Zobrazeno 1 - 5
of 5
pro vyhledávání: '"S. V. Parmon"'
Autor:
S. V. Parmon, I. I. Lishtvan, Yu. G. Yanuta, A. M. Abramets, N. S. Pershai, V. P. Strigutskii
Publikováno v:
Solid Fuel Chemistry. 51:308-314
The sorption properties of materials formed after the extraction of humic substances (HSs) from caustobioliths, that is, the dehuminated caustobiolith (DC) residues insoluble in acids and alkalis, as promising secondary humic raw materials for the pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b9b7354e10d2218166266c3e7886cb5e
https://doi.org/10.3103/s0361521917050111
https://doi.org/10.3103/s0361521917050111
Publikováno v:
Solid Fuel Chemistry. 47:153-164
The fractional group composition of humic substances and the chemical structure of humic acids isolated from peats of different genesis from different depths of occurrence in peat deposits with the use of two extractants (0.1 N NaOH and 0.1 M Na4P2O7
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4830c042861cf318b7972e580e2fea18
https://doi.org/10.3103/s0361521913030051
https://doi.org/10.3103/s0361521913030051
Autor:
V. P. Strigutskii, V. S. Pekhtereva, I. I. Lishtvan, A. E. Tomson, T. V. Sokolova, S. V. Parmon
Publikováno v:
Solid Fuel Chemistry. 45:143-148
The treatment of peat with the solutions of phosphoric, citric, and oxalic acids in concentrations of 10−4 and 10−2 mol/l at solid phase to liquid ratios of 1: 2.5 and 1: 5 increased the absorption of ammonia by 6.4–39.7%. The absorption of amm
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c50c6e818f5aeb74db0233d3e3c363e4
https://doi.org/10.3103/s0361521911030086
https://doi.org/10.3103/s0361521911030086
Autor:
T. L. Zaitseva, S. V. Parmon
Publikováno v:
Solid Fuel Chemistry. 43:273-276
A water-ethanol extract from cotton grass-sphagnum peat was prepared. Six fractions were separated from the peat extract using sequential extraction with a system of solvents with linearly increasing polarities. The chemical composition of each of th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::49dcf8300705f6283bc02154d21280a6
https://doi.org/10.3103/s0361521909050024
https://doi.org/10.3103/s0361521909050024
Publikováno v:
Journal of Applied Spectroscopy. 51:1287-1291
Natural waxes are being used extensively in a wide variety of coatings, the applications being determined by their chemical composition and physical structure, which govern the entire set of engineering and consumer-oriented properties of these mater
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::62abd57a654b708dd8e8bb159feb1c4e
https://doi.org/10.1007/bf00659934
https://doi.org/10.1007/bf00659934