLIT
EPR diagnostika poristyh matriksov na osnove D,L-polilaktida, sformirovannyh v srede sverhkriticheskogo SO2 / – Sverhkriticheskie Flyuidy: Teoriya i Praktika.. – 2018. – Т. 13. – № 1. – S. 86-93. - DOI: 10.34984/SCFTP.2018.13.1.008
En
EPR Diagnostics of Porous Matrixes on the Basis of D,L-Polylactide, Generated in the Medium of Supercritical CO2. Sverhkriticheskie Flyuidy: Teoriya i Praktika, 1, 86-93 (2018). https://doi.org/10.34984/SCFTP.2018.13.1.008
Key words: synthesis of barium titanate, subcritical water fluid, barium titanate nanocrystals
The structure and morphology of fine-crystalline barium titanate synthesized in a
subcritical water fluid at 230 °C and 2.9 MPa were studied. Barium oxide, barium hydroxide
octahydrate Ba(OH)2 ⋅ 8H2O and two modifications of titanium dioxide (rutile and
anatase) were used as starting reactants. Relationships between the composition and
properties of the reactants and the characteristics of the product (barium titanate)
were revealed. They indicate that the product structure in the subcritical water is
formed via a solid-phase mechanism.
doi:10.34984/SCFTP.2018.13.2.001
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ГОСТ
7.0.100-2018
Effect of Reagents on the Properties of Barium Titanate Synthesized in Subcritical Water / – Текст : непосредственный // Сверхкритические Флюиды: Теория и Практика.. – 2018. – Т. 13. – № 2. – С. 3-14. - DOI: 10.34984/SCFTP.2018.13.2.001
TRANSLIT
Vliyanie prirody reagentov na svojstva titanata bariya, sintezirovannogo v srede dokriticheskogo vodnogo flyuida / – Sverhkriticheskie Flyuidy: Teoriya i Praktika.. – 2018. – Т. 13. – № 2. – S. 3-14. - DOI: 10.34984/SCFTP.2018.13.2.001
En
Effect of Reagents on the Properties of Barium Titanate Synthesized in Subcritical Water. Sverhkriticheskie Flyuidy: Teoriya i Praktika, 2, 3-14 (2018). https://doi.org/10.34984/SCFTP.2018.13.2.001
Key words: subcritical water, antioxidant, quercetin, rutin, hydrolysis, buds, sophora japanese, Sophora japonica L.
The possibility of obtaining quercetin (a natural antioxidant) from buds of Sophora
japonica L. using subcritical water, which acts as a solvent and a reagent simultaneously
was studied. The suggested approach avoids the use of expensive and toxic organic
solvents, does not require separate extraction and hydrolysis steps and simplifies the
purification of the product. A 13-fold reduction in treatment time was achieved compared
with the traditional procedure to obtain high yield of quercetin. The loss of the target
product in the production of the dried extract was reduced.
doi:10.34984/SCFTP.2018.13.2.002
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ГОСТ
7.0.100-2018
Development of One-Step («One-Pot») Technique for Production of Quercetin Antioxidant from Sophora Japonica L. Buds in Subcritical Water Medium / – Текст : непосредственный // Сверхкритические Флюиды: Теория и Практика.. – 2018. – Т. 13. – № 2. – С. 15-23. - DOI: 10.34984/SCFTP.2018.13.2.002
TRANSLIT
Razrabotka odnostadijnoj metodiki polucheniya antioksidanta kvercetina iz butonov sofory yaponskoj (Sophora japonica L.) v srede subkriticheskoj vody / – Sverhkriticheskie Flyuidy: Teoriya i Praktika.. – 2018. – Т. 13. – № 2. – S. 15-23. - DOI: 10.34984/SCFTP.2018.13.2.002
En
Development of One-Step («One-Pot») Technique for Production of Quercetin Antioxidant from Sophora Japonica L. Buds in Subcritical Water Medium. Sverhkriticheskie Flyuidy: Teoriya i Praktika, 2, 15-23 (2018). https://doi.org/10.34984/SCFTP.2018.13.2.002
Key words: hydroxybenzoic acids, hydroxycinnamic acids, supercritical carbon dioxide, cosolvent, molecular dynamics, hydrogen bond
Selective solvation of hydroxybenzoic (ortho-, meta- and para-hydroxybenzoic,
protocatechuic, gallic, syringic) acids and hydroxycinnamic (para-coumaric, caffeic)
acids by polar cosolvent (methanol) in supercritical carbon dioxide at temperature
318 K, solvent density 0.7 g/cm3 and methanol concentration 3.5 mol.% is studied
using molecular dynamics method. The subject of the study is the formation of cosolvent
clusters around solute, the solute — cosolvent hydrogen bonding, the structural features
of hydrogen-bonded complexes associated with the molecular structure of solute (the
number and location of hydroxyl groups, the substitution of hydroxyl hydrogens by
methyl groups, and the presence of ethylene group between carboxyl group and
benzene ring).
doi:10.34984/SCFTP.2018.13.2.003
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ГОСТ
7.0.100-2018
Solvation of Hydroxybenzoic and Hydroxycinnamic Acids in Supercritical Carbon Dioxide. Peculiarities of Hydrogen Bonding with a Polar Cosolvent / – Текст : непосредственный // Сверхкритические Флюиды: Теория и Практика.. – 2018. – Т. 13. – № 2. – С. 24-39. - DOI: 10.34984/SCFTP.2018.13.2.003
TRANSLIT
Sol'vataciya gidroksibenzojnyh i gidroksikorichnyh kislot v sverhkriticheskom diokside ugleroda. Osobennosti obrazovaniya vodorodnyh svyazej s polyarnym sorastvoritelem / – Sverhkriticheskie Flyuidy: Teoriya i Praktika.. – 2018. – Т. 13. – № 2. – S. 24-39. - DOI: 10.34984/SCFTP.2018.13.2.003
En
Solvation of Hydroxybenzoic and Hydroxycinnamic Acids in Supercritical Carbon Dioxide. Peculiarities of Hydrogen Bonding with a Polar Cosolvent. Sverhkriticheskie Flyuidy: Teoriya i Praktika, 2, 24-39 (2018). https://doi.org/10.34984/SCFTP.2018.13.2.003
Key words: palladium catalyst, impregnation, supercritical carbon dioxide, hydrogenation
The synthesis of palladium and palladium-silver catalysts using supercritical fluid
CO2-impregnation process (static mode) was investigated. It is shown that the maximum
amount of metal is impregnated to the carrier in the temperature range 318—323 K
and pressure range 19.0—23.0 MPa. The activity of palladium catalysts prepared according
to the proposed method is comparable with the activity of industrial samples currently
produced.
doi:10.34984/SCFTP.2018.13.2.004
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7.0.100-2018
Synthesis of Bimetallic Catalyst in a Static CO2-Impregnation Process / – Текст : непосредственный // Сверхкритические Флюиды: Теория и Практика.. – 2018. – Т. 13. – № 2. – С. 40-49. - DOI: 10.34984/SCFTP.2018.13.2.004
TRANSLIT
Sintez bimetallicheskogo katalizatora s ispol'zovaniem staticheskogo SO2-impregnacionnogo processa / – Sverhkriticheskie Flyuidy: Teoriya i Praktika.. – 2018. – Т. 13. – № 2. – S. 40-49. - DOI: 10.34984/SCFTP.2018.13.2.004
En
Synthesis of Bimetallic Catalyst in a Static CO2-Impregnation Process. Sverhkriticheskie Flyuidy: Teoriya i Praktika, 2, 40-49 (2018). https://doi.org/10.34984/SCFTP.2018.13.2.004
Key words: polymers, supercritical fluids, subcritical freons, carbon dioxide.
Process of saturation of ultra high density polyethylene with sub- and supercritical
freons and supercritical carbon dioxide was investigated for the first time. It was
shown that subcritical freon R22 can be absorbed in much larger amounts by these
polymers than subcritical freon R410а, as well as supercritical R23 and carbon dioxide,
which makes it promising for use in the processes of impregnation and sterilization
of polymers.
doi:10.34984/SCFTP.2018.13.2.005
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7.0.100-2018
Treatment of Ultra High Density Polyethylene and Polyethylene Terephthalate in Sub- and Supercritical Freons Media / – Текст : непосредственный // Сверхкритические Флюиды: Теория и Практика.. – 2018. – Т. 13. – № 2. – С. 50-55. - DOI: 10.34984/SCFTP.2018.13.2.005
TRANSLIT
Obrabotka polietilena vysokoj plotnosti i polietilentereftalata v sub- i sverhkriticheskih freonah / – Sverhkriticheskie Flyuidy: Teoriya i Praktika.. – 2018. – Т. 13. – № 2. – S. 50-55. - DOI: 10.34984/SCFTP.2018.13.2.005
En
Treatment of Ultra High Density Polyethylene and Polyethylene Terephthalate in Sub- and Supercritical Freons Media. Sverhkriticheskie Flyuidy: Teoriya i Praktika, 2, 50-55 (2018). https://doi.org/10.34984/SCFTP.2018.13.2.005
Key words: supercritical fluid impregnation, fluorescence microscopy, photoactive compounds
Fluorescence microscopy was used to study the distribution of photoactive compounds
(PAC) in polymer matrixes impregnated in supercritical carbon dioxide (SC-CO2). It
is shown that the character of the PAC distribution in polymers depends on the
nature of the matrix, the degree of interaction of the introduced compounds with
polymer fragments, and the sizes of the photoactive compounds corresponding diffusion
coefficients. Such information may be in demand for the development of functionally
oriented polymer systems impregnated with РAС (heterogeneous catalysis,
photochromic materials, medicine).
doi:10.34984/SCFTP.2018.13.2.006
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7.0.100-2018
Features of Distribution of Photoactive Fillers in Polymeric Matrixes of Different Nature at their Impregnation in the Medium of Supercritical Carbon Dioxide / – Текст : непосредственный // Сверхкритические Флюиды: Теория и Практика.. – 2018. – Т. 13. – № 2. – С. 56-68. - DOI: 10.34984/SCFTP.2018.13.2.006
TRANSLIT
Osobennosti raspredeleniya fotoaktivnyh napolnitelej v polimernyh matricah raznoj prirody pri ih impregnacii v srede sverhkriticheskogo / – Sverhkriticheskie Flyuidy: Teoriya i Praktika.. – 2018. – Т. 13. – № 2. – S. 56-68. - DOI: 10.34984/SCFTP.2018.13.2.006
En
Features of Distribution of Photoactive Fillers in Polymeric Matrixes of Different Nature at their Impregnation in the Medium of Supercritical Carbon Dioxide. Sverhkriticheskie Flyuidy: Teoriya i Praktika, 2, 56-68 (2018). https://doi.org/10.34984/SCFTP.2018.13.2.006
Key words: cyclone separator, supercritical fluid extraction, extract recovery
A low-volume cyclone separator with changeable extract collection reservoirs for the
supercritical fluid extraction is designed. A method for manufacturing the designed
separator by 3D-printing from an available polymer is proposed. It is shown that the
designed small volume separator allows for a greater extract recovery compared to a
standard large volume cyclone separator in the supercritical fluid extraction.
doi:10.34984/SCFTP.2018.13.2.007
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7.0.100-2018
Small Volume Cyclone Separator for Supercritical Fluid Extraction / – Текст : непосредственный // Сверхкритические Флюиды: Теория и Практика.. – 2018. – Т. 13. – № 2. – С. 69-74. - DOI: 10.34984/SCFTP.2018.13.2.007
TRANSLIT
Ciklonnyj separator malogo ob"ema dlya sverhkriticheskoj flyuidnoj ekstrakcii / – Sverhkriticheskie Flyuidy: Teoriya i Praktika.. – 2018. – Т. 13. – № 2. – S. 69-74. - DOI: 10.34984/SCFTP.2018.13.2.007
En
Small Volume Cyclone Separator for Supercritical Fluid Extraction. Sverhkriticheskie Flyuidy: Teoriya i Praktika, 2, 69-74 (2018). https://doi.org/10.34984/SCFTP.2018.13.2.007
Key words: lignin, black liquor, supercritical water, gasification, corrosion, salt preci pitation
The works devoted to the processing of the pulp and paper industry wastes via environmentally
benign supercritical water conversion are analyzed. The high efficiency of production
of combustible gases above 873 K is demonstrated. Mechanisms of the conjugate
conversion of organic and mineral components of wastes are considered. The main obstacles
to the industrial implementation of the processes under consideration, such as plugging
of pi pelines, salt deposition and corrosion of structural materials, are discussed.
doi:10.34984/SCFTP.2018.13.3.002
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ГОСТ
7.0.100-2018
Processing of Pulp and Paper Industry Wastes by Supercritical Water Gasification / – Текст : непосредственный // Сверхкритические Флюиды: Теория и Практика.. – 2018. – Т. 13. – № 3. – С. 8-19. - DOI: 10.34984/SCFTP.2018.13.3.002
TRANSLIT
Pererabotka othodov cellyuloznobumazhnoj promyshlennosti v sverhkriticheskoj vode / – Sverhkriticheskie Flyuidy: Teoriya i Praktika.. – 2018. – Т. 13. – № 3. – S. 8-19. - DOI: 10.34984/SCFTP.2018.13.3.002
En
Processing of Pulp and Paper Industry Wastes by Supercritical Water Gasification. Sverhkriticheskie Flyuidy: Teoriya i Praktika, 3, 8-19 (2018). https://doi.org/10.34984/SCFTP.2018.13.3.002
Key words: supercritical carbon dioxide, biomaterial processing, sterilization, decellularization, impregnation, tissue engineering
In the review, the key aspects to the modification of biocompatible materials are
described based on treatment in supercritical carbon dioxide medium. Main trends in
the area include the fabrication of three-dimensional scaffolds, sterilization of medical
devices, mammalian tissue decellularization and material impregnation with bio-active
molecules. Due to non-destructive action of the supercritical carbon dioxide medium
towards extracellular matrix’s architecture, preservation of inherent biomechanical
properties and structure of treated biomaterials, avoidance of purification and postprocessing
steps, the technique is considered as a powerful tool to solve the urgent
issues of biomaterials science.
doi:10.34984/SCFTP.2018.13.3.003
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ГОСТ
7.0.100-2018
Supercritical Carbon Dioxide — a Powerful Tool for Green Biomaterial Chemistry / – Текст : непосредственный // Сверхкритические Флюиды: Теория и Практика.. – 2018. – Т. 13. – № 3. – С. 20-32. - DOI: 10.34984/SCFTP.2018.13.3.003
TRANSLIT
Sverhkriticheskij dioksid ugleroda — universal'nyj instrument dlya formirovaniya biosovmestimyh materialov / – Sverhkriticheskie Flyuidy: Teoriya i Praktika.. – 2018. – Т. 13. – № 3. – S. 20-32. - DOI: 10.34984/SCFTP.2018.13.3.003
En
Supercritical Carbon Dioxide — a Powerful Tool for Green Biomaterial Chemistry. Sverhkriticheskie Flyuidy: Teoriya i Praktika, 3, 20-32 (2018). https://doi.org/10.34984/SCFTP.2018.13.3.003
Spin Probe Method for Diagnostics of Polyster Porous Matrixes Formed in Supercritical Carbon Dioxide
Key words: porous polymeric materials, alifatic polyesters, nitroxide radicals, electron paramagnetic resonance
The review is devoted to the electron paramagnetic resonance (EPR) studies of porous
polymer materials (matrixes) obtained from aliphatic polyesters and doped with
paramagnetic biologically active substances by means of supercritical fluid technologies.
Particular attention is paid to the possibilities of the EPR-spectroscopy for establishing
the regularities of the formation of the matrixes, the subsequent characterization of
the materials obtained, and also the features of the dopant release to aqueous solutions
in vitro.
doi:10.34984/SCFTP.2018.13.3.004
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ГОСТ
7.0.100-2018
Spin Probe Method for Diagnostics of Polyster Porous Matrixes Formed in Supercritical Carbon Dioxide / – Текст : непосредственный // Сверхкритические Флюиды: Теория и Практика.. – 2018. – Т. 13. – № 3. – С. 33-44. - DOI: 10.34984/SCFTP.2018.13.3.004
TRANSLIT
Metod spinovogo zonda dlya diagnostiki poristyh matriksov na osnove poliefirov, sformirovannyh s ispol'zovaniem sverhkriticheskogo dioksida ugleroda / – Sverhkriticheskie Flyuidy: Teoriya i Praktika.. – 2018. – Т. 13. – № 3. – S. 33-44. - DOI: 10.34984/SCFTP.2018.13.3.004
En
Spin Probe Method for Diagnostics of Polyster Porous Matrixes Formed in Supercritical Carbon Dioxide. Sverhkriticheskie Flyuidy: Teoriya i Praktika, 3, 33-44 (2018). https://doi.org/10.34984/SCFTP.2018.13.3.004
Key words: supercritical fluid chromatography, preparative SFC, 1,2-aminoalcohols, pharmaceutical substances
Preparative separation of enantiomers is one of the most common applications of
supercritical fluid technologies in modern production practice. In this review, methods
for the preparative separation of enantiomers of pharmaceutical substances in which
a 1,2-amino alcohol moiety is present are provided, using supercritical fluid
chromatography. The types of chiral phases used in supercritical fluid chromatography
are also briefly considered.
doi:10.34984/SCFTP.2018.13.3.005
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ГОСТ
7.0.100-2018
Chiral Supercritical Fluid Chromatography of 1,2-Aminoalcohols / – Текст : непосредственный // Сверхкритические Флюиды: Теория и Практика.. – 2018. – Т. 13. – № 3. – С. 45-55. - DOI: 10.34984/SCFTP.2018.13.3.005
TRANSLIT
Hiral'naya sverhkriticheskaya flyuidnaya hromatografiya 1,2-aminospirtov / – Sverhkriticheskie Flyuidy: Teoriya i Praktika.. – 2018. – Т. 13. – № 3. – S. 45-55. - DOI: 10.34984/SCFTP.2018.13.3.005
En
Chiral Supercritical Fluid Chromatography of 1,2-Aminoalcohols. Sverhkriticheskie Flyuidy: Teoriya i Praktika, 3, 45-55 (2018). https://doi.org/10.34984/SCFTP.2018.13.3.005