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Preparation method of high-purity polyferric chloride

A polymeric ferric chloride, high-purity technology, applied in chemical instruments and methods, ferric halide, water/sewage treatment, etc., can solve the problems of lack of feeding mechanism, affect equipment operation, and reduce the efficiency of stirring, etc., to increase contact The effect of increasing the area, improving the stirring efficiency, and increasing the utilization rate

Inactive Publication Date: 2021-01-26
马鞍山健鼎化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The existing mixing and stirring equipment lacks a feeding mechanism and cannot control the amount of feeding, which leads to a large amount of mixture entering in a short period of time when feeding, which not only reduces the efficiency of mixing, but also may block the feeding port. Affect the operation of the equipment; the existing mixing and stirring equipment does not stir the mixture sufficiently, which affects the subsequent preparation of polyferric chloride; the shock absorbing mechanism of the existing mixing and stirring equipment causes the equipment to easily shake and make noise when it is working. Impact on the physical and mental health of operators

Method used

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  • Preparation method of high-purity polyferric chloride
  • Preparation method of high-purity polyferric chloride
  • Preparation method of high-purity polyferric chloride

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A preparation method of high-purity polyferric chloride, the high-purity polyferric chloride comprises the following raw materials in parts by weight: 100 parts of coal gangue, 50 parts of sulfuric acid, 70 parts of hydrochloric acid, 3 parts of polymerization agent and 3 parts of oxidant;

[0041] The preparation method of this high-purity polyferric chloride comprises the steps:

[0042] S1, pulverization: put the coal gangue into a pulverizer to pulverize, and pass through a 250-mesh sieve to obtain coal gangue powder;

[0043] S2. Roasting: Put the coal gangue powder into a muffle furnace, and roast at a temperature of 700°C for 1 hour;

[0044] S3. Acid leaching: mix the roasted coal gangue powder with sulfuric acid, add hydrochloric acid to carry out acid dissolution reaction at a temperature of 90° C., and the reaction time is 2 hours. After the reaction, filter the reaction solution to obtain a pickling solution;

[0045] S4. Oxidation: Mix the pickling solutio...

Embodiment 2

[0048] A preparation method of high-purity polyferric chloride, the high-purity polyferric chloride comprises the following raw materials in parts by weight: 110 parts of coal gangue, 55 parts of sulfuric acid, 75 parts of hydrochloric acid, 4 parts of polymerization agent and 4 parts of oxidant;

[0049] The preparation method of this high-purity polyferric chloride comprises the steps:

[0050] S1, pulverization: put the coal gangue into a pulverizer to pulverize, and pass through a 250-mesh sieve to obtain coal gangue powder;

[0051] S2. Roasting: put the coal gangue powder into a muffle furnace, and roast at a temperature of 750°C for 1.5 hours;

[0052] S3. Acid leaching: mix the roasted coal gangue powder with sulfuric acid, add hydrochloric acid to carry out acid dissolution reaction at a temperature of 100° C., and the reaction time is 2.5 hours. After the reaction, the reaction solution is filtered to obtain a pickling solution;

[0053] S4. Oxidation: Mix the pickl...

Embodiment 3

[0056] A preparation method of high-purity polyferric chloride, the high-purity polyferric chloride comprises the following raw materials in parts by weight: 120 parts of coal gangue, 60 parts of sulfuric acid, 80 parts of hydrochloric acid, 5 parts of polymerization agent and 5 parts of oxidant;

[0057] The preparation method of this high-purity polyferric chloride comprises the steps:

[0058] S1, pulverization: put the coal gangue into a pulverizer to pulverize, and pass through a 250-mesh sieve to obtain coal gangue powder;

[0059] S2. Roasting: Put the coal gangue powder into a muffle furnace, and roast at a temperature of 800°C for 2 hours;

[0060] S3. Acid leaching: mix the roasted coal gangue powder with sulfuric acid, add hydrochloric acid to carry out acid dissolution reaction at a temperature of 110° C., and the reaction time is 3 hours. After the reaction, the reaction solution is filtered to obtain a pickling solution;

[0061] S4. Oxidation: Mix the pickling ...

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Abstract

The invention discloses a preparation method of high-purity polyferric chloride. The high-purity polyferric chloride comprises the following raw materials: coal gangue, sulfuric acid, hydrochloric acid, a polymerizing agent and an oxidizing agent. The preparation method of the high-purity polyferric chloride comprises the following steps of S1, crushing: crushing coal gangue in a crusher, and sieving with a 250-mesh sieve to obtain coal gangue powder, S2, roasting: putting the coal gangue powder into a muffle furnace, and roasting at the temperature of 700-800 DEG C for the roasting time of 1-2 hours, S3, acid leaching: mixing the roasted coal gangue powder with sulfuric acid, adding hydrochloric acid, carrying out an acid dissolution reaction for 2-3 h at a temperature of 90-110 DEG C, and filtering the reaction liquid after the reaction to obtain a pickling solution, and S4, oxidation: mixing the pickling solution, a polymerizing agent and an oxidizing agent to obtain a mixture, putting the mixture into mixing and stirring equipment, and carrying out mixing and stirring reaction for 50-60 minutes to obtain the high-purity polyferric chloride.

Description

technical field [0001] The invention relates to the technical field of ferric chloride preparation, in particular to a preparation method of high-purity polymerized ferric chloride. Background technique [0002] Polyferric chloride is a new type of high-efficiency inorganic polymer coagulant. This product is made of bauxite, hydrochloric acid or aluminate, calcium aluminate powder with advanced technology. It has good flocculation effect and low price. Its water purification effect is better than that of traditional inorganic salt coagulants such as aluminum sulfate and iron salts. The solid product adopts spray drying technology, and the product is light yellow, yellow or brown powder. [0003] The existing polyferric chloride is often not high enough in purity, and mixing and stirring equipment is often used in the preparation of polyferric chloride. The existing mixing and stirring equipment lacks a feeding mechanism, and the amount of feeding cannot be controlled, result...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G49/10C02F1/52
CPCC01G49/10C02F1/5245
Inventor 沈玉鹏刘飞飞袁桂群任美玲苏义修
Owner 马鞍山健鼎化工有限公司
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