Kunming University of Science and Technology

Kunming Diboo Technology Co., Ltd.

Kunming Dingbang Technology Co., Ltd.

Weiping Dai

Bin Yang

Wenlong Jiang

Baoqiang Xu

Fei Wang

Hao Chen

Yang Tian

Lingxin Kong

Xiumin Chen

Wei Chen

Bin Su

Yong Deng

Yifu Li

Qingchun Yu

Long Han

Hui Xie

Kun Yang

Hongwei Yang

Guozheng Zha

Shouyun Yang

Chunyang Zheng

Dan Shao

Heng Xiong

Dachun Liu

Jia Yang

Tao Qu

A method for comprehensively processing noble lead provided and utilizes two instances of vacuum distillation to realize an open circuit of arsenic, lead, antimony and bismuth and the high-efficiency enrichment of precious metals of gold and silver, and can obtain elemental arsenic, a lead-bismuth-antimony alloy, a silver alloy and a copper alloy, respectively. The lead-bismuth-antimony alloy, the silver alloy and the copper alloy are processed by oxidation refining, electrorefining and chlorination refining to obtain refined lead, refined antimony, antimony trioxide, electrolytic silver and electrolytic copper, and to realize gold enrichment. The entire process has advantages of high metal direct yield, low energy consumption, short flow chart, simple equipment, etc., and vacuum distillation belongs to a physical process in which the alloy can be separated only by means of the difference in saturated vapor pressure between the metals, without generation of wastewater, waste gas and waste residue.

Method for comprehensively processing noble lead

A method for producing stannous sulfide, the method including: 1) heating a tin-containing material to 200-600&#xb0; C., and mixing sulfur with the tin-containing material heated, to yield a product; and 2) distilling the product in a vacuum furnace at a pressure of 1-500 pascal.

Method for producing stannous sulfide

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Kunming, China

Weiping Dai