CN85103994A - The manufacture method of flocculation agent - Google Patents
The manufacture method of flocculation agent Download PDFInfo
- Publication number
- CN85103994A CN85103994A CN198585103994A CN85103994A CN85103994A CN 85103994 A CN85103994 A CN 85103994A CN 198585103994 A CN198585103994 A CN 198585103994A CN 85103994 A CN85103994 A CN 85103994A CN 85103994 A CN85103994 A CN 85103994A
- Authority
- CN
- China
- Prior art keywords
- solution
- flocculation agent
- pac
- soda ash
- sodium aluminate
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- Expired - Lifetime
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Abstract
The present invention relates to be used to flocculate the poly-manufacture method of handling the basic aluminium chloride that contains fine microparticle water suspension.
Method in the past in order to improve the flocculence of basic aluminium chloride, needs to add various sulfate ions, thereby exists manufacturing cost height, flocculence not enough, and shortcoming such as basicity reduction.
The present invention is owing to add the resultant of reaction of sodium aluminate and sodium sulfate in basic aluminium chloride solution, thereby eliminated above-mentioned shortcoming.
Description
The invention relates to the method that adopts basic aluminium chloride (below be abbreviated as pAC) to make flocculation agent effectively.The water turbidity that this flocculation agent can be to industry and mining waste water, dyeing waste-water, starch wastewater, contain fine solid particles up and down in water etc. carries out flocculation treatment.
In the past, the pAC solution as flocculation agent is used in order to improve flocculating property, adds sulfate ion (polymerization promotor) in adding the Undec concentration range of water
As everyone knows: (1) sodium sulfate, (2) sulfuric acid, (3) Tai-Ace S 150 etc. can produce sulfate ion.But the shortcoming of (1) is the manufacturing cost height, and the shortcoming of (2) is that flocculating property is poor, and the shortcoming of (3) is that the basicity of pAC is low.Yet, though some shortcoming has at first adopted the method for Tai-Ace S 150.
In addition, though in known technology, as the operation that improves basicity, the compound that calcium such as using calcium hydroxide, calcium oxide, lime carbonate is often arranged, perhaps yellow soda ash, sodium hydroxide and the pAC solution that contains sulfate ion mix so that the method for sex change (below, because of needs abbreviate sex change as).But the compound that adds calcium generates the calcium sulfate that difficult separation is removed, and adds the method for sodium hydroxide, because of the aluminium hydroxide that generates indissoluble makes it to be difficult to filter, and can not get shortcoming greater than the pAC solution of 50% basicity in addition.
Owing to this reason, in the above-mentioned all cpds of enumerating, the method for generally taking to add yellow soda ash is carried out reaction of degeneration, still, compares with other compounds, inevitably has manufacturing cost than higher shortcoming.
Therefore purpose of the present invention relates to and improves or eliminate these shortcomings and make a kind of method of novel flocculant.The Change sentence is talked about, and is about industrial easy operation, and is with low cost, can contain the manufacture method of the pAC solution of sulfate ion as flocculation agent usefulness.
For reaching the above-mentioned purpose of the present invention, can in pAC solution, add the resultant of yellow soda ash, sodium aluminate and sodium sulfate reaction.Below be about more detailed description of the present invention.
At first, the present invention " is soluble in the aluminium hydroxide of acid " with following method manufacturing.Because the aluminium hydroxide that generates with sodium aluminate and Tai-Ace S 150 is insoluble in acid, and the aluminium hydroxide that yellow soda ash and Tai-Ace S 150 generate, though very easily be dissolved in acid, cost height (as previously mentioned) because of having used the high yellow soda ash of price, this is a well known fact.So the aluminium hydroxide that the present invention adopts the mixing solutions of sodium aluminate and yellow soda ash and Tai-Ace S 150 to generate finds that it very unexpectedly, very easily be dissolved in the acid.
Like this, core of the present invention is exactly earlier yellow soda ash and sodium aluminate to be mixed stirring, Tai-Ace S 150 is added to makes aluminium hydroxide in the mixing solutions then.This order of addition(of ingredients) is also passable conversely, is about to yellow soda ash and sodium aluminate mixing solutions and is added in the alum liquor also passable.
The concentration of all ingredients among the present invention, for example, its Al of sodium aluminate solution
2O
3Be 10%, its Al of metabisulfite solution
2O
3Be 8%, this usage quantity what, be according to the theoretical amount of basicity that requires in the pAC solution of using as flocculation agent to contain and sulfate ion concentration and suitable variation.Theoretical amount can be calculated as follows:
For example: when obtaining the flocculation agent pAC of basicity 55% by the pAC solution of basicity 45%, according to formula II m=6 * 0.45=2.7, n=6 * 0.55=3.3, then with respect to 1 mole of pAC in the pAC stoste, the mole number X of aluminium hydroxide should be 0.444.The usage quantity of yellow soda ash, Tai-Ace S 150 and sodium aluminate depends on the aluminium hydroxide mole number that is obtained by (I) formula.In addition, at this moment the usage quantity of sodium sulfate can be determined by the needed sulfate concentration of flocculation agent pAC, and the mol ratio of yellow soda ash that uses and sodium aluminate is preferably more than 0.14: 1.
The upper limit of the used ratio of above-mentioned yellow soda ash, though have no particular limits from the viewpoint of reaction, from the viewpoint that technical scale is implemented, this ratio is big more, then production cost is high more, does not have practical significance so surpass necessary usage ratio.
The amount of above-mentioned yellow soda ash, though be not particularly limited, but wish to use 10～30%(weight) concentration.
For the present invention, as note above-mentioned some, just can obtain being soluble in the aluminium hydroxide of acid.
The preparation temperature of this aluminium hydroxide should be lower than 50 ℃.If preparation temperature is higher than 50 ℃, then Zhi Bei aluminium hydroxide will be insoluble in acid, so to adding blended technology later on unfavorable in pAC solution.
The present invention subsequently with above-mentioned reaction solution intactly perhaps adds the hydroxide aluminium block that filters out to dissolving (sex change) in the pAC solution, the pAC solution that obtains having desired sulfate ion concentration and basicity.
Though wish to give and pAC solution be warmed to 60～70 ℃, not strict restriction earlier.In addition, add above-mentioned reaction solution or aluminium hydroxide after, temperature need be transferred to 40～50 ℃, about 30 minutes of reaction of degeneration time.
According to the present invention, with sodium aluminate, yellow soda ash and the sodium sulfate reaction of theoretical amount, it all is desirable can making basicity (below 65%) and sulfate ion concentration, the pAC solution that flocculating property is good.
Because the present invention is in reaction of degeneration, use the amount of yellow soda ash, 1/7 when being original single use yellow soda ash is so be very favorable for industrial production.In addition, because the reaction of degeneration foaming produces foam less or hardly, thus unlike original technology, must add defoamer, and the reaction of degeneration time, also shortened 3/4 than original method.
Specifically describe the present invention with embodiment and comparative example below.
Embodiment 1
With producing basicity after the sex change is the theoretical amount sodium aluminate solution (Al that 50% pAC solution is used
2O
310%) 111.5g and sodium carbonate solution (Na
2CO
320%) 72.5g mixes, and adds alum liquor (Al then
2O
38%) 279.0g reacts the aluminium hydroxide reaction solution that just can obtain to be soluble in acid down at 40 ℃.
This aluminium hydroxide reaction solution that is soluble in acid is added to and is warmed up to 60 ℃, the pAC stoste (Al of 1kg
2O
3Concentration 19.9%, basicity 48.6%, sulfate radical 0%, S.S0.9%) in, dissolving post curing 30 minutes.Add 794ml water then and make Al
2O
3Concentration reaches 10.3%, and the elimination insolubles can obtain the pAC solution of using as flocculation agent.Table 1 has been listed analytical results.
Comparative example 1
Without yellow soda ash, only will produce basicity after the sex change and be the theoretical amount sodium aluminate solution (Al that 50% pAC solution is used
2O
310%) 171.1g and alum liquor (Al
2O
38%) 286.9g mixes, and other steps are the same with embodiment 1, made the pAC solution of using as flocculation agent.Analytical results is listed at table 1.
Embodiment 2
Theoretical amount sodium aluminate solution (the Al that basicity is used for 55%pAC solution after the sex change will be produced
2O
310%) 267.1g, sodium carbonate solution (Na
2CO
320%) 77.8g and alum liquor (Al
2O
38%) 299.6g mixes, and other steps are identical with embodiment 1, made the pAC solution of using as flocculation agent.Analytical results is listed in table 1.
Comparative example 2
Without yellow soda ash, only will produce the theoretical amount sodium aluminate solution (Al that basicity is used for 55%pAC solution after the sex change
2O
310%) 336.0g and alum liquor (Al
2O
38%) 308.8g mixes, and other steps are identical with embodiment 1, made the pAC solution of using as flocculation agent.Analytical results is listed in table 1.
Embodiment 3～6
Sodium aluminate solution (the Al of the theoretical amount that basicity after the sex change uses for 60%pAC solution will be produced
2O
310%) sodium carbonate solution (Na,
2CO
320%) and alum liquor (Al
2O
38%) mix, consumption is listed in table 1, and other steps are identical with embodiment 1, made the pAC solution of using as flocculation agent.Analytical results is listed in table 1.
Comparative example 3
Without yellow soda ash, only will produce the theoretical amount sodium aluminate solution (Al that basicity is used for the 60%pAC dope after the sex change
2O
310%) 447.6g and alum liquor (Al
2O
38%) 323.6g mixes, and other steps are identical with embodiment 1, made the pAC solution of using as flocculation agent.Analytical results is listed in table 1.
Comparative example 4 and example 5
Sodium carbonate solution (the Na of the theoretical amount that basicity after the sex change uses for 60%pAC solution will be produced
2CO
320%) sodium aluminate solution (Al,
2O
310%) and alum liquor (Al
2O
38%) mix, the mol ratio of yellow soda ash and sodium aluminate was less than 0.14: 1, and other steps are identical with embodiment 1, made the pAC solution of using as flocculation agent.Analytical results is listed in table 1.
Embodiment 7
The pAC solution of using as flocculation agent to making with the embodiment of the invention 1 carries out the flocculating property compare test.
Sample (1) is a wood river surface water (turbidity 2.3ppm, pH7.5,10 ℃ of water temperatures, basicity 16.3) once.
The pAC solution that makes by embodiment 1 by Al
2O
32ppm is added in the 1000ml sample (1), stirs (100rpm) fast 1 minute, stirs (20rpm) 10 minutes at a slow speed, leaves standstill then 10 minutes.After stirring end at a slow speed, measure the diameter of suspended particles and leave standstill the turbidity of supernatant liquid afterwards, its result is by table 2 illustrate.
Sample (2) is sandstone washing draining (11 ℃ of S.S4.7%, pH8.5, water temperatures).
The pAC solution that makes by embodiment 1 by Al
2O
36ppm is added in the 1000ml sample (2), stirs (100rpm) fast, leaves standstill then 3 minutes.Stir fast finish after, measure the diameter of suspended particles and leave standstill the turbidity of back supernatant liquid, its as a result table 2 illustrate.
Sample (3) is for making the draining (S.S1590mg/l, turbidity 259ppm, pH4.3, COD327mg/l) of bread
The sodium hydroxide of 220ppm is added in the 1000ml sample (3), stirred (100rpm) fast 1 minute, the pAC solution that embodiment 1 is made is by Al then
2O
320ppm adds, and stirs (100rpm) 1 minute fast, stirs (20rpm) 2 minutes at a slow speed, leaves standstill then 5 minutes.Stir at a slow speed and finish turbidity and the COD value that the back is measured the suspended particles diameter, left standstill the back supernatant liquid.The result is by table 2 illustrate.
Embodiment 8
For the flocculation agent that makes by embodiment 2 pAC solution, carry out the flocculating property test identical with embodiment 7.The result is by table 2 illustrate.
Embodiment 9
For the pAC solution that the flocculation agent that is made by embodiment 3 is used, carry out the flocculating property test identical with embodiment 7.The result is by table 2 illustrate.
Comparative example 7
For the flocculation agent that makes by comparative example 1 pAC solution, carry out the flocculating property test identical with embodiment 7.The result is by table 2 illustrate.
Comparative example 8
For the pAC solution that the flocculation agent that is made by comparative example 2 is used, carry out the flocculating property test identical with embodiment 7.The result is by table 2 illustrate.
Comparative example 9
For the pAC solution that the flocculation agent that is made by comparative example 3 is used, carry out the flocculating property test identical with embodiment 7.The result is by table 2 illustrate.
Comparative example 10
The flocculation agent of market sale with pAC solution (basicity 55%), is carried out the flocculating property test identical with embodiment 7.The result is by table 2 illustrate.
According to result shown in the table 2, can know, according to the prepared flocculation agent of manufacture method of the present invention pAC solution, be identical with the market sale product, have identical flocculating property in other words.Therefore manufacture method of the present invention is in industrial easy production, and manufacturing cost is cheap, demonstrates very big superiority.
Claims (3)
1, the mixing solutions that adds in basic aluminium chloride solution by yellow soda ash, sodium aluminate and Tai-Ace S 150 reacts the aluminium hydroxide that generates, and makes basic aluminium chloride generation sex change make the method for flocculation agent.
According to claim 1 described manufacture method, it is characterized in that 2, the mol ratio of yellow soda ash and sodium aluminate is more than 0.14: 1.
According to claim 1 described manufacture method, it is characterized in that 3, the temperature of reaction of the mixing solutions of yellow soda ash, sodium aluminate and Tai-Ace S 150 is below 50 ℃.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59132202A JPS6114126A (en) | 1984-06-27 | 1984-06-27 | Manufacture of high concentration solution of polyaluminum chloride having high basicity |
| CN85103994A CN1003214B (en) | 1984-06-27 | 1985-05-24 | Method for prepn. of flocculating agents |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59132202A JPS6114126A (en) | 1984-06-27 | 1984-06-27 | Manufacture of high concentration solution of polyaluminum chloride having high basicity |
| CN85103994A CN1003214B (en) | 1984-06-27 | 1985-05-24 | Method for prepn. of flocculating agents |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN85103994A true CN85103994A (en) | 1986-11-19 |
| CN1003214B CN1003214B (en) | 1989-02-08 |
Family
ID=25741679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN85103994A Expired CN1003214B (en) | 1984-06-27 | 1985-05-24 | Method for prepn. of flocculating agents |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS6114126A (en) |
| CN (1) | CN1003214B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113292091A (en) * | 2021-05-17 | 2021-08-24 | 太仓市业洪净水新材料有限公司 | Preparation process of polyaluminum chloride polysulfide flocculant for low-temperature high-turbidity water treatment |
| CN117339552A (en) * | 2023-11-21 | 2024-01-05 | 陕西科技大学 | Gas-based residue adsorption-flocculation multifunctional water purifying agent and preparation method and application thereof |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100399304B1 (en) * | 1995-06-16 | 2003-12-31 | 앵스띠뛰 프랑세 뒤 뻬뜨롤 | Catalyst for hydrocarbon conversion reaction containing doping metal |
| KR100380926B1 (en) * | 2000-09-21 | 2003-04-26 | (주)이앤텍 | A method for production of polymeric aluminum coagulant using wasted aluminum chloride solution |
| CN100355656C (en) * | 2004-07-09 | 2007-12-19 | 中国石油天然气股份有限公司 | Preparation method of polymerized aluminium chloride having high aluminium content |
| JP5877600B2 (en) * | 2011-03-31 | 2016-03-08 | アクアス株式会社 | Aggregation processing equipment |
| JP6998729B2 (en) * | 2017-10-31 | 2022-01-18 | 東亞合成株式会社 | Ground improver composition and its use |
-
1984
- 1984-06-27 JP JP59132202A patent/JPS6114126A/en active Granted
-
1985
- 1985-05-24 CN CN85103994A patent/CN1003214B/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113292091A (en) * | 2021-05-17 | 2021-08-24 | 太仓市业洪净水新材料有限公司 | Preparation process of polyaluminum chloride polysulfide flocculant for low-temperature high-turbidity water treatment |
| CN117339552A (en) * | 2023-11-21 | 2024-01-05 | 陕西科技大学 | Gas-based residue adsorption-flocculation multifunctional water purifying agent and preparation method and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6114126A (en) | 1986-01-22 |
| CN1003214B (en) | 1989-02-08 |
| JPH024534B2 (en) | 1990-01-29 |
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