Mineral Processing

Gold ore flotation

Mineral Introduction1. Introduction of gold ore: At present, 98 kinds of gold minerals and gold-bearing minerals have been found, but there are only 40 kinds of common ones, and only 20 kinds of industrial minerals among them. Main minerals: natural gold, gold ore, gold amalgam. The occurrence of gold can be divided into gold minerals, gold-bearing minerals and gold-carrying minerals. Specifically divided into: (1) natural elements, natural alloys and intermetallic compounds; (2) sulfides (3) selenides (4) tellurides (5) tellurides, etc.. In nature, gold is often symbiotic with silver, and is closely related to minerals such as pyrite, galena, arsenopyrite, sphalerite, chalcopyrite, beryllium ore, molybdenite, etc. .

Common Mineral Processing MethodsCommon processing method: Flotation, gravity separation, leaching

Quotation Inquiry

Mineral Type

Deposit type: A. Early Cambrian gold-uranium conglomerate type. B. Containing gold - quartz vein type. C. In the mylonite zone, the alteration is altered. D. The gold-silver vein type in the volcanic mechanism of the Mesozoic and Cenozoic. E. Fine grain infiltration of gold ore type. F. Iron-gold construction type. G. Gold-arsenic construction type. H. Containing gold massive sulfide type. I. Gold deposit type.

General industrial indicators

  1. Industrial indexes
  1. Rock gold ore
  1. Ore
Cutoff grade(g/t)  
The lowest industrial grade(g/t)
The average grade(g/t)
Primary deposit 1-2 2.5-4.5 4.5-5.5
Heap leaching oxidized ore 0.5-1 1-1.5  
Gold placer
Position Cutoff grade of mixed sand (g/m3)
The lowest industrial grade of mixed sand (g/m3)
South China 0.05-0.07 0.16-0.18
North China 0.06-0.08 0.18-0.2
Gold flotation concentrate quality requirements: first-class ore ≧100g/t; ninth-class ore ≧20g/t.

Beneficiation process legend