Zobrazeno 1 - 10
of 12
pro vyhledávání: '"R. A. Ramazanova"'
Publikováno v:
Metalurgija, Vol 62, Iss 2, Pp 275-278 (2023)
The article investigates dressing of zinc concentrate of Zhezkent processing plant with the purpose of receiving conditioned zinc concentrate and copper product output. The scheme of the zinc concentrate ressing is suggested which includes the follow
Externí odkaz:
https://doaj.org/article/7a877bee90434e439e6a4105761b147f
Autor:
B. S. Saurbayeva, Y. N. Ivashchenko, R. A. Ramazanova, B. S. Tantybayeva, S. K. Kabdrakhmanova
Publikováno v:
Metalurgija, Vol 62, Iss 1, Pp 29-32 (2023)
The article deals with the research of component composition and catalitic reactivity of metallurgical waste products. The slags component composition was investigated by X-ray fluorescence analysis. The slag stuff has been modified with alkali (NaOH
Externí odkaz:
https://doaj.org/article/78a6b0776a3b4680b1afe43727daf804
Autor:
R. A. Ramazanova, S. V. Mamyachenkov, N. V. Seraya, G. K. Daumova, R. A. Aubakirova, Zh. T. Bagasharova
Publikováno v:
Metalurgija, Vol 60, Iss 3-4, Pp 407-410 (2021)
The study investigates the kinetics of zinc leaching from smithsonite with sulfuric acid in order to expand the zinc production feedstocks. The recovery rate of zinc from smithsonite into water-soluble zinc sulfate was found at different leaching tim
Externí odkaz:
https://doaj.org/article/4bbb6b1aeefb41ba9fc716f0dbc38e1f
Autor:
V. I. Samoilov, N. V. Seraya, G. K. Daumova, E. M. Azbanbaev, R. A. Aubakirova, R. A. Ramazanova
Publikováno v:
Metalurgija, Vol 60, Iss 1-2, Pp 113-116 (2021)
This article aims at the research of kinetics of the sulphuric acid leaching of zinc from calamine (hemimorphite) of Shaimerden deposits. The ratio of zinc extraction from calamine to water-soluble zinc sulphate was determined at various leaching dur
Externí odkaz:
https://doaj.org/article/51be1a16e87f43fa8fd9cb74cbbd68aa
Publikováno v:
Аграрная наука Евро-Северо-Востока, Vol 62, Iss 1, Pp 47-51 (2018)
Provision of stable grain production ensures food security for any state. Wheat is the main grain crop in Kazakhstan. But harsh climate does not allow to get high yields on the regular. Therefore, it is necessary to find grain reserves by introducing
Externí odkaz:
https://doaj.org/article/590ca4810aa5490d8998b7bcdafb5214
Publikováno v:
Journal of Space Safety Engineering. 8:259-265
The development of astronautics is approaching the stage of colonization of space objects of the Solar System, which will lead to regular and long-term manned space flights. Perspective projects of colonization and long-term stay of a man in space fl
Publikováno v:
Metallurgist. 64:169-175
Shaimerden oxidized zinc ore containing more than 21% wt.% zinc is studied in this work. When the first research on hydrometallurgical processing of this ore was conducted the authors of this research determined the following parameters for ore leach
Publikováno v:
Scopus-Elsevier
The matter of the effectiveness of applying smart technologies in agriculture of the Republic of Kazakhstan will be of interest to the academic community, regardless of territorial affiliation. The relevance of the research is in the need to inform f
Publikováno v:
Russian Agricultural Sciences. 44:153-156
In an experiment with the use of a stable isotope of nitrogen 15N, the impact of fertilizers on grain yield of spring wheat and spring triticale on the dark chestnut soil in the dry steppe zone of Northern Kazakhstan was estimated. The maximum yield
Publikováno v:
Metallurgist. 60:629-634
The object studied is Shaimerden oxidized zinc ore deposit containing zinc, lead, copper, iron, calcium, magnesium, aluminum, manganese and silicon. Chemical and mineralogical composition of the ore are investigated. It is established that ore coarse