CN103785356A - Method for preparing activated carbon from pomelo peels, hemp stems and walnut shells - Google Patents
Method for preparing activated carbon from pomelo peels, hemp stems and walnut shells Download PDFInfo
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- CN103785356A CN103785356A CN201310495709.9A CN201310495709A CN103785356A CN 103785356 A CN103785356 A CN 103785356A CN 201310495709 A CN201310495709 A CN 201310495709A CN 103785356 A CN103785356 A CN 103785356A
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Abstract
The invention provides a method for preparing activated carbon from pomelo peels, hemp stems and walnut shells. The method comprises the steps of selecting and mixing the pomelo peels, the hemp stems and the walnut shells in proportion, grinding the dried mixture to obtain the raw materials, mixing the granules of the raw materials with an activating agent uniformly to obtain a mixed material, adding water to soak the mixed material, putting the soaked material into a microwave oven to undergo carbonization activation, washing the material with acid and water and drying the material in sequence, grinding the dried raw material, sieving the powder by adopting sieves with different mesh numbers to obtain the activated carbon with three-level fineness, and mixing the activated carbon in proportion to form a final product. The activated carbon prepared by the method has good adsorption property and long service life.
Description
Technical field
The application relates to a kind of preparation method of active carbon, relates in particular to a kind of method of utilizing pomelo peel, waste of flax, walnut shell to prepare active carbon.
Background technology
Active carbon, owing to having flourishing internal void structure, therefore becomes a kind of extremely important adsorbent, is widely used in many fields such as water treatment, environmental protection, agricultural.The raw material of preparing active carbon is a lot, and the plant materials such as existing timber, husk, crop material also have coal, petroleum coke, rubber etc.In energy crisis and environmental problem day by day serious today, utilize the agriculture and forestry organic waste material cheap, output is abundant to prepare active carbon and receive increasing concern.But existing technique is conventionally all more single in the time selecting agriculture and forestry organic waste material raw material, and therefore the performance of prepared active carbon is comparatively uneven, is unfavorable for the reasonable utilization of agriculture and forestry organic waste material.
Summary of the invention
The present invention aims to provide a kind of method for preparation of active carbon, and it adopts multiple agriculture and forestry organic waste material to be mixed to form in proportion raw material, particularly, comprises the steps:
(1) choose pomelo peel, waste of flax, walnut shell and mix in proportion, at the temperature of 115 degrees Celsius, dry 18 hours;
(2) mixture after step 1 is dried is crushed to particle diameter 1.6-1.8mm left and right, obtains feed particles;
(3) by the feed particles in step 2 according to mixing in proportion to obtain mixed material with potassium hydroxide and potash, add and the water of 50 degrees Celsius of the weight such as mixed material, flood 18 hours;
(4) material after the dipping in step 3 is put into micro-wave oven, preferably, carbonization-activation 7 minutes under the microwave irradiation power of 400-450W.
(5) adopt the hydrochloric acid of 1.5 moles every liter under 85 degrees Celsius, to boil 40 minutes material after the activation in step 4, more neutral in rinsing in pure water, then under 130 degrees Celsius, dry 10 hours.
(6) drying material in step 5 is ground, and adopt the sieve of different meshes to sieve three grades of fineness active carbons of acquisition, they are mixed to form to final products in proportion.
Preferably, choose pomelo peel, waste of flax, walnut shell in 1:2:1 or the mixing of 1:2:2 ratio.
Preferably, the part by weight of step 3 Raw particle and potassium hydroxide and potash is 1:2:1 or 1:2:2.
Preferably, in step 6, different meshes is 160 orders, 200 orders and 240 orders, and three grades of fineness active carbon weight ratios are 1:3:2.
Preferably, in step 6, different meshes is 150 orders, 200 orders and 250 orders, and three grades of fineness active carbon weight ratios are 1:3:1.
Because the present invention adopts agriculture and forestry organic waste material as raw material, reduce the manufacturing cost of active carbon; And because having adopted multiple different agriculture and forestry organic waste material, the present invention is mixed to form in proportion raw material, take full advantage of the feature that different agriculture and forestry organic waste materials possess the compounds contents such as different lignin, cellulose, hemicellulose, different agriculture and forestry organic waste materials are learnt from other's strong points to offset one's weaknesses mutually, strengthen the utilization ratio of agriculture and forestry organic waste material, improved the performance of prepared active carbon.
The specific embodiment
Embodiment mono-
(1) choose pomelo peel, waste of flax, walnut shell according to the ratio mixing of weight ratio 1:2:1, at the temperature of 115 degrees Celsius, dry 18 hours.
(2) mixture after step 1 is dried is crushed to particle diameter 1.8mm left and right, obtains feed particles.
(3) by the feed particles in step 2 according to mixing to obtain mixed material with the ratio of potassium hydroxide and potash weight ratio 1:2:1, add and the water of 50 degrees Celsius of the weight such as mixed material, flood 18 hours.
(4) material after the dipping in step 3 is put into micro-wave oven, carbonization-activation 7 minutes under the microwave irradiation power of 400W.
(5) adopt the hydrochloric acid of 1.5 moles every liter under 85 degrees Celsius, to boil 40 minutes material after the activation in step 4, more neutral in rinsing in pure water, then under 130 degrees Celsius, dry 10 hours.
(6) drying material in step 6 is ground, and adopt 160 orders, 200 orders and 240 object sieves to sieve three grades of fineness active carbons of acquisition, (in 160 orders, 200 orders and 240 orders order) is mixed to form final products by them according to the ratio of weight ratio 1:3:2.Owing to adopting multistage mixed structure herein, the product that obtains has better level and density, therefore has better absorption property and service life.
According to State Standard of the People's Republic of China GB/T12496.8-1999 and GB/T12496.10-1999, the prepared activated carbon-iodine adsorptive value of the present invention is 1332 milligrams every gram, and methylene blue adsorption value is 169 milliliters every gram.
Embodiment bis-
(1) choose pomelo peel, waste of flax, walnut shell according to the ratio mixing of weight ratio 1:2:2, at the temperature of 115 degrees Celsius, dry 18 hours.
(2) mixture after step 1 is dried is crushed to particle diameter 1.6mm left and right, obtains feed particles.
(3) by the feed particles in step 2 according to mixing to obtain mixed material with the ratio of potassium hydroxide and potash weight ratio 1:2:2, add and the water of 50 degrees Celsius of the weight such as mixed material, flood 18 hours.
(4) material after the dipping in step 3 is put into micro-wave oven, carbonization-activation 7 minutes under the microwave irradiation power of 450W.
(5) adopt the hydrochloric acid of 1.5 moles every liter under 85 degrees Celsius, to boil 40 minutes material after the activation in step 4, more neutral in rinsing in pure water, then under 130 degrees Celsius, dry 10 hours.
(6) drying material in step 6 is ground, and adopt 150 orders, 200 orders and 250 object sieves to sieve three grades of fineness active carbons of acquisition, (in 150 orders, 200 orders and 250 orders order) is mixed to form final products by them according to the ratio of weight ratio 1:3:1.Owing to adopting multistage mixed structure herein, the product that obtains has better level and density, therefore has better absorption property and service life.
According to State Standard of the People's Republic of China GB/T12496.8-1999 and GB/T12496.10-1999, the prepared activated carbon-iodine adsorptive value of the present invention is 1341 milligrams every gram, and methylene blue adsorption value is 173 milliliters every gram.
Those skilled in the art can make and replacing or modification content of the present invention according to content disclosed by the invention and the art technology of grasping; but these replacements or modification should not be considered as departing from the present invention's design, and these replacements or modification are all in the claimed interest field of the present invention.
Claims (5)
1. utilize pomelo peel, waste of flax, walnut shell to prepare a method for active carbon, comprise the steps:
(1) choose pomelo peel, waste of flax, walnut shell and mix in proportion, at the temperature of 115 degrees Celsius, dry 18 hours;
(2) mixture after step 1 is dried is crushed to particle diameter 1.6-1.8mm left and right, obtains feed particles;
(3) by the feed particles in step 2 according to mixing in proportion to obtain mixed material with potassium hydroxide and potash, add and the water of 50 degrees Celsius of the weight such as mixed material, flood 18 hours;
(4) material after the dipping in step 3 is put into micro-wave oven, preferably, carbonization-activation 7 minutes under the microwave irradiation power of 400-450W.
(5) adopt the hydrochloric acid of 1.5 moles every liter under 85 degrees Celsius, to boil 40 minutes material after the activation in step 4, more neutral in rinsing in pure water, then under 130 degrees Celsius, dry 10 hours.
(6) drying material in step 5 is ground, and adopt the sieve of different meshes to sieve three grades of fineness active carbons of acquisition, they are mixed to form to final products in proportion.
2. the method for preparing active carbon according to claim 1, is characterized in that: choose pomelo peel, waste of flax, walnut shell in 1:2:1 or the mixing of 1:2:2 ratio.
3. the method for preparing active carbon according to claim 1, is characterized in that: the part by weight of step 3 Raw particle and potassium hydroxide and potash is 1:2:1 or 1:2:2.
4. the method for preparing active carbon according to claim 1, is characterized in that: in step 6, different meshes is 160 orders, 200 orders and 240 orders, and three grades of fineness active carbon weight ratios are 1:3:2.
5. the method for preparing active carbon according to claim 1, is characterized in that: in step 6, different meshes is 150 orders, 200 orders and 250 orders, and three grades of fineness active carbon weight ratios are 1:3:1.
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| CN201310495709.9A CN103785356B (en) | 2013-10-21 | 2013-10-21 | A kind of pomelo peel, waste of flax, walnut shell prepare the method for active carbon |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106824076A (en) * | 2017-02-23 | 2017-06-13 | 江苏省环境科学研究院 | A kind of shaddock peel activated carbon and its application |
| CN107555635A (en) * | 2017-10-13 | 2018-01-09 | 陈桂芳 | A kind of water purification installation for kitchen use |
| CN109133054A (en) * | 2018-11-05 | 2019-01-04 | 武汉大学 | A kind of mixed base activated carbon from activated sludge and preparation method thereof |
| CN115970649A (en) * | 2023-03-20 | 2023-04-18 | 四川省冶勘设计集团生态环境工程有限公司 | Citrus biochar and preparation method and application thereof |
| CN115970650A (en) * | 2023-03-20 | 2023-04-18 | 四川省冶勘设计集团生态环境工程有限公司 | Composite biochar and preparation method and application thereof |
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| EP0747321A2 (en) * | 1995-06-06 | 1996-12-11 | Mitsubishi Chemical Corporation | Granulated active carbon and process for its production |
| CN101643208A (en) * | 2009-01-16 | 2010-02-10 | 徐克文 | Composite biological activated carbon and rapid preparation method thereof |
| CN102249228A (en) * | 2011-06-14 | 2011-11-23 | 江苏技术师范学院 | Method for preparing activated carbon from pinecone |
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| EP0747321A2 (en) * | 1995-06-06 | 1996-12-11 | Mitsubishi Chemical Corporation | Granulated active carbon and process for its production |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106824076A (en) * | 2017-02-23 | 2017-06-13 | 江苏省环境科学研究院 | A kind of shaddock peel activated carbon and its application |
| CN106824076B (en) * | 2017-02-23 | 2019-08-09 | 江苏省环境科学研究院 | A kind of shaddock peel activated carbon and its application |
| CN107555635A (en) * | 2017-10-13 | 2018-01-09 | 陈桂芳 | A kind of water purification installation for kitchen use |
| CN109133054A (en) * | 2018-11-05 | 2019-01-04 | 武汉大学 | A kind of mixed base activated carbon from activated sludge and preparation method thereof |
| CN115970649A (en) * | 2023-03-20 | 2023-04-18 | 四川省冶勘设计集团生态环境工程有限公司 | Citrus biochar and preparation method and application thereof |
| CN115970650A (en) * | 2023-03-20 | 2023-04-18 | 四川省冶勘设计集团生态环境工程有限公司 | Composite biochar and preparation method and application thereof |
| CN115970649B (en) * | 2023-03-20 | 2023-05-12 | 四川省冶勘设计集团生态环境工程有限公司 | Citrus biochar as well as preparation method and application thereof |
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| CN103785356B (en) | 2015-09-23 |
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Effective date of registration: 20170725 Address after: Licheng Town East Street Liyang city 213300 Jiangsu city of Changzhou province No. 182 Patentee after: Liyang Technology Development Center Address before: Li Town of Liyang City, Jiangsu province 213300 Changzhou City Dongmen Street No. 67 Patentee before: LIYANG ZHEDA ACADEMIA RESEARCH SERVICE CENTER CO., LTD. |