CN1057444A - The preparation method of liquid palymeric aluminium sulfate and application thereof - Google Patents
The preparation method of liquid palymeric aluminium sulfate and application thereof Download PDFInfo
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- CN1057444A CN1057444A CN 91104676 CN91104676A CN1057444A CN 1057444 A CN1057444 A CN 1057444A CN 91104676 CN91104676 CN 91104676 CN 91104676 A CN91104676 A CN 91104676A CN 1057444 A CN1057444 A CN 1057444A
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- aluminiferous
- aluminium
- aluminium sulfate
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Abstract
The present invention is a kind of preparation method and application thereof of liquid palymeric aluminium sulfate, and its chemical general formula is
Description
The present invention relates to a kind of preparation method and application thereof of liquid palymeric aluminium sulfate.
Waste water, sewage and drink water purifying are handled, and use the widest maximum treatment agents to should be Tai-Ace S 150, but the Tai-Ace S 150 poor performance at low temperatures, and often have the higher remaining aluminum compound of concentration in the drinking water quality after handling, therefore progressively substituted by other treatment agents.Polymerize aluminum chloride has been compared its many advantages with Tai-Ace S 150, but polymerize aluminum chloride is for the many water quality of inorganics and algae, and perhaps the water treatment effect of slant acidity is just not very good.Application number is the alkali formula chloro Tai-Ace S 150 of " 89100474 ", this product be used for condensing and flocculate material of aqeous suspension, particularly handle as drinking water quality, the remaining aluminium of the water after handling few especially, but it adopts aluminum oxide or aluminium hydroxide is raw material, production cost is higher, but because the raw material sources problem of product has limited production.
The present invention is directed to the deficiency of prior art, the aluminiferous bauxite mine that utilizes nature to be easy to get comes the synthetic fluid polyaluminium sulfate for raw material.
The present invention fully reacts with aluminiferous bauxite mine and sulphuric acid soln, make aluminum sulfate aqueous solution through solid-liquid separation, then above-mentioned aluminum sulfate aqueous solution and alkaline earth metal compound or ammonia are under agitation carried out polyreaction, material after the polymerization is fully removed the Tai-Ace S 150 of impurity and alkaline-earth metal through solid-liquid separation, promptly obtains liquid palymeric aluminium sulfate.
With aluminiferous bauxite mine prepare aluminum sulfate aqueous solution with following proportioning raw materials for well: aluminiferous bauxite mine sulfuric acid water=1～12 09～13 15～2(weight ratio), bauxite mine aluminum content (Al
2O
3) with about 40% calculating, sulfuric acid is with 98% cubage.The sulfuric acid here can be 98% industrial sulphuric acid, also can be 60～70% dilute sulphuric acid.
Aluminiferous bauxite mine comprises useless alum slurry, bauxitic clay, aluminium ore powder, aluminium hydroxide and coal gangue etc.
For bauxite mine and sulphuric acid soln are fully reacted with the preparation alum liquor, logical steam reaches under 2.5Kg～3Kg its system pressure when reaction, reacts discharging after 6 hours.Cohesion is lumpd for fear of feed concentration is too high, can add the water of proper amt during blowing, carries out solid-liquid separation after treating to cool off slightly, and its filtrate is required alum liquor.General water is regulated its concentration and is contained Al at 5.5%(
2O
3Amount is by weight) more than.
Above-mentioned aluminum sulfate aqueous solution is put into the container that has agitator, under agitation constantly drip alkaline earth metal compound or ammoniacal liquor.And measure pH value at any time, if basicity is controlled at 35～70%, then PH be controlled at 〉=3.5 o'clock, stop to add alkaline earth metal compound, continue reaction about 30 minutes, i.e. discharging is removed impurity and insoluble vitriol through solid-liquid separation, filtrate is liquid palymeric aluminium sulfate.
This alkaline earth metal compound comprises lime carbonate, Calcium hydrogen carbonate, calcium hydroxide, calcium oxide and their mixture, also can use ammoniacal liquor and Tai-Ace S 150 polymerization.
When Tai-Ace S 150 and alkaline earth metal compound or ammonia polyreaction, stirring velocity is controlled to be about 60 rev/mins to well.
The chemical general formula that reacts the liquid palymeric aluminium sulfate of gained through above-mentioned two steps is:
Al
n(OH)
mSO
4(3n-m)/2 or (Al(OH)
mSO
4(3-m)/2)
n, n=8～72; M=12～18; The monomer molecule amount is 124.7～133.8, and m/3n is the basicity of liquid palymeric aluminium sulfate in the formula, and its value is 35～70%, and best values is 40～60%, can select different basicity for use according to the purposes of product.This product is a kind of dark-brown clear solution.
With aluminiferous bauxite mine is the liquid palymeric aluminium sulfate of feedstock production, not only can handle as drink water purifying, industry is useless, the flocculation agent of sewage disposal, also can be used as the sizing agent of paper industry, the reodorant of petroleum chemical industry etc.
Technology of the present invention is simple, and raw material sources are wide, low cost of manufacture.The product that produces with the present invention is a kind of good inorganic polymer flocculant, have applied widely, the particle of wadding a quilt with cotton is big with fixed attention, characteristics such as settling velocity is fast, and when low temperature, it is stable that its effect still keeps.
Accompanying drawing is a process flow sheet of the present invention.
The present invention is described in further detail below in conjunction with embodiment.
Embodiment 1:
By bauxite mine: sulfuric acid: water=1: 0.91: 1.5 is established material.
Come weighing by each composition weight summation 2050Kg charging capacity once.
Weighing: the alum slurry (is measured by analysis and is contained Al
2O
3Amount is 45%) 600Kg,
Sulfuric acid (industrial sulphuric acid of 98% content) 550Kg,
Water (service water) 900Kg,
Earlier the water of 900Kg is dropped in the enamel reactor that 3000 liters have chuck, drop into sulfuric acid successively then, bauxite mine mixes, open steam then and make its heating, when the question response pot inner pressure is raised to 2.5Kg, stop logical steam, reaction is 6 hours under this 2.5Kg～3Kg pressure, i.e. blowing.Add an amount of water dilution during blowing.Treat to carry out press filtration with plate-and-frame filter press after feed liquid is cooled off for some time, (also available certainly whizzer separates.) its slag is discarded, filtrate is alum liquor, and dilute with water makes its concentration adjustment contain Al at 5.5%(
2O
3Amount is by weight) more than.
(contain Al with above-mentioned about 5.5%
2O
3The amount by weight) alum liquor put into the reactor that 5000 liters have agitator and charging opening, turn on agitator, make its stirring velocity more than 60 rev/mins, slowly splash into 450～500kg lime carbonate and calcium oxide in the reactor, at any time use PH test paper (precision test paper 2.7～4.7) to measure, treat that pH value reaches or surpass at 3.5 o'clock, stop to drip lime carbonate and calcium oxide, continue reaction 30 minutes again, stop to stir.
After the polymerization reactant discharging, use the plate-and-frame filter press press filtration, filtrate is liquid palymeric aluminium sulfate product 2600Kg, regulates concentration 5.0%(with Al with 340Kg water
2O
3The content meter) about.Remaining solid phase is that impurity or insoluble vitriol discard.
Product appearance is the dark-brown clear solution, and pH value is 3.5.
Deliver to the laboratory and chemically examine by product quality indicator comprehensively, it the results are shown in Table 1.
Table 1
Numbering quality index result of laboratory test
1 alchlor is (with Al
2O
3Meter) 〉=5.0% 5.5%
2 basicities 40～60% are qualified
3 density 〉=1.15 are qualified
4 PH 3～4 are qualified
5 water-insolubles≤1.0% is qualified
6 heavy metals (in Pb) mg/Kg≤20 are qualified
7 arsenic (in Aa) mg/Kg≤2.5 are qualified
Embodiment 2:
By bauxite mine: sulfuric acid: water=feed intake at 1: 1: 2.
Come weighing by each composition weight summation 2800Kg charging capacity once.
Claim sample: the alum slurry (contains Al
2O
3Weight 45%): 700Kg,
Sulfuric acid (98% is industrial): 700Kg,
Water: 1400Kg.
Concrete processing method and operation steps are with embodiment 1.(summary)
Press present embodiment products obtained therefrom 4040Kg.
The main quality index of testing by analysis with the present embodiment products obtained therefrom is:
Al
2O
3%:5.6%, Fe
2O
3%:017%, water-insoluble≤0.1%,
Arsenic content: meet heavy metal (in Pb): meet.
Embodiment 3:
By bauxite mine: sulfuric acid: water=feed intake at 1: 1.1: 2.2,
Come weighing by each composition weight summation 3000Kg charging capacity once.
Claim sample: the alum slurry (contains Al
2O
345%): 700Kg,
Sulfuric acid (98% is industrial): 800Kg,
Water: 1500Kg,
Concrete processing method and operation steps are with embodiment 1.(summary)
Press present embodiment products obtained therefrom 4290Kg.
The main quality index of testing by analysis with the present embodiment products obtained therefrom is:
Al
2O
3: 5.6%, Fe
2O
3: 0.3%, insolubles≤0.1%,
Arsenic content: meet (being near the mark), heavy metal: meet.
With the liquid palymeric aluminium sulfate of processing method of the present invention preparation in the application of purifying waste water on handling, and with the like product effect comparison.
Table 2 is to compare with polymerize aluminum chloride in the sewage treatment process of textile mills.
Table 2
Name of product polyaluminium sulfate polymerize aluminum chloride
Contain Al
2O
3Amount (%) 5.5% 7.14%
Proportion 1.16 1.20
Untreated water textile mills sewage
PH 5.1 5.1
Basicity 45% 53%
Muddy water 527 degree 527 degree
21 ℃ of beginning temperature
21 ℃ of ending temperature
(in four 2000ml beakers, respectively adding untreated water 2000ml)
Step:
Mix No. 2 beakers of 300 rev/mins of 3 minutes No. 1 beakers
Mix No. 4 beakers of 400 rev/mins of 3 minutes No. 3 beakers
30 minutes 30 minutes settling time
Dosage (undiluted stoste) 0.2ml 0.2ml
Beaker number: 1234
Surplus turbid (degree) 18 24.5 18.2 23.1 of clarification of water
Table 3, table 4 are to handle in the drinking water technology of different locations to contrast with Tai-Ace S 150.
Table 3
Name of product polyaluminium sulfate Tai-Ace S 150
Contain Al
2O
3% 5.5 5.45
Proportion 1.16 1.22
Southern suburbs, untreated water Ningbo river
PH 6.7 6.7
Turbidity (degree) 12 12
The beginning temperature (℃) 18 18
The ending temperature (℃) 18 18
Basin base degree 45%
Step: in 2 2000ml beakers, respectively add 2000ml water
Mix: 400 rev/mins 3 minutes
Settling time: 10 minutes
Dosage (undiluted stoste) 0.1ml 0.4ml
Surplus turbid (degree) 3.1 3.5
Table 4
Name of product polyaluminium sulfate Tai-Ace S 150
Contain Al
2O
3% 5.5 5.45
Proportion 1.16 1.21
Untreated water Ningbo east of a river water factory
PH value 6.7 6.7
Turbidity (degree) 26.5 26.5
Basicity 45%
16 ℃ 16 ℃ of beginning temperature
16 ℃ 16 ℃ of ending temperature
Step: in 2 2000ml beakers, add the 2000ml untreated water.
Mixed: 400 rev/mins 3 minutes
Dosage (undiluted stoste) 0.15ml 0.6ml
Settling time: 10 minutes 10 minutes
Surplus turbid (degree) 3.0 4.2
With the liquid palymeric aluminium sulfate of processing method of the present invention preparation as the reodorant of the sizing agent petroleum chemical industry of paper industry the time, effect is also very remarkable.
Claims (8)
1, a kind of preparation method of liquid palymeric aluminium sulfate, it is characterized in that with aluminiferous bauxite mine and sulphuric acid soln reaction, prepare certain density aluminum sulfate aqueous solution, above-mentioned aluminum sulfate aqueous solution and alkaline earth metal compound or ammonia are under agitation carried out polyreaction, material after the polymerization fully is through solid-liquid separation, remove the vitriol of impurity and alkaline-earth metal, and its filtrate is liquid palymeric aluminium sulfate.
2, the preparation method of liquid palymeric aluminium sulfate according to claim 1 is characterized in that the proportioning raw materials for preparing aluminum sulfate aqueous solution is:
Aluminiferous bauxite mine: sulfuric acid: water=1～1.2: 0.9～1.3: 1.5～2(weight ratio), the aluminum content (Al of bauxite mine
2O
3) with about 40% calculating, sulfuric acid is with 98% cubage.
3, the preparation method of liquid palymeric aluminium sulfate according to claim 1 is characterized in that aluminiferous bauxite mine comprises useless alum slurry, bauxitic clay, aluminium ore powder, aluminium hydroxide and coal gangue.
4, according to the preparation method of claim 1,2,3 described liquid palymeric aluminium sulfates, it is characterized in that aluminiferous bauxite mine mixes the back with sulfuric acid, water, reactant is 2.5～3kg at still inner vapor pressure, reacted 6 hours.
5, the preparation method of liquid palymeric aluminium sulfate according to claim 1 is characterized in that described alkaline earth metal compound comprises lime carbonate, carbonic acid hydrolith, calcium hydroxide, calcium oxide and their mixture or ammonia.
6, according to the preparation method of claim 1,2,3, the 5 described liquid palymeric aluminium sulfate aqueous solution, the stirring velocity that it is characterized in that polyreaction is about 60 rev/mins.
7, the preparation method of liquid polymers acid aluminium according to claim 4, the stirring velocity that it is characterized in that polymer reaction is about 60 rev/mins.
8, a kind of is the liquid palymeric aluminium sulfate of feedstock production with aluminiferous bauxite mine, it is characterized in that it can be handled as drink water purifying, industry is useless, the flocculation agent of sewage disposal, the sizing agent of paper industry, the reodorant of petroleum chemical industry.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91104676 CN1057444A (en) | 1991-07-06 | 1991-07-06 | The preparation method of liquid palymeric aluminium sulfate and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91104676 CN1057444A (en) | 1991-07-06 | 1991-07-06 | The preparation method of liquid palymeric aluminium sulfate and application thereof |
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|---|---|
| CN1057444A true CN1057444A (en) | 1992-01-01 |
Family
ID=4906743
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| CN 91104676 Pending CN1057444A (en) | 1991-07-06 | 1991-07-06 | The preparation method of liquid palymeric aluminium sulfate and application thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1034922C (en) * | 1994-01-12 | 1997-05-21 | 陈家盛 | Complex aluminate "PAS" and its production process |
| CN1312043C (en) * | 2005-05-31 | 2007-04-25 | 中国石油天然气股份有限公司 | Preparation method for synthesizing polyaluminium sulfate by using waste catalyst |
| CN102767118A (en) * | 2011-05-05 | 2012-11-07 | 黄建邺 | Preparation method for inorganic polymer papermaking additive polymerized aluminum sulfate |
| CN103058242A (en) * | 2013-01-29 | 2013-04-24 | 肇庆领誉环保实业股份有限公司 | Method for producing liquid polyaluminum sulfate from caustic sludge |
| CN104944545A (en) * | 2015-05-27 | 2015-09-30 | 福建洋屿环保科技股份有限公司 | Preparation method of flocculant |
| CN105712387A (en) * | 2016-03-15 | 2016-06-29 | 北京世纪地和控股有限公司 | Method for preparing aluminum hydroxide sulfate |
| CN107176682A (en) * | 2017-07-20 | 2017-09-19 | 许伟琦 | It is a kind of to eliminate the multiple-effect sewage-treating agent of stink, reinforced phosphor-removing |
| CN110282712A (en) * | 2019-07-02 | 2019-09-27 | 西安科技大学 | A method of sewage-treating agent is prepared using illite-structure clay mine |
-
1991
- 1991-07-06 CN CN 91104676 patent/CN1057444A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1034922C (en) * | 1994-01-12 | 1997-05-21 | 陈家盛 | Complex aluminate "PAS" and its production process |
| CN1312043C (en) * | 2005-05-31 | 2007-04-25 | 中国石油天然气股份有限公司 | Preparation method for synthesizing polyaluminium sulfate by using waste catalyst |
| CN102767118A (en) * | 2011-05-05 | 2012-11-07 | 黄建邺 | Preparation method for inorganic polymer papermaking additive polymerized aluminum sulfate |
| CN103058242A (en) * | 2013-01-29 | 2013-04-24 | 肇庆领誉环保实业股份有限公司 | Method for producing liquid polyaluminum sulfate from caustic sludge |
| CN104944545A (en) * | 2015-05-27 | 2015-09-30 | 福建洋屿环保科技股份有限公司 | Preparation method of flocculant |
| CN105712387A (en) * | 2016-03-15 | 2016-06-29 | 北京世纪地和控股有限公司 | Method for preparing aluminum hydroxide sulfate |
| CN107176682A (en) * | 2017-07-20 | 2017-09-19 | 许伟琦 | It is a kind of to eliminate the multiple-effect sewage-treating agent of stink, reinforced phosphor-removing |
| CN110282712A (en) * | 2019-07-02 | 2019-09-27 | 西安科技大学 | A method of sewage-treating agent is prepared using illite-structure clay mine |
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