Black talc adsorbent as well as preparation method and application thereof

A technology of black talc and adsorbent, which is applied in the direction of chemical instruments and methods, adsorption water/sewage treatment, and other chemical processes, can solve the problems that the application of all components of black talc is seldom reported, and achieve large talc interlayer spacing, Simple process flow and high adsorption performance

Pending Publication Date: 2021-12-03
苏州中材非金属矿工业设计研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] It can be seen that the current utilization of black talc is to remove the organic matter by high-temperature calcination first, and then turn it white before it can be used. There are few reports on the application of all components of black talc.

Method used

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  • Black talc adsorbent as well as preparation method and application thereof
  • Black talc adsorbent as well as preparation method and application thereof
  • Black talc adsorbent as well as preparation method and application thereof

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preparation example Construction

[0035] The preparation method of black talc adsorbent of the present invention, comprises the steps:

[0036] 1) Homogenization: crush the raw ore of black talc to obtain ultrafine and uniform powder raw materials;

[0037] 2) carbonization: calcining the powder raw material obtained in step 1) under the protection of nitrogen to obtain a carbonized material;

[0038] 3) Activation: the carbonized material obtained in step 2) is calcined and activated under steam to obtain a black talc adsorbent. The structural representation of the prepared black talc adsorbent is as follows figure 1 As shown, it includes talc flakes 2 distributed in layers, and porous carbon 1 distributed between the talc flakes 2 .

[0039] Such as figure 2 Shown, the black talc raw ore that the present invention adopts is in sheet shape.

[0040] The scanning electron microscope of the black talc adsorbent that the present invention makes is as image 3 As shown, it can be seen that the interlamellar ...

Embodiment 1

[0042] The preparation method of the black talc adsorbent of the present embodiment may further comprise the steps:

[0043] 1) Homogenization: the black talc raw ore is air-pulverized to obtain a uniform powder raw material with a fineness of less than 2 μm;

[0044] 2) Carbonization: calcining the powder raw material obtained in step 1) at 600° C. for 3 hours under nitrogen to obtain a carbonized material;

[0045] 3) Activation: Activate the carbonized material obtained in step 2) by microwave calcination at 1000° C. for 60 min under steam to obtain a black talc adsorbent.

Embodiment 2

[0047] The preparation method of the black talc adsorbent of the present embodiment may further comprise the steps:

[0048] 1) Homogenization: the black talc raw ore is air-pulverized to obtain a uniform powder raw material with a fineness of less than 2 μm;

[0049] 2) Carbonization: calcining the powder raw material obtained in step 1) at 800° C. for 1 hour under nitrogen to obtain a carbonized material;

[0050] 3) Activation: Activate the carbonized material obtained in step 2) by microwave calcination at 1000° C. for 60 min under steam to obtain a black talc adsorbent.

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Abstract

The invention provides a black talc adsorbent as well as a preparation method and application thereof. The preparation method of the black talc adsorbent comprises the following steps: 1) homogenization: crushing black talc raw ore to obtain an ultrafine and uniform powder raw material; 2) carbonization: calcining the powder raw material obtained in the step 1) under the protection of nitrogen to obtain a carbonized material; 3) activation: calcining and activating the carbonized material obtained in the step 2) under steam to obtain the black talc adsorbent. The black talc prepared through the preparation method serves as an adsorbent and has the high specific surface area and activity and good adsorption performance; meanwhile, the preparation method is simple in technological process and low in production cost, full-component utilization of the black talc is achieved, and the product adsorption performance is high.

Description

technical field [0001] The invention belongs to the technical field of inorganic non-metallic materials, and relates to a processing method of black talc, in particular to a black talc adsorbent and its preparation method and application. Background technique [0002] Black talc is a general term for black and gray-black talc. It is black because it contains organic matter inside, and the organic matter content is about 2-5%. Due to the low whiteness of black talc, it is difficult to be widely used, and it can only be used in industries such as ceramics and rubber. Therefore, in order to expand the application field of black talc, the current processing method is basically to take appropriate measures to improve the whiteness of black talc, and the main method is calcination. The whiteness of calcined black talc can reach more than 90%, and it has good insulation, heat resistance, adsorption, lubrication and other properties, and can be widely used in coatings, plastics, ru...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/20B01J20/28B01J20/30C02F1/28C02F101/10
CPCB01J20/20B01J20/28057C02F1/283C02F2101/105
Inventor 贺洋代小元陈慧杰于阳辉安卫东
Owner 苏州中材非金属矿工业设计研究院有限公司
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