Method for preparing high-purity molybdenum disulfide from molybdenum concentrate through one-step decontamination

• Main Authors: SHI CHUANXING, ZHANG QIANHUA, LI YANAN, CHEN TIANTIAN, MA HONGYI, ZHANG YUANCHUN, GUO GE, DING WEIGONG, ZHAO YILI, ZHOU TAO, WANG QIANQIAN, LIU XIUWEI, LUO YINGDI, HUANG WENRUI, CHENG XINHE, CHENG LANXING, WANG BAINAN, ZHAO ZENGBING, ZHANG BIBO
• Format: Patent
• Language: Chinese; English
• Published: 28.12.2018
• Subjects: CHEMISTRY; COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F; INORGANIC CHEMISTRY; METALLURGY

The invention discloses a method for preparing high-purity molybdenum disulfide from molybdenum concentrate through one-step decontamination. The method is characterized by comprising the following steps: putting aids into hydrochloric acid, dissolving to form a uniform solution, adding molybdenum concentrate, uniformly stirring, carrying out a reaction for 1-12 hours at 40-95 DEG C, after the reaction is completed, carrying out vacuum suction filtration, washing with deionized water, drying, and crushing, thereby obtaining a molybdenum disulfide product of which the iron content is smaller than 0.1%, the silica content is smaller than 0.05% and the purity is greater than 99.5%. The method has the beneficial effects that through one-step acid leaching, the high-purity molybdenum disulfideproduct can be prepared, and product quality and grades can be improved; the method is simple in step and convenient to operate, the reaction time can be shortened, acid leaching times can be reduced,and acid leaching loss ca