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Multi-component copolymerization ferric chloride hexahydrate water purification agent

A technology for multi-component copolymerization of ferric chloride hexahydrate and copolymerization of ferric chloride hexahydrate, which is applied in the direction of flocculation/sedimentation water/sewage treatment, etc., and can solve the problem of high production cost

Inactive Publication Date: 2016-01-20
重庆市昂多环境治理有限责任公司
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AI Technical Summary

Problems solved by technology

However, the production cost of this water purifier is relatively high, and the purification effect needs to be further improved.

Method used

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Embodiment Construction

[0012] As an example of a specific embodiment of the present invention, a group of components and a specific preparation method are given below.

[0013] The weight ratio of the components of micro-polymerized iron nitride is: 25-30% iron concentrate powder containing more than 90% ferric iron, 7-15% industrial water, 1-10% sodium hydroxide, 2- 8% sodium fluoride, 5-8% sodium chlorate, 50-60% hydrochloric acid.

[0014] The component weight ratio of polymerized starch is: 50-60% industrial water, 20-40% sodium hydroxide, 3-10% corn flour, 0.5-2% sodium dihydrogen phosphate, 5-10% urea, 0.2 -1% aluminum hydroxide.

[0015] The specific embodiment of preparation method is:

[0016] 1) Add iron powder containing more than 90% ferric iron and 7-15% water with a weight ratio of 25-35% into a reactor, stir well and then add 2-8% sodium fluoride, 5-8% sodium chlorate, 2-10% sodium hydroxide, stir while heating, control the heating temperature at 25-65°C, stir for 20-30 minutes, th...

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Abstract

The present invention provides a multi-component copolymerization ferric chloride hexahydrate water purification agent and a preparation method thereof. The multi-component copolymerization ferric chloride hexahydrate water purification agent comprises trace polymerization ferric chloride hexahydrate and polymerization starch according to a weight ratio of 1:1, wherein 25-40% by weight of iron powder containing more than or equal to 90% of ferric, 7-20% by weight of water, 1-18% by weight of sodium hydroxide, 50-70% by weight of hydrochloric acid, 5-8% by weight of sodium chlorate, and 2-20% by weight of sodium fluoride are prepared into the trace polymerization ferric chloride hexahydrate, and 20-76% by weight of water, 20-40% by weight of sodium hydroxide, 3-10% by weight of plant starch, 0.3-10% by weight of sodium dihydrogen phosphate or disodium hydrogen phosphate, 4-40% by weight of urea, and 0.1-1% by weight of aluminum hydroxide are prepared into the polymerization starch. The preparation method comprises: respectively and sequentially adding the components to two reactors according to the weight ratios, stirring at a controlled temperature, adding the two obtained mixtures after form the intermediates, carrying out a copolymerization reaction, and filtering to obtain the finished product. According to the present invention, the water purification agent has characteristics of low production cost, low reaction cycle, and good water purification effect.

Description

technical field [0001] The invention belongs to the field of chemical preparations, in particular to a multi-component copolymerized ferric trichloride hexahydrate water purifier and a preparation method thereof. Background technique [0002] Water purifiers are widely used in various water purification treatment fields. In the early days, people used ferric chloride hexahydrate prepared by oxidation method of ferric chloride hexahydrate, iron ore powder plus hydrochloric acid acid dissolution method as water purifying agent. Due to the long preparation cycle of this water purifying agent, the water purification effect is not good. So people turned to compound ferric chloride hexahydrate and aluminum salt to form polymerized ferric chloride aluminum hexahydrate water purifier. But the production cost of this water purifying agent is higher, and the purification effect also needs to be further improved. Contents of the invention [0003] The purpose of the present invent...

Claims

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Application Information

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IPC IPC(8): C02F1/52
Inventor 张芳
Owner 重庆市昂多环境治理有限责任公司
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