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A production process and graphite electrode technology, which is applied to battery electrodes, circuits, electrical components, etc., can solve the problems of low product quality stability, low graphite yield, and low graphite purity, and achieve good crystal alignment, less pollution, The effect of high production efficiency
Inactive Publication Date: 2016-01-27
LIANYUNGANG JIANGLIDA MINERAL
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Problems solved by technology
Traditional graphite electrode processing technology, product quality stability is not high
At present, the graphite produced by the acid-base method has a low yield and a purity of about 98%-99%, which cannot meet the needs of production. Sodium hydroxide is generally used for alkali, and sulfuric acid, hydrochloric acid, nitric acid, etc. are used for acids. This method pollutes seriously. And the purity of graphite produced is low
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Embodiment 1
[0039] A graphite electrode production process, the steps are as follows, comprising:
[0040] (1) raw material: adopt the graphite scrap after roasting as raw material, the graphite micropowder that adopts is waste and old graphite;
[0041] (2) Pulverization: Use a pulverizer to pulverize the roasted graphite scraps to form graphite powder. The average particle size of graphite powder is between 15-20 microns. In order to realize the control of graphite powder crystal microstructure and particle shape, it is necessary to The graphite powder is crushed and shaped through two processes;
[0042] (3) Purification: adopt hydrofluoric acid, sulfuric acid, hydrochloric acid according to the mass ratio is 12: 10: 3 and the graphite after pulverizing and spheroidizing to mix, carry out chemical purification, the purity of graphite obtained is 99.98%;
[0043] (4) drying: the purified spherical graphite is heated and dried to remove the moisture inside;
[0044] (5) Screening: the ...
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Abstract
A graphite electrode production process is as follows: (1) taking a raw material, to be more specific, taking baked graphite scrap as the raw material; (2) crushing, to be more specific, using a crusher for crushing the baked graphite scrap; (3) purifying, to be more specific, mixing hydrofluoric acid, sulfuric acid and hydrochloric acid with crushed spheroidizing-formed graphite according to certain formula proportion for purifying; (4) drying, to be more specific, drying the purified spherical graphite; (5) screening, to be more specific, removing larger impurities in the dried spherical graphite; (6) fusing, to be more specific, fully mixing the dried spherical graphite and resin; (7) coating, to be more specific, coating the mixed spherical graphite and resin by reaction; (8) lightly crushing, to be more specific, using a light crusher for beating the sintered anode material into powder; and (9) packing, to be more specific, cooling the material, and packaging; the advantages of the graphite electrode production process are that the process method uses less dosage of sulfuric acid and hydrochloric acid, is less in pollution and high in production efficiency, and compared with the general process, the step is improved by 0.7h.
Description
technical field [0001] The invention relates to the technical field of chemical industry, in particular to a graphite electrode production process. Background technique [0002] Graphite is an allotrope of elemental carbon. The periphery of each carbon atom is connected with three other carbon atoms arranged in a honeycomb-like multiple hexagons to form a covalent molecule. Graphite is an electrical conductor because each carbon atom emits an electron and those electrons are free to move. Graphite is one of the softest minerals, and its uses include making pencil leads and lubricants. The traditional graphite electrode processing technology has low product quality stability. At present, the graphite produced by the acid-base method has a low yield and a purity of about 98%-99%, which cannot meet the needs of production. Sodium hydroxide is generally used for alkali, and sulfuric acid, hydrochloric acid, nitric acid, etc. are used for acids. This method pollutes seriously. ...
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