CN1106766A - Process for production of aluminium polychloride - Google Patents
Process for production of aluminium polychloride Download PDFInfo
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- CN1106766A CN1106766A CN 94111641 CN94111641A CN1106766A CN 1106766 A CN1106766 A CN 1106766A CN 94111641 CN94111641 CN 94111641 CN 94111641 A CN94111641 A CN 94111641A CN 1106766 A CN1106766 A CN 1106766A
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- ammoniacal liquor
- aluminium
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- poly
- sulfate
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Abstract
This invention is a technology for producing aluminium poly chloride. This invention features that (1) aluminium sulphate and ammonia liquor with equivalent ratio of 0.95:1 and both concentrations less than 10% are reacted under normal temp. for 10-15 min,; (2) hydrochloric acid with concentration of 31-36% is added to aluminium hydroxide produced by reaction in (1), then the temp. is maintained at 40-50 deg.C, and aluminium poly chloride is obtained after dehydration and drying; (3) according to ammonium sulphate and slaked lime with equivalent ratio of 1:0.95, the sloed lime is added to ammonium sulphate produced in (1), and the produced ammonia liquor is returned to (1) for reuse.
Description
The present invention relates to a kind of processing method of producing poly aluminium chloride.
Producing the extensive processing method that adopts of poly aluminium chloride at present has: a kind of for being that main raw material is produced with the aluminium ash, its chemical equation is:
The main drawback of this processing method is that the toxicity index that generates product easily surpasses national quality index regulation, poor product quality.Another kind of is that raw material is produced with metallic aluminium (containing the aluminium bits), and its chemical equation is:
The main drawback of this processing method is the material cost height, causes the product cost height, often brings poisonous metal in product into, also has environmental pollution in addition in various degree.
The objective of the invention is to overcome above-mentioned weak point of the prior art and provide a kind of production cost low, good product quality, and can reduce the poly aluminium chloride production technique of environmental pollution.
Purpose of the present invention can reach by following measure:
Production poly aluminium chloride processing method of the present invention is characterized in that:
(1) get Tai-Ace S 150 and ammoniacal liquor, and the equivalent of ammoniacal liquor and Tai-Ace S 150 equivalence ratio be 1: 0.95, with both in concentration all less than 10%, carried out under the normal temperature stirring reaction 10-15 minute, generate aluminum hydroxide precipitate and sulfate of ammoniac, and aluminium hydroxide taken out;
(2) get hydrochloric acid, its concentration is 31%-36%, at normal temperatures in 2 molecular hydrogen aluminum oxide and n(0＜n＜6) individual molecule hydrochloric acid ratio, n presses the basicity value, hydrochloric acid is added in the aluminium hydroxide that reaction generates in (1), need in the reinforced process slowly to stir, reinforced finish insulation in 40 ℃ of-50 ℃ of scopes till becoming transparent Colloidal fluid, be that polymerization generates poly aluminum chloride aqueous solution this moment;
(3) getting sulfide lime, is 1: 0.95 ratio in ammonium sulfate and sulfide lime equivalence ratio, will sulfide lime input (1) in the ammonium sulfate that generates of reaction, at normal temperature, react in the closed container, generate calcium sulfate and ammoniacal liquor, taking-up ammoniacal liquor returns in (1) and recycles.
Purpose of the present invention also can reach by following measure:
The poly aluminum chloride aqueous solution that polymerization in (2) is generated becomes the poly aluminium chloride solid phase prod through dehydrating.
The present invention will now be further detailed embodiment:
The present invention is main raw material with Tai-Ace S 150, and produce poly aluminium chloride by following technical process: (1) gets Tai-Ace S 150 and ammoniacal liquor, and the equivalence ratio of ammoniacal liquor is greater than the Tai-Ace S 150 equivalent and be 1: 0.95, by this conversion, gets ammoniacal liquor 17kg(28 titre), Tai-Ace S 150 5kg(AL
2O
3Contain 16%) dilution is for 15kg, with both stirring reactions 10 minutes at normal temperatures, generates aluminum hydroxide precipitate 20kg(folding over dry material 1.22kg) and sulfate of ammoniac solution 12kg, its reaction equation is:
Aluminium hydroxide is taken out: (2) press basicity 66%, get concentration and be 34% hydrochloric acid 1.64kg, hydrochloric acid uses technical-grade hydrochloric acid, get the aluminium hydroxide 20kg that generates in (1), at normal temperatures hydrochloric acid is added in the aluminium hydroxide, slowly stir while adding, reinforced finish insulation in 40-50 ℃ of scope till becoming transparent Colloidal fluid, be that polymerization generates the poly aluminum chloride aqueous solution product this moment, becomes poly aluminium chloride solid phase prod 2.4kg, its reaction equation through dehydrating:
Polymerization
(3) in order to recycle ammoniacal liquor, get concentration and be 40% sulfide lime 2.5kg, get the sulfate of ammoniac 12kg that reaction generates in (1), both are reacted in the normal temperature closed container, generate calcium sulfate and ammoniacal liquor, so both reclaimed and obtained ammoniacal liquor, with the raw material in (1), obtained a pair product gypsum (calcium sulfate) again, also reduced the discharging of sulfate of ammoniac, its reaction equation is:
The present invention compared with prior art has following advantage:
1. be primary raw material owing to adopting aluminum sulfate, and rationally utilize explained hereafter to obtain to pay a product gypsum, thereby product cost is low;
2. owing to the concentration of each reactant in technical process (1) is reasonable, make AL(OH)3Activity and dispersiveness be not fully exerted, thereby the polyaluminium chloride degree of polymerization of producing high, monomer aluminium content drops to 5% from 30% of existing product monomer aluminium content;
3. owing in technique (3), having reclaimed ammoniacal liquor and having recycled in technique (1), reduce the discharging of sulfate of ammoniac, do not had acid mist in the whole reaction, therefore alleviated the pollution to environment, the effect with protection of the environment.
Claims (2)
1, a kind of poly aluminium chloride producing and manufacturing technique, it is characterized in that: (1) gets Tai-Ace S 150 and ammoniacal liquor, and the equivalent of ammoniacal liquor and Tai-Ace S 150 equivalence ratio are 1: 0.95, with both in concentration all less than 10%, carried out under the normal temperature stirring reaction 10-15 minute, generate aluminum hydroxide precipitate and sulfate of ammoniac, and aluminium hydroxide is taken out.(2) get hydrochloric acid, its concentration is 31%-36%, at normal temperatures in 2 molecular hydrogen aluminum oxide and the individual molecule hydrochloric acid ratio of n (0＜n＜6), n presses the basicity value, hydrochloric acid is added in the aluminium hydroxide that reaction generates in (1), need slowly stir simply 1 in the reinforced process, reinforced finish insulation in 40-50 ℃ of scope till becoming transparent Colloidal fluid, be that polymerization generates poly aluminum chloride aqueous solution this moment.(3) cancellation lime is 1: 0.95 ratio in ammonium sulfate and sulfide lime equivalence ratio, in the sulfate of ammoniac that reaction generates in the sulfide lime input (1), at normal temperature, reacts in the closed container, generates calcium sulfate and ammoniacal liquor, and taking-up ammoniacal liquor returns in (1) and recycles.
2,, it is characterized in that the poly aluminum chloride aqueous solution that polymerization in (2) generates is become the poly aluminium chloride product through dehydrating by the described processing method of claim (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94111641 CN1106766A (en) | 1994-02-08 | 1994-02-08 | Process for production of aluminium polychloride |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94111641 CN1106766A (en) | 1994-02-08 | 1994-02-08 | Process for production of aluminium polychloride |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1106766A true CN1106766A (en) | 1995-08-16 |
Family
ID=5035486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94111641 Pending CN1106766A (en) | 1994-02-08 | 1994-02-08 | Process for production of aluminium polychloride |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1106766A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1062837C (en) * | 1998-07-13 | 2001-03-07 | 彭继增 | Process for producing poly-aluminum chloride and compound poly-iron-aluminum chloride |
| CN101306827B (en) * | 2008-06-11 | 2010-07-28 | 中国石油天然气股份有限公司 | Process for preparing polymerized aluminum by burnt waste slag of sludge |
-
1994
- 1994-02-08 CN CN 94111641 patent/CN1106766A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1062837C (en) * | 1998-07-13 | 2001-03-07 | 彭继增 | Process for producing poly-aluminum chloride and compound poly-iron-aluminum chloride |
| CN101306827B (en) * | 2008-06-11 | 2010-07-28 | 中国石油天然气股份有限公司 | Process for preparing polymerized aluminum by burnt waste slag of sludge |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |