Anion adsorbent and preparation method thereof

An anion and adsorbent technology, which is applied in the field of anion adsorbents in industrial sewage, can solve the problems of low adsorption efficiency, and achieve the effect of simple preparation scheme, good adsorption performance, and easy industrialization
CN110743510AActive Publication Date: 2020-02-04ZHEJIANG RENHENG CHEM
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ZHEJIANG RENHENG CHEM
Publication Date
2020-02-04

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Abstract

The invention discloses an anion adsorbent and a preparation method thereof, and belongs to the technical field of environmental protection technologies and chemical engineering. Na-montmorillonite and polydiallyldimethylammonium chloride (PDDA) are adopted as raw materials, and a finished product is prepared through high-speed dispersive stripping, intercalation modification and drying for powderpreparation. The PDDA in the obtained finished product and the stripped montmorillonite are subjected to an intercalation reaction to form a nanocomposite material of a montmorillonite slice layer and a polymer, and the nanocomposite material of the montmorillonite slice layer and the polymer has the good anion waste adsorption ability; and a preparation scheme of the anion adsorbent is simple and easy to implement, industrialization is easy, and the adopted materials can be circularly applied through acid pickling.
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Description

technical field

[0001] The invention belongs to the technical field of chemical industry or environmental protection, and relates to a water treatment agent and its application. More specifically, the invention is an adsorbent for anions (nitric acid, chromic acid, perchlorate anions) in industrial sewage. Background technique

[0002] In water treatment, adsorption is a physical and chemical method. It is an urgent need for the development of the environmental protection industry to develop low-cost, good selectivity, and easy-to-regenerate water treatment adsorbents. In recent years, research on modified montmorillonite adsorbents for water treatment has become one of the hot areas of wastewater treatment. my country is rich in natural bentonite resources, the proven reserves are second only to the United States, ranking second in the world, and the current annual mining volume is 2 million tons. The development of bentonite and modified bentonite water treatment agent h...

Claims

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