CN87103009A - The production method of poly aluminum chloride compound - Google Patents
The production method of poly aluminum chloride compound Download PDFInfo
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- CN87103009A CN87103009A CN 87103009 CN87103009A CN87103009A CN 87103009 A CN87103009 A CN 87103009A CN 87103009 CN87103009 CN 87103009 CN 87103009 A CN87103009 A CN 87103009A CN 87103009 A CN87103009 A CN 87103009A
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- aluminum chloride
- chloride compound
- poly aluminum
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Abstract
The present invention relates to a kind of production method of water purification agent poly aluminum chloride compound, it is characterized in that with bauxite powder behind acid-leaching reaction again modulation insulation join poly-ly, promptly get liquid poly aluminum chloride compound product, if the drying processing just can get the compound aluminum chloride product of solid again.Its advantage is that raw material is extensive, and technology is simple, and production cost is aluminium ash bits products
Description
Improvement-bauxite acidleach the modulation method that the present invention relates to a kind of purifying agent for polluted water process for producing polymerized aluminium chloride is produced poly aluminum chloride compound, is suitable for the chemical plant and produces.
Technique known: both at home and abroad aluminium ashes that adopt of producing of polymerize aluminum chloride are considered acid pasting, aluminum soluble salt neutralisations such as aluminium hydroxide, aluminum chloride to be worth doing more.Using aluminium ash bits production shortcoming is that raw material is subjected to limitation, quality instability, foreign matter content is big and complicated component.The clear 57-71818 of day disclosure special permission communique introduces to be modulated into behind the aluminium hydroxide that contains the decolorizing carbon acid group this aluminium hydroxide and hydrochloric acid or hydrochloric acid and vitriolic mixing acid neutralized with carbonic acid alkali earlier with aluminum soluble salt again and produces, and the shortcoming of this method is that energy consumption is big, material cost is high.It is that raw material is produced poly aluminium chloride that this area has two places to introduce with bauxite: its technical process of a place is bauxite → pulverizing → roasting → acidleach (twice carry out) → sedimentation (using polyacrylamide) → modulation (using sodium hydroxide) → liquid aluminium polychloride product.Its shortcoming is that process cycle is long, alkali consumption is big, quality is wayward, production cost is high; Another locate its technology be bauxite → pulverizing → roasting → acidleach (pressurized air stirring) → melt cinder separate the polymerize aluminum chloride product, shortcoming be quality product low, be that aluminium sesquioxide in the product, basicity and PH all do not reach " liquid aluminium polychloride is ordered the product index requirement temporarily ".
Task of the present invention is for overcoming above-mentioned shortcoming, seek a kind of raw material and be easy to get, and cost is low, can make constant product quality, and preparation method is simply produced the method for poly aluminum chloride compound with bauxite.
Task of the present invention is to finish as follows: bauxite → pulverizing → roasting or without the roasting → acidleach → filtration → modulation polymerization first time → second time filtration → liquid poly aluminum chloride compound.It is characterized in that with bauxite (AI
2O
3Content 25%～80%) press the stoichiometric ratio 1.2～2.5 of aluminium/acid with hydrochloric acid or hydrochloric acid and vitriolic mixing acid, at 105 ℃～120 ℃ of temperature, pressurization 0.5～2kg/cm
2Carry out acidleach, leach liquor is incubated 1.5～2 hours at 50 ℃～60 ℃ then with the temperature modulated reaction of light calcium carbonate at 70 ℃～80 ℃, and the equivalence ratio that makes the poly aluminum chloride compound OH/AI that is produced is 0.45～0.8.All the other all adopt prior art and equipment.The bauxite grinding particle size is at 60～80 orders, and whether roasting can be the r-AI that hydrochloric acid and sulfuric acid easily leach according to the content of its active aluminium sesquioxide in ore
2O
3Leaching yield and economic benefit and deciding, 650 ℃～750 ℃ of general maturing temperatures.Leaching time was advisable in 1.5～2 hours.Cross for the first time the recycling as brickmaking of filter residue etc., filtrate modulation affirmation its to react completely be that no carbon dioxide is emitted.For the second time filtering throw out main component is a calcium sulfate, can make byproduct and sell (as acidleach time do not add sulfuric acid then do not need to filter for the second time).After the modulation insulation (filtration), be the poly aluminum chloride compound liquid product of being produced, and further drying is a solid poly aluminum chloride compound product.
Equipment used herein: reactor is that chuck adds the reactor that pressure zone stirs, and filtration can be adopted plate-and-frame filter press or whizzer, also can adopt natural subsidence.
The present invention is when embodiment method that will describe in detail below adopting and Comparative Examples, and technology is simple, cost is low, steady quality, and turbidity removal effect is good.
Embodiment one, and 400 kilograms of hydrochloric acid getting 20% concentration under agitation add bauxite powder (AI in reactor
2O
3, 32% granularity is crossed 60 orders) 150 kilograms be warming up to 110 ℃, pressurization 1kg/cm
2Stir and be cooled to 75 ℃ after 2 hours, under continue stirring, add 128 kilograms of pulpous state light calcium carbonates that are adjusted to 25% concentration in advance, question response fully (no carbon dioxide is emitted) be cooled to 55 ℃ and continue to stir be incubated 2 hours after with reacting liquid filtering, promptly get 500 kilograms of liquid poly aluminum chloride compounds with following component:
AI
2O
3=8.9% CI=14.4% Ca=2.7% basicity=56%
Embodiment two, get concentration and are 20% 220 kilograms of hydrochloric acid and concentration and be 15% sulfuric acid and mix in reactor for 240 kilograms, under agitation with bauxite powder (AI
2O
338% granularity is crossed 60 orders) 150 kilograms of addings, be warming up to 120 ℃, pressurization 1.5kg/cm
2React 2 hours after-filtration, filtrate in reactor, be warming up to again 75 ℃ under agitation slowly addings be adjusted to 100 kilograms of the pulpous state light calcium carbonates of 25% concentration in advance, question response (with embodiment one) fully is cooled to 60 ℃ of continuation stirring insulations 2 hours, sediment separate out then, 500 kilograms of the liquid poly aluminum chloride compounds that must have following component.
AI
2O
3=10% CI=8.6% SO
4=2.3% basicity=72%
Embodiment three, get concentration and are 200 kilograms of sulfuric acid that add concentration 15% of hydrochloric acid of 20% and be mixed in the reactor for 260 kilograms, under agitation add bauxite powder (AI
2O
332% granularity is crossed 60 orders) 160 kilograms, be warming up to 110 ℃, pressurization 1kg/cm
22 hours after-filtration of stirring reaction.Filtrate in reactor, be warming up to again 75 ℃ under agitation slowly addings be adjusted to 75 kilograms of the pulpous state light calcium carbonates of 20% concentration in advance, (with embodiment one) is cooled to 60 ℃ of continuation and stirs insulation 2 hours after reacting completely, filtering separation throw out then promptly gets 500 kilograms of liquid poly aluminum chloride compounds with following component:
AI
2O
3=9.6% CI=7% SO
4=4.2% basicity=60%
Embodiment four, get 400 kilograms of 20% hydrochloric acid in reactor, under agitation with bauxite powder (AI
2O
340% granularity is crossed 60 orders) 150 kilograms add slowly and be warming up to 120 ℃, pressure 1.5kg/cm
2, 2 hours after-filtration of stirring reaction.Filtrate is warming up to 75 ℃ again in reactor, under agitation slowly add 100 kilograms of 25% pulpous state light calcium carbonates, question response fully (with embodiment one) is cooled to 55 ℃ again, continues to stir insulation 2 hours, promptly gets 500 kilograms of liquid poly aluminum chloride compounds with following component:
AI
2O
3=10.45% CI=12.8% Ca=2.4% basicity=62%
The poly aluminum chloride compound that the foregoing description method is produced uses the hydrochloric acid acidleach separately, can make in this product of production to keep 1%～5% solubility chlorination calcium; Use hydrochloric acid and vitriolic mixing acid, can make in this product of production and remain with 0.5%～5% sulfate radical.This product is widely used in the purifying treatment of tap water, process water and the waste water of taking from surface water body, introduces the geographic purification of water quality of calcium deficiency soft water that also is particularly suitable for of calcium ion and handles.
The poly aluminum chloride compound that the current series invention is produced carries out turbidity removal effect and settling velocity contrast with existing commercial like product.
Table one, turbidity removal effect contrasts: stir 2 minutes (first quick and back slow) after water purification agent is splashed into muddy water, left standstill then 5 minutes, get identical graduation upper strata liquid and compare.
Table one
Table two, settling velocity contrast: add same turbidity water respectively in scale marks with 50 milliliters of colorimetric cylinders, after adding the water purification medicament of equivalent more simultaneously respectively colorimetric cylinder turned upside down 10 times (each about 3 seconds) is left standstill and timing then, write down the settling height of flocculent precipitate in the identical graduation.
Table two
You above-described embodiment and contrast table can be found out: the present invention than existing product have that technology is simple, Zhi amount Yi control, power consumption is low, the turbidity removal effect of its product is good, sinking speed is fast.
The poly aluminum chloride compound that Yong this law is produced, particularly can utilize the out of use low-grade bauxite of industrial department (being that alundum (Al2O3) is lower than 40% bauxite) Yi and the gangue boiling furnace slag Zuo Yuan material such as aluminium metallurgy, Yan mill, fire-resistant and cement, so raw material sources are extensive and cost is low.
Claims (3)
1, a kind of production method of water purification agent poly aluminum chloride compound, carry out acidleach with bauxite and mineral acid after, again with lime carbonate modulation polymerization to produce the liquid poly aluminum chloride compound, it is characterized in that:
A, be that 25%～80% bauxite and hydrochloric acid or hydrochloric acid and vitriolic mixing acid carry out acidleach by the stoichiometric ratio 1.2～2.5 of aluminium/acid with aluminium sesquioxide content,
105 ℃～120 ℃ of the temperature of b, acidleach, pressure 0.5～2kg/cm
2, 1.5～2 hours time was advisable,
C, with the modulation of the light calcium carbonate of pulpous state, refining temperature between 70 ℃～80 ℃,
50 ℃～60 ℃ of d, insulation polymerization temperatures, 1.5～2 hours time, making the stoichiometric ratio of its poly aluminum chloride compound product OH/AI after modulation insulation polymerization is 0.45～0.8.
2, method according to claim 1 is characterized in that using separately the hydrochloric acid acidleach, can make to keep 1%～5% solubility chlorination calcium in the poly aluminum chloride compound product that makes.
3, method according to claim 1 is characterized in that using hydrochloric acid and vitriolic mixing acid, can make in the poly aluminum chloride compound product that makes and remain with 0.5%～5% sulfate radical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87103009 CN87103009A (en) | 1987-05-06 | 1987-05-06 | The production method of poly aluminum chloride compound |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87103009 CN87103009A (en) | 1987-05-06 | 1987-05-06 | The production method of poly aluminum chloride compound |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN87103009A true CN87103009A (en) | 1987-09-30 |
Family
ID=4814220
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87103009 Pending CN87103009A (en) | 1987-05-06 | 1987-05-06 | The production method of poly aluminum chloride compound |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1055670C (en) * | 1997-12-11 | 2000-08-23 | 青岛市北海铝制品厂 | Method for producing water purifying agent using powder AD-5 as raw material |
| CN101898775A (en) * | 2010-07-21 | 2010-12-01 | 东营市联成化工有限责任公司 | Method and process for producing polymeric aluminum |
| CN102815735A (en) * | 2012-08-14 | 2012-12-12 | 衡阳市建衡实业有限公司 | New process for directly producing poly aluminum chloride by using bauxite |
| CN104003430A (en) * | 2014-06-17 | 2014-08-27 | 山东三丰集团股份有限公司 | Method for preparing poly aluminium chloride |
| CN105129945A (en) * | 2015-09-07 | 2015-12-09 | 广西师范学院 | Production technology for activated soil product for water treatment |
| CN109292849A (en) * | 2018-11-07 | 2019-02-01 | 张家界贵友环保材料科技有限公司 | A kind of polyaluminium chloride water purification agent and preparation method thereof containing rare earth element |
| CN109336153A (en) * | 2018-12-26 | 2019-02-15 | 河南省福可思环保科技有限公司 | The method for producing polyaluminium chloride from water treatment agent polyaluminium chloride waste residue dechlorination treatment fluid |
| CN111252793A (en) * | 2020-04-01 | 2020-06-09 | 修文县苏达新型环保材料有限公司 | Preparation method of polyaluminum chloride |
| CN114314778A (en) * | 2020-09-30 | 2022-04-12 | 中国科学院过程工程研究所 | Method for producing water purifying agent and white carbon black by roasting-free and reinforced acid leaching coal gangue |
-
1987
- 1987-05-06 CN CN 87103009 patent/CN87103009A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1055670C (en) * | 1997-12-11 | 2000-08-23 | 青岛市北海铝制品厂 | Method for producing water purifying agent using powder AD-5 as raw material |
| CN101898775A (en) * | 2010-07-21 | 2010-12-01 | 东营市联成化工有限责任公司 | Method and process for producing polymeric aluminum |
| CN102815735A (en) * | 2012-08-14 | 2012-12-12 | 衡阳市建衡实业有限公司 | New process for directly producing poly aluminum chloride by using bauxite |
| CN102815735B (en) * | 2012-08-14 | 2015-08-26 | 衡阳市建衡实业有限公司 | A kind of novel process of bauxite direct production poly aluminium chloride |
| CN104003430A (en) * | 2014-06-17 | 2014-08-27 | 山东三丰集团股份有限公司 | Method for preparing poly aluminium chloride |
| CN104003430B (en) * | 2014-06-17 | 2015-09-09 | 山东三丰集团股份有限公司 | A kind of preparation method of polymerize aluminum chloride |
| CN105129945A (en) * | 2015-09-07 | 2015-12-09 | 广西师范学院 | Production technology for activated soil product for water treatment |
| CN109292849A (en) * | 2018-11-07 | 2019-02-01 | 张家界贵友环保材料科技有限公司 | A kind of polyaluminium chloride water purification agent and preparation method thereof containing rare earth element |
| CN109336153A (en) * | 2018-12-26 | 2019-02-15 | 河南省福可思环保科技有限公司 | The method for producing polyaluminium chloride from water treatment agent polyaluminium chloride waste residue dechlorination treatment fluid |
| CN109336153B (en) * | 2018-12-26 | 2021-01-08 | 河南省福可思环保科技有限公司 | Method for preparing polyaluminium chloride from dechlorination treatment liquid of polyaluminium chloride waste residue of water treatment agent |
| CN111252793A (en) * | 2020-04-01 | 2020-06-09 | 修文县苏达新型环保材料有限公司 | Preparation method of polyaluminum chloride |
| CN114314778A (en) * | 2020-09-30 | 2022-04-12 | 中国科学院过程工程研究所 | Method for producing water purifying agent and white carbon black by roasting-free and reinforced acid leaching coal gangue |
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