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Automatic high-yield purification method for preparing spherical graphite

A spherical graphite, high-yield technology, applied in chemical instruments and methods, inorganic chemistry, carbon compounds, etc., can solve the problems of many types and quantities of reagents added, many heating times, and complex processes, and achieves few types and quantities. Simple process , the effect of large output

Inactive Publication Date: 2021-07-23
大同氢都驰拓新能源有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the purification of spherical graphite in the industry generally adopts 1000 ml steel-lined PTFE reactor or 3000 ml PP reactor, with a maximum feeding capacity of 0.6-3.0 tons, many types and quantities of reagents, complicated process, many heating times, and high cost.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] An automatic high-yield method for preparing spherical graphite purification, comprising the following specific steps:

[0025] 1) Mix and stir water and spherical graphite into a paste, then add a purification reagent and then fully stir and mix to obtain a uniform mixture, wherein the mass ratio of the spherical graphite to water is 100:(70-100), the The ratio of spherical graphite and purification reagent 1,2,3 is 100:(12-30):(25-40):(8-10), purification reagent 1 is hydrofluoric acid, and the content is 40%, purification reagent 2 It is hydrochloric acid, with a content of 32%, and the purification reagent 3 is pentanoic acid, with a content of 65%, and the carbon content of spherical graphite used is: 95%, and the water used is ultrafiltered water;

[0026] 2) The mixture is heated, and the temperature is raised to 90 degrees at one time and then reacted for 12 hours to obtain a semi-finished mixed solution;

[0027] 3) using a filter press to wash the semi-finish...

Embodiment 2

[0041] An automatic high-yield method for preparing spherical graphite purification, comprising the following specific steps:

[0042] Add 4.8 tons of tap water to the reactor, add 5 tons of spherical graphite, sequentially add 1.15 tons of hydrofluoric acid, 1.4 tons of hydrochloric acid and 0.4 tons of nitric acid, stir evenly, turn on the heating device, the temperature rises to 93 degrees, stop heating, start stirring to make The materials are mixed evenly and the chemical reaction starts; the reaction time is 12 hours, and after the reaction time is up, washing and pressure filtration are performed, and the filter cake after pressure filtration is subjected to a secondary reaction.

[0043] Add 3 tons of pure water to the reaction kettle, add the filter cake of the first reaction and stir evenly, add 2.3 tons of hydrochloric acid and 0.5 tons of nitric acid in turn, stir evenly, turn on the heating device, the temperature rises to 93 degrees, stop heating, start stirring t...

Embodiment 3

[0054] An automatic high-yield method for preparing spherical graphite purification, comprising the following specific steps:

[0055] Add 4.6 tons of tap water to the reactor, add 5 tons of spherical graphite, sequentially add 1.16 tons of hydrofluoric acid, 1.5 tons of hydrochloric acid and 0.5 tons of nitric acid, stir evenly, turn on the heating device, the temperature rises to 93 degrees, stop heating, start stirring to make The materials are mixed evenly and the chemical reaction starts; the reaction time is 12 hours, and after the reaction time is up, washing and pressure filtration are performed, and the filter cake after pressure filtration is subjected to a secondary reaction.

[0056] Add 3 tons of pure water to the reaction kettle, add the filter cake of the first reaction and stir evenly, add 2.4 tons of hydrochloric acid and 0.5 tons of nitric acid in turn, stir evenly, turn on the heating device, the temperature rises to 93 degrees, stop heating, start stirring t...

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Abstract

The invention discloses an automatic high-yield purification method for preparing spherical graphite. The method comprises the following steps: dividing a fineness range value of a catalyst for preparing brominated polystyrene; weighing and taking materials; crushing; uniformly mixing; and completing the preparation of the catalyst. The method has the beneficial effects that the amount of the catalyst can be regulated and controlled according to the fineness ratio according to the preparation requirement, so the effect of preparing six different finenesses is achieved; the mode of crushing one by one and adding mixed powder is adopted, and various single materials can be fully mixed together in the same crushing equipment, so the consistency of the crushing fineness is ensured; and the crushing degree can be adjusted by reducing or increasing the number of the hammer heads of the crusher, so that the effect of adjusting the crushing fineness is achieved.

Description

technical field [0001] The present application relates to an automated high-yield method, in particular to an automated high-yield method for preparing and purifying spherical graphite. Background technique [0002] Graphite is a mineral name, usually produced in metamorphic rocks, which is formed by regional metamorphism or magma intrusion of coal or carbonaceous rocks (or sediments). Graphite is an allotrope of elemental carbon. Each carbon The periphery of the atom is connected with three other carbon atoms, arranged in a honeycomb-like hexagonal shape, and there is a weak van der Waals attraction between each layer. Since each carbon atom will release an electron, those electrons can move freely, so Graphite is an electrical conductor. Graphite is one of the softest minerals. It is opaque and greasy to the touch. Its color ranges from iron black to steel gray. Its shape is crystal, flake, scale, stripe, layer or scattered in metamorphic rock Medium, chemically inactive ...

Claims

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Application Information

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IPC IPC(8): C01B32/215
CPCC01B32/215
Inventor 苏志远冯向阳党会娟
Owner 大同氢都驰拓新能源有限公司
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