Zobrazeno 1 - 10
of 41
pro vyhledávání: '"A. F. Shmidt"'
Publikováno v:
Solid Fuel Chemistry. 53:129-134
The main characteristics of grade 1B brown coal from the Khandinskoe deposit were determined. These are low-sulfur coals. The bitumen content varies from 1.5 to 17.5%, and the average wax content of bitumen is 61.8%. The concentration of humic acids
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::509388139dcf4de3125b0343077af6a7
https://doi.org/10.3103/s0361521919030108
https://doi.org/10.3103/s0361521919030108
Publikováno v:
Solid Fuel Chemistry. 52:59-61
The composition and properties of coal from the Bodonskoe deposit were studied. It was shown that this is low-sulfur (S d = 0.3–1.0%) and medium-ash grade 1B brown coal with a high yield of volatile substances (V daf = 56.1–60.9%). The humic acid
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d3959cb7d2676e08d0f0cbb209730e4e
https://doi.org/10.3103/s0361521918020118
https://doi.org/10.3103/s0361521918020118
Publikováno v:
Solid Fuel Chemistry. 50:316-325
The results of studying the Sr, Sc, Mn, B, and P contents of coals from Eastern Siberia are represented. Data on the distribution of these elements in the coal fractions of the most enriched samples are given. The concentrations of As, F, Hg, Be, Pb,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f87c50c2095b287533b4b8d4d5ffff9b
https://doi.org/10.3103/s0361521916050098
https://doi.org/10.3103/s0361521916050098
Publikováno v:
Kinetics and Catalysis. 56:190-196
A phase trajectory analysis has demonstrated that, in the Mizoroki-Heck reaction involving competing aryl bromides, variation of reaction parameters (nature and concentration of the catalyst precursor and the presence/absence of a reductant and a sta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a3f03c0ea22c06e54f06f15ff432cf72
https://doi.org/10.1134/s0023158415020068
https://doi.org/10.1134/s0023158415020068
Publikováno v:
Solid Fuel Chemistry. 48:170-179
The results of studying the adsorption properties of black coal, semicoke, and waste coals from a number of coal deposits in Irkutsk oblast and Sakhalin and the Irsha-Borodino deposit are reported. The results of a comparative study of the adsorption
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c448bd565af227e77a6f58772fded98e
https://doi.org/10.3103/s0361521914030100
https://doi.org/10.3103/s0361521914030100
Publikováno v:
Solid Fuel Chemistry. 45:309-312
The composition and properties of black coals from the Khingui coal manifestation were evaluated. It was found that the test coals are noncaking low-sulfur (Sd to 0.49%) coals with a high yield of volatile substances (Vdaf= 43.52–51.42%). The high
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8d02dde2305f907a66fb03af61db9c06
https://doi.org/10.3103/s0361521911050132
https://doi.org/10.3103/s0361521911050132
Publikováno v:
Solid Fuel Chemistry. 44:234-237
The composition and properties of coals from the Luzhki section of the Zabitui deposit in the Irkutsk Basin were studied. It was found that Luzhki coals are sulfur coals (Sd to 4.76%) with a high yield of volatile substances (Vdaf = 42.8–53.6%) and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::16c7f33f5b8f6e7dff9de3dacb54a7c7
https://doi.org/10.3103/s036152191004004x
https://doi.org/10.3103/s036152191004004x
Publikováno v:
Russian Journal of Applied Chemistry. 83:453-457
Effect of additives (reducing agent and tetraalkylammonium salt) on the course of the reaction of styrene arylation by bromobenzene (Heck reaction) in the absence of stabilizing ligands was studied. Conditions for effective catalysis of the reaction
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::44f0c5b3862f0240f44294840ea8d695
https://doi.org/10.1134/s1070427210030158
https://doi.org/10.1134/s1070427210030158
Autor:
A. A. Kurokhtina, A. F. Shmidt, A. N. Sapozhnikov, Boris A. Trofimov, Anastasiya G. Mal'kina, I. E. Vasil’eva, Spartak S. Khutsishvili, Tamara I. Vakul'skaya
Publikováno v:
Doklady Chemistry. 431:94-98
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::26a919338eb175838ffdaecfd4b238be
https://doi.org/10.1134/s0012500810030080
https://doi.org/10.1134/s0012500810030080
Publikováno v:
Russian Journal of Applied Chemistry. 80:1695-1698
Effective procedures for raising the yield of the Heck reaction, based on the reactants (brombenzene, styrene), in the presence of the previously developed phosphine-free catalytic system (PdCl2 + NaOOCH + NaOAc) were suggested.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::17c79bc7f2b263c78060c58bf6fa79e5
https://doi.org/10.1134/s1070427207100187
https://doi.org/10.1134/s1070427207100187