CN103121023A - Washing method for electrical carbon material - Google Patents
Washing method for electrical carbon material Download PDFInfo
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- CN103121023A CN103121023A CN2013100313266A CN201310031326A CN103121023A CN 103121023 A CN103121023 A CN 103121023A CN 2013100313266 A CN2013100313266 A CN 2013100313266A CN 201310031326 A CN201310031326 A CN 201310031326A CN 103121023 A CN103121023 A CN 103121023A
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Abstract
The invention discloses a washing method for electrical carbon material. The washing method includes the following steps: first, the electrical carbon material after being carbonized and activated is added into a pickling kettle filled with an acid solution, then, the electrical carbon material is maintained for 0.5-1 hours after being boiled with water vapor led into the pickling kettle, and the electrical carbon material is taken out after pickling is repeated for 2-5 times; the electrical carbon material after being pickled is taken out, put into deionized water and maintained for 0.5-1 hours after being boiled with water vapor led into the pickling kettle, and the process of boiling washing by using of the deionized water is repeated for 5-10 times till the potential of hydrogen (PH) value of the electrical carbon material is 6.5-8; and the electrical carbon material is taken out from the deionized water, and then the pure electrical carbon material with the parts per million (PPM) degree smaller than or equal to 100 is obtained. According to the washing method for the electrical carbon material, through the pickling and the boiling washing by using of the deionized water, metal ions, nonmetallic ions and impurities are removed, the bore diameter structure of the electrical carbon material is adjusted, the application range of active electrical carbon is enlarged, and the pure electrical carbon material with the PPM degree smaller than or equal to 100 can be obtained finally; and the washing method for the electrical carbon material has the advantages of being short in procedure, high in efficiency and suitable for production of highly-purified electrical carbon material.
Description
Technical field
The present invention relates to the preparing technical field of electrical carbon material, specifically a kind of flow process is short, cleaning efficiency is high and can obtain the cleaning method of high cleanliness electrical carbon material.
Background technology
In the preparation process of electrical carbon material, can produce a certain amount of metal ion, nonmetallic ion and various impurity, if it is not cleaned, can the not high performance of electrical carbon material that causes can't meet the demands due to the degree of purity of electrical carbon material.Existing electrical carbon material also can carry out some simple cleanings in preparation process, can say that the partial impurities in electrical carbon material clears out, but along with improving constantly of electrical carbon material instructions for use, can't satisfy the needs of technical development through the simple electrical carbon material that cleans.
Summary of the invention
The objective of the invention is the problem that clean to exist for electrical carbon in prior art, provide that a kind of flow process is short, cleaning efficiency is high and can obtain the cleaning method of high cleanliness electrical carbon material.
The objective of the invention is to solve by the following technical programs:
A kind of cleaning method of electrical carbon material is characterized in that described preparation method carries out in the steps below:
(1) electrical carbon material after carbonization-activation is added in the pickling still that acid solution is housed;
(2) pass into water vapour in the pickling still and boil rear maintenance 0.5-1 hour;
(3) repeat 2-5 rear electrical carbon material that takes out of above-mentioned steps;
(4) electrical carbon material after pickling is taken out put into and pass into steam after deionized water and boil rear maintenance 0.5-1 hour;
(5) till 5-10 ph value to electrical carbon material of repeating step (4) is 6.5-8;
(6) electrical carbon material is pulled out in deionized water namely completed cleaning.
Acid solution in described step (1) is that one or more in sulfuric acid, hydrochloric acid, aqueous solution of nitric acid mix.
Acid solutions in described step (1) is 20-30%.
The weight of the acid solution in described step (1) is 8-15:1 with the ratio of the weight of electrical carbon material.
The weight of the deionized water in described step (4) is 10-20:1 with the ratio of the weight of electrical carbon material.
The present invention has the following advantages compared to existing technology:
The present invention removes metal ion and impurity in electrical carbon material by pickling, further adjusts the aperture structure of material with carbon element and enlarges the purposes scope of active electrical carbon; Simultaneously the deionization poach is washed and can be removed various metals, the nonmetallic ion that contains in electrical carbon material after pickling, finally obtain the pure electrical carbon material of PPM level≤100, have the advantages that cleaning process is short, cleaning efficiency is high, be suitable for the production of high-purity electrical carbon material.
The specific embodiment
The present invention is further illustrated below in conjunction with embodiment.
Embodiment 1
At first the electrical carbon material after carbonization-activation is added and be equipped with in the pickling still that concentration is 30% acid solution, this acid solution is that sulfuric acid, combined form, then after passing into water vapour in the pickling still and boiling and kept 0.5 hour, repeat to take out electrical carbon material after pickling 3 times, during each pickling, electrical carbon material is 1:8 with the ratio of the weight of acid solution, pickling can be removed metal ion and the impurity in electrical carbon material, further adjusts the aperture structure of material with carbon element, enlarges the purposes scope of active electrical carbon; Electrical carbon material after pickling is taken out to put into pass into steam after deionized water and boil rear maintenance 0.5 hour, and repeat deionized water and boil and wash till 10 ph values to electrical carbon material are 6.8-7.5, the weight of wherein at every turn boiling electrical carbon material when washing is 1:10 with the ratio of the weight of deionized water, the deionization poach is washed and can be removed various metals, the nonmetallic ion that contains in electrical carbon material after pickling, finally obtains the pure electrical carbon material of PPM level≤100; At last electrical carbon material is pulled out in deionized water and namely completed cleaning.Cleaning method of the present invention has the advantages that flow process is short, efficient is high, is suitable for the production of high-purity electrical carbon material.
Embodiment 2
At first the electrical carbon material after carbonization-activation is added and be equipped with in the pickling still that concentration is 24% acid solution, this acid solution is that hydrochloric acid, aqueous solution of nitric acid mix, then after passing into water vapour in the pickling still and boiling and kept 0.8 hour, repeat to take out electrical carbon material after pickling 2 times, during each pickling, electrical carbon material is 1:12 with the ratio of the weight of acid solution, pickling can be removed metal ion and the impurity in electrical carbon material, further adjust the aperture structure of material with carbon element, enlarge the purposes scope of active electrical carbon; Electrical carbon material after pickling is taken out to put into pass into steam after deionized water and boil rear maintenance 0.8 hour, and repeat deionized water and boil and wash till 7 ph values to electrical carbon material are 6.5-7.5, the weight of wherein at every turn boiling electrical carbon material when washing is 1:17 with the ratio of the weight of deionized water, the deionization poach is washed and can be removed various metals, the nonmetallic ion that contains in electrical carbon material after pickling, finally obtains the pure electrical carbon material of PPM level≤100; At last electrical carbon material is pulled out in deionized water and namely completed cleaning.Cleaning method of the present invention has the advantages that flow process is short, efficient is high, is suitable for the production of high-purity electrical carbon material.
Embodiment 3
At first the electrical carbon material after carbonization-activation is added and be equipped with in the pickling still that concentration is 27% acid solution, this acid solution is that one or more in sulfuric acid, hydrochloric acid, aqueous solution of nitric acid mix, then after passing into water vapour in the pickling still and boiling and kept 0.6 hour, repeat to take out electrical carbon material after pickling 4 times, during each pickling, electrical carbon material is 1:10 with the ratio of the weight of acid solution, pickling can be removed metal ion and the impurity in electrical carbon material, further adjust the aperture structure of material with carbon element, enlarge the purposes scope of active electrical carbon; Electrical carbon material after pickling is taken out to put into pass into steam after deionized water and boil rear maintenance 0.9 hour, and repeat deionized water and boil and wash till 9 ph values to electrical carbon material are 7-8, the weight of wherein at every turn boiling electrical carbon material when washing is 1:13 with the ratio of the weight of deionized water, the deionization poach is washed and can be removed various metals, the nonmetallic ion that contains in electrical carbon material after pickling, finally obtains the pure electrical carbon material of PPM level≤100; At last electrical carbon material is pulled out in deionized water and namely completed cleaning.Cleaning method of the present invention has the advantages that flow process is short, efficient is high, is suitable for the production of high-purity electrical carbon material.
Embodiment 4
At first the electrical carbon material after carbonization-activation is added and be equipped with in the pickling still that concentration is 20% acid solution, this acid solution is that sulfuric acid, hydrochloric acid, aqueous solution of nitric acid mix, then after passing into water vapour in the pickling still and boiling and kept 1 hour, repeat to take out electrical carbon material after pickling 5 times, during each pickling, electrical carbon material is 1:15 with the ratio of the weight of acid solution, pickling can be removed metal ion and the impurity in electrical carbon material, further adjust the aperture structure of material with carbon element, enlarge the purposes scope of active electrical carbon; Electrical carbon material after pickling is taken out to put into pass into steam after deionized water and boil rear maintenance 1 hour, and repeat deionized water and boil and wash till 5 ph values to electrical carbon material are 6.8-7.3, the weight of wherein at every turn boiling electrical carbon material when washing is 1:20 with the ratio of the weight of deionized water, the deionization poach is washed and can be removed various metals, the nonmetallic ion that contains in electrical carbon material after pickling, finally obtains the pure electrical carbon material of PPM level≤100; At last electrical carbon material is pulled out in deionized water and namely completed cleaning.Cleaning method of the present invention has the advantages that flow process is short, efficient is high, is suitable for the production of high-purity electrical carbon material.
Above embodiment only for explanation technological thought of the present invention, can not limit protection scope of the present invention with this, every technological thought that proposes according to the present invention, and any change of doing on the technical scheme basis is within all falling into protection domain of the present invention; The technology that the present invention does not relate to all can be realized by prior art.
Claims (5)
1. the cleaning method of an electrical carbon material is characterized in that described preparation method carries out in the steps below:
(1) electrical carbon material after carbonization-activation is added in the pickling still that acid solution is housed;
(2) pass into water vapour in the pickling still and boil rear maintenance 0.5-1 hour;
(3) repeat 2-5 rear electrical carbon material that takes out of above-mentioned steps;
(4) electrical carbon material after pickling is taken out put into and pass into steam after deionized water and boil rear maintenance 0.5-1 hour;
(5) till 5-10 ph value to electrical carbon material of repeating step (4) is 6.5-8;
(6) electrical carbon material is pulled out in deionized water namely completed cleaning.
2. the cleaning method of electrical carbon material according to claim 1 is characterized in that acid solution in described step (1) is that one or more in sulfuric acid, hydrochloric acid, aqueous solution of nitric acid mix.
3. the cleaning method of electrical carbon material according to claim 1 and 2, is characterized in that the acid solutions in described step (1) is 20-30%.
4. the cleaning method of electrical carbon material according to claim 3, the weight that it is characterized in that the acid solution in described step (1) is 8-15:1 with the ratio of the weight of electrical carbon material.
5. the cleaning method of electrical carbon material according to claim 1, the weight that it is characterized in that the deionized water in described step (4) is 10-20:1 with the ratio of the weight of electrical carbon material.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013100313266A CN103121023A (en) | 2013-01-28 | 2013-01-28 | Washing method for electrical carbon material |
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| CN2013100313266A CN103121023A (en) | 2013-01-28 | 2013-01-28 | Washing method for electrical carbon material |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113245292A (en) * | 2021-04-20 | 2021-08-13 | 福建韩研环保科技有限公司 | Assembly line type activated carbon pickling and washing integrated machine |
| CN116425141A (en) * | 2023-03-09 | 2023-07-14 | 中国人民解放军军事科学院防化研究院 | Deep purification method of carbon material for lithium ion battery |
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| JPS54144929A (en) * | 1978-05-03 | 1979-11-12 | Yuasa Battery Co Ltd | Laminated water battery |
| CN1062882A (en) * | 1990-12-30 | 1992-07-22 | 西安市长信高科技公司 | Pure refined coal and high purity graphite powder refining process and equipment |
| CN1077934A (en) * | 1992-04-23 | 1993-11-03 | 项缙农 | The activation furnace of producing activated carbon by chemical method and working method |
| CN1330423A (en) * | 2001-06-29 | 2002-01-09 | 清华大学 | Process for preparing electrode carrier catalyst of fuel battery |
| CN1724965A (en) * | 2005-07-15 | 2006-01-25 | 贵州宏福实业开发有限总公司 | Descaling Method of Phosphoric Acid Concentration Heat Exchanger |
| CN1885594A (en) * | 2006-05-18 | 2006-12-27 | 复旦大学 | Method for preparing lithium ion battery negative electrode material |
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2013
- 2013-01-28 CN CN2013100313266A patent/CN103121023A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54144929A (en) * | 1978-05-03 | 1979-11-12 | Yuasa Battery Co Ltd | Laminated water battery |
| CN1062882A (en) * | 1990-12-30 | 1992-07-22 | 西安市长信高科技公司 | Pure refined coal and high purity graphite powder refining process and equipment |
| CN1077934A (en) * | 1992-04-23 | 1993-11-03 | 项缙农 | The activation furnace of producing activated carbon by chemical method and working method |
| CN1330423A (en) * | 2001-06-29 | 2002-01-09 | 清华大学 | Process for preparing electrode carrier catalyst of fuel battery |
| CN1724965A (en) * | 2005-07-15 | 2006-01-25 | 贵州宏福实业开发有限总公司 | Descaling Method of Phosphoric Acid Concentration Heat Exchanger |
| CN1885594A (en) * | 2006-05-18 | 2006-12-27 | 复旦大学 | Method for preparing lithium ion battery negative electrode material |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113245292A (en) * | 2021-04-20 | 2021-08-13 | 福建韩研环保科技有限公司 | Assembly line type activated carbon pickling and washing integrated machine |
| CN113245292B (en) * | 2021-04-20 | 2022-09-20 | 广东韩研活性炭科技股份有限公司 | Assembly line type activated carbon pickling and washing integrated machine |
| CN116425141A (en) * | 2023-03-09 | 2023-07-14 | 中国人民解放军军事科学院防化研究院 | Deep purification method of carbon material for lithium ion battery |
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Application publication date: 20130529 |