CN104671295A - Method for preparing polyaluminum ferric chloride water purifier - Google Patents
Method for preparing polyaluminum ferric chloride water purifier Download PDFInfo
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- CN104671295A CN104671295A CN201310627028.3A CN201310627028A CN104671295A CN 104671295 A CN104671295 A CN 104671295A CN 201310627028 A CN201310627028 A CN 201310627028A CN 104671295 A CN104671295 A CN 104671295A
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- silicic acid
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Abstract
The invention discloses a method for preparing a polyaluminum ferric chloride water purifier. The method comprises the following steps: by taking circulating fluidized bed coal ash as a main raw material, preparing an aluminum-ferric chloride solution through acid dissolution, and performing alkalinity adjustment, thereby obtaining the polyaluminum ferric chloride water purifier. The synthesized liquid polyaluminum ferric chloride water purifier product is subjected to a related index test, the test result proves that the product accords with the national standard of a water treatment agent, namely poly-aluminum chloride; compared with commercially available like products subjected to a water purification effect comparison test, the polyaluminum ferric chloride water purifier is excellent in water purification effect and has the advantages of simple process, low production cost and good water purification effect. Moreover, the solid wastes are recycled, and the fly ash pollution problem is solved.
Description
Technical field
The present invention relates to a kind of preparation method of aluminum chlorate of polymerized silicic acid, is especially the method for raw material production aluminum chlorate of polymerized silicic acid with circulating fluid bed coal ash.
Background technology
Combustion technology of circulating fluidized is a kind of novel coal technology, has coal-fired adaptability factory one, low pollution emission, thermo-efficiency advantages of higher.The late nineteen eighties, this technology is widely applied after introducing China, particularly grinds with coal the newly-built Mei Yan stone power plant majority that stone and low grade coal are fuel and all have employed this technology, progressively will substitute traditional coal-powder boiler combustion technology in this technology of coal fired power generation field.
Summary of the invention
Object of the present invention is just for above-mentioned the deficiencies in the prior art, and providing a kind of take circulating fluid bed coal ash as the preparation method of the aluminum chlorate of polymerized silicic acid of raw material.
The object of the invention is to realize as follows: a kind of preparation method of aluminum chlorate of polymerized silicic acid, main raw material adopts circulating fluid bed coal ash, through acid-soluble obtained aluminium chloride ferrum solution, then obtains aluminum chlorate of polymerized silicic acid through basicity adjustment.
The preparation method of above-mentioned aluminum chlorate of polymerized silicic acid, the method comprises the steps:
A. acid-soluble continuously: acid-resistant reacting kettle circulating fluid bed coal ash being placed in band condensation reflux unit, heat and stir, filtering;
B. basicity adjustment: the aluminium chloride ferrum clear liquid after slag liquid is separated is sent in reactor, adds calcium aluminate powder adjustment basicity when being heated to certain temperature, then stirs, filters, and filtrate directly can be used as the liquid product of water purification agent.
The preparation method of above-mentioned aluminum chlorate of polymerized silicic acid, described acid is hydrochloric acid.
The preparation method of above-mentioned aluminum chlorate of polymerized silicic acid, the method also comprises drying step, and described filtrate is solid phase prod after drying.
Advantage of the present invention: through carrying out index of correlation test to synthesis aluminum chlorate of polymerized silicic acid liquid product, test result shows this product and meets water conditioner one polymerize aluminum chloride national standard, through carrying out purifying water effect contrast test to the like product that aluminum chlorate of polymerized silicic acid one and market are sold, the purifying water effect of this product is excellent, there is the advantage that technological process is simple, production cost is low, product purifying water effect is good, achieve the recycling to solid waste, solve flyash pollution problem.
Embodiment:
A preparation method for aluminum chlorate of polymerized silicic acid, main raw material adopts circulating fluid bed coal ash, through acid-soluble obtained aluminium chloride ferrum solution, then obtains aluminum chlorate of polymerized silicic acid through basicity adjustment.The preparation method of described aluminum chlorate of polymerized silicic acid, the method comprises the steps:
A. acid-soluble continuously: acid-resistant reacting kettle circulating fluid bed coal ash being placed in band condensation reflux unit, heat and stir, filtering;
B. basicity adjustment: the aluminium chloride ferrum clear liquid after slag liquid is separated is sent in reactor, adds calcium aluminate powder adjustment basicity when being heated to certain temperature, then stirs, filters, and filtrate directly can be used as the liquid product of water purification agent.Described acid is hydrochloric acid.Wherein said filtrate is solid phase prod after drying.
Above-described specific embodiment; object of the present invention, technical scheme and beneficial effect are further described; be understood that; the foregoing is only specific embodiments of the invention; be not limited to the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. a preparation method for aluminum chlorate of polymerized silicic acid, is characterized in that: main raw material adopts circulating fluid bed coal ash, through acid-soluble obtained aluminium chloride ferrum solution, then obtains aluminum chlorate of polymerized silicic acid through basicity adjustment.
2. according to the preparation method of the said aluminum chlorate of polymerized silicic acid of claim 1, it is characterized in that: the method comprises the steps:
A. acid-soluble continuously: acid-resistant reacting kettle circulating fluid bed coal ash being placed in band condensation reflux unit, heat and stir, filtering;
B. basicity adjustment: the aluminium chloride ferrum clear liquid after slag liquid is separated is sent in reactor, adds calcium aluminate powder adjustment basicity when being heated to certain temperature, then stirs, filters, and filtrate directly can be used as the liquid product of water purification agent.
3. the preparation method of aluminum chlorate of polymerized silicic acid according to claim 2, is characterized in that: described acid is hydrochloric acid.
4., according to the preparation method of described aluminum chlorate of polymerized silicic acid arbitrary in claim 1-3, it is characterized in that: the method also comprises drying step, described filtrate is solid phase prod after drying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310627028.3A CN104671295A (en) | 2013-11-29 | 2013-11-29 | Method for preparing polyaluminum ferric chloride water purifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310627028.3A CN104671295A (en) | 2013-11-29 | 2013-11-29 | Method for preparing polyaluminum ferric chloride water purifier |
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| CN104671295A true CN104671295A (en) | 2015-06-03 |
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| CN201310627028.3A Pending CN104671295A (en) | 2013-11-29 | 2013-11-29 | Method for preparing polyaluminum ferric chloride water purifier |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105384183A (en) * | 2015-11-24 | 2016-03-09 | 王政峰 | Process method for producing polyaluminum chloride by using pulverized coal ash |
| CN108275725A (en) * | 2018-02-09 | 2018-07-13 | 无锡日月水处理有限公司 | The method that polyaluminum ferric chloride is prepared using waste |
| CN114985435A (en) * | 2022-08-05 | 2022-09-02 | 中国科学院过程工程研究所 | Method for comprehensively utilizing waste salt and various solid wastes |
-
2013
- 2013-11-29 CN CN201310627028.3A patent/CN104671295A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105384183A (en) * | 2015-11-24 | 2016-03-09 | 王政峰 | Process method for producing polyaluminum chloride by using pulverized coal ash |
| CN108275725A (en) * | 2018-02-09 | 2018-07-13 | 无锡日月水处理有限公司 | The method that polyaluminum ferric chloride is prepared using waste |
| CN114985435A (en) * | 2022-08-05 | 2022-09-02 | 中国科学院过程工程研究所 | Method for comprehensively utilizing waste salt and various solid wastes |
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Application publication date: 20150603 |