CN104229794A - Method for preparing activated carbon with corn stalks - Google Patents
Method for preparing activated carbon with corn stalks Download PDFInfo
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- CN104229794A CN104229794A CN201410474646.3A CN201410474646A CN104229794A CN 104229794 A CN104229794 A CN 104229794A CN 201410474646 A CN201410474646 A CN 201410474646A CN 104229794 A CN104229794 A CN 104229794A
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- gac
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Abstract
The invention discloses a method for preparing activated carbon with corn stalks. The method comprises the steps as follows: (1) waste material crushing: crushing the corn stalks to such an extent that particle sizes are in a range of 45-50 meshes; (2) drying; (3) dipping: dipping particles in a zinc chloride solution; (4) microwave oven radiation; (5) pickling: immersing the particles in a pickling liquid for pickling; (6) primary rinsing; (7) secondary washing; (8) drying: placing the washed particles in a rotary drying oven for drying to obtain a product, namely, the activated carbon. The method for preparing the activated carbon with the corn stalks has the advantages of simplicity in operation, short production time, stable technological parameter, low cost and the like, agricultural resources are fully utilized, and the sustainable development is realized.
Description
Technical field
The present invention relates to biomass utilization, particularly relate to a kind of method that maize straw prepares gac.
Background technology
Gac is as a kind of excellent sorbent material, and have unique cell structure and surface-active functional group, stable chemical nature, physical strength is high, acidproof, heat-resisting etc., is widely used in environmental protection, chemical industry, food, medicine every field.
Along with worldwide industrial development, environmental pollution is day by day serious, and gac has very outstanding contribution in curbing environmental pollution, can predict, flourish due to industry, the growth of world population, the improvement etc. of living condition, all by stimulating activity charcoal industrial expansion.As the agricultural crop straw of biomass Main Resources because of rich reserves, be convenient to produce and environmental protection, using maize straw as one of starting material making gac, can agricultural resource be made full use of, again Sustainable development.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of method that maize straw prepares gac, the method has simple to operate, production time is short, technical parameter is stable, low cost and other advantages, the activated carbon adsorptive capacity made is strong, making processes is pollution-free, take full advantage of agricultural resource, Sustainable development simultaneously.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: provide a kind of maize straw to prepare the method for gac, comprise following steps:
(1) waste material is pulverized, and the waste material of maize straw is put into pulverizer and pulverizes, obtain the uniform particulate material of globule size; Grinding particle size is 45 ~ 50 orders,
(2) dry, particulate material is put into stoving oven and dries, keep the temperature of stoving oven at 105 DEG C ~ 115 DEG C, drying time is 60min ~ 75 min;
(3) flood, modulation liquor zinci chloridi, immerses liquor zinci chloridi by particulate material, ensures that the proportioning of particulate material and zinc chloride is 1:5.5 ~ 1:7, particulate material is flooded 36 ~ 48 in liquor zinci chloridi during dipping;
(4) microwave oven radiation;
(5) pickling, the particulate material after microwave radiation immerses in pickle solution carries out pickling, and described pickling temperature is 25 ~ 35 DEG C, and pickling time is 20min;
(6) rinsings, carry out water rinse to the particulate material after pickling, and rinse temperature is 10 DEG C, adopt PH be 6.5 clear water carry out;
(7) secondary cleaning, adopt PH be 7 ~ 7.5 deionized water clean, water temperature remains on 15 ~ 20 DEG C;
(8) dry, the particulate material after cleaning is put into rotary furnace drying stove and dries, make Product Activity charcoal, the technical parameter of described stoving oven is: 1.5 circles/min, in-furnace temperature 125 DEG C ~ 150 DEG C, time 5 ~ 8min,
In the present invention's preferred embodiments, in described step 3 in liquor zinci chloridi by weight by zinc chloride 25 parts, 5 parts, aluminum chloride, all the other are water.
In the present invention's preferred embodiments, in described step 4, microwave oven radiation adopts that frequency is 450MHZ ~ 550 MHZ, wavelength is the microwave radiation of 150mm ~ 250mm.
In the present invention's preferred embodiments, in described step 5, pickle solution is dilute hydrochloric acid solution, and the substance withdrawl syndrome of described dilute hydrochloric acid solution is 2.056mol/L.
The invention has the beneficial effects as follows: a kind of maize straw that the present invention points out prepares the method for gac, the method has simple to operate, production time is short, technical parameter is stable, low cost and other advantages, the activated carbon adsorptive capacity made is strong, making processes is pollution-free, take full advantage of agricultural resource, Sustainable development simultaneously.
Embodiment
Be clearly and completely described to the technical scheme in the embodiment of the present invention below, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
The embodiment of the present invention comprises:
Maize straw prepares a method for gac, comprises following steps:
(1) waste material is pulverized, and the waste material of maize straw is put into pulverizer and pulverizes, obtain the uniform particulate material of globule size; Grinding particle size is 45 ~ 50 orders,
(2) dry, particulate material is put into stoving oven and dries, keep the temperature of stoving oven at 105 DEG C ~ 115 DEG C, drying time is 60min ~ 75 min;
(3) flood, modulation liquor zinci chloridi, immerses liquor zinci chloridi by particulate material, ensures that the proportioning of particulate material and zinc chloride is 1:5.5 ~ 1:7, particulate material is flooded 36 ~ 48 in liquor zinci chloridi during dipping;
(4) microwave oven radiation;
(5) pickling, the particulate material after microwave radiation immerses in pickle solution carries out pickling, and described pickling temperature is 25 ~ 35 DEG C, and pickling time is 20min;
(6) rinsings, carry out water rinse to the particulate material after pickling, and rinse temperature is 10 DEG C, adopt PH be 6.5 clear water carry out;
(7) secondary cleaning, adopt PH be 7 ~ 7.5 deionized water clean, water temperature remains on 15 ~ 20 DEG C;
(8) dry, the particulate material after cleaning is put into rotary furnace drying stove and dries, make Product Activity charcoal, the technical parameter of described stoving oven is: 1.5 circles/min, in-furnace temperature 125 DEG C ~ 150 DEG C, time 5 ~ 8min,
Further, in described step 3 in liquor zinci chloridi by weight by zinc chloride 25 parts, 5 parts, aluminum chloride, all the other are water.
Further, in described step 4, microwave oven radiation adopts that frequency is 450MHZ ~ 550 MHZ, wavelength is the microwave radiation of 150mm ~ 250mm.
Further, in described step 5, pickle solution is dilute hydrochloric acid solution, and the substance withdrawl syndrome of described dilute hydrochloric acid solution is 2.056mol/L.
The invention has the beneficial effects as follows: a kind of maize straw that the present invention points out prepares the method for gac, the method has simple to operate, production time is short, technical parameter is stable, low cost and other advantages, the activated carbon adsorptive capacity made is strong, making processes is pollution-free, take full advantage of agricultural resource, Sustainable development simultaneously.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present invention.
Claims (4)
1. maize straw prepares a method for gac, it is characterized in that, comprises following steps:
(1) waste material is pulverized, and the waste material of maize straw is put into pulverizer and pulverizes, obtain the uniform particulate material of globule size; Grinding particle size is 45 ~ 50 orders,
(2) dry, particulate material is put into stoving oven and dries, keep the temperature of stoving oven at 105 DEG C ~ 115 DEG C, drying time is 60min ~ 75 min;
(3) flood, modulation liquor zinci chloridi, immerses liquor zinci chloridi by particulate material, ensures that the proportioning of particulate material and zinc chloride is 1:5.5 ~ 1:7, particulate material is flooded 36 ~ 48 in liquor zinci chloridi during dipping;
(4) microwave oven radiation;
(5) pickling, the particulate material after microwave radiation immerses in pickle solution carries out pickling, and described pickling temperature is 25 ~ 35 DEG C, and pickling time is 20min;
(6) rinsings, carry out water rinse to the particulate material after pickling, and rinse temperature is 10 DEG C, adopt PH be 6.5 clear water carry out;
(7) secondary cleaning, adopt PH be 7 ~ 7.5 deionized water clean, water temperature remains on 15 ~ 20 DEG C;
(8) dry, the particulate material after cleaning is put into rotary furnace drying stove and dries, make Product Activity charcoal, the technical parameter of described stoving oven is: 1.5 circles/min, in-furnace temperature 125 DEG C ~ 150 DEG C, time 5 ~ 8min.
2. maize straw according to claim 1 prepares the method for gac, it is characterized in that, in described step 3 in liquor zinci chloridi by weight by zinc chloride 25 parts, 5 parts, aluminum chloride, all the other are water.
3. maize straw according to claim 1 prepares the method for gac, it is characterized in that, in described step 4, microwave oven radiation adopts that frequency is 450MHZ ~ 550 MHZ, wavelength is the microwave radiation of 150mm ~ 250mm.
4. maize straw according to claim 1 prepares the method for gac, it is characterized in that, in described step 5, pickle solution is dilute hydrochloric acid solution, and the substance withdrawl syndrome of described dilute hydrochloric acid solution is 2.056mol/L.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410474646.3A CN104229794A (en) | 2014-09-18 | 2014-09-18 | Method for preparing activated carbon with corn stalks |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410474646.3A CN104229794A (en) | 2014-09-18 | 2014-09-18 | Method for preparing activated carbon with corn stalks |
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| CN104229794A true CN104229794A (en) | 2014-12-24 |
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| CN201410474646.3A Pending CN104229794A (en) | 2014-09-18 | 2014-09-18 | Method for preparing activated carbon with corn stalks |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106984282A (en) * | 2017-05-04 | 2017-07-28 | 凤台县双利生物科技有限公司 | A kind of preparation method of the magnetic green substance adsorber of sulfydryl lignocellulosic montmorillonite Composite |
| CN107572723A (en) * | 2017-09-28 | 2018-01-12 | 常州大学 | A kind of hydroquinones Waste Water Treatment |
| CN110681363A (en) * | 2019-09-17 | 2020-01-14 | 太原工业学院 | Method for preparing corn straw adsorbent by microwave induced pyrolysis method |
| CN112661230A (en) * | 2020-11-30 | 2021-04-16 | 四川辰恒环保科技有限公司 | Novel composite decoloring agent and application method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1927710A (en) * | 2006-09-28 | 2007-03-14 | 淮阴师范学院 | Method of preparing activated carbon from corn straw |
| CN103936006A (en) * | 2014-04-21 | 2014-07-23 | 北京理工大学 | Method for preparing porous activated carbon material from rice bran |
-
2014
- 2014-09-18 CN CN201410474646.3A patent/CN104229794A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1927710A (en) * | 2006-09-28 | 2007-03-14 | 淮阴师范学院 | Method of preparing activated carbon from corn straw |
| CN103936006A (en) * | 2014-04-21 | 2014-07-23 | 北京理工大学 | Method for preparing porous activated carbon material from rice bran |
Non-Patent Citations (1)
| Title |
|---|
| 蒋卉等: "微波法制玉米秸秆活性炭工艺条件及性能研究", 《林产化学与工业》, vol. 25, no. 4, 31 December 2005 (2005-12-31), pages 91 - 93 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106984282A (en) * | 2017-05-04 | 2017-07-28 | 凤台县双利生物科技有限公司 | A kind of preparation method of the magnetic green substance adsorber of sulfydryl lignocellulosic montmorillonite Composite |
| CN107572723A (en) * | 2017-09-28 | 2018-01-12 | 常州大学 | A kind of hydroquinones Waste Water Treatment |
| CN110681363A (en) * | 2019-09-17 | 2020-01-14 | 太原工业学院 | Method for preparing corn straw adsorbent by microwave induced pyrolysis method |
| CN112661230A (en) * | 2020-11-30 | 2021-04-16 | 四川辰恒环保科技有限公司 | Novel composite decoloring agent and application method thereof |
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Application publication date: 20141224 |