Zobrazeno 1 - 10
of 224
pro vyhledávání: '"серная кислота"'
Publikováno v:
Труды БГТУ: Серия 2. Химические технологии, биотехнологии, геоэкология, Iss 2, Pp 56-63 (2022)
В работе рассмотрены способы производства безводного метасиликата натрия, определены основные этапы его получения: первый – синтез кр
Externí odkaz:
https://doaj.org/article/b36f0151646345bba35e62815f2d9081
Autor:
Srećko R. Stopić, Bernd G. Friedrich
Publikováno v:
Vojnotehnički Glasnik, Vol 67, Iss 3, Pp 561-572 (2019)
Sulfuric acid dissolution of rare earth elements from bastnasite ore was studied after reductive smelting with carbon as a reducing agent at 1600°C. The two-step strategy: 1.carbothermic reduction, and 2.dissolution with sulfuric acid at 70°C wa
Externí odkaz:
https://doaj.org/article/07a79209e5f1497380657a869bbf44a1
Autor:
Srećko R. Stopić, Bernd G. Friedrich
Publikováno v:
Vojnotehnički Glasnik, Vol 67, Iss 2, Pp 241-254 (2019)
Dissolution of rare earth elements from bastnasite ore was studied using different leaching agents such as sulfuric acid, hydrochloric acid, acetic acid, citric acid and sodium hydroxide at 70°C, with 1mol/L, solid/liquid ratio of 0.05 between 30
Externí odkaz:
https://doaj.org/article/3ff3dc7a55ad49d8801b29f983801d64
Publikováno v:
RUDN Journal of Engineering Research, Vol 19, Iss 2, Pp 254-261 (2018)
Purpose. The purpose of this work was to examine various aspects of the physico-chemical heap leaching technology at the Mkuju River in Tanzania. The objectives of the study were to determine the basic geotechnological conditions of the Mkuju River u
Externí odkaz:
https://doaj.org/article/c27bddb18aa84cc9a254940ad9db2c69
Autor:
Srećko R. Stopić, Bernd G. Friedrich
Publikováno v:
Vojnotehnički Glasnik, Vol 66, Iss 4, Pp 757-770 (2018)
Dissolution of rare earth elements from bastnasite ores was studied using sulfuric acid at the atmospheric pressure. The one step strategy with sulfuric acid was studied further and the results showed that filtering difficulties do not happen for
Externí odkaz:
https://doaj.org/article/b5227198f0c34bdba75db168420abcb0
Аннотация: В данной статье приведены сведения о технологиях производства хлористого калия путем механического обогащения калийных руд
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::536a4e1e989fbdcdfac7789f642852a3
Аннотация: В данной статье приведены сведения о технологиях производства хлористого калия путем механического обогащения калийных руд
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4a411216deedeffeec2c66dbf05885ab
Practical experience of the acid and bacterial underground leaching of uranium at the Semizbay field
Autor:
A. K. Naravas
Publikováno v:
Известия высших учебных заведений: Геология и разведка, Vol 0, Iss 5, Pp 81-84 (2016)
The discovery and investigation of the uranium field Semizbay are considered. The main parameters of lithological filtration inhomogeneity as well as geotechnological properties of the ore-bearing rocks are defined in terms of their influence on the
Externí odkaz:
https://doaj.org/article/ea8bed0ae47e4173a7a922eb70412022
Autor:
Ro‘Ziyeva Farangiz
Ushbu maqolada karbon kislotalarning funksional hosilalari murakkab efirlar, yog‘lar, sovunlarning fizik-kimyoviy xossalari, olinish usullari va ishlatilish sohalari haqida ma’lumotlar berilgan.
В статье приведены сведе
В статье приведены сведе
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::972f001970734b64c193f82d57f9d40a
Для повышения коррозионной стойкости титана предлагалось его поверхность подвергать азотированию. В данной работе использовались обр
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______3992::cfd0f1d415620d6257c422d6acccc6a2
https://elib.belstu.by/handle/123456789/56038
https://elib.belstu.by/handle/123456789/56038