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Bentonite clay particles and preparation method thereof

A technology of bentonite and bentonite powder, applied in chemical instruments and methods, other chemical processes, alkali metal oxides/hydroxides, etc., can solve the problems of insufficient viscosity, small specific surface area, poor adsorption force, etc.

Inactive Publication Date: 2016-07-06
张兴华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, due to the small specific surface area and insufficient viscosity of bentonite particles, the adsorption force is poor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0033] The preparation method of the bentonite particles of the present invention comprises the following steps: mixing the raw materials; and drying and molding the mixed raw materials.

[0034] The above-mentioned mixing can use mixing equipment known in the art, such as a stirrer, and there is no special limitation on the rotation speed of the stirring, which can be set according to the stirring power of the actual stirring equipment.

[0035] The above-mentioned dry molding means that the mixed raw materials are shaped into granules under the action of drying. A drying machine can be used for drying and forming, and the drying is performed until the moisture content is below 10%. In addition, it can also be vacuum dried.

[0036] After the raw materials are mixed, the mixed raw materials can be extruded into cakes by a cake press machine.

[0037] After the above drying and shaping, crushing is also included, and the particle size of the crushing is 1-4mm, such as 1mm, 1...

Embodiment 1

[0039] First, raw materials are proportioned according to the mass ratio: 100 mesh bentonite powder, and 8% activated carbon powder, 0.02% sodium carbonate, and 0.02% sodium silicate, based on 100% of the mass of bentonite powder.

[0040] Add 10% water to the above-mentioned raw materials with a blender, and extrude them with a cake press machine.

[0041] Enter the dryer through the conveyor, and then the dried bentonite activated carbon granules have a moisture content below 10%, and sieve 1mm granules.

Embodiment 2

[0043] Firstly, the raw materials are proportioned according to the mass ratio: 100 mesh bentonite powder, and 8% activated carbon powder, 0.05% sodium carbonate, and 0.05% sodium silicate, based on 100% of the mass of bentonite powder.

[0044] Add 10% water to the above-mentioned raw materials with a blender, and extrude them with a cake press machine.

[0045] Enter the dryer through the conveyor, and then the dried bentonite activated carbon granules have a moisture content below 10%, and sieve 1mm granules.

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Abstract

The invention discloses bentonite clay particles and a preparation method thereof.The bentonite clay particles are prepared from bentonite powder, activated carbon, carbonate and silicate, wherein the activated carbon accounts for 8-20% of the bentonite powder by mass, the carbonate accounts for 0.02-0.05% of the bentonite powder by mass, and the silicate accounts for 0.02-0.05% of the bentonite powder.The bentonite clay particles include activated carbon; due to addition of the activated carbon, multiple holes can appear in the bentonite clay particles, the specific surface area of the particles is increased, and the good adsorption capacity is achieved.

Description

technical field [0001] The invention relates to the technical field of bentonite, in particular to bentonite particles and a preparation method thereof. Background technique [0002] Bentonite is a non-metallic mineral with montmorillonite as the main mineral component. Bentonite is a kind of clay rock, also known as montmorillonite clay rock, bentonite bentonite, containing a small amount of illite, kaolinite, halloysite, chlorite , zeolite, quartz, feldspar, calcite, etc.; usually white, light yellow, due to changes in iron content, it is light gray, light green, pink, brown red, brick red, gray black, etc.; waxy, earthy or Greasy luster; some bentonite is loose like soil, and some are dense and hard. The main chemical components are silicon dioxide, aluminum oxide and water, and also contain iron, magnesium, calcium, sodium, potassium and other elements. The content of Na2O and CaO has a great influence on the physical and chemical properties and technological performanc...

Claims

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Application Information

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IPC IPC(8): B01J20/20B01J20/28B01J20/30
CPCB01J20/20B01J20/043B01J20/10B01J20/12B01J20/28016
Inventor 张兴华
Owner 张兴华
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