Technology for processing of the gold-arsenic concentrates

Short description:

Preliminary method of the resistant and extremely resistant gold-arsenic concentrates preparation is developed, it allows to obtain the product suitable for further processing both the conventional hydrochemical methods of the gold extracting and at the pyrometallurgical treatment as a fluxing agent in the content of carbon and silicate components in the production of copper or lead.

The main advantages of this technology include:

• deep break-down of material with rundown of arsenic in the 96-98% as sulfides;
• full utilization of sulfur dioxide;
• availability of low-velocity gas stream and as a consequence of the absence of dust, which prevents the loss of gold;
• simplicity of instrumentation and significant energy savings through the use of exothermic reactions of burning of sulfides in the bottom of the shaft furnace.

Flow diagram of the gold-arsenic concentrates processing

Level of readiness:

Process procedures are available at the instrumentation and roasting operations.

Process procedures are available at the instrumentation and roasting operations. Technology of the oxidating-sulphide burning implemented at the «Yakutzoloto» association, enterprises of China and tested in experimental-industrial level at the Bakyrchik GMK.

1 – granulating machine; 2 – furnace for burning liquid fuel; 3 - dry-off oven; 4 – dust chamber; 5 – ventilator; 6 - roaster furnace; 7 – condensator; 8 – trough-type unloader, 9 – oven to melt the arsenic sulfide.

Technology of extracting of arsenic by oxidating-sulphide roasting from arsenic-pyritic raw materials

Availability of patents:

Technology protected by patents of RK.

Partners:

LLC «Kazakhmys» Corporation»;

«Kazzinc» Company.

Contacts:

SSE « Zh. Abishev ChMI» RSE «NC CPMRM RK»

Karaganda, 63, Ermekov str.

Tel.: (7212) 43-31-64

Fax: (7212) 43-31-61

E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it