Results 21 to 30 of about 3,316 (202)
Ammonia-producing bacteria leaching feature of alkaline copper oxide ore
工程科学学报, 2017 To investigate the leaching characteristic of alkaline copper dioxide ore by ammonia producing bacteria, the influence of the ammonia producing bacteria on the ore during the process was analyzed.
YIN Sheng-hua, XIE Fang-fang, CHEN Xun
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Preparation and flotation performance of thionocarbamates
工程科学学报, 2023 To address the problems of byproduct treatment and pollution in thionocarbamate preparation, four novel processes for preparing O-isopropyl-N-ethyl thionocarbamate (IPETC) were designed, which can coproduce 4-(tert-butyl)benzyl mercaptan (BBSH), sodium ...
Xin MA +4 more
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Effectiveness acidic pre-cleaning for copper-gold ore
REM: International Engineering JournalThe presence of copper-bearing minerals is known to bring on many challenges during the cyanidation of gold ore, like high consumption of cyanide and low extraction of metal, which are undesirable impacts on the auriferous recovery in the subsequent ...
Antonio Clareti Pereira +1 more
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Dissolution of pure chalcopyrite with manganese nodules and waste water
Journal of Materials Research and Technology, 2020 Chalcopyrite is the most abundant copper ore and, consequently, the most utilised to produce metallic copper. The main route of treatment is through pyrometallurgical processes, but these emit significant quantities of SO2 into the atmosphere (e.g.
Norman Toro +5 more
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Leaching kinetic of copper oxide ore containing carbonate gangue in the acid condition
工程科学学报, 2016 This article is focused on the leaching kinetic of copper oxide ore containing carbonate gangue.The effects of temperature,acid concentration,particle size,liquid-to-solid ratio and stirring rate on leaching of the copper oxide ore were determined.The ...
WU Ai-xiang +4 more
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Нижневолжский археологический вестник, 2023 The paper summarizes for the first time a special study data of macrolithic stone tools from the burials of the Yamnaya culture in the Western Orenburg and the Samara Volga regions.
Nina L. Morgunova, Airat A. Faizullin
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Improvement experiment study of alkaline copper leaching bacteria
工程科学学报, 2015 Alkaline leaching bacteria are new efficient strains for processing alkaline minerals. Slurry gradient domestication and ultraviolet mutagenesis were introduced to improve the adaptive capacity to environment and leaching rate of the strains.
HU Kai-jian +4 more
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Kuangchan zonghe liyongThe reserves of nickel ore resources are rich in China, mainly nickel sulfide.With the continuous exploitation of the high-grade nickel sulfide ore with high quality and easy to choose, its reserves and production are decreasing year by year.
Yingying SHEN +5 more
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Research progress of non-cyanide gold leaching in gold mines
工程科学学报, 2021 With the exhaustion of easy-to-treat gold ore resources, gold ores containing arsenic, carbon, high sulfur, and ultrafine particles have become the focus of gold mining.
Ke-bo PENG +7 more
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Modelling and development of recycled water conditioning of copper-molybdenum ores processing
International Journal of Mining Science and Technology, 2019 Current use of enrichment and processing technologies of ores requires the introduction of closed circuits of water treatment. A decrease in technological properties is caused by accumulations of ion-molecular components in the circulating water.
Irina Pestriak +2 more
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