База данных: Статьи
Страница 2, Результатов: 17
Отмеченные записи: 0
11.
Подробнее
35
Z63
Zhantassov, K.
Development of technology for extraction of lead and zinc oxides from dust and slags during the utilization of lead plant waste. [Текст] / K. Zhantassov // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №2. - P. 81-85
ББК 35
Рубрики: chemical Technology
Кл.слова (ненормированные):
waste -- lead waste -- oxic compounds -- lead and zinc compounds -- environmental pollution -- toxic waste processing -- waste disposal
Аннотация: The article proposes methods for the extraction of lead and zinc from slag waste and selects the optimal method for the selective extraction of zinc and lead oxides from dust and slags of lead production. The proposed technology of continuous carbon-free selective extraction of zinc and lead from the dust of electric steelmaking production allows the use of lead production slag, which is fed into a rotating drum furnace in two oppositely directed streams. During the movement of lead slag in the furnace drum and the burning of the torch, lead and zinc are more completely extracted from the dust-like material, where the transporting object is compressed air, and the purified flue gas after the gas is further purified by means of a smoke pump is released into the atmosphere.
Держатели документа:
WKU
Доп.точки доступа:
Bagova, Z.
Turebekova, G.
Sapargaliyeva, B.
Pusurmanova, G.
Z63
Zhantassov, K.
Development of technology for extraction of lead and zinc oxides from dust and slags during the utilization of lead plant waste. [Текст] / K. Zhantassov // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №2. - P. 81-85
Рубрики: chemical Technology
Кл.слова (ненормированные):
waste -- lead waste -- oxic compounds -- lead and zinc compounds -- environmental pollution -- toxic waste processing -- waste disposal
Аннотация: The article proposes methods for the extraction of lead and zinc from slag waste and selects the optimal method for the selective extraction of zinc and lead oxides from dust and slags of lead production. The proposed technology of continuous carbon-free selective extraction of zinc and lead from the dust of electric steelmaking production allows the use of lead production slag, which is fed into a rotating drum furnace in two oppositely directed streams. During the movement of lead slag in the furnace drum and the burning of the torch, lead and zinc are more completely extracted from the dust-like material, where the transporting object is compressed air, and the purified flue gas after the gas is further purified by means of a smoke pump is released into the atmosphere.
Держатели документа:
WKU
Доп.точки доступа:
Bagova, Z.
Turebekova, G.
Sapargaliyeva, B.
Pusurmanova, G.
12.
Подробнее
24
I-54
Ilyassov, A. E.
Investigation of the sorption characteristics of activated carbons. [Текст] / A. E. Ilyassov, A.О. Baikonurova, B. N. Surimbayev // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №2. - P. 105-109
ББК 24
Рубрики: chemistry
Кл.слова (ненормированные):
activated carbon -- sorption -- sorption capacity of coal -- sorbent -- gold
Аннотация: The article presents the results of a comparison of the sorption characteristics for gold of crushed activated carbon of the foreign Haycarb brand, obtained from expensive raw materials - coconut shells, and crushed activated carbon of the domestic Shubarkol brand, obtained from relatively cheap raw materials - low-ash coking coal. The activated carbon Shubarkol crushed to a class of -3.6+1.0 mm, was produced in Kazakhstan from coking coal by Shubarkolkomir JSC.
Держатели документа:
WKU
Доп.точки доступа:
Baikonurova, A.О.
Surimbayev, B.N.
I-54
Ilyassov, A. E.
Investigation of the sorption characteristics of activated carbons. [Текст] / A. E. Ilyassov, A.О. Baikonurova, B. N. Surimbayev // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №2. - P. 105-109
Рубрики: chemistry
Кл.слова (ненормированные):
activated carbon -- sorption -- sorption capacity of coal -- sorbent -- gold
Аннотация: The article presents the results of a comparison of the sorption characteristics for gold of crushed activated carbon of the foreign Haycarb brand, obtained from expensive raw materials - coconut shells, and crushed activated carbon of the domestic Shubarkol brand, obtained from relatively cheap raw materials - low-ash coking coal. The activated carbon Shubarkol crushed to a class of -3.6+1.0 mm, was produced in Kazakhstan from coking coal by Shubarkolkomir JSC.
Держатели документа:
WKU
Доп.точки доступа:
Baikonurova, A.О.
Surimbayev, B.N.
13.
Подробнее
24
K17
Кairbekov, Zh. К.
Physicochemical and antioxidant properties of humic acids of low-mineralized peloids of the Tuzkol deposit. [Текст] / Zh. К. Кairbekov, I. M. Jeldybayeva, D. Z. Аbilmazhinova, S. M. Suimbayeva // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №3. - P. 48-53
ББК 24
Рубрики: chemistry
Кл.слова (ненормированные):
Low-mineralized sludge sulphide mud (peloids) -- humic -- fulvic -- hymatomelanic -- humic acids -- antioxidant activity
Аннотация: As a result of studies it was found that the peloids of the deposit of Tuzkol Lake (Republic of Kazakhstan) are high quality medium-sulfide, weakly alkaline sludge muds. It was found that peloid-derived humic acid contains 49.63 % oxygen, 22.37% carbon, 9.65 % silicon and 6.26% calcium; it also contains Na, Mg, Al, Fe and an insignificant amount of S, Cl, K, F. Electron microscopy and IR spectroscopy analysis of the molecular structure of humic substances of peloids indicated that their macromolecule consists of framework olefinic and aromatic fragments with a substantial proportion of unoxidized aliphatic groups, as well as aromatic structures containing carboxyl groups. The findings of amperometric detection of the antioxidant properties of humic acids suggest that they have antioxidant activity, which will make it possible to use them as a biologically active substance for medicines.
Держатели документа:
WKU
Доп.точки доступа:
Jeldybayeva, I.M.
Аbilmazhinova, D.Z.
Suimbayeva, S.M.
K17
Кairbekov, Zh. К.
Physicochemical and antioxidant properties of humic acids of low-mineralized peloids of the Tuzkol deposit. [Текст] / Zh. К. Кairbekov, I. M. Jeldybayeva, D. Z. Аbilmazhinova, S. M. Suimbayeva // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №3. - P. 48-53
Рубрики: chemistry
Кл.слова (ненормированные):
Low-mineralized sludge sulphide mud (peloids) -- humic -- fulvic -- hymatomelanic -- humic acids -- antioxidant activity
Аннотация: As a result of studies it was found that the peloids of the deposit of Tuzkol Lake (Republic of Kazakhstan) are high quality medium-sulfide, weakly alkaline sludge muds. It was found that peloid-derived humic acid contains 49.63 % oxygen, 22.37% carbon, 9.65 % silicon and 6.26% calcium; it also contains Na, Mg, Al, Fe and an insignificant amount of S, Cl, K, F. Electron microscopy and IR spectroscopy analysis of the molecular structure of humic substances of peloids indicated that their macromolecule consists of framework olefinic and aromatic fragments with a substantial proportion of unoxidized aliphatic groups, as well as aromatic structures containing carboxyl groups. The findings of amperometric detection of the antioxidant properties of humic acids suggest that they have antioxidant activity, which will make it possible to use them as a biologically active substance for medicines.
Держатели документа:
WKU
Доп.точки доступа:
Jeldybayeva, I.M.
Аbilmazhinova, D.Z.
Suimbayeva, S.M.
14.
Подробнее
35
Y45
Yermagambet, B. T.
Synthesis of carbon nanofibers based on humic acid and polyacryonitrile by electrospinning method. [Текст] / B. T. Yermagambet // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №3. - P. 103-110
ББК 35
Рубрики: chemical Technology
Кл.слова (ненормированные):
carbon nanofiber (CNF) -- humic acid (HA) -- polyacrylonitrile (PAN) -- electrospinning -- oxidation -- formation -- carbonization
Аннотация: The article describes a method for obtaining carbon nanofibers (CNFs) based on humic acid from oxidized coal of the Maikuben basin and polycarlonitrile (PAN) by electrospinning in laboratory conditions.
Держатели документа:
WKU
Доп.точки доступа:
Kazankapova, M.K.
Nauryzbayeva, A.T.
Kassenova, Zh.M.
Y45
Yermagambet, B. T.
Synthesis of carbon nanofibers based on humic acid and polyacryonitrile by electrospinning method. [Текст] / B. T. Yermagambet // News of national academy of sciences of the republic of Kazakhstan. . - 2021. - №3. - P. 103-110
Рубрики: chemical Technology
Кл.слова (ненормированные):
carbon nanofiber (CNF) -- humic acid (HA) -- polyacrylonitrile (PAN) -- electrospinning -- oxidation -- formation -- carbonization
Аннотация: The article describes a method for obtaining carbon nanofibers (CNFs) based on humic acid from oxidized coal of the Maikuben basin and polycarlonitrile (PAN) by electrospinning in laboratory conditions.
Держатели документа:
WKU
Доп.точки доступа:
Kazankapova, M.K.
Nauryzbayeva, A.T.
Kassenova, Zh.M.
15.
Подробнее
65
B 40
Bei, L.
The evaluation and influencing factors of innovation efficiency of chinese new energy enterprises [Текст] / L. Bei, O. Koshkina // Транзитная экономика: научно-практический журнал. - 2024. - №3. - с. 4-14
ББК 65
Рубрики: Экономика. Экономические науки
Кл.слова (ненормированные):
Innovation efficiency -- New energy enterprises -- DEA - Malmquist-Tobit -- Innovation Indicator -- New Energy
Аннотация: New energy, as the core of a low-carbon economy and the key to energy transformation has received much attention. In view of this, this article reveals the innovation efficiency of new energy enterprises, measures the impact intensity of relevant influencing factors, and has important guiding significance for new energy enterprises to formulate innovative development strategies. This article uses the DEA Malmquist index method and Tobit regression model for empirical research.
Доп.точки доступа:
Koshkina, O.
B 40
Bei, L.
The evaluation and influencing factors of innovation efficiency of chinese new energy enterprises [Текст] / L. Bei, O. Koshkina // Транзитная экономика: научно-практический журнал. - 2024. - №3. - с. 4-14
Рубрики: Экономика. Экономические науки
Кл.слова (ненормированные):
Innovation efficiency -- New energy enterprises -- DEA - Malmquist-Tobit -- Innovation Indicator -- New Energy
Аннотация: New energy, as the core of a low-carbon economy and the key to energy transformation has received much attention. In view of this, this article reveals the innovation efficiency of new energy enterprises, measures the impact intensity of relevant influencing factors, and has important guiding significance for new energy enterprises to formulate innovative development strategies. This article uses the DEA Malmquist index method and Tobit regression model for empirical research.
Доп.точки доступа:
Koshkina, O.
16.
Подробнее
20.1
Ч-57
Zhenjie, G.
SWOT Analysis of Corporate Carbon Emissions:The Case of China [Текст] / G. Zhenjie // Транзитная экономика. - 2025. - №4. - Р. 12-18.
ББК 20.1
Рубрики: Ecology.
Кл.слова (ненормированные):
SWOT -- Analysis -- Corporate -- Carbon -- Emissions -- Case -- China -- reduction
Аннотация: SWOT Analysis of Corporate Carbon Emissions:The Case of China.
Держатели документа:
ЗКУ.
Ч-57
Zhenjie, G.
SWOT Analysis of Corporate Carbon Emissions:The Case of China [Текст] / G. Zhenjie // Транзитная экономика. - 2025. - №4. - Р. 12-18.
Рубрики: Ecology.
Кл.слова (ненормированные):
SWOT -- Analysis -- Corporate -- Carbon -- Emissions -- Case -- China -- reduction
Аннотация: SWOT Analysis of Corporate Carbon Emissions:The Case of China.
Держатели документа:
ЗКУ.
17.
Подробнее
65
Ц 55
Jiang, Ch.
The construction of core competitiveness of foreign trade enterprises under the background of supply chain globalization [Текст] / Ch. Jiang // Транзитная экономика. - 2025. - №4. - Р. 69-76.
ББК 65
Рубрики: Economics.
Кл.слова (ненормированные):
The construction -- core -- competitiveness -- trade -- enterprises -- background -- supply -- chain
Аннотация: The construction of core competitiveness of foreign trade enterprises under the background of supply chain globalizationSWOT Analysis of Corporate Carbon Emissions:The Case of China.
Держатели документа:
ЗКУ.
Ц 55
Jiang, Ch.
The construction of core competitiveness of foreign trade enterprises under the background of supply chain globalization [Текст] / Ch. Jiang // Транзитная экономика. - 2025. - №4. - Р. 69-76.
Рубрики: Economics.
Кл.слова (ненормированные):
The construction -- core -- competitiveness -- trade -- enterprises -- background -- supply -- chain
Аннотация: The construction of core competitiveness of foreign trade enterprises under the background of supply chain globalizationSWOT Analysis of Corporate Carbon Emissions:The Case of China.
Держатели документа:
ЗКУ.
Страница 2, Результатов: 17