CN103265423B - Resourceful treatment method for industrial wastes containing acetic anhydride, zinc bromide and the like - Google Patents
Resourceful treatment method for industrial wastes containing acetic anhydride, zinc bromide and the like Download PDFInfo
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- CN103265423B CN103265423B CN201310212510.0A CN201310212510A CN103265423B CN 103265423 B CN103265423 B CN 103265423B CN 201310212510 A CN201310212510 A CN 201310212510A CN 103265423 B CN103265423 B CN 103265423B
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- zinc bromide
- acetic acid
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Abstract
The invention provides a resourceful treatment method for industrial wastes containing acetic acid, zinc bromide and the like. The method comprises the following steps of: heating to 118 DEG C so that acetic acid is vaporized at a high-temperature constant boiling point, liquefying with a condenser and then collecting the vaporized acetic acid; adding water and vitamins floating on the surface of the water, and forming and separating out vitamin E oil; adding hydrogen bromide so that the pH value is between 1.5 and 2.5, concentrating to remove water, centrifuging and separating to obtain a rough zinc bromide product; calcining the rough zinc bromide product, adding water to dissolve the zinc bromide, heating the solution, adding active carbon, performing absorptive decolorization, filtering, evaporating, centrifuging, dehydrating, drying, and thus obtaining a high-purity zinc bromide product. By adopting the method, useful components such as the acetic acid, the zinc bromide and Ve oil in the industrial wastes can be separated to reduce the discharge quantity of the industrial wastes, so that environmental protection is favorable; and the useful components can be reused as resources, so that the resources are saved, resourceful usage is realized, and the industrial wastes can be recycled.
Description
Technical field
The present invention relates to a kind of recycling treatment process of trade waste, be specially a kind of recycling processing method containing trade wastes such as aceticanhydride, zinc bromide, VITAMIN.
Background technology
Trade waste, the general all more complicated of its component, usually containing multiple useful, can the material recycled of resource utilization, if do not processed, by wherein useful Component seperation out, be used as resource, both increased the quantity of waste, more waste resource, run in the opposite direction with the theory of recycling economy, Sustainable development.As, a pharmaceutical and chemical enterprises collects the waste deposited, find through composition detection, aceticanhydride, the zinc bromide of 38%, the Ve oil (vitamin E oil) of 1.5% up to 60% is contained in this waste, and part organic detritus, if do not carry out recycling treatment to it, and it is banked up as " three wastes " or discharge simply, certainly waste valuable resource, and increase volume and the quantity of " three wastes ", cause huge waste.How by aceticanhydride wherein, zinc bromide, Ve wet goods Component seperation out, be used as a kind of resource, being one needs the urgent problem solved.
Summary of the invention
For above-mentioned deficiency of the prior art, main purpose of the present invention is to provide a kind of recycling processing method containing trade wastes such as aceticanhydride, zinc bromide, VITAMIN, aceticanhydride in this kind of trade waste, zinc bromide, Ve wet goods useful component are separated, obtaining the higher component of the purity such as aceticanhydride, zinc bromide, VITAMIN also can as resource reutilization.
Technical scheme of the present invention: the recycling processing method containing the trade waste such as aceticanhydride and zinc bromide, is characterized in that, the recycling processing method containing the trade waste such as aceticanhydride and zinc bromide, is characterized in that comprising the steps:
(1) added in reactor by trade waste and heat, temperature reaches 118 DEG C, makes acetic acid at high temperature be vaporized evaporation, collects by the acetic acid evaporated;
(2) add water, the quality of water is 15%-35% of industrial waste amount, coordinates and stirs to mix, and the material floats of vitamins, on the surface of water, forms vitamin E oil and separates out, Ve oil is separated;
(3) be separated in the trade waste of Ve oil in step (2) and added hydrogen bromide, made Ph value between 1.5-2.5; Then, carry out concentrated to slough moisture, make moisture content lower than 20%, centrifugation obtains zinc bromide crude product;
(4) carry out calcination processing to zinc bromide crude product, temperature is between 240-280 DEG C, and calcination time is 60-120 minutes;
(5) be dissolved in water to the zinc bromide after calcining, then be heated to 65-98 DEG C to solution, in solution, add gac, carry out adsorption bleaching, refilter, carry out evaporation centrifuge dehydration to filtered liquid, drying obtains highly purified zinc bromide product.
Further feature is: when carrying out calcination processing to zinc bromide crude product, zinc bromide crude product is joined in the heating kettle of pot top sealing, the venting port that pot top is arranged is connected with suction unit, and the suction channel of suction unit is passed in absorbing by liquid caustic soda tower, bromizate in zinc high-temperature burning process the acid smog produced and all enter a set of or two cover absorbing by liquid caustic soda towers, after absorbing by liquid caustic soda tower neutralizing treatment, then discharge after the tail gas after absorbing by liquid caustic soda tower neutralizing treatment being entered again clean water tank absorption.
Relative to prior art, the present invention has following beneficial effect:
1, the aceticanhydride in trade waste, zinc bromide, Ve wet goods useful component can be separated by the present invention, obtain the component that the purity such as aceticanhydride, zinc bromide, VITAMIN are higher, reduce the discharge quantity of trade waste, be conducive to environment protection.
2, aceticanhydride, zinc bromide, Ve wet goods useful component are separated, are used again as resource, have saved resource, achieve resource utilization and use, and can recycle.
3, explained hereafter clean environment of the present invention is pollution-free, and waste liquid more than 90% is fully utilized, and can produce considerable economic benefit and social benefit.
Embodiment
Below in conjunction with embodiment, the invention will be further described.
A recycling processing method containing trade wastes such as aceticanhydride, Ve oil and zinc bromides, it comprises the steps:
1, added in reactor by trade waste and heat, usually add in concentration kettle, temperature reaches 118 DEG C, and acetic acid is evaporated under high-temperature constant boiling point, collects by the acetic acid evaporated; Aceticanhydride is exactly the acetic acid of high density, forms acetic acid after aceticanhydride thin up; Aceticanhydride at 118 DEG C of temperature, collects through condenser post liquefaction and obtains acetic acid;
General temperature is no more than 118 DEG C, as reached 120 DEG C, when tank mouth has smog to occur, then shows that acetic acid evaporates, and should stop heating, prevent other components from entering holding tank and affecting the quality of acetic acid.
2, add water, the quality of water is 15%-35% of industrial waste amount, coordinates if desired and stirs to mix, and the material floats of vitamins, on the surface of water, forms Ve oil and separates out, Ve oil is separated; The quality of water can be 15%, 16%, 17%, 18%, 19%, 20%, 21%, 22%, 23%, 24%, 25%, 26%, 27%, 28%, 29%, 30%, 31%, 32%, 33%, 34%, 35% of trade waste quality etc., can meet needs of the present invention;
3, be forwardly separated in the trade waste of Ve oil in second step and added hydrogen bromide, to adjust Ph value, made Ph value between 1.5-2.5; Then, concentrate, to reduce (removal) moisture, make moisture content lower than 20%, then carry out centrifuge dehydration, obtain zinc bromide crude product; Ph value can be 1.8.1.9.2.0,2.1,2.2,2.3,2.4,2.5 etc., can meet needs of the present invention;
4, carry out calcination processing to zinc bromide crude product, temperature is at 240-280 DEG C, and calcination time is generally 60-120 minutes; Due to the organic compound containing multiple many carbochains in zinc bromide crude product, if do not removed by these organic impuritys, significantly can reduce the yield of zinc bromide, and the purity of zinc bromide is difficult to be improved; Through test of many times, spent by high-temperature calcination to 250, by Ve a small amount of in zinc bromide crude product oil and the carbonization of part many carbochains organic compound; And due to the theoretical fusing point of zinc bromide be 394 degree, under the calcining temperature less than 280 DEG C, the basicly stable of its structure can be kept and can not be destroyed, adapting to the needs that zinc bromide is calcined; Calcining temperature can be 240 DEG C, 250 DEG C, 260 DEG C, 270 DEG C, 280 DEG C etc., can meet needs of the present invention; Calcination time can be 60 minutes, 70 minutes, 80 minutes, 90 minutes, 100 minutes, 110 minutes, 120 minutes etc., can meet needs of the present invention.
5, be dissolved in water to the zinc bromide after calcining, amount of water all dissolves with zinc bromide and is as the criterion; Reheat to 65-98 DEG C, in solution, add gac, utilize the strong absorption property of gac to carry out adsorbing to decolour, refilter (can adopt centrifuging), filtered liquid evaporation (can adopt concentration and evaporation), obtains highly purified zinc bromide product.Heating temperature can be 65 DEG C, 68 DEG C, 70 DEG C, 72 DEG C, 75 DEG C, 78 DEG C, 80 DEG C, 82 DEG C, 85 DEG C, 88 DEG C, 90 DEG C, 92 DEG C, 95 DEG C, 98 DEG C etc., can meet needs of the present invention; The add-on of gac, requires according to different decolourings and changes, being as the criterion with the processing requirement reaching decolouring.
Through test of many times, the present invention can reach 35% to the rate of recovery of the zinc bromide in trade waste, can substantially the zinc bromide in mother liquor be reclaimed completely.By reclaiming the acetic acid extracting and obtain 58% to waste liquid gradation, content is more than 90%, and the rate of recovery of zinc bromide is 35%, and content can reach 99%, and pharmacy corporation recycle paid by crude product ve oil, achieve acetic acid, zinc bromide, Ve oil resource utilization reclaim and process; Achieve object of the present invention.
Difficult point of the present invention is the acid smog produced in zinc bromide high-temperature calcination, i.e. contaminate environment, can damage human body again, for this reason in zinc bromide high-temperature burning process, zinc bromide crude product is joined in the heating kettle (as titanium material electric heating pot) of pot top sealing, the venting port that pot top is arranged is connected with suction unit, by the suction function of suction unit (vacuum suction apparatus), and suction channel is passed in absorbing by liquid caustic soda tower, bromizate in zinc high-temperature burning process the acid smog produced and all enter a set of or two cover absorbing by liquid caustic soda towers, after absorbing by liquid caustic soda tower neutralizing treatment, again the tail gas after absorbing by liquid caustic soda tower neutralizing treatment is entered after clean water tank absorbs again and discharge, the requirement of higher emission standard can be met, realize no pollution or low pollution emission.Explained hereafter clean environment of the present invention is pollution-free, and waste liquid more than 90% is fully utilized, the present invention, monthly disposes waste liquid 20 tons, can produce considerable economic benefit and social benefit.
Finally it should be noted that, above embodiment is only in order to illustrate technical scheme of the present invention but not restriction technologies scheme, although applicant's reference preferred embodiment is to invention has been detailed description, those of ordinary skill in the art is to be understood that, those amendments that technical scheme of the present invention is carried out or equivalently to replace, and do not depart from aim and the scope of the technical program, all should be encompassed in the middle of right of the present invention.
Claims (2)
1. contain the recycling processing method of acetic acid and zinc bromide trade waste, it is characterized in that comprising the steps:
(1) added in reactor by trade waste and heat, temperature reaches 118 DEG C, makes acetic acid at high temperature be vaporized evaporation, collects by the acetic acid evaporated;
(2) add water, the quality of water is 15%-35% of industrial waste amount, coordinates and stirs to mix, and the material floats of vitamins, on the surface of water, forms vitamin E oil and separates out, Ve oil is separated;
(3) be separated in the trade waste of Ve oil in step (2) and added hydrogen bromide, made pH value between 1.5-2.5; Then, carry out concentrated to slough moisture, make moisture content lower than 20%, centrifugation obtains zinc bromide crude product;
(4) carry out calcination processing to zinc bromide crude product, temperature is between 240-280 DEG C, and calcination time is 60-120 minutes;
(5) be dissolved in water to the zinc bromide after calcining, then be heated to 65-98 DEG C to solution, in solution, add gac, carry out adsorption bleaching, refilter, carry out evaporation centrifuge dehydration to filtered liquid, drying obtains high purity zinc bromide product.
2. contain the recycling processing method of acetic acid and zinc bromide trade waste according to claim 1, it is characterized in that: when carrying out calcination processing to zinc bromide crude product, zinc bromide crude product is joined in the heating kettle of pot top sealing, the venting port that pot top is arranged is connected with suction unit, and the suction channel of suction unit is passed in absorbing by liquid caustic soda tower, bromizate in zinc high-temperature burning process the acid smog produced and all enter a set of or two cover absorbing by liquid caustic soda towers, after absorbing by liquid caustic soda tower neutralizing treatment, again the tail gas after absorbing by liquid caustic soda tower neutralizing treatment is entered after clean water tank absorbs again and discharge.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310212510.0A CN103265423B (en) | 2013-05-31 | 2013-05-31 | Resourceful treatment method for industrial wastes containing acetic anhydride, zinc bromide and the like |
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| CN201310212510.0A CN103265423B (en) | 2013-05-31 | 2013-05-31 | Resourceful treatment method for industrial wastes containing acetic anhydride, zinc bromide and the like |
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| CN103265423B true CN103265423B (en) | 2015-05-27 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1053974A1 (en) * | 1999-05-17 | 2000-11-22 | Quest International B.V. | Reactions using lewis acids |
| CN1329001A (en) * | 2000-03-09 | 2002-01-02 | 德古萨股份公司 | Method for preparing alpha-tocopherol acetate |
| CN1668533A (en) * | 2002-07-10 | 2005-09-14 | 巴斯福股份公司 | Process for removing water from a mixture containing water and zinc chloride |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2733067B2 (en) * | 1988-09-09 | 1998-03-30 | マナック株式会社 | Method for producing inorganic halogen compound powder |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1053974A1 (en) * | 1999-05-17 | 2000-11-22 | Quest International B.V. | Reactions using lewis acids |
| CN1329001A (en) * | 2000-03-09 | 2002-01-02 | 德古萨股份公司 | Method for preparing alpha-tocopherol acetate |
| CN1668533A (en) * | 2002-07-10 | 2005-09-14 | 巴斯福股份公司 | Process for removing water from a mixture containing water and zinc chloride |
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| CN103265423A (en) | 2013-08-28 |
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