CN103212372A - Method for regenerating gold charcoal - Google Patents
Method for regenerating gold charcoal Download PDFInfo
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- CN103212372A CN103212372A CN2013101490338A CN201310149033A CN103212372A CN 103212372 A CN103212372 A CN 103212372A CN 2013101490338 A CN2013101490338 A CN 2013101490338A CN 201310149033 A CN201310149033 A CN 201310149033A CN 103212372 A CN103212372 A CN 103212372A
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- Prior art keywords
- gold
- charcoal
- active carbon
- regeneration
- apricot shell
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Abstract
The invention relates to a method for regenerating gold charcoal. The method for regenerating the gold charcoal comprises the following steps of: taking used gold active charcoal; screening gold active charcoal with the diameter being 6-12meshes; putting the screened gold active charcoal into four feeding grooves in an integrated activating furnace; putting apricot shell skin into another four feeding grooves in the integrated activating furnace; warming; then adding steam for activating; warming regenerated gold active charcoal by utilizing heat produced by apricot shell active carbon; and screening and packaging the regenerated gold active charcoal. According to the method, the loss of the regenerated gold active charcoal is reduced through warming by utilizing apricot shell active carbon; the intensity is ensured through oxygen insulation; the iodine sorption value is ensured by high-pressure steam; and due to the regeneration of the integrated activating furnace, the yield of adsorption capability of the novel gold charcoal is greater than or equal to 85%, the iodine value of the novel gold charcoal is greater than or equal to 950mg/g and the intensity of the novel gold charcoal is greater than or equal to 95%, and the specific gravity is lowered.
Description
Technical field
The present invention relates to a kind of method of the gold carbon of regenerating.
Background technology
Gold carbon life cycle in carbon slurry process is long, charcoal absorption ore pulp, soup and other material, produce absorption and descend, need regeneration.Existing technology, normally with active carbon with the salt acid cooking, use the clear water rinsing then, enter regenerating furnace oil temperature raising activating and regenerating again.Technology is rather complicated, and hydrochloric acid consumption is big, cost is high, and the loss of charcoal is excessive.
Summary of the invention
Technical problem to be solved by this invention provides a kind of method of the gold carbon of regenerating, integrated activation furnace is that five circulations are fallen pull-type oxygen barrier HTHP and activated continuously, utilized the apricot shell to heat to have reduced the loss of regeneration gold carbon, oxygen barrier has guaranteed intensity, and high-pressure water vapor guarantees iodine sorption value, and integrated activation furnace regeneration can reach the adsorption capacity of new charcoal, general yield 〉=85%, iodine number 〉=950mg/g, intensity 〉=95%, proportion alleviates.
The technical scheme that the present invention solves the problems of the technologies described above is as follows: get used gold active carbon, sieving out diameter is 6～12 purpose gold active carbons, go up in the hopper for four the gold active carbon input one activation furnace that sieves out, put into apricot shell skin in other four last hoppers of one activation furnace, temperature raising, add steam again and activate, the heat that utilizes apricot shell active carbon to produce is given the temperature raising of regeneration gold active carbon, after the regeneration of gold active carbon through screening, packing.
On the basis of technique scheme, the present invention can also do following improvement.
Further, describedly be warmed to 850～900 ℃;
Adopt the beneficial effect of this step to be: some material is burnt by high temperature, and produces new hole, obviously increases thereby reach the absorption of regeneration back, can reach new charcoal adsorption capacity.
Further, described water vapor pressure is controlled at 3～4kg.
Further, described activation temperature is controlled at 880～930 ℃.
The invention has the beneficial effects as follows:
The present invention utilizes integrated activation furnace to adopt high-temperature high-pressure steam activation gold active carbon, the activation section oxygen barrier is adopted in successively aerating activation, relies on five circulations of carbide bound (charing compensating band) charing fire to fall pull-type generation heat and improves the activation section temperature, thereby assurance activation temperature, oxygen barrier improves intensity, and high pressure-temperature improves adsorption capacity, hole prosperity, the aperture is straight, adsorption rate is fast, and desorb has easily reached effective regeneration.
The specific embodiment
Below principle of the present invention and feature be described, institute gives an actual example and only is used to explain the present invention, is not to be used to limit scope of the present invention.
Embodiment 1
Get used gold active carbon, sieving out diameter is 6～12 purpose gold active carbons, the gold active carbon that sieves out is dropped in four last hoppers of one activation furnace, put into apricot shell skin, temperature raising in other four last hoppers of one activation furnace, be warmed to more than 850 ℃, add steam again and activate, activation temperature is controlled at 900 ℃, and water vapor pressure is controlled at 3kg, the heat that utilizes apricot shell skin to produce is given the temperature raising of regeneration gold active carbon, after the regeneration of gold active carbon through screening, packing.
The method of inspection of regenerated carbon: test with the active carbon method of inspection according to extracting gold from.
Standard No.: LY/T1125-93
Gold active carbon after embodiment 1 regeneration can reach the adsorption capacity of new charcoal, general yield 86%, and iodine sorption value 972mg/g, intensity 96%, proportion alleviates.
Embodiment 2
Get used gold active carbon, sieving out diameter is 6～12 purpose gold active carbons, go up in the hopper for four the gold active carbon input one activation furnace that sieves out, the one activation furnace in addition four go up in the hoppers and put into apricot shell skin, more than the temperature raising to 850 ℃, add steam again and activate, activation temperature is controlled at 900 ℃, water vapor pressure is controlled at 3kg, and the heat that utilizes apricot shell skin to produce is given the temperature raising of regeneration gold active carbon, after the regeneration of gold active carbon through screening, packing.
The method of inspection of regenerated carbon: test with the active carbon method of inspection according to extracting gold from.
Standard No.: LY/T1125-93
Gold active carbon after embodiment 2 regeneration can reach the adsorption capacity of new charcoal, general yield 88%, and iodine sorption value 958mg/g, intensity 98%, proportion alleviates.
Embodiment 3
Get used gold active carbon, sieving out diameter is 6～12 purpose gold active carbons, go up in the hopper for four the gold active carbon input one activation furnace that sieves out, the one activation furnace in addition four go up in the hoppers and put into apricot shell skin, more than the temperature raising to 850 ℃, add steam again and activate, 900 ℃ of activation temperature controls, water vapor pressure is controlled at 3kg, and the heat that utilizes apricot shell active carbon to produce is given the temperature raising of regeneration gold active carbon, after the regeneration of gold active carbon through screening, packing.
The method of inspection of regenerated carbon: test with the active carbon method of inspection according to extracting gold from.
Standard No.: LY/T1125-93
Gold active carbon after embodiment 3 regeneration can reach the adsorption capacity of new charcoal, general yield 88%, and iodine sorption value 987mg/g, intensity 97%, proportion alleviates.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. regeneration gold process of active carbon, it is characterized in that, get used gold active carbon, sieving out diameter is 6～12 purpose gold active carbons, the gold active carbon that sieves out is dropped in four last hoppers of one activation furnace, puts into apricot shell skin in other four last hoppers of one activation furnace, temperature raising, add steam again and activate, the heat that utilizes apricot shell active carbon to produce is given the temperature raising of regeneration gold active carbon, after the regeneration of gold active carbon through dedusting, screening, packing.
2. method according to claim 1 is characterized in that, describedly is warmed to 800～900 ℃.
3. method according to claim 1 is characterized in that described water vapor pressure is controlled at 3～4kg.
4. method according to claim 1 is characterized in that, described activation temperature is controlled at 880～930 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101490338A CN103212372A (en) | 2013-04-26 | 2013-04-26 | Method for regenerating gold charcoal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101490338A CN103212372A (en) | 2013-04-26 | 2013-04-26 | Method for regenerating gold charcoal |
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| Publication Number | Publication Date |
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| CN103212372A true CN103212372A (en) | 2013-07-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101490338A Pending CN103212372A (en) | 2013-04-26 | 2013-04-26 | Method for regenerating gold charcoal |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110586200A (en) * | 2019-10-08 | 2019-12-20 | 西安凯立新材料股份有限公司 | Regeneration method of gold-carbon catalyst for acetylene hydrochlorination |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1966405A (en) * | 2005-11-14 | 2007-05-23 | 上海正海活性炭有限公司 | Regeneration device and method for making active carbon and saturated active carbon using waste heat |
| JP2011212516A (en) * | 2010-03-31 | 2011-10-27 | Jfe Engineering Corp | Activated carbon regeneration apparatus |
-
2013
- 2013-04-26 CN CN2013101490338A patent/CN103212372A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1966405A (en) * | 2005-11-14 | 2007-05-23 | 上海正海活性炭有限公司 | Regeneration device and method for making active carbon and saturated active carbon using waste heat |
| JP2011212516A (en) * | 2010-03-31 | 2011-10-27 | Jfe Engineering Corp | Activated carbon regeneration apparatus |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110586200A (en) * | 2019-10-08 | 2019-12-20 | 西安凯立新材料股份有限公司 | Regeneration method of gold-carbon catalyst for acetylene hydrochlorination |
| CN110586200B (en) * | 2019-10-08 | 2022-08-12 | 西安凯立新材料股份有限公司 | Regeneration method of gold-carbon catalyst for acetylene hydrochlorination |
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Application publication date: 20130724 |