Method for preparing polymeric aluminum ferric sulfate by using aluminium ore washing gangue

A technology for polymerizing ferric aluminum sulfate and aluminum sulfate, which is applied in the fields of ferric sulfate, flocculation/precipitation water/sewage treatment, etc. It can solve the problems of low degree of polymerization, low product yield, and source limitation, and achieve reduced production costs and efficient circulation Economical and good product quality
CN101973586AInactive Publication Date: 2011-02-16广西天工冶金科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
广西天工冶金科技有限公司
Publication Date
2011-02-16
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a method for preparing polymeric aluminum ferric sulfate by using aluminium ore washing gangue, which is characterized in that washing gangue or / and brasses of a karst accumulated aluminium ore or other aluminium ores is or are used for preparing high-iron pyritic residue iron powder which reacts with sulfuric acid to generate aluminum sulfate and ferric sulfate water solutions, and then an alkalizer is added for polymerizing to produce the polymeric aluminum ferric sulfate. Meanwhile, the gangue has thinnest granularity, wherein the content of fine silt with the granularity of -10 micrometers accounts for 80 percent, and the fine silt is the optimal raw material for producing the polymeric aluminum ferric sulfate, and has the advantages of high reaction ratio and good product quality. The invention has the advantages of being capable of reasonably and effectively utilizing aluminium ore resources, effectively controlling the aluminium ore washing gangue from a pollution source, protecting the environment, realizing the harmony of human beings and the environment, lowering the production cost of the polymeric aluminum ferric sulfate and realizing high-efficiency recycling economy.
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Description

technical field

[0001] The invention belongs to the technical field of tailings treatment and water treatment chemicals, and relates to a method for preparing polyaluminium-ferric sulfate by washing tailings with aluminum ore. Background technique

[0002] At present, my country is rich in aluminum ore resources. While obtaining high-quality metal aluminum, a large amount of waste slag and waste mud are produced, especially the tailings are difficult to settle naturally in a natural state, and it is extremely difficult to stockpile. As far as Pingguo Aluminum, one of the main aluminum production bases in my country, produces about 2 million tons of tailings every year, the Baise area where Pingguo Aluminum is located is dominated by karst landforms, and various karst structures are available in the mining area. Gully melting tanks are criss-crossed, and the discharged slime forms a slime reservoir, which has a great impact on the surrounding environment and has great potentia...

Claims

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