CN1792847A - Process for producing basic poly aluminium sulfate silicate by one step method - Google Patents
Process for producing basic poly aluminium sulfate silicate by one step method Download PDFInfo
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- CN1792847A CN1792847A CN 200510100979 CN200510100979A CN1792847A CN 1792847 A CN1792847 A CN 1792847A CN 200510100979 CN200510100979 CN 200510100979 CN 200510100979 A CN200510100979 A CN 200510100979A CN 1792847 A CN1792847 A CN 1792847A
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- water glass
- aluminium sulfate
- poly aluminium
- sulfate silicate
- basic poly
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- Silicates, Zeolites, And Molecular Sieves (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Silicon Compounds (AREA)
Abstract
A one-step process for preparing the alkaline aluminum polysilicosulfate used as coagulant includes such steps as loading aluminum sulfate solution into reactor, strong stirring while adding diluted solution of water glass, and continuous stirring for 0.5-3 hr.
Description
Technical field
The present invention relates to the production method of efficient water-purifying agent basic poly aluminium sulfate silicate.
Background technology
First-generation water conditioner---Tai-Ace S 150 is successfully developed and produced in the road of the industrialization development of flocculation agent since the U.S. in 1884.Polymerization aluminium silicate-sulphate (PASS) is the novel coagulating agent that grows up on conventional aluminum salt basis, is the earliest to use Tai-Ace S 150, water glass and sodium aluminate to succeed in developing as raw material in January, 1989 by Chinese enlightening chemical company.The method for preparing PASS of bibliographical information generally adopts two step method, promptly earlier obtains activated silicic acid with sulfuric acid acidation water glass, prepares poly aluminium sulfate silicate with reacting aluminum sulfate then.They all have the shortcoming that complex manufacturing, reaction effect are difficult to control and cost is high.Application number is the preparation method that the application for a patent for invention of CN03129500 discloses a kind of polymerization aluminium silicate-sulphate coagulating agent, and this method comprises that needs add acid twice, still belong to two step method.
Summary of the invention
The objective of the invention is provides a kind of method of process for producing basic poly aluminium sulfate silicate by one step at the high shortcoming of complicacy, uncontrollability and the cost of polymerization aluminium silicate-sulphate traditional processing technology.
For reaching above-mentioned purpose, the present invention adopts following technical scheme: the method for this process for producing basic poly aluminium sulfate silicate by one step is: is mass concentration that 3～33.5% 500 mass parts alum liquors place reactor, under intense agitation, added SiO at 30: 1～1: 1 in the scope according to aluminium and silicon mol ratio
2Mass concentration is 1～30% water glass diluting soln, continues to stir 0.5～3 hour, gets the basic poly aluminium sulfate silicate coagulating agent.
As a kind of preferred version, in the described stock liquid, the concentration of Tai-Ace S 150 is 20～30%; SiO in the water glass
2Mass concentration is 2.5～5%.The mol ratio of aluminium and silicon is 15: 1～2: 1.
The speed that stirs in the reaction is the best with greater than 100 rev/mins with 800～1000 rev/mins.
The adding speed of described water glass diluting soln is suitable not have precipitation to be generated as in the reaction solution.
After adding the water glass diluting soln fully, the time of continuing to stir is 1～2 hour best results.
Process for producing basic poly aluminium sulfate silicate by one step of the present invention carries out under normal temperature, normal pressure, and technology is very simple, need not complex apparatus again, and the physical and chemical performance of the coagulating agent that obtains is more stable, and coagulation performance is good.And, there is not " three wastes " discharging in the whole preparation process process, produce fool proofly, be easy to apply the genus process for cleanly preparing.The gained basic poly aluminium sulfate silicate is applicable to the clean water treatment and the paper-making sizing industry of domestic water, process water, sanitary sewage and trade effluent, can be used as auxiliary agent in industries such as pharmacy, at material science as thermal insulation material and insulating material.
The present invention has overcome the drawback that is prone to gel in the traditional preparation process technological process with the sulfuric acid activated silicic acid, simplified synthesis route, reduced the workload of building-up process, provided convenience, reduced production costs simultaneously for the scale operation basic poly aluminium sulfate silicate.
Embodiment
Embodiment 1
Accurately take by weighing the 500g mass percent concentration and be 30% alum liquor in reactor, low whipping speed is under 800～1000 rev/mins of conditions, adds the SiO of 112.9g in reactor
2Content is 5% water glass diluting soln or the sodium silicate solution source as reaction basifier and silicon, at the uniform velocity add in the time at 60min, guarantee not precipitation generation in the solution, normal temperature continues stirring reaction 3h down, promptly obtains liquid basic poly aluminium sulfate silicate coagulating agent.
Embodiment 2:
Accurately take by weighing 500g content and be 20% alum liquor in the reactor bottle, low whipping speed is under 800～1000 rev/mins of conditions, adds the SiO of 56.45g in reactor
2Content is 5% the water glass diluting soln source as reaction basifier and silicon, at the uniform velocity adds in the time at 60min, guarantees in the solution that precipitation generates, and normal temperature continues stirring reaction 2h down, promptly obtains liquid basic poly aluminium sulfate silicate coagulating agent.
Embodiment 3:
Accurately take by weighing 500g content and be 20% alum liquor in the reactor bottle, low whipping speed is under 800～1000 rev/mins of conditions, adds 225.8gSiO in reactor
2Content is 2.5% the water glass diluting soln source as reaction basifier and silicon, at the uniform velocity adds in the time at 60min, guarantees in the solution that precipitation generates, and normal temperature continues stirring reaction 1h down, promptly obtains liquid basic poly aluminium sulfate silicate coagulating agent.
Embodiment 4:
Accurately take by weighing 500g content and be 30% alum liquor in the reactor bottle, low whipping speed is under 800～1000 rev/mins of conditions, adds 113gSiO in reactor
2Content is 2.5% the water glass diluting soln source as reaction basifier and silicon, at the uniform velocity adds in the time at 60min, guarantees in the solution that precipitation generates, and normal temperature continues stirring reaction 0.5h down, promptly obtains liquid basic poly aluminium sulfate silicate coagulating agent.
Claims (7)
1, a kind of method of process for producing basic poly aluminium sulfate silicate by one step, it is characterized in that: is mass concentration that 3～33.5% 500 mass parts alum liquors place reactor, under intense agitation, added SiO at 30: 1～1: 1 in the scope according to aluminium and silicon mol ratio
2Mass concentration is 1～30% water glass diluting soln, continues to stir 0.5～3 hour, gets the basic poly aluminium sulfate silicate coagulating agent.
2, method according to claim 1 is characterized in that: in the described stock liquid, the mass concentration of Tai-Ace S 150 is 20～30%; SiO in the water glass
2Concentration is 2.5～5%.
3, method according to claim 1 is characterized in that: in the described raw material, the mol ratio of aluminium and silicon is 15: 1～2: 1.
4, method according to claim 1 is characterized in that: the speed that stirs in the reaction is greater than 100 rev/mins.
5, method according to claim 4 is characterized in that: the speed that stirs in the reaction is 800～1000 rev/mins.
6, method according to claim 1 is characterized in that: the adding speed of water glass diluting soln is suitable not have precipitation to be generated as in the reaction solution.
7, method according to claim 1 is characterized in that: after adding the water glass diluting soln fully, the time of continuing to stir is 1～2 hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101009790A CN100369827C (en) | 2005-11-10 | 2005-11-10 | Process for producing basic poly aluminium sulfate silicate by one step method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101009790A CN100369827C (en) | 2005-11-10 | 2005-11-10 | Process for producing basic poly aluminium sulfate silicate by one step method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1792847A true CN1792847A (en) | 2006-06-28 |
| CN100369827C CN100369827C (en) | 2008-02-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005101009790A Expired - Fee Related CN100369827C (en) | 2005-11-10 | 2005-11-10 | Process for producing basic poly aluminium sulfate silicate by one step method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103588272A (en) * | 2013-11-29 | 2014-02-19 | 陈忠林 | Preparation method for inorganic flocculating agent and enhanced coagulation method for treating low-temperature low-turbidity high-organic matter water body by using inorganic flocculating agent |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102068971B (en) * | 2010-12-03 | 2013-06-19 | 哈尔滨工业大学 | Preparation method of poly-aluminum silicate |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5296213A (en) * | 1992-08-13 | 1994-03-22 | Handy Chemicals Limited | Polymeric aluminum silicate-sulphate and process for producing same |
| US5573674A (en) * | 1995-10-27 | 1996-11-12 | General Chemical Corporation | Activated silica sol |
| CN1173893C (en) * | 2000-12-22 | 2004-11-03 | 华南理工大学 | Polymerized basic aluminosilicate flocculant and its preparation process and equipoment |
| CN1283561C (en) * | 2003-06-25 | 2006-11-08 | 上海自来水市北科技有限公司 | Polymerized silica aluminium sulphate coagulant and preparation method thereof |
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2005
- 2005-11-10 CN CNB2005101009790A patent/CN100369827C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103588272A (en) * | 2013-11-29 | 2014-02-19 | 陈忠林 | Preparation method for inorganic flocculating agent and enhanced coagulation method for treating low-temperature low-turbidity high-organic matter water body by using inorganic flocculating agent |
| CN103588272B (en) * | 2013-11-29 | 2015-11-04 | 哈尔滨优方净水科技有限公司 | A kind of preparation method of inorganic flocculating agent and utilize the enhanced coagulation method of its process low-temperature and low turbidity height organism water body |
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| CN100369827C (en) | 2008-02-20 |
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Granted publication date: 20080220 Termination date: 20131110 |