CN1140449C - Mocrowave radiation process of producing active carbon with waste tobacco stalk - Google Patents
Mocrowave radiation process of producing active carbon with waste tobacco stalk Download PDFInfo
- Publication number
- CN1140449C CN1140449C CNB021132704A CN02113270A CN1140449C CN 1140449 C CN1140449 C CN 1140449C CN B021132704 A CNB021132704 A CN B021132704A CN 02113270 A CN02113270 A CN 02113270A CN 1140449 C CN1140449 C CN 1140449C
- Authority
- CN
- China
- Prior art keywords
- microwave radiation
- active carbon
- solid waste
- raw material
- tobacco rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Carbon And Carbon Compounds (AREA)
Abstract
The present invention relates to a method for manufacturing active carbon by radiating pipestem solid waste through microwaves, which belongs to the fields of active carbon manufacture and microwave chemistry. The present invention comprises steps: pipestem solid waste used as the raw material is crushed, mixed with and soaked in a zinc chloride water solution, heated in microwave radiation, washed with acid, dried, crushed and screened to obtain the active carbon product. The present invention has the advantages of short operation time of microwave radiation, high heating speed, even heating, low energy consumption, low cost, etc.; the main quality index, namely the methylene blue decolorization force of the active carbon as the product, is higher than the standard of first grade products in China.
Description
(1) technical field: microwave chemical field
(2) background technology: along with expanding economy, China is also increasing to the demand of gac, and the development prospect of gac is boundless.Each waterworks in the whole nation, sewage work, purified water factories, pharmaceutical factory, chemical plant, food factory, Citric Acid Plant, starch factory, solvent factory, vinylon plant, fuel factory, restaurant family etc. all need to finish the technological processs such as filtration, absorption, separation or decolouring of product separately with high grade activated carbon.Although Activated Carbon Production has had the history of last 100 years, but because in traditional process for preparing activated carbon, heating all is the outside from raw material, from outward appearance to inner essence carry out, therefore need through the long process time, the technological process that just can finish preheating-drying-charing-activation four-stage is to form micropore.Production practice for several years shows: traditional Activated Carbon Production mode exists that energy consumption height, labour intensity are big, operational condition is poor, unstable product quality, can't carry out the obstacle that continuous production etc. is difficult to cross over, and " waste water,waste gas and industrial residue " that produces in the traditional mode of production process, cause pollution, cause reality domestic, that the many countries in the South East Asia and the whole world can not found the factory because traditional activated carbon process is seriously polluted environment.Therefore it is imperative to develop efficient, energy-conservation, free of contamination novel absorbent charcoal manufacturing process.
The applicant is in 931146937.2 the patent in the patent No., the method of a kind of " manufacturing powdered activated carbon with microwave radiation method " is disclosed, this method is with wood chip and phosphoric acid or liquor zinci chloridi hybrid infusion, with carrying out pickling, oven dry, pulverizing and screening after the microwave radiation, obtain gac again, this method is raw material with the wood chip, cost of material is higher, add that this raw material is is cost with the deforestation resource, it is not extensive to originate, and amount is little; This method can't be carried out suitability for industrialized production, has limited the popularization of this method.In technological processs such as dipping, pickling, oven dry, used processing condition only are suitable for wood chip.
(3) summary of the invention:
1. goal of the invention: with the tobacco rod solid waste is raw material, used and be different from wood chip, coconut husks etc. are processing condition such as the dipping, pickling, oven dry of raw material, finish with microwave radiation and to give heat, drying, charing, activation four-stage, the main quality index one Yamamoto Methylene Blue ZF decolorizing ability of resulting product gac meets or exceeds country-level standard.
2. Fig. 1 is a process flow sheet of the present invention.The tobacco rod solid waste after crushed, is carried out hybrid infusion with solder(ing)acid as raw material, sends into and carries out carry out microwave radiation heating in the microwave radiation device, obtains activated carbon product again after pickling, oven dry, pulverizing and screening.
Processing condition:
(1) raw material tobacco rod solid waste pulverizing length is 1-15mm;
(2) be that 98% technical grade zinc chloride adds water to be mixed with concentration expressed in percentage by weight be 50% solder(ing)acid with purity;
(3) mass ratio of raw material tobacco rod and solder(ing)acid is 1: 3.5～5 dipping time 8-10 hours during hybrid infusion;
(4) power input of microwave radiation is for adjustable continuously;
(5) adopting percentage concentration is that 36% technical grade concentrated hydrochloric acid adds water and is mixed with 10% aqueous hydrochloric acid and carries out 5～10 hours pickling;
(6) when rinsing was finished, pH value reached 7;
(7) bake out temperature is 100～120 ℃, 5～10 hours time;
(8) material after the oven dry reaches-200 orders through being crushed to granularity;
(9) smoke processing system adopts vacuum suction device, and cleaning apparatus and raw material retrieving arrangement can carry out the adjusting of gas part in the microwave radiation device.
3. compare advantage and the positively effect that has with known technology:
(1) the quality height of activated carbon product, decolorizing ability is strong, and the Yamamoto Methylene Blue ZF decolorizing ability has surpassed country-level product standard;
(2) can will give in the microwave radiation process heat, drying, charing, activation four-stage carry out continuously, the operating time is short, product cost is low;
Advantages such as (3) the microwave radiation power input is adjustable continuously, and it is fast and even to have rate of heating, and energy consumption is low, and the time is short.
(4) Fig. 1 is a process flow sheet of the present invention
(5) specific implementation method:
Embodiment 1: flooded 10 hours by 1: 3.5 mixed with 50% liquor zinci chloridi after the tobacco rod solid waste is crushed to 10mm, the power of packing into is radiation 9min in the microwave radiation device of 850W, taking out the back, to adopt concentration be 10% hydrochloric acid soln pickling 5 hours, again through rinsing, the pH value reaches 7, oven dry is 8 hours in baking oven, and oven temperature is 120 ℃, is crushed to below-200 orders again.Obtaining main quality index-methylenum coeruleum decolorizing ability is the activated carbon product of 17ml/0.1g, (country-level standard is 12ml/0.1g).
Embodiment 2:
Flooded 8 hours by 1: 4 mixed with 50% liquor zinci chloridi after being crushed to the tobacco rod solid waste about 10mm, the power of packing into is radiation 5min in the microwave radiation device of 5kw, taking out the back, to adopt concentration be 10% hydrochloric acid soln pickling 5 hours, again through rinsing, make the pH value reach 7, oven dry is 8 hours in baking oven, and oven temperature is 100 ℃, is crushed to below-200 orders again.Activated carbon product is analyzed, and main quality index-the methylenum coeruleum decolorizing ability is 16ml/0.1g.
Claims (1)
1. microwave radiation tobacco rod solid waste is made the method for powdered carbon, the tobacco rod solid waste after crushed with the liquor zinci chloridi hybrid infusion, send into again and carry out microwave radiation in the microwave radiation device, material after the radiation is through pickling, oven dry, pulverizing and screening, it is characterized in that: used processing condition are as follows:
(1) the pulverizing length of raw material tobacco rod solid waste is 1～15mm;
(2) be that 98% technical grade zinc chloride adds water to be mixed with concentration expressed in percentage by weight be 50% solder(ing)acid with purity;
(3) mass ratio of raw material tobacco rod and solder(ing)acid is 1: 3.5～5 during hybrid infusion, dipping time 8-10 hour;
(4) power input of microwave radiation is for adjustable continuously;
(5) adopting percentage concentration is that 36% technical grade concentrated hydrochloric acid adds water and is mixed with 10% aqueous hydrochloric acid and carries out 5～10 hours pickling;
(6) when rinsing was finished, pH value reached 7;
(7) bake out temperature is 100～120 ℃, 5～10 hours time;
(8) material after the oven dry reaches-200 orders through being crushed to granularity;
(9) smoke processing system adopts vacuum suction device, and cleaning apparatus and raw material retrieving arrangement can carry out the adjusting of gas part in the microwave radiation device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021132704A CN1140449C (en) | 2002-01-21 | 2002-01-21 | Mocrowave radiation process of producing active carbon with waste tobacco stalk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021132704A CN1140449C (en) | 2002-01-21 | 2002-01-21 | Mocrowave radiation process of producing active carbon with waste tobacco stalk |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1362359A CN1362359A (en) | 2002-08-07 |
| CN1140449C true CN1140449C (en) | 2004-03-03 |
Family
ID=4742543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021132704A Expired - Fee Related CN1140449C (en) | 2002-01-21 | 2002-01-21 | Mocrowave radiation process of producing active carbon with waste tobacco stalk |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1140449C (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1292985C (en) * | 2005-02-28 | 2007-01-03 | 昆明理工大学 | Method for producing active carbon with high specific surface area |
| CN1298624C (en) * | 2005-02-28 | 2007-02-07 | 昆明理工大学 | Method for preparing activated carbon by waste tobacco stalk treated by physical method |
| CN100336721C (en) * | 2005-08-15 | 2007-09-12 | 昆明理工大学 | Super active carbon preparation method |
| CN100384723C (en) * | 2005-09-05 | 2008-04-30 | 昆明理工大学 | Method for utilizing purple stem boneset |
| CN100396607C (en) * | 2006-03-22 | 2008-06-25 | 楚雄烟叶复烤有限责任公司 | Method and device for producing tobacco stalk active carbon |
| JP2016505481A (en) | 2012-11-16 | 2016-02-25 | ポリテクニカ ポズナンスカ | Production of activated carbon from tobacco leaves by simultaneous carbonization and self-activation and the activated carbon obtained thereby |
| CN109911895B (en) * | 2019-02-25 | 2023-01-31 | 合肥学院 | Preparation method of tobacco-based modified activated carbon |
-
2002
- 2002-01-21 CN CNB021132704A patent/CN1140449C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1362359A (en) | 2002-08-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107115843A (en) | A kind of preparation method and applications for coming from peanut shell modified activated carbon | |
| CN101407832B (en) | Method for producing chitin, calcium citrate and protein powder | |
| CN107758660A (en) | A kind of method that bagasse matrix activated carbon is prepared using zinc chloride as activator | |
| CN100482587C (en) | Method of preparing activated carbon from corn straw | |
| CN103320486B (en) | Method for producing chondroitin sulfate with coproduction of hydrolyzed collagen by employing fish cartilage | |
| CN1140449C (en) | Mocrowave radiation process of producing active carbon with waste tobacco stalk | |
| CN104087326A (en) | Method for preparing biochar by taking organic solid wastes of agriculture and forestry as raw materials in wet thermal cracking manner | |
| CN105948040B (en) | A kind of bamboo wood fused salt is pyrolyzed resource utilization method | |
| CN102000552A (en) | Novel heavy metal adsorbent mainly prepared from shrimp shells and preparation method thereof | |
| CN104326471A (en) | Method for preparing active carbon from licorice waste residue | |
| CN103396384B (en) | Adsorption process for removing low content water from tetrahydrofuran-methanol mixed solvent during production of statin drugs | |
| CN104629062B (en) | Extracting method of fulvic acid in a kind of lignite | |
| CN102872801B (en) | Composite adsorption material for removing magnesium ions from natural water and preparation method for adsorption material | |
| CN103708453B (en) | A kind of method of rice husk co-producing active carbon and silicon composite fertilizer | |
| CN104762419A (en) | Method for preparing xylooligosaccharide from corncobs through microwave-assisted hydrothermal treatment | |
| CN104841409A (en) | Regeneration method for waste active carbon in itaconic acid decoloring step | |
| CN102491363B (en) | Device and method for synthesizing zeolite molecular sieves by solid waste materials | |
| CN104229794A (en) | Method for preparing activated carbon with corn stalks | |
| CN102774834A (en) | Method for preparing vinyl acetate supporter activated carbon from bamboo | |
| CN1038246C (en) | Manufacturing powdered activated carbon with microwave radiation method | |
| CN106046195B (en) | The purification process of araban in a kind of citrus can processing alkali process water | |
| CN108773863A (en) | A kind of preparation method of natural water purification agent | |
| CN103420371A (en) | Technological method for preparing reed activated carbon from potassium silicate as activator | |
| CN111644159B (en) | Magnetic adsorbent based on modified eggshell and preparation method and application thereof | |
| CN101143817A (en) | Method for producing salicylic acid by refining salicylic acid solution |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |