23-06-2023 дата публикации
Номер: CN116287774A
Принадлежит:
The invention discloses a biological extraction method of clay type lithium ores, which comprises the following steps: 1) inoculating microorganisms into a biological culture medium, and directionally regulating and controlling microbial metabolism to obtain a fermentation stock solution rich in microbial metabolites; 2) centrifugally separating the fermentation stock solution, taking supernate as a metabolite stock solution, adding alkali to adjust the pH value, evaporating water, concentrating, crystallizing, filtering and drying to obtain a solid microbial metabolite; and (3) the clay type lithium ore is subjected to ore grinding, the microbial metabolite is added in the ore grinding process, a to-be-leached raw material is obtained after ore grinding, leaching parameters are adjusted for leaching, and a lithium-containing leaching solution is obtained. According to the method, the low-grade clay type lithium ore is directly treated under the conditions of normal temperature and normal ...
Подробнее