Comprehensive recovery method of gravity separation tailings of tin oxide ore

A technology for gravity separation of tailings and recovery methods, applied in chemical instruments and methods, improvement of process efficiency, solid separation, etc., can solve problems such as serious pollution, low content, and neglect, and achieve pollution control and low cost of auxiliary materials Effect
CN104294032AActive Publication Date: 2015-01-21云南锐洁鑫再生资源综合利用有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
云南锐洁鑫再生资源综合利用有限公司
Publication Date
2015-01-21

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Abstract

The invention relates to a comprehensive recovery method of gravity separation tailings of tin oxide. The comprehensive recovery method comprises the following steps: grinding tailings in a wet type, filtering, performing kiln type drying, mixing ferric chloride, magnesium chloride, calcium chloride, ammonium chloride and coking coal ash with the tailings by virtue of a cylinder, curing and performing high-temperature chlorination and reducing roasting in a kiln to produce magnetic iron ore powder and smoke, performing wet type magnetic separation for recovering iron ore powder containing 60% of iron and silicate tailings, performing water-cooling and absorption and separation on volatilized smoke to recover metal semi-finished product materials rich in tin, copper, silver, molybdenum, indium and the like, evaporating and concentrating circulating liquid to obtain calcium chloride, mixing and recovering. The grade of the iron ore concentrate is 62.08-64.3%, the recovery rate of ferrous and precious metals is 86.5%-96.6%, and the comprehensive recovery method has obvious practical significance.
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Description

Technical field

[0001] The invention belongs to the recycling method of mining waste residue, especially the comprehensive recycling method involving iron -containing solid waste residues. Background technique

[0002] Tin oxidation ore reconstruction tailings are tailings generated by tin oxidation raw ore after re -election. The physical and chemical status of tailings is the same as the raw ore.The price of colored and rare metals is between 2.5 and 3%, and about 45%~ 48%of iron containing iron, and the content is low. As a result, it is not valued as one of the iron solid scum.There are more than 100 million tons of historical stacking in the old regions of Yunnan Province. The hidden safety hazards in the tailings dam are large, and the pollution is extremely serious.Before proposing the present invention, the inventor proposed two invention patents: comprehensive recycling method (CN1718750A) and the winding furnace refining lead tail residue comprehensive recycling method ...

Claims

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