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Method for preparing poly-aluminum ferric chloride sulfate and product thereof

A technology for polymerizing bis-aluminum iron and bis-aluminum iron, which is applied in chemical instruments and methods, iron compounds, inorganic chemistry, etc., can solve the problems of high cost, complicated process, and low basicity of products, and achieve low cost, The preparation process is simple and the effect of improving the basicity

Active Publication Date: 2010-07-28
蓝保(厦门)水处理科技有限公司
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Problems solved by technology

[0003] However, the manufacturing method of polymerized aluminum-iron bis-acid in the prior art is usually complicated, resulting in high cost, and the basicity of the product is often relatively low, which cannot meet the actual requirements of modern life and industrial water purification. need

Method used

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  • Method for preparing poly-aluminum ferric chloride sulfate and product thereof
  • Method for preparing poly-aluminum ferric chloride sulfate and product thereof
  • Method for preparing poly-aluminum ferric chloride sulfate and product thereof

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Embodiment Construction

[0016] A kind of manufacture method of polyaluminum iron bis-acid of the present invention, the raw material that adopts and content are as follows:

[0017] 5-10 parts of 98% industrial sulfuric acid; 100-150 parts of industrial hydrochloric acid with a total acidity of 31%; 30-50 parts of iron-containing bauxite powder, which contains 40-45% of % iron oxide by mass fraction; 20-70 parts of calcium aluminate powder, wherein acid-soluble aluminum content is 50%, calcium oxide content is 28-31%; synergist, water glass or sodium aluminosilicate 3-5 parts, formulated 20-40 solution.

[0018] The preparation steps are as follows:

[0019] Step 1: First, add a certain amount of water into the enamel reaction kettle with a stirring device, start stirring, add hydrochloric acid and sulfuric acid in sequence according to the proportion, add iron-containing bauxite powder under normal pressure conditions, and heat up to 90 ~100°C, keep warm and react under normal pressure for 2~4h; ...

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Abstract

The invention relates to a method for preparing poly-aluminum ferric chloride sulfate and a product thereof. The method comprises the following steps: adding water into a reaction kettle with a stirring device, starting stirring, adding hydrochloric acid and sulfuric acid, then adding ferrous hydrargillite powder, heating to 90-100 DEG C, and maintaining the temperature to be subject to the reaction under the normal pressure for 2-4 hours; and filtering the feed solution after the reaction, taking and adding the mother solution to an acidproof steam-heating polyreaction vessel, adding calcium aluminate powder into the mother solution, adding water to regulate the density of the feed solution to be more than or equal to 1.20g / ml, adding synergist, heating, and controlling the temperature to be subject to the reaction for 3-5 hours to obtain the liquid poly-aluminum ferric chloride sulfate. Compared with the prior art, aluminum ions and iron ions are extracted by adopting the ferrous hydrargillite as the raw material, the extracting process adopts the sulfuric acid and hydrochloric acid dissolving mode, and the poly-aluminum ferric chloride sulfate is obtained by carrying out the polyreaction on the calcium aluminate powder. Thus, the invention has the advantages of lower cost of each raw material and more simple preparation process. Besides, since the synergist is added in the polyreaction, the basicity of the product can be improved.

Description

technical field [0001] The invention relates to a preparation method of polymerized aluminum iron bis-acid and its product. Background technique [0002] Polymerized aluminum iron bis-acid is a new type of high-efficiency water purifier, which integrates the advantages of aluminum salt and iron salt-based high-efficiency water purifiers. It has high active ingredient content, high basicity, high degree of polymerization, and dense molecular chain network. , large structure and other advantages, it has stronger adsorption and cohesion ability and better purification effect in the process of water purification. It is an efficient, fast, low consumption, non-toxic and safe inorganic high-efficiency water purifier. [0003] However, the manufacturing method of polymerized aluminum-iron bis-acid in the prior art is usually complicated, resulting in high cost, and the basicity of the product is often relatively low, which cannot meet the actual requirements of modern life and indu...

Claims

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Application Information

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IPC IPC(8): C01G49/00C02F1/52
Inventor 吕奋志吕奋勇王志巍
Owner 蓝保(厦门)水处理科技有限公司
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