Production technology of high-efficiency high-concentration polymeric ferric sulfate

A technology of polymerized ferric sulfate and production process, which is applied in ferric sulfate, water/sewage treatment, flocculation/sedimentation water/sewage treatment, etc. It can solve the problems of high active ingredients and lack of promotion in the liquid market, and achieve product quality indicators Improve and promote the effect of synergistic polymerization, concentration and purification, and simple technical process

Inactive Publication Date: 2017-04-26
蓝保(厦门)水处理科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the active ingredients of polyferric sulfate solid products are still higher than those of liquid products, the water treatment effect of solid products and liquid products is about 1:1.7
Long-distance transportation of solid products is more cost-effective, and the liquid market is still not effectively promoted

Method used

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  • Production technology of high-efficiency high-concentration polymeric ferric sulfate
  • Production technology of high-efficiency high-concentration polymeric ferric sulfate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Step 1: Add an appropriate amount of water into the enamel reaction kettle with a stirring device, start stirring, and slowly add 98 parts of industrial waste sulfuric acid to the water according to the ratio under normal pressure, and stir until the dilution is uniform. Adjust the ratio of industrial waste sulfuric acid to 40-45% waste sulfuric acid dilution; sampling test;

[0034] Step 2: Under stirring, add the waste sulfuric acid dilution solution obtained in Step 1 into the acid-resistant polymerization reaction vessel heated by steam, start stirring, and slowly add 35 parts of iron oxide red to it according to the proportion. After the addition is completed, control The temperature of the reaction system is 105-120°C, and the reaction is kept under normal pressure for 3 hours; the density of the feed liquid is adjusted to 1.48g / ml with water, and then 4 parts of synergist trisodium phosphate are added, and the temperature of the reaction system is controlled at 10...

Embodiment 2

[0039] Step 1: Add an appropriate amount of water into the enamel reaction kettle with a stirring device, start stirring, and slowly add 105 parts of industrial waste sulfuric acid to the water according to the ratio under normal pressure, and stir until the dilution is uniform. Adjust the ratio of industrial waste sulfuric acid to 40-45% waste sulfuric acid dilution; sampling test;

[0040] Step 2: Under stirring, add the waste sulfuric acid dilution obtained in Step 1 into the acid-resistant polymerization reaction vessel heated by steam, start stirring, and slowly add 45 parts of iron oxide red to it according to the proportion. After the addition is completed, control The temperature of the reaction system is 105-120°C, and the reaction is kept under normal pressure for 3 hours; the density of the material liquid is adjusted to 1.49g / ml with water, and then 5 parts of synergist trisodium phosphate are added, and the temperature of the reaction system is controlled at 100-11...

Embodiment 3

[0045] Step 1: Add an appropriate amount of water into the enamel reaction kettle with a stirring device, start stirring, and slowly add 90 parts of industrial waste sulfuric acid into the water according to the ratio under normal pressure, and stir until the dilution is uniform. Adjust the ratio of industrial waste sulfuric acid to 40-45% waste sulfuric acid dilution; sampling test;

[0046] Step 2: Under stirring, add the waste sulfuric acid dilution obtained in Step 1 into the acid-resistant polymerization reaction vessel heated by steam, start stirring, and slowly add 30 parts of iron oxide red to it according to the proportion. After the addition is completed, control The temperature of the reaction system is 105-120°C, and the reaction is kept under normal pressure for 3 hours; the density of the feed liquid is adjusted to 1.46g / ml with water, and then 3 parts of synergist trisodium phosphate are added, and the temperature of the reaction system is controlled at 100-115°C...

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Abstract

The invention discloses a production technology of high-efficiency high-concentration polymeric ferric sulfate. Under the condition that a catalytic oxidation process is omitted and massive processing equipment does not need to be increased, a rolled steel pickling byproduct namely iron oxide red reacts with industrial waste sulphuric acid, and through a negative pressure synergy concentration technology, high-efficiency high-concentration liquid polymeric ferric sulfate is prepared, so that the purposes of resource utilization is achieved, and solid products are replaced. A preparation method of the high-efficiency high-concentration polymeric ferric sulfate is simple, practical and easy to operate; and ratio of the water purifying effect of the prepared high-efficiency high-concentration liquid polymeric ferric sulfate to the water purifying effect of the solid products is close to 1 to 1, the equipment investment is low, and the production technology is suitable for industrialized production. The byproduct namely the iron oxide red and the industrial waste sulphuric acid are used, so that other problems caused in a catalytic oxidation process can be solved, and the production cost is greatly reduced. According to the production technology disclosed by the invention, waste is turned into wealth, and one kind of waste is used for governing other kinds of waste, so that environmental-friendly ideas of saving energy, reducing emission, and recycling economy can be achieved.

Description

technical field [0001] The invention belongs to the technical field of polyferric sulfate production, and in particular relates to a production process of high-efficiency and high-concentration polyferric sulfate. Background technique [0002] Polymerized ferric sulfate is a new type, high-quality, high-efficiency iron salt inorganic polymer flocculant, with huge molecular structure, strong adsorption capacity, and better water purification effect than all traditional inorganic water purifiers. Polymerized ferric sulfate has good coagulation performance, stable chemical properties, and fast sedimentation speed. It is applicable to a wide range of pH values ​​and is widely used in the purification of drinking water, various industrial water, industrial wastewater, and urban sewage. [0003] At present, polyferric sulfate is mainly in two forms: liquid (total iron ≥ 11%) and solid (total iron ≥ 19%). Solid products are based on liquid products, and the liquid products are con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G49/14C02F1/52
CPCC01G49/14C01P2006/80C02F1/5236
Inventor 陈嘉宾吕奋勇王志巍吕奋志
Owner 蓝保(厦门)水处理科技有限公司
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