Zobrazeno 1 - 10
of 32
pro vyhledávání: '"I. Chursin"'
Autor:
V. I. Chursin, P. M. Magomedova
Publikováno v:
Russian Journal of General Chemistry. 91:2633-2639
Publikováno v:
IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENII KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA. 64:63-70
The conditions for the synthesis of chrome tanning agent during the reduction of sodium dichromate with oligo - and polysaccharides have been investigated. The synthesis of the tanning agent is based on the reduction of hexavalent chromium Cr (VI) in
Autor:
V. I. Chursin, K. A. Gromova
Publikováno v:
Plasticheskie massy. :39-41
The results of a study of the effect of the type and consumption of binder and plasticizers on the physicochemical characteristics of composite materials obtained using chromium-containing fibrous wastes from leather production are presented. The abs
Publikováno v:
IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENII KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA. 62:110-116
Comparative studies of the deposition of tanning chromium compounds from waste tanning solutions of tannery production containing from 3 to 5 g/l chromium oxide were carried out, using as a chemical reagents a suspension of magnesium hydroxide and so
Publikováno v:
IOP Conference Series: Earth and Environmental Science. 981:032043
Middle Volga region has a variety of natural resources. In the modern world, the primary task is the competent and reasonable resources consumption. For more complete and rational use of territory natural resource potential, we will consider such imp
Publikováno v:
IOP Conference Series: Earth and Environmental Science. 981:042091
The article touches upon the problem of Kuznetsk districtforest management, forestry structure analysis, as well as assessment of the region climatic factors. In conclusion, measures to improve forest management efficiency are proposed. Forests locat
Publikováno v:
IOP Conference Series: Earth and Environmental Science. 981:032039
Based on modern data of environmental information, an assessment of agricultural landscape ecological state in Middle Volga was made, the state of which is unsatisfactory, this is due to assessments of land prevailing types ecological state in natura
Publikováno v:
IOP Conference Series: Earth and Environmental Science. 867:012160
Autor:
V. I. Chursin, A. A. Borisov
Publikováno v:
LEATHER AND FUR IN THE XXI CENTURY: TECHNOLOGY, QUALITY, ENVIRONMENTAL MANAGEMENT, EDUCATION
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f18204f2f9900f2d0e460b0ee830470a
https://doi.org/10.31554/978-5-7925-0601-5-2020-28-34
https://doi.org/10.31554/978-5-7925-0601-5-2020-28-34
Autor:
V. I. Chursin, K. V. Obolenskaya
Publikováno v:
Russian Journal of Applied Chemistry. 84:2083-2087
Conditions in which a composite chromium tanning agent can be obtained in the presence of glyoxal were studied. It was found that the expenditure of the aldehyde and sulfuric acid affects the reduction kinetics of hexavalent chromium. Spectrophotomet