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Fluorine removal agent and preparation method thereof

A fluorine removal agent and flocculant technology, applied in chemical instruments and methods, water pollutants, water/sewage treatment, etc., can solve problems such as long settling time, equipment corrosion, flocculant failure, etc. The effect of low corrosion and stability is not easy to fail

Pending Publication Date: 2021-05-14
西安吉利电子新材料股份有限公司
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Problems solved by technology

[0003] The purpose of the present invention is to provide a defluorinating agent and its preparation method to solve the problems of easy failure of flocculant, long settling time, and easy corrosion of equipment in the existing method of using flocculant to treat fluorine-containing wastewater

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  • Fluorine removal agent and preparation method thereof
  • Fluorine removal agent and preparation method thereof
  • Fluorine removal agent and preparation method thereof

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Embodiment Construction

[0015] The following specific embodiments will describe the present invention in detail.

[0016] The invention provides a fluoride removal agent, which is prepared from raw materials with the following mass content:

[0017]

[0018]

[0019] The total content of the above raw materials is 100%.

[0020] Among them, industrial hydrochloric acid is selected with a concentration of 36%; citric acid is selected for industrial citric acid with a concentration of 98%; flocculant JL-370 is selected, which is a composite solution of phosphoric acid, PAC, solid aluminum sulfate, and pure water; polyaluminum chloride CZ is selected -310S is a compound solution of PAC, hydrochloric acid and pure water.

[0021] The flocculant JL-370 is prepared from the following raw materials in mass percentage: aluminum sulfate 30-45%, polyaluminum chloride 5-10%, phosphoric acid 5-10%, the balance is water, and the total mass content is 100%. The preparation method of flocculant JL-370: Weig...

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Abstract

The invention discloses a fluorine removal agent and a preparation method thereof. The fluorine removal agent is prepared from the following raw materials in percentage by mass: the total content of the raw materials is 100%. The invention solves the problems that: in existing fluorine removal methods adopting a flocculating agent, the flocculating agent is prone to failure, the settling time is long, and equipment is prone to corrosion.

Description

technical field [0001] The invention belongs to the technical field of water treatment, and in particular relates to a defluoridation agent and a preparation method thereof. Background technique [0002] There are many treatment methods for fluorine-containing wastewater, such as adsorption method, freezing method, ion exchange resin defluorination method, activated carbon defluorination method, ultrafiltration method, and electrodialysis method. Due to high cost and low fluoride removal rate, they are rarely popularized and applied. . At present, the most practical treatment measures are some treatment measures based on chemical precipitation method and coagulation precipitation method. The currently used flocculant is placed for a short time after configuration, and it is prone to adhesive coagulation and failure; and when it is used, it takes a long time to settle. In order to ensure the production, a larger pool needs to be set up, which takes up space and has poor trea...

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Application Information

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IPC IPC(8): C02F1/52C02F101/14
CPCC02F1/5245C02F2101/14
Inventor 鲍鑫张凯
Owner 西安吉利电子新材料股份有限公司
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