CN102992318A - Method for preparing walnut shell activated carbon - Google Patents
Method for preparing walnut shell activated carbon Download PDFInfo
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- CN102992318A CN102992318A CN2012105492249A CN201210549224A CN102992318A CN 102992318 A CN102992318 A CN 102992318A CN 2012105492249 A CN2012105492249 A CN 2012105492249A CN 201210549224 A CN201210549224 A CN 201210549224A CN 102992318 A CN102992318 A CN 102992318A
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- nut
- walnut
- activated carbon
- shell
- walnut shells
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Abstract
The invention discloses a method for preparing walnut shell activated carbon, which comprises the following steps: putting walnut shells crushed to 0.4-0.5 mm into a phosphoric acid solution with a concentration of 40-70% to soak for 10-20 h; putting the walnut shells into a muffle furnace to activate; after the walnut shells are cooled, washing the walnut shells by using distilled water until the walnut shells become neutral shells; and finally, drying and grinding the walnut shells so as to obtain walnut shell activated carbon. According to the method for preparing walnut shell activated carbon disclosed by the invention, activated carbon can be prepared by taking walnut shells as a raw material through the steps of carrying out crushing, phosphoric acid soaking, activation, washing and drying on the walnut shells, and in the whole preparation process, no toxic or harmful substance is produced, and the operation is convenient; and the method is low in raw material cost, and high in yield.
Description
Technical field
The present invention relates to a kind of preparation method of gac, be specifically related to a kind of preparation method of nut-shell gac.
Background technology
Gac has abundant gap structure, huge specific surface area, good chemical stability, stronger absorption property and a carbon material adsorbing material of abrasive wear resistance as a kind of, be widely used in nearly all modernized industrial department, its industrial scale, production technique and raw materials for production have also had a lot of development.At present, the raw material of preparation gac is a lot, theoretically, nearly all carbonaceous material takes suitable technique all can be used for the preparation of gac, in fact the preparation of gac still is subjected to the restriction of raw material, state of the art and production cost factors, somewhat expensive, the production technique more complicated of raw material of existing gac preparation is sought cheap raw material and simple production technique is very necessary.
Summary of the invention
The preparation method who the purpose of this invention is to provide a kind of nut-shell gac, this preparation method is simple, saves cost.
The technical solution adopted in the present invention is that the preparation method of nut-shell gac puts into phosphoric acid solution with the nut-shell of fragmentation and soaks 10-20h, then put into the retort furnace activation, be washed till neutrality with distilled water after the cooling, at last its oven dry ground, namely obtain the nut-shell gac.
Characteristics of the present invention also are,
Wherein, the granularity of broken nut-shell is 0.4-0.5mm.
Wherein, the concentration of phosphoric acid solution is 40-70%.
The invention has the beneficial effects as follows, the preparation method of nut-shell gac of the present invention, take nut-shell as raw material, it just can be obtained gac through fragmentation, phosphoric acid dip, activation and rinsing drying, in whole preparation process, can not produce any poisonous and hazardous material, easy to operate, and cost of material is cheap, and yield rate is high.
Embodiment
The present invention is described in detail below in conjunction with embodiment.
The preparation method of nut-shell gac of the present invention, it is that the phosphoric acid solution of 40-70% soaks 10-20h that the nut-shell that is crushed to 0.4-0.5mm is put into concentration, then puts into the retort furnace activation, is washed till neutrality with distilled water after the cooling, at last its oven dry is ground, namely obtain the nut-shell gac.
The preparation method of nut-shell gac of the present invention take nut-shell as raw material, just can obtain gac with it through fragmentation, phosphoric acid dip, activation and rinsing drying, in whole preparation process, can not produce any poisonous and hazardous material, easy to operate, and cost of material is cheap, and yield rate is high.
Embodiment 1
It is that 40% phosphoric acid solution soaks 10h that the nut-shell that is crushed to 0.4mm is put into concentration, then puts into the retort furnace activation, is washed till neutrality with distilled water after the cooling, at last its oven dry is ground, and namely obtains the nut-shell gac.
Embodiment 2
It is that 60% phosphoric acid solution soaks 20h that the nut-shell that is crushed to 0.5mm is put into concentration, then puts into the retort furnace activation, is washed till neutrality with distilled water after the cooling, at last its oven dry is ground, and namely obtains the nut-shell gac.
Embodiment 3
It is that 70% phosphoric acid solution soaks 16h that the nut-shell that is crushed to 0.45mm is put into concentration, then puts into the retort furnace activation, is washed till neutrality with distilled water after the cooling, at last its oven dry is ground, and namely obtains the nut-shell gac.
Claims (3)
1. the preparation method of nut-shell gac is characterized in that: the nut-shell of fragmentation is put into phosphoric acid solution soak 10-20h, then put into the retort furnace activation, be washed till neutrality with distilled water after the cooling, at last its oven dry is ground, namely obtain the nut-shell gac.
2. the preparation method of nut-shell gac according to claim 1, it is characterized in that: the granularity of the nut-shell of described fragmentation is 0.4-0.5mm.
3. the preparation method of nut-shell gac according to claim 1, it is characterized in that: the concentration of described phosphoric acid solution is 40-70%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105492249A CN102992318A (en) | 2012-12-17 | 2012-12-17 | Method for preparing walnut shell activated carbon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105492249A CN102992318A (en) | 2012-12-17 | 2012-12-17 | Method for preparing walnut shell activated carbon |
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| CN102992318A true CN102992318A (en) | 2013-03-27 |
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| CN2012105492249A Pending CN102992318A (en) | 2012-12-17 | 2012-12-17 | Method for preparing walnut shell activated carbon |
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| CN (1) | CN102992318A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103864168A (en) * | 2014-03-13 | 2014-06-18 | 北京工业大学 | Method for removing rhodamine B dye from wastewater by walnut shell biomass charcoal adsorbent |
| CN105217626A (en) * | 2015-10-10 | 2016-01-06 | 西安工程大学 | A kind of preparation method of nut-shell matrix activated carbon |
| CN105753173A (en) * | 2016-04-09 | 2016-07-13 | 广州聚注专利研发有限公司 | Method for degrading bisphenol A in sewage by virtue of biological activated carbon prepared from oyster mushroom strain |
| CN106976874A (en) * | 2017-04-24 | 2017-07-25 | 句容市百诚活性炭有限公司 | A kind of preparation method of activated carbon |
| CN106976879A (en) * | 2017-04-24 | 2017-07-25 | 句容市百诚活性炭有限公司 | A kind of preparation method of pecan shell activated carbon |
| CN107128915A (en) * | 2017-04-24 | 2017-09-05 | 句容市百诚活性炭有限公司 | A kind of preparation method of the activated carbon of high absorption capacity |
| CN109126722A (en) * | 2018-08-23 | 2019-01-04 | 安徽实力环保科技有限公司 | It is a kind of for handling modified straw-bean dregs-walnut shell adsorbing material preparation method of sewage |
| CN110217790A (en) * | 2019-06-28 | 2019-09-10 | 北京理工大学珠海学院 | A kind of preparation method of high absorption property peach kernel shell active carbon |
| CN111318256A (en) * | 2020-03-06 | 2020-06-23 | 浙江农林大学暨阳学院 | Preparation method of walnut shell biomass charcoal and adsorption method of walnut shell biomass charcoal on metal copper ions |
-
2012
- 2012-12-17 CN CN2012105492249A patent/CN102992318A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103864168A (en) * | 2014-03-13 | 2014-06-18 | 北京工业大学 | Method for removing rhodamine B dye from wastewater by walnut shell biomass charcoal adsorbent |
| CN103864168B (en) * | 2014-03-13 | 2015-10-28 | 北京工业大学 | The method of rhdamine B in waste water removed by a kind of nut-shell biomass charcoal sorbent material |
| CN105217626A (en) * | 2015-10-10 | 2016-01-06 | 西安工程大学 | A kind of preparation method of nut-shell matrix activated carbon |
| CN105753173A (en) * | 2016-04-09 | 2016-07-13 | 广州聚注专利研发有限公司 | Method for degrading bisphenol A in sewage by virtue of biological activated carbon prepared from oyster mushroom strain |
| CN106976874A (en) * | 2017-04-24 | 2017-07-25 | 句容市百诚活性炭有限公司 | A kind of preparation method of activated carbon |
| CN106976879A (en) * | 2017-04-24 | 2017-07-25 | 句容市百诚活性炭有限公司 | A kind of preparation method of pecan shell activated carbon |
| CN107128915A (en) * | 2017-04-24 | 2017-09-05 | 句容市百诚活性炭有限公司 | A kind of preparation method of the activated carbon of high absorption capacity |
| CN109126722A (en) * | 2018-08-23 | 2019-01-04 | 安徽实力环保科技有限公司 | It is a kind of for handling modified straw-bean dregs-walnut shell adsorbing material preparation method of sewage |
| CN110217790A (en) * | 2019-06-28 | 2019-09-10 | 北京理工大学珠海学院 | A kind of preparation method of high absorption property peach kernel shell active carbon |
| CN111318256A (en) * | 2020-03-06 | 2020-06-23 | 浙江农林大学暨阳学院 | Preparation method of walnut shell biomass charcoal and adsorption method of walnut shell biomass charcoal on metal copper ions |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130327 |