CN101121513A - Method for preparing active carbon - Google Patents
Method for preparing active carbon Download PDFInfo
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- CN101121513A CN101121513A CNA2007100660641A CN200710066064A CN101121513A CN 101121513 A CN101121513 A CN 101121513A CN A2007100660641 A CNA2007100660641 A CN A2007100660641A CN 200710066064 A CN200710066064 A CN 200710066064A CN 101121513 A CN101121513 A CN 101121513A
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- active carbon
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Abstract
A preparation method of an activated carbon especially relates to a method, in which the activated carbon is produced from a walnut shell. The present invention consists of the following steps: A. Feed preparation: The walnut shell is filtered, dried and broken until the technical walnut shell is obtained for reserve. B. Liquid preparation: a Phosphoric acid, an acetone, a chlorine alum and a heavy oil chemical product are mixed to produce a technical chemical liquor used for reserve. C. Mixture: Mixing and stirring the technical walnut shell and the chemical liquor produces a mixture. D. Carbon activation: Carbonizing the mixture produces the activated carbon of acid particles. E. Rinsing: The acid particles are rinsed. The acid is removed and meanwhile reclaimed. F. Drying: The rinsed particle activated carbon is dried and then packed. The present invention does not produce any harmful substance in the whole production process. The operation is convenient and the finished product rate is high.
Description
Technical field
The present invention relates to a kind of preparation method of active carbon, particularly a kind of walnut shell that utilizes is the feedstock production process of active carbon.
Background technology
Nut-shell belongs to soft plant polishing material, has uniform grain sizes, higher shell content and good wear resisting property.The strainer that utilizes the nut-shell characteristic to make has that adsorptive power is strong, holding filth capacity is big; Anti-oil immersion, oil, suspended substance economic benefits and social benefits are removed characteristics such as easily regeneration.Chinese patent application number is 200510010965.X; the name be called " a kind of preparation method of super-activated carbon " disclosure of the Invention a kind of preparation method of active carbon; be with after charing after raw material coconut husk or the nut-shell fragmentation and being crushed to the setting granularity; mix with solid potassium hydroxide, go in the microwave oven then to activate, obtain activated material; lead to nitrogen protection on bed of material surface in the reactivation process; the activated material chlorohydric acid pickling carries out repeatedly rinsing with distilled water again, dries to neutral back and obtains active carbon finished products.It is strong that the gac that adopts microwave heating potassium hydroxide activation method to make has an absorption property, the characteristics that specific surface area is high.But this method implements cumbersome, and yield rate is low.
Summary of the invention
Purpose of the present invention is intended to and the defective that overcomes prior art, provides a kind of easy to operate, and it is low to consume energy, the method for preparation of active carbon that yield rate is high.
Preparation method of active carbon of the present invention, form by following steps:
A. get the raw materials ready: with nut-shell screening, dry, broken, standby behind the technology nut-shell;
B. dosing: phosphoric acid, acetone, chlorine alum and heavy oil Chemicals are mixed, get the process chemistry solution for standby;
C. mix: the technology nut-shell mixes with chemical solution, stirs, and gets mixed solution;
D. charcoal activation: mixed solution is carried out the charcoal activation, must be with the granulates gac;
E. rinsing: the band granulates is carried out rinsing, and disacidify reclaims spent acid simultaneously;
F. dry: the granulated active carbon through rinsing is carried out drying, and packing promptly.
The described fragmentation of step a is meant nut-shell is crushed to granularity 0.35-0.59mm that the abrasive wear resistance of walnut capsomere is greater than 70%.In the described process chemistry solution of step b, the weight ratio of phosphoric acid, acetone, chlorine alum and heavy oil Chemicals is: 400-1200: 0.5-1.5: 0.5-1.5: 0.8-2.5.
Gac of the present invention is that a nut-shell crushed particles is a main raw material; an amount of in addition chemical solution and water; fully stir by processing condition; carry out a kind of granulated active carbon that charcoal activation, rinsing, recovery chemical wastewater, drying form again; in whole process of production; do not produce any hazardous and noxious substances, and easy to operate, the yield rate height.
Embodiment
The present invention is described further below by embodiment, but be not limited to embodiment.
Embodiment 1
Preparation method of active carbon, form by following steps:
A. get the raw materials ready: with nut-shell screening, dry, broken, granularity is 0.35mm, and abrasive wear resistance is greater than 95%., standby behind the technology nut-shell;
B. dosing: phosphoric acid, acetone, chlorine alum and heavy oil Chemicals are mixed, and the blended weight percent is 800: 1: 1: 1.7, get the process chemistry solution for standby;
C. mix: the technology nut-shell mixes with chemical solution, stirs, and gets mixed solution;
D. charcoal activation: mixed solution is carried out the charcoal activation, must be with the granulates gac;
E. rinsing: the band granulates is carried out rinsing, and disacidify reclaims spent acid simultaneously;
F. dry: the granulated active carbon through rinsing is carried out drying, and packing promptly.
Embodiment 2
Preparation method of active carbon, form by following steps:
A. get the raw materials ready: with nut-shell screening, dry, broken, granularity is 0.45-0.49mm, and abrasive wear resistance is greater than 80%., standby behind the technology nut-shell;
B. dosing: phosphoric acid, acetone, chlorine alum and heavy oil Chemicals are mixed, and the blended weight percent is 800: 1: 1: 1.7, get the process chemistry solution for standby;
All the other are with embodiment 1.
Embodiment 3
Preparation method of active carbon, form by following steps:
A. get the raw materials ready: with nut-shell screening, dry, broken, granularity is 0.49-0.45mm, and abrasive wear resistance is greater than 70%., standby behind the technology nut-shell;
B. dosing: phosphoric acid, acetone, chlorine alum and heavy oil Chemicals are mixed, and the blended weight percent is 1200: 1.5: 1.5: 2.5, get the process chemistry solution for standby;
All the other are with embodiment 1.
Claims (4)
1. a preparation method of active carbon is characterized in that, is made up of following steps:
A. get the raw materials ready: with nut-shell screening, dry, broken, standby behind the technology nut-shell;
B. dosing: phosphoric acid, acetone, chlorine alum and heavy oil Chemicals are mixed, get the process chemistry solution for standby;
C. mix: the technology nut-shell mixes with chemical solution, stirs, and gets mixed solution;
D. charcoal activation: mixed solution is carried out the charcoal activation, must be with the granulates gac;
E. rinsing: the band granulates is carried out rinsing, and disacidify reclaims spent acid simultaneously;
F. dry: the granulated active carbon through rinsing is carried out drying, and packing promptly.
2. preparation method of active carbon according to claim 1 is characterized in that, the described fragmentation of step a is meant nut-shell is crushed to granularity 0.35-0.59mm.
3. preparation method of active carbon according to claim 1 is characterized in that, the abrasive wear resistance of the described walnut capsomere of step a is greater than 70%.
4. preparation method of active carbon according to claim 1 is characterized in that, in the described process chemistry solution of step b, the weight ratio of phosphoric acid, acetone, chlorine alum and heavy oil Chemicals is: 400-1200: 0.5-1.5: 0.5-1.5: 0.8-2.5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100660641A CN101121513A (en) | 2007-07-26 | 2007-07-26 | Method for preparing active carbon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100660641A CN101121513A (en) | 2007-07-26 | 2007-07-26 | Method for preparing active carbon |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101121513A true CN101121513A (en) | 2008-02-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100660641A Pending CN101121513A (en) | 2007-07-26 | 2007-07-26 | Method for preparing active carbon |
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| CN (1) | CN101121513A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103131692A (en) * | 2013-03-06 | 2013-06-05 | 昆明理工大学 | Preparation method of immobilized lipase using modified walnut shell as carrier |
| CN105217630A (en) * | 2015-11-16 | 2016-01-06 | 深圳市格安瑞环保科技有限公司 | Cocoanut active charcoal and preparation method thereof |
| CN108584948A (en) * | 2018-08-15 | 2018-09-28 | 广东振达康环保科技有限公司 | A method of using cocoanut shell activated carbon is prepared for raw material |
| CN109592660A (en) * | 2018-11-22 | 2019-04-09 | 上海杉杉科技有限公司 | A kind of hard carbon presoma using carbon containing biological mass shell preparation, hard carbon/graphite composite material and its preparation method and application |
| CN113353931A (en) * | 2021-07-27 | 2021-09-07 | 福建省鑫森炭业股份有限公司 | Preparation method of activated carbon for blood purification perfusion device and activated carbon |
-
2007
- 2007-07-26 CN CNA2007100660641A patent/CN101121513A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103131692A (en) * | 2013-03-06 | 2013-06-05 | 昆明理工大学 | Preparation method of immobilized lipase using modified walnut shell as carrier |
| CN103131692B (en) * | 2013-03-06 | 2014-11-05 | 昆明理工大学 | Preparation method of immobilized lipase using modified walnut shell as carrier |
| CN105217630A (en) * | 2015-11-16 | 2016-01-06 | 深圳市格安瑞环保科技有限公司 | Cocoanut active charcoal and preparation method thereof |
| CN108584948A (en) * | 2018-08-15 | 2018-09-28 | 广东振达康环保科技有限公司 | A method of using cocoanut shell activated carbon is prepared for raw material |
| CN109592660A (en) * | 2018-11-22 | 2019-04-09 | 上海杉杉科技有限公司 | A kind of hard carbon presoma using carbon containing biological mass shell preparation, hard carbon/graphite composite material and its preparation method and application |
| CN113353931A (en) * | 2021-07-27 | 2021-09-07 | 福建省鑫森炭业股份有限公司 | Preparation method of activated carbon for blood purification perfusion device and activated carbon |
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Open date: 20080213 |