Process for preparing ultra-pure coal by utilizing anthracite physical-chemical method

An anthracite and chemical method technology, applied in the field of ultra-pure coal, can solve the problems of complex equipment and processes of ultra-pure coal, and achieve the effect of convenient and rapid production

Inactive Publication Date: 2018-04-10
LIUPANSHUI NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Currently, complex equipment and processes are required to produce ultra-pure coal
There are few reports on the preparation of ultra-pure coal from coal with high ash content

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0017] A kind of technology that utilizes anthracite physical-chemical method to prepare ultra-pure coal, comprises the following steps:

[0018] (1) Prepare test equipment and medicine

[0019] Instruments: flotation machine, crucible, muffle furnace, magnetic stirrer

[0020] Reagent: kerosene (collector), 2-octanol (foaming agent), NaOH, 5% HCl

[0021] (2) Prepare coal samples

[0022] Anthracite coal samples from Nayong, Zhijin County, Guizhou Province were prepared, and its ash content was measured to be 17.26%.

[0023] (3) Preparation of ultra-pure coal

[0024] Through flotation, the ash content of the raw coal is reduced as much as possible. Weigh several parts of 10g / part of flotation clean coal, put them into several crucibles and mark them well, then add NaOH of different qualities in turn and add appropriate amount of water to stir evenly, then put them into a muffle furnace, and roast them at different temperatures. time, then filter. Weigh 5g / part of the ...

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PUM

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Abstract

The invention discloses a process for preparing ultra-pure coal by utilizing an anthracite physical-chemical method. The process comprises the steps of anthracite grinding, flotation test, NaOH addingfor calcination and HCl adding for acid leaching to obtain ultra-pure coal. According to the process for preparing the ultra-pure coal by utilizing the anthracite physical-chemical method, by physical flotation treatment and alkaline-acid chemical reaction treatment on anthracite with higher ash content, the ash content can be deeply reduced to be lower than 2% and ultra-pure coal can conveniently and quickly be prepared.

Description

technical field [0001] The invention relates to the technical field of ultra-pure coal, in particular to a process for preparing ultra-pure coal by utilizing anthracite physical-chemical method. Background technique [0002] Ultra-pure coal is a new type of high value-added coal product. In recent years, its application research in the preparation of oil-substituting coal-water slurry and high-grade activated carbon, carbon fiber composite materials, graphite and other carbon materials has attracted increasing attention. Currently, complex equipment and processes are required to produce ultra-pure coal. There are few reports on the preparation of ultra-pure coal from coal with high ash content. [0003] Therefore, there is a need for a process for preparing ultra-pure coal using anthracite physical-chemical method. Contents of the invention [0004] The object of the present invention is to provide a process for preparing ultra-pure coal by utilizing anthracite physical-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L9/02C10L9/08
CPCC10L9/02C10L9/083Y02E50/10
Inventor 李帅武文芳雷以柱石开仪
Owner LIUPANSHUI NORMAL UNIV
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