CN102115120A - Method for producing calcium carbonate by using carbide slag - Google Patents
Method for producing calcium carbonate by using carbide slag Download PDFInfo
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- CN102115120A CN102115120A CN 201010615522 CN201010615522A CN102115120A CN 102115120 A CN102115120 A CN 102115120A CN 201010615522 CN201010615522 CN 201010615522 CN 201010615522 A CN201010615522 A CN 201010615522A CN 102115120 A CN102115120 A CN 102115120A
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- calcium carbonate
- carbide slag
- chloride
- calcium
- filtrate
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- Processing Of Solid Wastes (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention provides a method for producing calcium carbonate by using carbide slag. The method comprises the following steps: grinding the carbide slag into 80-100 meshed crude powder; placing the crude powder in a reactor so as to be fully mixed with water; adding excess hydrochloric acid to the reactor so that oxide in the crude powder is converted to soluble chloride; then filtering the reaction product so as to obtain a filtrate mainly containing calcium chloride, wherein the filtrate also contains little aluminum chloride and ferric chloride; reacting the filtrate mainly containing calcium chloride with an excess carbonic acid solution so that calcium ions and caronate ions are combined into calcium carbonate which is precipitated; filtering so as to obtain a calcium carbonate filter cake; and drying and smashing the calcium carbonate filter cake so as to obtain a pure calcium carbonate product. The method is less in equipment investment and is simple to operate, and the obtained calcium carbonate product is high in purity and has large economic value.
Description
Technical field
The present invention relates to carbide slag comprehensive utilization technique field, particularly, relate to a kind of method of producing lime carbonate with carbide slag.
Background technology
Carbide slag is mainly derived from generated by polyvinyl chloride by calcium carbide and vinyl acetate between to for plastic production.About 1.45 tons of 1 ton of polyvinyl chloride power consumption of every production stone produces carbide slag more than 1 ton, so 1 ton of polyvinyl chloride of every production need be discharged carbide slag more than 2 tons after the calcium carbide hydrolysis per ton.Carbide slag quantity is big, and the alkalinity height contains objectionable impuritiess such as sulphur, arsenic again, and not treated discharging can be stopped up water drain, stops up long-pending riverbed, the harm fish production.Stack then land occupation, contaminate environment on land.
Carbide slag mainly consist of calcium oxide, its content accounts for more than 50%, also contains small amounts magnesium, aluminium sesquioxide, ferric oxide and silicon-dioxide.At present, carbide slag be mainly used in make cement and and material of construction, it is effectively put into composition and is not fully utilized.
Summary of the invention
Carbide slag mainly consist of calcium oxide, its content accounts for more than 50%, also contain small amounts magnesium, aluminium sesquioxide, ferric oxide and silicon-dioxide, in order to make full use of carbide slag, the application provides a kind of method of producing lime carbonate with carbide slag, and this method is effectively extracted the calcium that contains in the carbide slag, for the industrial application of carbide slag provides new approach, and method is simple, and facility investment is few, is a method that is worthy of popularization.
The application's technical scheme is as follows: a kind of method of producing lime carbonate with carbide slag, comprise the steps: carbide slag is worn into 80-100 purpose meal, place reactor and water thorough mixing, then in reactor, drop into excessive hydrochloric acid, making the oxygenate conversion in the carbide slag is the muriate of solubility, then, and the filtering reaction product, obtain containing filtrate, also contain a spot of aluminum chloride and iron(ic) chloride in the filtrate based on calcium chloride; Will be based on the filtrate filtrate and the excess carbon acid solution reaction of calcium chloride, calcium ion and carbanion are combined into lime carbonate and precipitate, yet, because under water surrounding, can not obtain iron carbonate, and also very easily hydrolysis of aluminium carbonate separates calcium ion with magnesium ion with the form of precipitation of calcium carbonate thus with aluminum ion, after filtration, obtain calcium carbonate filter cake, the calcium carbonate filter cake drying is pulverized, and must beat purified calcium carbonate product.
Method of producing lime carbonate with carbide slag of the present invention is effectively extracted the calcium that contains in the carbide slag, and for the industrial application of carbide slag provides new approach, and method is simple, and facility investment is few, is a method that is worthy of popularization.
Embodiment
Embodiment 1:
A kind of method of producing lime carbonate with carbide slag, the 500kg carbide slag is worn into 80-100 purpose meal, place reactor and 500kg water thorough mixing, then in reactor, drop into excessive hydrochloric acid, making the oxygenate conversion in the carbide slag is the muriate of solubility, then, and the filtering reaction product, obtain containing filtrate, also contain a spot of aluminum chloride and iron(ic) chloride in the filtrate based on calcium chloride; Will be based on the filtrate filtrate and the excess carbon acid solution reaction of calcium chloride, calcium ion and carbanion are combined into lime carbonate and precipitate, and after filtration, obtain calcium carbonate filter cake, and the calcium carbonate filter cake drying is pulverized, and must beat purified calcium carbonate product.
Above content be in conjunction with concrete preferred implementation to further describing that the present invention did, can not assert that concrete enforcement of the present invention is confined to these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, its framework form can be flexible and changeable, can the subseries product.Just make some simple deduction or replace, all should be considered as belonging to the scope of patent protection that the present invention is determined by claims of being submitted to.
Claims (1)
1. method of producing lime carbonate with carbide slag, it is characterized in that, comprise the steps: carbide slag is worn into 80-100 purpose meal, place reactor and water thorough mixing, then drop into excessive hydrochloric acid in reactor, making the oxygenate conversion in the carbide slag is the muriate of solubility, then, the filtering reaction product obtains containing the filtrate based on calcium chloride, also contains a spot of aluminum chloride and iron(ic) chloride in the filtrate; Will be based on the filtrate filtrate and the excess carbon acid solution reaction of calcium chloride, calcium ion and carbanion are combined into lime carbonate and precipitate, and after filtration, obtain calcium carbonate filter cake, and the calcium carbonate filter cake drying is pulverized, and must beat purified calcium carbonate product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010615522 CN102115120A (en) | 2010-12-31 | 2010-12-31 | Method for producing calcium carbonate by using carbide slag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010615522 CN102115120A (en) | 2010-12-31 | 2010-12-31 | Method for producing calcium carbonate by using carbide slag |
Publications (1)
| Publication Number | Publication Date |
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| CN102115120A true CN102115120A (en) | 2011-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010615522 Pending CN102115120A (en) | 2010-12-31 | 2010-12-31 | Method for producing calcium carbonate by using carbide slag |
Country Status (1)
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| CN (1) | CN102115120A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102992373A (en) * | 2012-08-23 | 2013-03-27 | 浙江工业大学 | Method for preparing light calcium carbonate from acetylene sludge |
| CN103011079A (en) * | 2012-12-20 | 2013-04-03 | 贵州开磷（集团）有限责任公司 | Method for treating waste carbide slag and waste hydrochloric acid |
| ES2471567A1 (en) * | 2012-12-21 | 2014-06-26 | Fundaci�N Centro Tecnol�Gico Andaluz De La Piedra | Procedure for the generation of nanoparticles of calcium carbonate by wet process from residues of the natural stone transformation industry (Machine-translation by Google Translate, not legally binding) |
| CN106348331A (en) * | 2016-08-23 | 2017-01-25 | 魏巍 | Building waste material utilization method |
| CN110817919A (en) * | 2019-12-04 | 2020-02-21 | 新疆国峰嘉和环保科技有限公司 | Preparation method of calcium oxide balls regenerated from carbide slag |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1193602A (en) * | 1997-03-17 | 1998-09-23 | 北京化工大学 | Preparation of lightweight calcium carbonate |
| JP3874449B2 (en) * | 1996-05-21 | 2007-01-31 | 奥多摩工業株式会社 | Method for producing light calcium carbonate |
| CN101844790A (en) * | 2010-02-11 | 2010-09-29 | 汪晋强 | Method for preparing calcium carbonate from yellow phosphorus furnace slag to co-produce industrial salt and water glass |
-
2010
- 2010-12-31 CN CN 201010615522 patent/CN102115120A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3874449B2 (en) * | 1996-05-21 | 2007-01-31 | 奥多摩工業株式会社 | Method for producing light calcium carbonate |
| CN1193602A (en) * | 1997-03-17 | 1998-09-23 | 北京化工大学 | Preparation of lightweight calcium carbonate |
| CN101844790A (en) * | 2010-02-11 | 2010-09-29 | 汪晋强 | Method for preparing calcium carbonate from yellow phosphorus furnace slag to co-produce industrial salt and water glass |
Non-Patent Citations (2)
| Title |
|---|
| 《化工科技》 20071231 颜鑫 电石渣生产纳米碳酸钙的工艺研究 70-72 1 第15卷, 第5期 2 * |
| 《贵州大学学报（自然科学版）》 20100430 刘飞等 利用电石渣制备碳酸钙晶须的初步研究 126-128、132 1 第27卷, 第2期 2 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102992373A (en) * | 2012-08-23 | 2013-03-27 | 浙江工业大学 | Method for preparing light calcium carbonate from acetylene sludge |
| CN102992373B (en) * | 2012-08-23 | 2015-01-28 | 浙江工业大学 | Method for preparing light calcium carbonate from acetylene sludge |
| CN103011079A (en) * | 2012-12-20 | 2013-04-03 | 贵州开磷（集团）有限责任公司 | Method for treating waste carbide slag and waste hydrochloric acid |
| CN103011079B (en) * | 2012-12-20 | 2014-09-03 | 贵州开磷（集团）有限责任公司 | Method for treating waste carbide slag and waste hydrochloric acid |
| ES2471567A1 (en) * | 2012-12-21 | 2014-06-26 | Fundaci�N Centro Tecnol�Gico Andaluz De La Piedra | Procedure for the generation of nanoparticles of calcium carbonate by wet process from residues of the natural stone transformation industry (Machine-translation by Google Translate, not legally binding) |
| CN106348331A (en) * | 2016-08-23 | 2017-01-25 | 魏巍 | Building waste material utilization method |
| US10695806B2 (en) | 2016-08-23 | 2020-06-30 | Yuanchu Technology (Beijing) Co., Ltd. | Method of utilizing construction and demolition waste |
| CN110817919A (en) * | 2019-12-04 | 2020-02-21 | 新疆国峰嘉和环保科技有限公司 | Preparation method of calcium oxide balls regenerated from carbide slag |
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Application publication date: 20110706 |