Method for producing organic attapulgite by dry process

An attapulgite and organic technology, applied in the production field of organic attapulgite, can solve the problems of increased production cost, large consumption, and large energy, and achieve the effects of strong environmental protection, low production cost, and scientific process design

Inactive Publication Date: 2008-07-23
赵溶
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this method is a wet modification, and each step of the preparation process needs repeated dehydration, drying, and crushing, which not only consumes a large amount of water, but also consumes a large amount of energy, which increases the production cost.

Method used

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  • Method for producing organic attapulgite by dry process

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Embodiment 2

[0037] Embodiment 2 of the present invention, a kind of dry method of producing organic attapulgite comprises the following steps:

[0038] Mineral processing step: choose colloidal high-viscosity attapulgite as raw material.

[0039] Pulverization step: use grinding equipment to mechanically pulverize the selected attapulgite raw materials, and then screen and purify the attapulgite materials after pulverization.

[0040] The general milling equipment is Raymond mill; the screen accuracy of the screen equipment ranges from 250 mesh to 400 mesh, and 325 mesh is generally selected.

[0041] Kneading organic modification step: adding an organic covering agent solution to the pulverized and purified attapulgite material, and performing kneading organic modification on the pulverized and purified attapulgite material by kneader equipment.

[0042] The organic covering agent at least includes a dodecyl quaternary ammonium salt covering agent and an octadecyl quaternary ammonium sa...

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Abstract

The invention discloses a method for producing organic attapulgite clay by adopting dry process, which includes the following steps: mineral selection: select attapulgite clay as raw material; crushing step: crush the selected raw material and then screen and purify the granules by using a piece of screen mesh equipment; an organic modification step by adopting a kneading method: add an organic covering agent solution and utilizes a piece of kneader equipment to carry out organic modification on the crushed and purified attapulgite clay material; an organic modification step by adopting an extrusion method: adopt a piece of extruder equipment to carry out further organic modification by extrusion; a drying step: dry until the finished product is obtained; the inspection and packing step of the finished product: carry out quality inspection on the finished product and pack the qualified product; the invention adopts a dry process to modify the attapulgite clay material into an organic attapulgite clay material, the process flow design is scientific, thus considerably saving energy and water resources; the production cost is low, the performance and various technical criteria are comparatively high; the production process is environment-friendly which can meet present regulation on environment protection.

Description

technical field [0001] The invention relates to the technical field of producing organic attapulgite, in particular to a dry method for producing organic attapulgite. Background technique [0002] Attapulgite is a hydrated magnesium aluminum silicate mineral with a fibrous or chain structure. In 1862, the Russian scholar Long Kochenkov first discovered this mineral in the hydrothermal alteration products of the Ural mining area. Since the first discovery of attapulgite clay deposits in Xiaopanshan, Liuhe, Jiangsu Province in 1976, large attapulgite deposits were successively discovered in Xuyi, Jiangsu, Mingguang, Anhui and other places in 1982. [0003] The typical chemical formula of attapulgite is Si8Mg5O20(OH(OH2)4·4H2O, and its structure can be divided into 3 layers. The upper and lower layers are silicon-oxygen tetrahedral structures, and the middle layer is M-O-octahedral. These structural units are arranged in a grid The forms are staggered to form a double-chain s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B33/38
Inventor 李沧海赵溶
Owner 赵溶
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