Zobrazeno 1 - 10
of 38
pro vyhledávání: '"S. S. Stavitskaya"'
Publikováno v:
Eurasian Chemico-Technological Journal, Vol 7, Iss 1, Pp 67-72 (2005)
It is offered here the procedure of utilization of gas mask or respirator charge when operation term is expired. This technique enables to get not only high quality active carbon but also its oxidized variety that has properties of polyfunctional car
Externí odkaz:
https://doaj.org/article/90e0cb11ee144bc0835894921872444f
Publikováno v:
Theoretical and Experimental Chemistry. 50:187-190
Phosphorus-containing charcoals were obtained by modification of coconut shell activated charcoal by phosphoric acid at 400-900 °C under a stream of moist air. We show that with a rise in modification temperature, the catalytic activity of the charc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3f19244d0dec2d6050a6671879092fc6
https://doi.org/10.1007/s11237-014-9364-8
https://doi.org/10.1007/s11237-014-9364-8
Publikováno v:
Chinese Journal of Catalysis. 35:815-823
The development of environmentally friendly solid acid catalysts is a priority task. Highly oxidized activated carbon and their ion-substituted (saline) forms are effective proton transfer catalysts in esterification, hydrolysis, and dehydration, and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4104987d94c151a96ad471b09a7df7eb
https://doi.org/10.1016/s1872-2067(14)60147-9
https://doi.org/10.1016/s1872-2067(14)60147-9
Adsorption of copper ions by carbon adsorbents modified by phosphoric acid at different temperatures
Publikováno v:
Journal of Water Chemistry and Technology. 36:110-114
The article has investigated adsorption of copper ions by activated carbons from coconuts at different temperatures (400–900°C). Adsorption of copper ions was studied at different values of the pH and initial concentrations. It has been shown that
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4c43be78d25dc7ef7a00f68db092fecc
https://doi.org/10.3103/s1063455x14030023
https://doi.org/10.3103/s1063455x14030023
Absorption of hydrogen sulfide on starting and modified carbons produced from technical-grade lignin
Publikováno v:
Russian Journal of Applied Chemistry. 86:1029-1035
Processes in which hydrogen sulfide admixtures (from a 1% H2S + 99% Ar mixture) are removed by sorption on starting carbons and those modified with alkali metal ins of various sizes, made from technical-grade lignin, and hydrogen sulfide is eliminate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::63c4a6da9fd876875090cfbd2930b6a0
https://doi.org/10.1134/s107042721307015x
https://doi.org/10.1134/s107042721307015x
Publikováno v:
Theoretical and Experimental Chemistry. 48:272-277
New phosphorus-containing carbon adsorbents have been obtained by modification of coconut shells with phosphoric acid at temperatures of 400-900 °C in a stream of argon. The carbon modified with phosphoric acid has a somewhat reduced porous structur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4d7b52e532f8054822d47be3170d382a
https://doi.org/10.1007/s11237-012-9272-8
https://doi.org/10.1007/s11237-012-9272-8
Publikováno v:
Russian Journal of Applied Chemistry. 85:980-983
Accumulation of methane on coal samples prepared from technical lignin and directionally modified with alkali metal ions was studied. The reactivity of the coals was examined, and the rates of the surface oxidation of the carbon matrix and of the rea
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::97ed82352fb665a20823ec546116a0e6
https://doi.org/10.1134/s1070427212050250
https://doi.org/10.1134/s1070427212050250
Publikováno v:
Russian Journal of Applied Chemistry. 84:1726-1731
Sorption properties of a new composite sorbent containing Black Sea bottom sediments and oxidized carbon produced from a natural raw material, coconuts were examined. Quantitative characteristics demonstrating the selectivity of sorption of Cu2+, Zn2
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eea2bd67e60396406929ceb1ff565752
https://doi.org/10.1134/s1070427211100090
https://doi.org/10.1134/s1070427211100090
Autor:
S. S. Stavitskaya, N. V. Sych
Publikováno v:
Russian Journal of Applied Chemistry. 83:1895-1902
A brief review of the latest studies is given and the effect exerted by N, O, S, and P heteroatoms, properties of starting material, type and amount of a modifier, and treatment conditions on the structure, sorption, and catalytic properties of activ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6b2669981cd31062f5f3f0732191948a
https://doi.org/10.1134/s1070427210110017
https://doi.org/10.1134/s1070427210110017
Autor:
Vladimir V. Strelko, V. G. Mil’grandt, V. I. Yakovlev, N. N. Tsyba, S. S. Stavitskaya, A. S. Fedorishin
Publikováno v:
Russian Journal of Applied Chemistry. 83:281-286
New heterogeneous catalysts for synthesis of a biodiesel fuel, modified with strongly acidic groups, were developed. The catalysts are produced by pyrolysis and subsequent sulfation of fruit kernels and granulated porous copolymers and resins. The st
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9ac2a4d83a0b9cee89c589266b0e280f
https://doi.org/10.1134/s1070427210020187
https://doi.org/10.1134/s1070427210020187