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Bentonite modified by surface active agent and preparation method of bentonite

A technology of surfactants and bentonite, applied in chemical instruments and methods, other chemical processes, fibrous fillers, etc., can solve the problems of poor adsorption performance, achieve good surface activity, and improve the effect of dispersion

Active Publication Date: 2014-10-29
ANHUI PUYUAN SEPARATION MACHINERY MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, as an adsorbent, natural montmorillonite itself also has certain heavy metal ion adsorption performance, but the adsorption performance is poor. Therefore, the modification research of bentonite is an important work.

Method used

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Embodiment Construction

[0013] specific implementation plan

[0014] The present invention will be described in detail below through specific examples.

[0015] A surfactant-modified bentonite, prepared from the following raw materials in parts by weight (kg): bentonite 90, tx-10 1, silicon carbide 2, polyacrylamide 3, mineral oil 3, vinyl carboxylate 4.5 , polyvinyl alcohol 3, konjac gum 2, urotropine 1, modified diatomite 3;

[0016] The modified diatomite is made of the following raw materials in parts by weight (kg): 50 diatomite, 4 charcoal, 3 sodium lignosulfonate, 2 stearic acid, 4 maleic anhydride, methacrylic acid lauryl Ester 4, melamine formaldehyde resin 5, sodium tripolyphosphate 4, water 50; the preparation method is to first add diatomaceous earth, charcoal, lauryl methacrylate, water and stir evenly to form a suspension, then add maleic anhydride, melamine Formaldehyde resin and sodium tripolyphosphate were mixed and stirred for 25-35 minutes, then the remaining ingredients were add...

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Abstract

The invention discloses bentonite modified by a surface active agent. The bentonite is characterized by comprising the following materials in parts by weight: 90-95 parts of bentonite, 1-2 parts of tx-10, 2-3 parts of silicon carbide, 3-5 parts of polyacrylamide, 3-4 parts of mineral oil, 4.5-6 parts of vinyl carboxylic ester, 3-5 parts of polyvinyl alcohol, 2-3 parts of konjac glucomannan, 1-2 parts of urotropin and 3-4 parts of modified kieselguhr. The bentonite disclosed by the invention has the advantages that the surface modification is carried out on the bentonite by adding tx-10, urotropin and the like, so that the bentonite has good surface activity; by addition of the high-molecular polymer, the surface can be compatible to multiple substances; and by addition of the modified kieselguhr, polyacrylamide and the like, the dispersing effect is improved, so that the bentonite can be used as a water purifying agent, an absorbing agent or a washing powder additive.

Description

technical field [0001] The invention relates to the field of industrial fillers, in particular to a surfactant-modified bentonite and a preparation method thereof. Background technique [0002] Bentonite is a clay mineral mainly composed of montmorillonite. It is a type of 2:1 natural layered silicate mineral. Its structural units are Si-O tetrahedrons arranged in two dimensions and Al (or Mg)-O-OH octahedral sheets. In my country, bentonite mineral resources are very rich and widely distributed, and its reserves rank among the top in the world. Due to the presence of Si-OH on the surface of montmorillonite, heavy metal ions can be fixed between the montmorillonite layers through coordination or co-precipitation. Therefore, as an adsorbent, natural montmorillonite itself has a certain adsorption capacity for heavy metal ions, but the adsorption performance is poor. Therefore, the study on the modification of bentonite is an important work. Contents of the invention [0...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/26B01J20/30C09C1/42C09C3/06C09C3/08C09C3/10
Inventor 沈云翔黄帅沈云旌
Owner ANHUI PUYUAN SEPARATION MACHINERY MFG CO LTD
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