CN104671273A - Method for producing drinking water treatment agent polyaluminum chloride from hydrogen chloride waste gas and aluminum salt water waste liquid generated from anthraquinone synthesizing production - Google Patents
Method for producing drinking water treatment agent polyaluminum chloride from hydrogen chloride waste gas and aluminum salt water waste liquid generated from anthraquinone synthesizing production Download PDFInfo
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- CN104671273A CN104671273A CN201310619039.7A CN201310619039A CN104671273A CN 104671273 A CN104671273 A CN 104671273A CN 201310619039 A CN201310619039 A CN 201310619039A CN 104671273 A CN104671273 A CN 104671273A
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- hydrochloric acid
- calcium aluminate
- hydrogen chloride
- chloride
- polyaluminum chloride
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Abstract
The invention relates to a method for producing drinking water treatment agent polyaluminum chloride from hydrogen chloride waste gas and aluminum salt water waste liquid generated from anthraquinone synthesizing production. The method comprises the following steps: (a) absorbing hydrogen chloride gas by adopting a membrane type absorber, wherein the hydrogen chloride gas becomes hydrochloric acid after the hydrogen chloride gas encounters water; (b) detecting the concentration of the hydrochloric acid in the membrane type absorber by adopting a concentration detector; (c) when the concentration of the hydrochloric acid reaches 50-60%mol/L, pouring the hydrochloric acid in the membrane type absorber into an aluminum salt water solution with the acidity of 10%, then, adding calcium aluminate powder, of which the mass percent of calcium aluminate is 40%, stirring while heating, and enabling aluminum salt water to react with the hydrochloric acid and the calcium aluminate powder, so as to produce polyaluminum chloride; (d) removing unreacted calcium aluminate powder through adsorption and decolorization treatment; (e) evaporating a polyaluminum chloride solution, so as to leave polyaluminum chloride solid; (f) crushing the polyaluminum chloride solid in a crusher, so as to obtain polyaluminum chloride powder. The method is not only environment-friendly, but also can generate a huge economic benefit.
Description
Technical field
The present invention relates to a kind of method hydrogen chloride emission produced in the production of synthesis anthraquinone and aluminium waste brine solution being generated drinking water treatment agent polymerize aluminum chloride, belong to chemical field.
Background technology
Conventional synthesis anthraquinone process obtains through reaction with this several raw material of phthalic anhydride, aluminum chloride, benzene and sulfuric acid, simple process flow is as follows: phthalic anhydride and benzene condensation under Catalyzed by Anhydrous Aluminium Chloride, generate benzoylbenzoic acid aluminium double salts (BB acid), obtain benzoylbenzoic acid through hydrolysis, acidifying, then be that dewatering agent dehydration closed-loop obtains finished product with oleum.Wherein the first step reaction generates benzoylbenzoic acid aluminium double salts (BB acid) and hydrogen chloride gas and these two kinds of byproducts of aluminium saline fluid, the former is waste gas, the latter is waste water, usually need that these two kinds of byproducts are carried out sewage disposal to discharge again, but still there is very large pollution to environment, if these two kinds of byproducts can be turned waste into wealth, be not only conducive to environmental protection, save the fund input of sewage disposal, huge economic interests can also be brought.
Summary of the invention
The object of the invention is the defect overcoming prior art existence, a kind of method synthesizing during anthraquinone is produced hydrogen chloride emission and the aluminium waste brine solution generation drinking water treatment agent polymerize aluminum chloride produced is provided.
The technical solution adopted for the present invention to solve the technical problems is: a kind of method hydrogen chloride emission produced in the production of synthesis anthraquinone and aluminium waste brine solution being generated drinking water treatment agent polymerize aluminum chloride, step is as follows: a, employing membrance-type absorber absorbing hydrogen chloride gas, and hydrogen chloride gas becomes hydrochloric acid after meeting water; B, employing concentration detector detect the concentration of hydrochloric acid in membrance-type absorber; C, when concentration of hydrochloric acid reaches 50% ~ 60%mol/L, hydrochloric acid in membrance-type absorber being poured into acidity is in the aluminum saline solution of 10%, the mass percentage adding calcium aluminate is again the calcium aluminate powder of 40%, heat up and stir, when temperature reaches 120 DEG C, aluminium salt solution and hydrochloric acid and calcium aluminate powder react and generate polymerize aluminum chloride; D, the calcium aluminate powder having neither part nor lot in reaction to be removed by adsorption bleaching process; E, evaporated by polymeric aluminum chlorides solution, the mass percentage leaving polymerize aluminum chloride is the polymerize aluminum chloride solid of 28% ~ 30%; F, polymerize aluminum chloride solid is put into pulverizer be ground into 80 ~ 100 object polyaluminium aluminium powder forms.
Described calcium aluminate powder is 350 orders and through the porous calcium aluminate powder of sintering processes.
Beneficial effect of the present invention: the hydrogen chloride emission produced in being produced by synthesis anthraquinone and aluminium waste brine solution are generated as drinking water treatment agent polymerize aluminum chloride, not only environmental protection, also save the fund input of sewage disposal.
Embodiment
The hydrogen chloride emission produced in being produced by synthesis anthraquinone and aluminium waste brine solution generate a method for drinking water treatment agent polymerize aluminum chloride, and step is as follows: a, employing membrance-type absorber absorbing hydrogen chloride gas, and hydrogen chloride gas becomes hydrochloric acid after meeting water; B, employing concentration detector detect the concentration of hydrochloric acid in membrance-type absorber; C, when concentration of hydrochloric acid reaches 50% ~ 60%mol/L, hydrochloric acid in membrance-type absorber is poured in the aluminum saline solution of acidity 10%, the mass percentage adding calcium aluminate is again the calcium aluminate powder of 40%, heat up and stir, when temperature reaches 120 DEG C, aluminium salt solution and hydrochloric acid and calcium aluminate powder react and generate polymerize aluminum chloride; D, the calcium aluminate powder having neither part nor lot in reaction to be removed by adsorption bleaching process; E, evaporated by polymeric aluminum chlorides solution, the mass percentage leaving polymerize aluminum chloride is the polymerize aluminum chloride solid of 28% ~ 30%; F, polymerize aluminum chloride solid is put into pulverizer be ground into 80 ~ 100 object polyaluminium aluminium powder forms.
Preferred version: described calcium aluminate powder is 350 orders and through the porous calcium aluminate powder of sintering processes.Should be appreciated that specific embodiment described above only for explaining the present invention, being not intended to limit the present invention.Still be among protection scope of the present invention by spirit institute's apparent change of extending out of the present invention or change.
Claims (2)
1. the hydrogen chloride emission produced in being produced by synthesis anthraquinone and aluminium waste brine solution generate the method for drinking water treatment agent polymerize aluminum chloride, it is characterized in that step is as follows: a, employing membrance-type absorber absorbing hydrogen chloride gas, hydrogen chloride gas becomes hydrochloric acid after meeting water; B, employing concentration detector detect the concentration of hydrochloric acid in membrance-type absorber; C, when concentration of hydrochloric acid reaches 50% ~ 60%mol/L, hydrochloric acid in membrance-type absorber being poured into acidity is in the aluminum saline solution of 10%, the mass percentage adding calcium aluminate is again the calcium aluminate powder of 40%, heat up and stir, when temperature reaches 120 DEG C, aluminium salt solution and hydrochloric acid and calcium aluminate powder react and generate polymerize aluminum chloride; D, the calcium aluminate powder having neither part nor lot in reaction to be removed by adsorption bleaching process; E, evaporated by polymeric aluminum chlorides solution, the mass percentage leaving polymerize aluminum chloride is the polymerize aluminum chloride solid of 28% ~ 30%; F, polymerize aluminum chloride solid is put into pulverizer be ground into 80 ~ 100 object polyaluminium aluminium powder forms.
2. according to claim 1 a kind of will synthesis anthraquinone produce in the hydrogen chloride emission that produces and aluminium waste brine solution generate the method for drinking water treatment agent polymerize aluminum chloride, it is characterized in that: described calcium aluminate powder is 350 orders and through the porous calcium aluminate powder of sintering processes.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310619039.7A CN104671273A (en) | 2013-11-28 | 2013-11-28 | Method for producing drinking water treatment agent polyaluminum chloride from hydrogen chloride waste gas and aluminum salt water waste liquid generated from anthraquinone synthesizing production |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310619039.7A CN104671273A (en) | 2013-11-28 | 2013-11-28 | Method for producing drinking water treatment agent polyaluminum chloride from hydrogen chloride waste gas and aluminum salt water waste liquid generated from anthraquinone synthesizing production |
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| CN104671273A true CN104671273A (en) | 2015-06-03 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105417563A (en) * | 2015-12-10 | 2016-03-23 | 建德市环保科技创新创业中心有限公司 | Method for preparing poly-aluminum chloride from waste aluminum salt liquid discharged in production process of essence and flavor |
| CN105836865A (en) * | 2016-06-04 | 2016-08-10 | 江阴市长江化工有限公司 | Process for preparing poly aluminum chloride |
| CN106044818A (en) * | 2016-06-04 | 2016-10-26 | 江阴市长江化工有限公司 | Preparation technology of polyaluminum chloride |
-
2013
- 2013-11-28 CN CN201310619039.7A patent/CN104671273A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105417563A (en) * | 2015-12-10 | 2016-03-23 | 建德市环保科技创新创业中心有限公司 | Method for preparing poly-aluminum chloride from waste aluminum salt liquid discharged in production process of essence and flavor |
| CN105836865A (en) * | 2016-06-04 | 2016-08-10 | 江阴市长江化工有限公司 | Process for preparing poly aluminum chloride |
| CN106044818A (en) * | 2016-06-04 | 2016-10-26 | 江阴市长江化工有限公司 | Preparation technology of polyaluminum chloride |
| CN106044818B (en) * | 2016-06-04 | 2018-01-16 | 江阴市长江化工有限公司 | The preparation technology of aluminium polychloride |
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Application publication date: 20150603 |