CN1318516A - Preparation and use of modified liquid aluminium polychloride - Google Patents
Preparation and use of modified liquid aluminium polychloride Download PDFInfo
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- CN1318516A CN1318516A CN 00110341 CN00110341A CN1318516A CN 1318516 A CN1318516 A CN 1318516A CN 00110341 CN00110341 CN 00110341 CN 00110341 A CN00110341 A CN 00110341A CN 1318516 A CN1318516 A CN 1318516A
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- China
- Prior art keywords
- waste
- water
- aluminium polychloride
- modified liquid
- sulfuric acid
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- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
Modified liquid aluminium polychloride, also named PACS, has increased sulfate radical dentate in aluminium polychloride and its used as efficient cheap wide-spectrum water purifying agent superior to aluminium polychloride. It is yellow brown emulsion prepared with waste alkali liquid and waste sulfuric acid liquid exhausted by aluminium material plant as raw materials and through compounding and complexing with solid aluminium polychloride or aluminium trichloride. This production process produces no any pollutant. Modified liquid aluminium polychloride is mainly used in flocculation treatment of industry water and waste water, such as oily waste water, emulsified oil containing waste water, waste water from textile printing, beer production, tanning, etc.
Description
Core of the present invention is NaAlO
2, Al
2(SO
4)
3, H
2SO
4With polymerize aluminum chloride be that raw material reaction generates and to contain SO
2- 4Polymerize aluminum chloride be referred to as modified liquid aluminium polychloride (PACS).Wherein main raw material contains aluminum ions waste lye and sulfuric acid waste from the discharging of the oxidation workshop of aluminum profile extrusion factory.Family surplus the aluminum profile extrusion factory 200 of the whole nation, annual a large amount of aluminiferous waste lyes of discharging and spent acid solution, contaminate environment is wasted resource again.If can utilize these waste lyes and spent acid solution to be better than PAC, have the characteristic of changing rejected material to useful resource Sustainable development with polymerize aluminum chloride interworking production water purification agent its stability of PACS and flocculating effect.This product is suitable for purifying various trade effluents.
Produce in the prior art field of this product in China at present, mainly with Al (OH)
3, HCL, H
2SO
4And Na
2CO
3Industrial goods are this product of raw material production, and temperature of reaction needs 110 ℃, and heating 5-7h can produce the obnoxious flavour contaminate environment, and the cost height, is unfavorable for promoting the use of.Developing a kind of modified liquid aluminium polychloride at the existing problem that exists, is very necessary to adapt to Industrial Wastewater Treatment.
In view of the existing in prior technology problem, the objective of the invention is to utilize the waste lye of aluminum profile extrusion factory discharging, contain NaOH:40-80g/L, contain Al 〉=9g/L; Sulfuric acid waste contains H
2SO
4: 150-200g/L, 1 contains aluminium 10-15g/L.Solid polyaluminium chloride is industrial goods, Al
2O
3Content 〉=27%, or use AlCl
3Replace its Al
2O
3Content 〉=21%.Because the concentration of waste lye and spent acid solution changes, so the feed ratio of raw material is a value range, as water: waste lye: sulfuric acid waste: solid polyaluminium chloride=1: (0.4-1.2): (0.6-2.0): (0.50-0.80), concrete ratio is with the content physical and chemical index of pH, basicity, aluminum oxide and the sulfate radical of control product.
Modified liquid aluminium polychloride of the present invention claims that again poly-sulphur aluminum chloride (PACS) is tawny emulsion, its physics and chemistry fat mark: relative density (20 ℃) 〉=1.17g/cm
3Alumina content 〉=5 0%; Basicity 40.0-70.0%; Water insoluble matter content≤1.0%; 1% pH value of aqueous solution 3.5-5.0; Sulfate radical content≤18.0%.The production method of modified liquid aluminium polychloride of the present invention (PACS), raw material are that the aluminum profile extrusion discharging contains aluminum ions waste lye, sulfuric acid waste and solid polyaluminium chloride or aluminum chloride.Wherein waste lye contains sodium hydroxide 40-80g/L, contains aluminium 〉=9g/L; Sulfuric acid waste sulfur acid 150-200g/L contains aluminium 10-25g/L.Solid polyaluminium chloride or aluminum chloride are industrial goods (alumina content 〉=27% or 〉=21%).The feed ratio of its raw material of the present invention calculates the charging capacity of various raw materials with the content of pH, basicity, aluminum oxide and sulfate radical of control product.The feed ratio of raw material is a water: waste lye: sulfuric acid waste: solid polyaluminium chloride=1: (0.4-1.2): (0.6-0.2): (0.5-0.8).The feed ratio of pressing above-mentioned raw materials is to enamel reaction still (1.5m
3) add the tap water of some amount.Under stirring state, add the amount of the being waste lye of half amount approximately, pour sulfuric acid waste then gradually into, make the white precipitate dissolving of its generation, when pH is 1.8-3.0, just stop to add sulfuric acid waste, this solution is water white polyaluminium sulfate, but generates precipitation unstable easily the decomposition, and reduces flocculating effect.If there is not suitable water addition ratio example, can't generate water white polyaluminium sulfate (PAS) solution.For improving stability and flocculating effect, add solid polyaluminium chloride (PAC) and regulate the pH value, make its basicity at 40.0-70.0%, the promptly poly-sulphur aluminum chloride (PACS) of modified liquid aluminium polychloride is made in PAS and PAC copolymerization.Be tawny emulsion, after the static slaking, be divided into two-layerly that the upper strata is a brown liquid, lower floor is a light yellow precipitate.Stir during use, be diluted to the use liquid of 1%-5%, be applicable to and handle oily(waste)water, emulsifiable oil waste water, printing and dyeing, beer, process hides, papermaking, pharmacy, food wastewater and fluorine-containing, phosphorus waste water etc.Dosage 0.001%-0.5%, applicable pH range 6-9.
Modified liquid aluminium polychloride provided by the present invention is of many uses, and this product full scale production process need not heat, and does not have refuse to produce, non-environmental-pollution, and facility investment is few.Production operation is simple, is raw material with the waste, and is with low cost, and PACS will get well than the flocculating effect of PAC, has distinct economic and environmental benefit.
Specific embodiments of the invention can further specify the method for making and the purposes of product of the present invention.Example 1: waste lye contains NaOH 53.3g/L, AL
3+27.7g/L sulfuric acid waste contains H
2SO
4180.9g/L, AL
3+16.6g/L.In reactor, add 150kg water, pour the 100kg waste lye under the agitation condition into, add the 140kg sulfuric acid waste more gradually.Continue to stir after 30 minutes, add solid PAC140Kg again and stirred 1 hour, placed 24 hours, promptly get product 680kg, with every barrel of 25kg of plastic tank splendid attire or 50kg.The relative density of product (20 ℃) 1.20g/Cm
3, Al
2O
38.3%, basicity 58%, SO
4 2-3.8%.Example 2: waste lye contains NaOH 43.2g/L, Al
3+8.5g/L.Sulfuric acid waste contains H
2SO
4195Kg/LAl
3+12g/l.Order of addition(of ingredients) and operational condition are with example 1.Feed ratio is a water: waste lye: sulfuric acid waste: PAC (Gu)=300kg: 315kg: 252kg: 220kg.Product 1087kg, relative density (20 ℃) 1.19g/Cm
3, Al
2O
36.7%, basicity 52%, SO
4 2-4.5%.Example 3: waste lye contains NaOH 67g/L, Al
3+38.5g/L sulfuric acid waste contains H
2SO
4165g/L, AL
3+12g/L.Order of addition(of ingredients) and operational condition are with example 1.Feed ratio is a water: waste lye: sulfuric acid waste: PAC (Gu)=300kg: 170Kg: 498kg: 175kg.Product 1143kg, relative density (20 ℃) 1.18g/Cm
3, Al
2O
35.9%, basicity 58%, SO
4 2-7.2%.
It is as follows to use product of the present invention that various wastewater is handled example: example 4: the oily(waste)water of handling Dalian Locomotive Vehicle Factory
The add-on of flocculation agent is with Al
2O
3Metering.Example 5: treatment of dyeing and printing
Example 6: Pharmaceutical Wastewater Treatment (water technology, 2000,26 (1), 53-55)
Example 7: processing meat processing combine waste water (environment protection, 1998, (9), 18-20)
Example 8: handle Dalian Huarun Brewery Co., Ltd's beer waste water
Example 9: handle fluoride waste
| Flocculation agent | Add-on (mg/L) | PH oil (mg/L) SS (mg/L) COD (mg/L) before handling | Handle back pH oil (mg/L) SS (mg/L) COD (mg/L) |
| PACS PAC | ???10 ???10 | 8.8 105 217 158 is the same | 8.2?????3????????30???????22 8.3?????5????????38???????30 |
| Flocculation agent | Kind of waste water | Add-on (g/L) | PH colourity (doubly) SS (mg/L) COD (mg/L) before handling | Handle back pH colourity (doubly) SSmg/L COD (mg/L) |
| PACS PAC PACS PAC | Black black Lan Selanse | ????0.3 ????0.3 ????0.3 ????0.3 | 7.3 156 520 304 the same 7.8 170 540 320 is the same | 6.5????3???????10?????100 6.5????5???????14?????112 6.7????5????????9??????97 6.7????8???????13?????108 |
| Flocculation agent | Add-on (mg/L) | PH SS (mg/L) COD (mg/L) before handling | Handle back pH SS (mg/L) COD (mg/L) |
| PACS PAC | ?300 ?300 | 7.3 1,560 2940 is the same | 6.1???140????????506 6.2???152????????548 |
| Flocculation agent | Add-on (mg/L) | PH SS (mg/L) turbidity (degree) COD (mg/L) before handling | Handle back pH SS (mg/L) turbidity (degree) COD (mg/L) |
| PACS PAC | ????200 ????200 | 7.1 346 327 1476 is the same | 7.0????52????????90???????150 6.9????38????????83???????147 |
| Flocculation agent | Add-on (mg/L) | PH SS (mg/L) COD (mg/L) before handling | Handle back pH SS (mg/L) COD (mg/L) |
| PACS PAC | ???50 ???50 | 7.5 187 1220 is the same | ?7.4?????59??????385 ?7.4?????66??????398 |
Dalian shows limited-liability company's fluoride waste greatly, and pH is 9.5, F-concentration 60mg/L, and when the PACS dosage was 200mg/L, F-concentration was 9mg/L in the processing back water outlet, reaches emission standard.Example 10: handle washing composition (LAS) waste water
| Flocculation agent | Add-on (mg/L) | PH SS (mg/L) COD (mg/L) LAS (mg/L) before handling | Handle back pH SS (mg/L) COD (mg/L) LAS (mg/L) |
| PACS PAC | ??100 ??100 | 7.0 55 890 584 is the same | 6.9????26????????97?????????16 6.9????30????????89?????????17 |
Claims (5)
1, a kind of modified liquid aluminium polychloride claims that again poly-sulphur aluminum chloride (PACS) is tawny emulsion, it is characterized in that physical and chemical index: relative density, (20 ℃) 〉=1.17g/cm
3Alumina content 〉=5.0%; Basicity 40.0-70.0%; Water insoluble matter content≤1.0%; 1% pH value of aqueous solution 3.5-5.0; Sulfate radical content≤18.0%.
2, the production method of the described modified liquid aluminium polychloride of a kind of preparation claim 1 (PACS), raw material are that the aluminum profile extrusion discharging contains aluminum ions waste lye, sulfuric acid waste and solid polyaluminium chloride or aluminum chloride.Wherein waste lye contains sodium hydroxide 40-80g/L, contains aluminium 〉=9g/L; Sulfuric acid waste sulfur acid 150-200 g/L contains aluminium 10-25g/L.Solid polyaluminium chloride or aluminum chloride are industrial goods (alumina content 〉=27% or 〉=21%).
3, the production method of modified liquid aluminium polychloride according to claim 2; The feed ratio that it is characterized in that raw material calculates the charging capacity of various raw materials with the content of pH value, basicity, aluminum oxide and sulfate radical of control product.The feed ratio of raw material is a water: waste lye: sulfuric acid waste: solid polyaluminium chloride=1: (0.4-1.2): (0.6-0.2): (0.5-0.8).
4, the production method of modified liquid aluminium polychloride according to claim 2; It is characterized in that, under the enamel reaction still stirring state, add water (tap water or well water) earlier, pour waste lye again into by the described feed ratio of claim 3.Slowly add sulfuric acid waste then, guarantee that the white precipitate that is produced dissolves, control pH value is 1.8-3.0, stirs after 30 minutes, and this moment, solution was water white transparency.Add solid polyaluminium chloride again, continue to stir 1 hour, put into plastic tank.Every plastic tank abounds with product 25kg or 50kg, and place and carried out slaking in 24 hours, just be tawny emulsion product.
5, the production method of modified liquid aluminium polychloride according to claim 2; It is characterized in that the liquid (diluent) that uses of handling trade effluent is 1%-5%, dosage 0.001%-0.5%, applicable pH value scope 6-9, SS removes out rate 〉=90%, and COD removes out rate 60%-90%.Handle trade effluent and comprise oily(waste)water, emulsifiable oil waste water, beer, pharmacy, food, printing and dyeing, papermaking, process hides, waste water such as fluorine-containing, phosphorous.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001103415A CN1140454C (en) | 2000-04-17 | 2000-04-17 | Preparation and use of modified liquid aluminium polychloride |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001103415A CN1140454C (en) | 2000-04-17 | 2000-04-17 | Preparation and use of modified liquid aluminium polychloride |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1318516A true CN1318516A (en) | 2001-10-24 |
| CN1140454C CN1140454C (en) | 2004-03-03 |
Family
ID=4580338
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB001103415A Expired - Fee Related CN1140454C (en) | 2000-04-17 | 2000-04-17 | Preparation and use of modified liquid aluminium polychloride |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1310839C (en) * | 2004-06-07 | 2007-04-18 | 黄建邺 | Preparing method for inorganic polymer flocculating aluminium |
| CN104743593A (en) * | 2013-12-31 | 2015-07-01 | 重庆蓝洁广顺净水材料有限公司 | Solid polyaluminium chloride production system |
| CN106673040A (en) * | 2016-12-19 | 2017-05-17 | 天津利安隆新材料股份有限公司 | Method for recycling polyaluminum chloride by utilizing alchlor wastewater for compounding triazines ultraviolet absorber |
| CN108455642A (en) * | 2017-12-28 | 2018-08-28 | 江苏永葆环保科技有限公司 | A method of it is prepared without slag PAC using efficiently emulsification shear agitation technology |
-
2000
- 2000-04-17 CN CNB001103415A patent/CN1140454C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1310839C (en) * | 2004-06-07 | 2007-04-18 | 黄建邺 | Preparing method for inorganic polymer flocculating aluminium |
| CN104743593A (en) * | 2013-12-31 | 2015-07-01 | 重庆蓝洁广顺净水材料有限公司 | Solid polyaluminium chloride production system |
| CN104743593B (en) * | 2013-12-31 | 2017-10-20 | 重庆蓝洁广顺净水材料有限公司 | Solid polyaluminium chloride process units |
| CN106673040A (en) * | 2016-12-19 | 2017-05-17 | 天津利安隆新材料股份有限公司 | Method for recycling polyaluminum chloride by utilizing alchlor wastewater for compounding triazines ultraviolet absorber |
| CN108455642A (en) * | 2017-12-28 | 2018-08-28 | 江苏永葆环保科技有限公司 | A method of it is prepared without slag PAC using efficiently emulsification shear agitation technology |
| CN108455642B (en) * | 2017-12-28 | 2022-01-14 | 江苏永葆环保科技有限公司 | Method for preparing slag-free PAC (polyaluminium chloride) by utilizing efficient emulsification shear stirring technology |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1140454C (en) | 2004-03-03 |
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