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Lignin modified attapulgite clay adsorbent and preparation method thereof

A technology of attapulgite and lignin, which is applied in chemical instruments and methods, adsorption water/sewage treatment, and other chemical processes, and can solve problems such as difficult sedimentation and secondary pollution, and achieve easy settlement, inhibition of agglomeration, and simple process Effect

Inactive Publication Date: 2017-05-17
严帝
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Because attapulgite has a large specific surface area, it has a strong adsorption effect, and can form a high-viscosity suspension at a relatively low concentration. Its rheological properties determine that it can be used as colloidal mud, suspending agent, Thixotropic agent and binder, but attapulgite powder is not easy to precipitate in water, and it is easy to cause secondary pollution

Method used

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Examples

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Embodiment Construction

[0014] The lignin-modified attapulgite adsorbent of this embodiment is prepared from the following raw materials in parts by weight: 100 parts of attapulgite raw soil, 800 parts of sodium chloride solution, 15 parts of nano-calcium carbonate, and 20 parts of lignin acetate. 20 parts of propyne bromide, 800 parts of sodium hydroxide solution, 600 parts of tetrahydrofuran, 8 parts of 3-mercapto-1,2,4-triazole, 2,2-dimethoxy-2-phenylacetophenone 10 parts, 80 parts of methyl methacrylate, 30 parts of phenyltrimethoxysilane, 4 parts of azobisisobutyronitrile, 10 parts of 3-mercaptopropionic acid, 600 parts of acetone, 800 parts of methanol, appropriate amount of hydrochloric acid, anhydrous Appropriate amount of ethanol, appropriate amount of deionized water.

[0015] The lignin-modified attapulgite adsorbent of this embodiment is prepared by the following steps:

[0016] (1) Sieve the original attapulgite soil through a 200-mesh sieve, wash it with deionized water for 5 times to ...

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Abstract

The invention discloses a lignin modified attapulgite clay adsorbent, which is characterized by being prepared from the following raw materials: attapulgite raw clay, a sodium chloride solution, nano calcium carbonate, acetic acid lignin, propargyl bromide, a sodium hydroxide solution, tetrahydrofuran, 3-mercapto-1,2,4-triazole, 2,2-dimethoxy-2-phenylacetophenone, methyl methacrylate, phenyltrimethoxysilane, azodiisobutyronitrile, 3-mercaptopropionic acid, acetone, methanol, an appropriate amount of hydrochloric acid, an appropriate amount of absolute ethyl alcohol and an appropriate amount of deionized water. The preparation method is simple in process; the secondary pollution is not generated; the prepared attapulgite clay adsorbent has the characteristics of being large in particle size, easy to subside, easy to recover and favorable in adsorbability, and is applicable to the treatment of industrial wastewater.

Description

technical field [0001] The invention belongs to the technical field of adsorbents, in particular to a lignin-modified attapulgite adsorbent and a preparation method thereof. Background technique [0002] The pollution of water and soil caused by industrial wastewater has caused great safety hazards to the human body, animals and plants. How to effectively eliminate the hazards of heavy metals is a prominent problem facing environmental protection work today. In recent years, adsorbent materials have been widely used in the treatment of heavy metal ion pollution due to their advantages such as high adsorption efficiency, easy regeneration, and exothermic reaction during the adsorption process. [0003] As a natural material, attapulgite has the advantages of cheap raw materials, abundant resources and large specific surface area. Attapulgite has a special fiber structure and crystal structure, which makes it have many special physical, chemical and technological properties. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/24B01J20/30C02F1/28C02F101/20
CPCB01J20/24C02F1/288C02F2101/20
Inventor 严帝
Owner 严帝
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