Preparation process and application of ferric trichloride
By combining steel pickling waste liquid filtration, fixed-bed biochemical oxidation, and in-situ electrochemical chlorine cycling with stabilizer compounding, the problems of high energy consumption and high cost in the preparation process of ferric chloride have been solved, achieving low-cost, high-purity, green and safe production of ferric chloride.
CN120987371APending Publication Date: 2025-11-21GUANGDONG XINSHENG ENVIRONMENTAL TECHNOLOGY CO LTD
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Patent Information
- Application Number
- CN202511191851.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-25
- Publication Date
- 2025-11-21
AI Technical Summary
Technical Problem
Existing ferric chloride preparation processes are energy-intensive, costly, and dangerous, and produce products with low purity, making it difficult to achieve green and safe production.
Method used
Liquid ferric chloride was prepared by filtering and adjusting the pH of steel pickling waste liquid and reacting it with iron powder, using fixed-bed biochemical oxidation and in-situ electrochemical chlorine circulation, combined with stabilizer compounding.
Benefits of technology
It reduces heat consumption and chemical costs, achieves green and safe production, improves product purity and stability, and meets environmental emission requirements.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention discloses a preparation process and application of ferric trichloride, and relates to the field of inorganic chemistry. In the preparation process of the ferric trichloride, the steel pickling waste liquid is firstly filtered, the pH value is adjusted, then the steel pickling waste liquid reacts with iron powder, then biochemical oxidation is carried out through a fixed bed, in-situ electrochemical chlorine circulation is carried out, and finally concentration, impurity removal and compounding with a stabilizer are carried out, so that the liquid ferric trichloride is prepared. The preparation process of the ferric trichloride has the characteristics of low energy consumption, greenness, high purity and difficulty in devitrification and hydrolysis.
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