A process for producing H acid by alkali fusion in an ammonia environment
By carrying out alkali melting process in ammonia environment, the problem of "five high" wastewater treatment problems in H acid production and the problem of low H acid yield are solved, and efficient H acid production and cost reduction are achieved.
CN119350196BActive Publication Date: 2025-04-08SHANDONG CHUANGLAN YAOSHI ENVIRONMENTAL PROTECTION TECH CO LTD
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Patent Information
- Application Number
- CN202411907003.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2025-04-08
- Estimated Expiration
- 2044-12-24
AI Technical Summary
Technical Problem
The "five high" organic wastewater produced in H acid production is difficult to effectively treat, and the total yield of H acid is low, resulting in high production costs.
Method used
The alkali melting process is carried out in an ammonia environment. By mixing the amino T acid with the alkali solution and a high dispersant, and adding substances that can produce free ammonia and methanol during the alkali melting process, the reaction conditions are adjusted to improve the yield of H acid.
Benefits of technology
It effectively inhibits the formation of discoloration acid in alkali melting side reactions, improves the yield of H acid, reduces production costs, and realizes the recycling of free ammonia, reducing pollutant emissions.
✦ Generated by Eureka AI based on patent content.
Abstract
The present invention relates to the technical field of H acid preparation, and in particular to a process for producing H acid by alkali fusion under an ammonia environment. Amino T acid generates a chromotropic acid byproduct during alkali fusion, and the chromotropic acid is the amino group of H acid replaced by a hydroxyl group. The hydroxyl group on the naphthalene ring can generate an amino group under the catalysis of sulfite, so the chromotropic acid generates H acid under an ammonia environment. In the present invention, alkali fusion under an ammonia environment can effectively inhibit the generation of chromotropic acid by the side reaction of alkali fusion, and improve the H acid yield. Based on amino T acid, the H acid yield can be increased to about 85%, effectively reducing the cost.
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