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Prepn of graphite interlaminar compound

A graphite interlayer and manufacturing method technology, which is applied in the field of graphite interlayer compound manufacturing, can solve the problems of explosion, unfavorable environment, and difficulty in obtaining homogeneous reactants, etc., and achieve the effect of high interlayer insertion rate

Inactive Publication Date: 2005-04-27
李秋成
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the reaction of these oxidants is extremely sharp, and there is often a danger of explosion. Due to the chlorine element and corrosion problems, it is not suitable for actual production.
Potassium permanganate, potassium dichromate, persulfuric acid, etc. can also obtain a higher insertion rate, but they are all in the form of solid powder, and it is difficult to obtain homogeneous reactants, and there are elements such as manganese and chromium. It's not good to consider

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] 97 grams of fixed carbon, 1 gram of ash, 2 grams of moisture and volatile matter, 100 grams of natural hot flake graphite produced in Madagascar and 800 grams of 98% sulfuric acid sticks to synthesize a uniform mud when the particle size is 42 mesh. While stirring the slurry, 40 g of 25% hydrogen peroxide water kept cold at -2°C was added thereto. After aging for 1 hour, the solid obtained after filtering the reaction treatment solution was washed with water and dehydrated to obtain a graphite intercalation compound.

Embodiment 2

[0014] Mix 95 grams of fixed carbon, 3 grams of ash, 2 grams of water and volatile components, 100 grams of Chinese natural flake graphite with a particle size of 48 mesh and 500 grams of 95% sulfuric acid to form a uniform slurry 40 grams of 23% hydrogen peroxide water kept cold at 3° C. was dropped into the mud to make it react to obtain graphite intercalation compound.

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PUM

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Abstract

The present invention discloses preparation process of interlaminar graphite compound with high interlaminar intervention rate, high safety and environment friendship. The preparation process includes the following steps: dispersing graphite particle in concentrated sulfuric acid to form slurry, reacting the slurry with hydrogen peroxide solution of 20-30 % concentration at temperature lower than 5 deg.c, maturation, filtering the reacted liquid to obtain solid matter, washing and dewatering to obtain the interlaminar graphite compound.

Description

technical field [0001] The invention relates to a method for producing graphite interlayer compounds. Background technique [0002] The carbon atom hexagonal ring network plane of graphite has a multi-layer superimposed structure, and the in-plane is a strong combination of 140 kcal / mol (Kcal / mol), while the interlayer combination is by means of the combination of n electrons, and the binding force is weak. It is 4 kcal / mol (Kcai / mol), and under suitable conditions, reacts with acids, alkali metals, halogens, etc., and forms graphite layer compounds that introduce these reactants between layers. [0003] It is well known that the interlayer compound is rapidly heated to gasify the interlayer reactant, and expand toward the layer with weak binding force by its volume expansion force, so that a light-weight, insect-shaped expanded product can be obtained. The reactants that can form graphite interlayer compounds are concentrated sulfuric acid and nit...

Claims

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Application Information

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IPC IPC(8): C01B31/04
Inventor 李秋成
Owner 李秋成
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