CN103739496A - Purifying method by activated charcoal columns - Google Patents
Purifying method by activated charcoal columns Download PDFInfo
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- CN103739496A CN103739496A CN201310745129.0A CN201310745129A CN103739496A CN 103739496 A CN103739496 A CN 103739496A CN 201310745129 A CN201310745129 A CN 201310745129A CN 103739496 A CN103739496 A CN 103739496A
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- compound
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- activated charcoal
- activated carbon
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/48—Separation; Purification; Stabilisation; Use of additives
- C07C67/56—Separation; Purification; Stabilisation; Use of additives by solid-liquid treatment; by chemisorption
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D15/00—Separating processes involving the treatment of liquids with solid sorbents; Apparatus therefor
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treatment Of Liquids With Adsorbents In General (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The invention discloses a purifying method by activated charcoal columns. The method comprises the following steps: material liquor to be purified is fed to the activated charcoal columns filled with powdery activated charcoal as filler from the bottom; through a liquid dividing plate at the lower ends of the activated charcoal columns, purified liquor passes through a plurality of activated charcoal columns connected in series under the condition that the temperature is 10-80 DEG C, the pressure is 0-0.05Mpa and the flow rate is 0.1-1.5cm/min; the liquor flows out from the top of the last activated charcoal column, and is filtered by a second-level filter to obtain qualified purified liquid. The method disclosed by the invention guarantees that materials are fully contacted with activated charcoal, so that the problem of channeling, plugging and higher column pressure caused by the conventional method (feeding form the top of the activated charcoal columns and discharging from the bottom of the activated charcoal columns) can be avoided. The method is safe to operate, high in purifying efficiency and suitable for industrialized production.
Description
Technical field
The present invention relates to a kind of method of utilizing impurity in novel activated carbon column purification of liquid material.
Background technology
Gac is the great porousness adsorbent of specific surface area, has very strong decolouring and adsorptive power.Can absorbed portion or remove the impurity in product completely, improve food, the compound crystal purity such as medicine intermediate, improve the stability of product, improve appearance color.Gac has been widely used in the purifying fields such as foodstuff production, medicine intermediate, and concrete has:
The decolouring β-amylose of [carbohydrate produce in purification and decoloration] starch saccharificating liquid is produced enzyme process and acid hydrolyzation, and the liquid glucose that acid hydrolyzation is produced contains colorific material hydroxymethylfurfural, adds 1.2% powdered carbon and can remove hydroxymethylfurfural 81% in liquid glucose.Gac outside absorption coloring matter, can also in attached some inorganic salt, reduce the ash oontent in syrup.
The wine base that the purification of [decoloration and deodorization of drinks] wine spirit is used in preparation, medicinal liquor, fruit wine, tonic wine mostly mostly is alcohol.Need carry out purification process to alcohol, with gac, can adsorb the smell that in alcohol, various impurity presents and can adsorb and remove a small amount of pigment and the part potato spirit that remain in alcohol.
[food oils refining] U.S. Ka Er hilllock company adopts granulated active carbon to process vegetables oil (soybean oil, Semen Maydis oil, peanut oil, sesame oil, vegetable seed wet goods), can make oily storage tolerance, odorless, tasteless, color moderate, refining effective especially to soybean oil.
During the purified water of [other application] drink industry water, by activated carbon filtration, can remove chlorine residue, absorb pleasant impression, remove the pollution substance in water.
At present, existingly by the pure method of gac, can be summarized as and mainly contain two kinds:
(1). in solution to be purified, add gac, utilize simple and mechanical stirring to carry out purifying adsorption bleaching, can obtain qualified refined solution after removing by filter gac.The method is simple to operate, but the method exists the defect of the utilization ratio efficiency of gac low (kg refined solution/kg gac); This method can only be removed trace or a small amount of impurity in refined solution in addition; Further in use the method, gac is poor for the adsorption selectivity of product and impurity, causes the loss of product larger, and especially, for the higher product of attached value, the method is inapplicable.
(2). gac is dressed up to activated carbon column in filler mode, by material to be purified from activated carbon column bottom feed, by collect qualified purifying substance after activated carbon column purifying at top.The method absorbs field at the industrial purifying that is mainly used in gas, for liquid material, utilize the purifying decolouring of powdered active carbon to have no report, its chief reason and difficult point are: because powdered active carbon particle is thinner, cause that activated carbon column easily stops up, post presses higher; In purge process, be prone to channeling, gac can not fully be contacted with material, cause the problems such as purifying production efficiency is low.
Summary of the invention
The object of this invention is to provide a kind of activated carbon column purification process, the above-mentioned defect existing to overcome prior art.A kind of novel activated carbon column purification process is provided.
Method of the present invention, comprises the steps:
Material solution to be purified is entered from bottom and be filled with the activated carbon column that powdered active carbon is filler, through the separating liquid plate of activated carbon column lower end, under the condition that is 0.1～1.5cm/min at 10～80 ℃, 0～0.05Mpa and flow velocity, refined solution is through too much root series connection activated carbon column, from last root activated carbon column top, flow out, after secondary filter filters, obtain qualified refined solution;
When each root activated carbon column, impurity is inhaled when saturated, switched to second pillar charging, and according to pillar, flow out finished fluid from first of new replacing filler, carry out by that analogy cyclical operation;
The preferred temperature of the present invention is 50～60 ℃;
The pressure drop of whole pillar, △ P1=0.1～0.3 △ P2;
The weight concentration of described material solution to be purified is 10～60%;
The preferred flow velocity of the present invention is 0.5～0.8cm/min, makes >98% activated carbon granule not flow out from pillar top under this flow velocity, guarantees that gac can be in anti-muddy state simultaneously.And the <2% activated carbon granule flowing out from pillar top can be crossed elimination by secondary filter;
Described separating liquid plate, the fluid that can effectively distribute, avoids fluid in post, to form channeling, and then reduces purification efficiency.
Method of the present invention, makes activated carbon column saturated by velamen impurity absorption, and being flowed out in post by impurity displacement desorption gradually of adsorption production maximum, guarantees minimum being adsorbed of product, makes gac obtain the most efficient utilization ratio.
Concrete, described material solution to be purified is containing more than one the solution in the solution of compound shown in the solution of compound shown in the solution just like the compound shown in I formula, II formula or III formula;
Impurity is wherein compound P1, compound P2, compound P3, compound P4, compound P5 or compound P6;
Method of the present invention, to guarantee that material fully contacts with gac, can avoid the caused channel of traditional method (from activated carbon column top fed, at activated carbon column bottom discharge), and obstruction and post are pressed higher problem.This method operational safety, purification efficiency is high, and suitability for industrialized is produced.
Embodiment
Below in conjunction with specific embodiment, the present invention is described further:
Embodiment 1
In stainless steel pillar, adding size is 400 object powdered active carbons, temperature in post is controlled in to 50 ℃, pressure is 0.05Mpa, the compound Iso amylacetate solution to be purified that preparation weight concentration is 30%, controlling material feeding speed is 0.5cm/min, from pillar bottom feed, until feed liquid from pillar top out, collect qualified feed liquid.
Described weight concentration be 30% Iso amylacetate solution to be purified for containing (I) compound solution, impurity is wherein P1, P2, P3.
Embodiment 2
In stainless steel pillar, adding size is 400 object powdered active carbons, temperature in post is controlled in to 50 ℃, pressure is 0Mpa(gauge pressure), the compound solution to be purified that preparation weight concentration is 60%, controlling material feeding speed is 0.2cm/min, from pillar bottom feed, until feed liquid from pillar top out, collect qualified feed liquid.
Described weight concentration be 60% Iso amylacetate solution to be purified for containing (II) compound solution, impurity is wherein P3, P4, P5.
Embodiment 3
In stainless steel pillar, adding size is 200 object powdered active carbons, temperature in post is controlled in to 80 ℃, pressure is 2Mpa(gauge pressure), compound concentration is 30% compound solution to be purified, and controlling material feeding speed is 0.4cm/min, from pillar bottom feed, until feed liquid from pillar top out, collect qualified feed liquid.
Described weight concentration be 30% Iso amylacetate solution to be purified for containing (III) compound solution, impurity is wherein P1, P6.
Claims (5)
1. activated carbon column purification process, it is characterized in that, comprise the steps: material solution to be purified to enter from bottom and be filled with the activated carbon column that powdered active carbon is filler, through the separating liquid plate of activated carbon column lower end, under the condition that is 0.1～1.5cm/min at 10～80 ℃, 0～0.05Mpa and flow velocity, refined solution, through too much root series connection activated carbon column, flows out from last root activated carbon column top, after secondary filter filters, obtain qualified refined solution.
2. method according to claim 1, is characterized in that, when each root activated carbon column, impurity is inhaled when saturated, switches to second pillar charging, and according to pillar, flows out finished fluid from first of new replacing filler, carries out by that analogy cyclical operation.
3. method according to claim 1, is characterized in that, temperature is 50～60 ℃; The pressure drop of whole pillar, △ P1=0.1～0.3 △ P2; The weight concentration of described material solution to be purified is 10～60%.
4. method according to claim 3, is characterized in that, flow velocity is 0.5～0.8cm/min, and the activated carbon granule flowing out from pillar top is crossed elimination by secondary filter.
5. according to the method described in claim 1～4 any one, it is characterized in that, described material solution to be purified is containing more than one the solution in the solution of compound shown in the solution just like compound shown in the solution of the compound shown in I formula, II formula or III formula;
Impurity is wherein compound P1, compound P2, compound P3, compound P4, compound P5 or compound P6;
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310745129.0A CN103739496B (en) | 2013-12-30 | 2013-12-30 | Activated carbon column purification process |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310745129.0A CN103739496B (en) | 2013-12-30 | 2013-12-30 | Activated carbon column purification process |
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| CN103739496A true CN103739496A (en) | 2014-04-23 |
| CN103739496B CN103739496B (en) | 2016-03-09 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017206554A (en) * | 2017-08-08 | 2017-11-24 | 日本ゼオン株式会社 | Solution and mixture |
| CN114470868A (en) * | 2022-02-22 | 2022-05-13 | 瑞昌市渝瑞实业有限公司 | Method and system for separating allantoin from yam mucus and method for preparing skin lotion |
| CN114699800A (en) * | 2022-03-23 | 2022-07-05 | 国家能源集团新疆能源有限责任公司 | Method for purifying Si69 stock solution |
Citations (4)
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| EP0504498A1 (en) * | 1991-02-19 | 1992-09-23 | Kessler & Luch GmbH | Process and device for the regeneration of the washing liquid of air scrubbers |
| CN1130157A (en) * | 1995-03-02 | 1996-09-04 | 唐燕 | Economic technology for treating pulping "black liquor" of medium and small paper mill |
| WO2000039631A1 (en) * | 1998-12-24 | 2000-07-06 | Rolic Ag | Liquid crystal display with improved viewing angle |
| CN102471689A (en) * | 2009-07-09 | 2012-05-23 | 罗利克有限公司 | Ester group containing liquid crystals for optical or electro optical devices |
-
2013
- 2013-12-30 CN CN201310745129.0A patent/CN103739496B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0504498A1 (en) * | 1991-02-19 | 1992-09-23 | Kessler & Luch GmbH | Process and device for the regeneration of the washing liquid of air scrubbers |
| CN1130157A (en) * | 1995-03-02 | 1996-09-04 | 唐燕 | Economic technology for treating pulping "black liquor" of medium and small paper mill |
| WO2000039631A1 (en) * | 1998-12-24 | 2000-07-06 | Rolic Ag | Liquid crystal display with improved viewing angle |
| CN102471689A (en) * | 2009-07-09 | 2012-05-23 | 罗利克有限公司 | Ester group containing liquid crystals for optical or electro optical devices |
Non-Patent Citations (2)
| Title |
|---|
| 梅东海: "活性炭在钨湿法冶金中的应用", 《中国钨业》, no. 2, 28 February 1989 (1989-02-28) * |
| 肖敏等: "活性炭吸附法处理印染废水的研究", 《辽宁化工》, vol. 38, no. 8, 31 August 2009 (2009-08-31), pages 537 - 539 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017206554A (en) * | 2017-08-08 | 2017-11-24 | 日本ゼオン株式会社 | Solution and mixture |
| CN114470868A (en) * | 2022-02-22 | 2022-05-13 | 瑞昌市渝瑞实业有限公司 | Method and system for separating allantoin from yam mucus and method for preparing skin lotion |
| CN114699800A (en) * | 2022-03-23 | 2022-07-05 | 国家能源集团新疆能源有限责任公司 | Method for purifying Si69 stock solution |
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| CN103739496B (en) | 2016-03-09 |
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Inventor after: Sun Songliang Inventor after: Li Xiujuan Inventor after: Ren Xukang Inventor before: Sun Songliang |
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