CN100390064C - Production of superfine calcium carbonate from carbide slag - Google Patents
Production of superfine calcium carbonate from carbide slag Download PDFInfo
- Publication number
- CN100390064C CN100390064C CNB2005100208301A CN200510020830A CN100390064C CN 100390064 C CN100390064 C CN 100390064C CN B2005100208301 A CNB2005100208301 A CN B2005100208301A CN 200510020830 A CN200510020830 A CN 200510020830A CN 100390064 C CN100390064 C CN 100390064C
- Authority
- CN
- China
- Prior art keywords
- calcium carbonate
- carbide slag
- chloride solution
- reaction temperature
- calcium chloride
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The present invention relates to a method for preparing superfine calcium carbonate by using carbide slag as the raw material and using a chemical precipitation method. Sodium stearate is added after dried carbide slag is dissolved by NH4Cl solution to remove residues; then CO2 gas is led in, and the reaction temperature is controlled to be 2 to 100 DEG C. The method can respectively obtain calcium carbonate in plate-shaped crystalline form, spherical crystalline form and acicular crystalline form by controlling the reaction temperature. The method takes the low-priced carbide slag as the raw material, and therefore, the production cost is low, but the added value of the product is high. Simultaneously, the environment quality is improved. Ammonium chloride and ammonia water in the production process can be recycled. Therefore, the secondary pollution in the production process is also prevented. The present invention provides an effective means for eliminating the environmental pollution caused by the carbide slag.
Description
Technical field
The present invention is a kind of method of utilizing carbide slag to prepare lime carbonate, particularly is raw material with the carbide slag, adopts chemical precipitation method to prepare the method for calcium carbonate superfine powder.
Background technology
Calcium carbide is a kind of important chemical material, and of many uses in plastics preparation, welding, cutting, the amount of corresponding generation carbide slag is huge especially, adds up according to investigations, and the annual carbide slag that produces in the whole nation reaches more than 1,800 ten thousand tons.Carbide slag is not still had the method for processing preferably and resource utilization at present both at home and abroad, mainly use it for and produce interior wall coating, light calcium carbonate, cement, carbonated lime brick and be used to handle waste water, processing accident chlorine is made sweetening agent or sulphur-fixing agent etc.But above method all belongs to the end treatment technology, still can produce a large amount of environmental pollutant.
Summary of the invention
The objective of the invention is to overcome above-mentioned the deficiencies in the prior art, a kind of method of utilizing carbide slag to prepare calcium carbonate superfine powder is provided, the added value so that increase utilizes carbide slag to produce effectively solves environmental pollution, improves the utilization ratio and the value of carbide slag widely.
Solution of the present invention is: a kind ofly prepare the method for calcium carbonate superfine powder with carbide slag, it is characterized in that being undertaken by following processing step:
A, with the carbide slag drying;
B, employing NH
4Cl solution dissolves carbide slag, obtains calcium chloride solution and residue, control calcium chloride solution pH value 〉=6;
Obtain clarifying calcium chloride solution behind c, the filtration residue, add sodium stearate, and then in calcium chloride solution, feed CO
2Gas, control reaction temperature are at 2-100 ℃, and control sodium stearate add-on is for generating the 0.1-0.5% of back weight of calcium carbonate;
Obtain calcium carbonate superfine powder after d, the drying.
Can in calcium chloride solution, feed CO in the solution of the present invention
2Gas, control reaction temperature are at 2-6 ℃, and reaction generates tabular calcite type calcium carbonate.
Can in calcium chloride solution, feed CO in the solution of the present invention
2Gas, control reaction temperature are at 8-15 ℃, and reaction generates the globular vaterite-type calcium carbonate.
Can in calcium chloride solution, feed CO in the solution of the present invention
2Gas, control reaction temperature are at 70-90 ℃, and reaction generates acicular aragonite calcium carbonate.
Reaction process of the present invention is as follows:
Ca(OH)
2+NH
4Cl＝CaCl
2+NH
3↑+H
2O
CaCl
2+2NH
3+H
2O+CO
2＝CaCO
3+2NH
4Cl
Ammonium chloride and Ca (OH) in the above-mentioned reaction
2Can react and generate NH
3Gas is convenient to recycle, as long as pH 〉=6 of control solution, the impurity such as oxide compound of Fe, AL, Si just can not dissolve, so impurity can separate fully.
Attach stearic acid sodium be in invention it as properties-correcting agent, because a lime carbonate material smooth surface, it is serious to reunite, and a lime carbonate material is played package action after adding sodium stearate, and calcium carbonate granule is disperseed, and homogeneity obviously improves.
Advantage of the present invention:
1, production technique is simple, is the source material with the carbide slag of cheapness, saves cost greatly, and improves environment;
2, in this technical process, chlorination money and chlorine water can be recycled, and greatly reduce production cost;
3, products obtained therefrom is a calcium carbonate superfine powder, and the added value height improves the utilization ratio and the value of carbide slag widely.
Description of drawings
Fig. 1 is the lime carbonate sem photograph that embodiment 1 produces;
Fig. 2 is the lime carbonate sem photograph that embodiment 2 produces;
Fig. 3 is the lime carbonate sem photograph that embodiment 3 produces.
Embodiment
Embodiment 1
Carbide slag behind 105 ℃ temperature drying, is adopted NH
4The dissolving of Cl solution, lysate pH value is 6, adds sodium stearate behind the removal residue, control sodium stearate add-on is 0.5% of generation back weight of calcium carbonate, and then feeding CO
2Gas, and control reaction temperature is controlled at 2-6 ℃, drying obtains the calcite type calcium carbonate of crystalline form such as Fig. 1 shape after scanning electron microscope is analyzed product.
Embodiment 2
Carbide slag behind 100 ℃ temperature drying, is adopted NH
4The dissolving of Cl solution, lysate pH value add sodium stearate greater than 7 behind the removal residue, and control sodium stearate add-on is to generate the back weight of calcium carbonate O.4%, and then feeding CO
2Gas, and control reaction temperature is controlled at 8-15 ℃, drying obtains the vaterite-type calcium carbonate of crystalline form such as Fig. 2 shape after scanning electron microscope is analyzed product.
Embodiment 3
Carbide slag behind 105 ℃ temperature drying, is adopted NH
4The dissolving of Cl solution, lysate pH value add sodium stearate greater than 6 behind the removal residue, and control sodium stearate add-on is 0.1% of generation back weight of calcium carbonate, and then feeding CO
2Gas, and control reaction temperature is controlled at 70-90 ℃, drying obtains the aragonite calcium carbonate of crystalline form such as Fig. 3 shape after scanning electron microscope is analyzed product.
Claims (4)
1. one kind prepares the method for calcium carbonate superfine powder with carbide slag, it is characterized in that being undertaken by following processing step;
A, with the carbide slag drying;
B, stay and use NH
4Cl solution dissolves carbide slag, obtains calcium chloride solution and residue, control calcium chloride solution pH value 〉=6;
Obtain clarifying calcium chloride solution behind c, the filtration residue, add sodium stearate, and then in calcium chloride solution, feed CO
2Gas, control reaction temperature are at 2-100 ℃, and control sodium stearate add-on is for generating the 0.1-0.5% of back weight of calcium carbonate;
Obtain calcium carbonate superfine powder after d, the drying.
2. according to claim 1ly prepare the method for calcium carbonate superfine powder, it is characterized in that in calcium chloride solution, feeding CO with carbide slag
2Gas, control reaction temperature are at 2-6 ℃, and reaction generates tabular calcite type calcium carbonate.
3. according to claim 1ly prepare the method for calcium carbonate superfine powder, it is characterized in that in calcium chloride solution, feeding CO with carbide slag
2Gas, control reaction temperature are at 8-15 ℃, and reaction generates the globular vaterite-type calcium carbonate.
4. according to claim 1ly prepare the method for calcium carbonate superfine powder, it is characterized in that in calcium chloride solution, feeding CO with carbide slag
2Gas, control reaction temperature are at 70-90 ℃, and reaction generates acicular aragonite calcium carbonate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100208301A CN100390064C (en) | 2005-04-28 | 2005-04-28 | Production of superfine calcium carbonate from carbide slag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100208301A CN100390064C (en) | 2005-04-28 | 2005-04-28 | Production of superfine calcium carbonate from carbide slag |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1854069A CN1854069A (en) | 2006-11-01 |
| CN100390064C true CN100390064C (en) | 2008-05-28 |
Family
ID=37194576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100208301A Expired - Fee Related CN100390064C (en) | 2005-04-28 | 2005-04-28 | Production of superfine calcium carbonate from carbide slag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100390064C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9902652B2 (en) | 2014-04-23 | 2018-02-27 | Calera Corporation | Methods and systems for utilizing carbide lime or slag |
| US11377363B2 (en) | 2020-06-30 | 2022-07-05 | Arelac, Inc. | Methods and systems for forming vaterite from calcined limestone using electric kiln |
| US11577965B2 (en) | 2020-02-25 | 2023-02-14 | Arelac, Inc. | Methods and systems for treatment of lime to form vaterite |
| US11939227B2 (en) | 2019-07-21 | 2024-03-26 | Arelac, Inc. | Methods and systems for utilizing calcium compound from calcined limestone |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101362048B (en) * | 2008-09-02 | 2011-01-26 | 李发修 | Method for absorbing carbon dioxide using carbide mud residue and special carbon dioxide absorber |
| CN101838005B (en) * | 2010-04-30 | 2012-02-01 | 汪晋强 | Method for producing sodium chloride and carbon powder and co-producing superfine light calcium carbonate and white carbon black |
| CN101891229A (en) * | 2010-07-19 | 2010-11-24 | 重庆大学 | Method for preparing high-purity calcium carbonate superfine powder from carbide slag |
| KR101304945B1 (en) * | 2011-09-14 | 2013-09-06 | 현대자동차주식회사 | Method for carbon dioxide solidification |
| KR101293955B1 (en) | 2011-09-28 | 2013-08-07 | 기아자동차주식회사 | Method for carbon dioxide solidification |
| CN103170226A (en) * | 2011-12-23 | 2013-06-26 | 杨晓林 | New process for fixing carbon dioxide |
| CN103172100A (en) * | 2011-12-23 | 2013-06-26 | 杨晓林 | Method for preparing calcium carbonate in different grain sizes |
| CN102602973B (en) * | 2012-01-13 | 2014-06-18 | 中国中材国际工程股份有限公司 | Method for synthesizing ultrafine calcium carbonate by utilizing carbide slag |
| WO2013148279A1 (en) * | 2012-03-29 | 2013-10-03 | Calera Corporation | Methods and systems for utilizing carbide lime |
| CN106317455B (en) * | 2016-08-23 | 2019-02-01 | 亿利生态科技有限责任公司 | A kind of preparation method of plastics modified carbide slag filler |
| CN108658114B (en) * | 2017-03-30 | 2020-07-24 | 北京紫光英力化工技术有限公司 | Preparation method of modified calcium salt |
| CN108483478A (en) * | 2018-05-21 | 2018-09-04 | 山西大学 | A method of preparing three kinds of crystal configuration calcium carbonate granules |
| CN108729279B (en) * | 2018-06-07 | 2020-12-01 | 南阳中昊科技有限公司 | New method for recycling waste paper |
| CN108640141B (en) * | 2018-07-23 | 2019-05-24 | 厦门大学 | A method of preparing different crystal system calcium carbonate |
| CN110078107A (en) * | 2019-04-23 | 2019-08-02 | 贵州红星发展股份有限公司 | It is a kind of using quick lime as the Calcium Carbonate Cyclic production method of raw material |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05301713A (en) * | 1992-04-28 | 1993-11-16 | Nittetsu Mining Co Ltd | Production of chain-like calcium carbonate |
| JPH0733433A (en) * | 1993-07-15 | 1995-02-03 | Okutama Kogyo Kk | Calcite type spherical calcium carbonated and production therefor |
| CN1400167A (en) * | 2001-07-27 | 2003-03-05 | 长春华起科技（集团）股份有限公司 | Preparation method of surface modified nano calcium carbonate |
-
2005
- 2005-04-28 CN CNB2005100208301A patent/CN100390064C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05301713A (en) * | 1992-04-28 | 1993-11-16 | Nittetsu Mining Co Ltd | Production of chain-like calcium carbonate |
| JPH0733433A (en) * | 1993-07-15 | 1995-02-03 | Okutama Kogyo Kk | Calcite type spherical calcium carbonated and production therefor |
| CN1400167A (en) * | 2001-07-27 | 2003-03-05 | 长春华起科技（集团）股份有限公司 | Preparation method of surface modified nano calcium carbonate |
Non-Patent Citations (8)
| Title |
|---|
| 电石渣制备高白度板状碳酸钙的研究. 卢忠远，姜彩荣，涂铭旌.西安交通大学学报，第38卷第9期. 2004 |
| 电石渣制备高白度板状碳酸钙的研究. 卢忠远，姜彩荣，涂铭旌.西安交通大学学报，第38卷第9期. 2004 * |
| 纳米CaCO3粉末材料的活化研究. 张生生，金鑫.中国粉体技术，第5期. 2003 |
| 纳米CaCO3粉末材料的活化研究. 张生生，金鑫.中国粉体技术，第5期. 2003 * |
| 纳米碳酸钙的制备及表征. 陈尔凡，鲁云华.硅酸盐学报，第31卷第12期. 2003 |
| 纳米碳酸钙的制备及表征. 陈尔凡，鲁云华.硅酸盐学报，第31卷第12期. 2003 * |
| 纳米碳酸钙表面改性技术及进展. 姜彩荣，卢忠远.西南科技大学学报，第18卷第2期. 2003 |
| 纳米碳酸钙表面改性技术及进展. 姜彩荣，卢忠远.西南科技大学学报，第18卷第2期. 2003 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9902652B2 (en) | 2014-04-23 | 2018-02-27 | Calera Corporation | Methods and systems for utilizing carbide lime or slag |
| US11939227B2 (en) | 2019-07-21 | 2024-03-26 | Arelac, Inc. | Methods and systems for utilizing calcium compound from calcined limestone |
| US11577965B2 (en) | 2020-02-25 | 2023-02-14 | Arelac, Inc. | Methods and systems for treatment of lime to form vaterite |
| US11697598B2 (en) | 2020-02-25 | 2023-07-11 | Arelac, Inc. | Methods and systems for treatment of limestone to form vaterite |
| US11377363B2 (en) | 2020-06-30 | 2022-07-05 | Arelac, Inc. | Methods and systems for forming vaterite from calcined limestone using electric kiln |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1854069A (en) | 2006-11-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100390064C (en) | Production of superfine calcium carbonate from carbide slag | |
| KR102093004B1 (en) | Method for comprehensive recovery of magnesium-containing smelting wastewater | |
| CN102320615B (en) | A kind of take SILICA FUME as the method that precipitated silica is prepared in raw material carbonization | |
| CN101293663B (en) | Novel technique for preparing fine calcium carbonate | |
| CN100567159C (en) | A kind of method for preparing superfine light calcium carbonate | |
| KR101753823B1 (en) | Manufacturing high quality desulfrutization lime method using shell for wet desulfurization | |
| CN104016398B (en) | A kind of method that dilute sulfuric acid utilized in industrial wastewater produces sulfate | |
| CN113620331A (en) | CO (carbon monoxide)2Method for preparing nanosphere aragonite calcium carbonate by mineralizing carbide slag | |
| KR20130045978A (en) | Enhancement of carbonation efficiency from the blast furnace slag | |
| KR102385412B1 (en) | Method for producing high-purity vaterite-type and calcite-type calcium carbonate using indirect carbonation of seawater | |
| CN114555539A (en) | Process for producing calcium oxide or ordinary portland cement from calcium-containing rocks and minerals | |
| CN102126736A (en) | Method for preparing nano-calcium carbonate powder by using soluble carbonate | |
| CN102627308B (en) | Method for producing micron-sized light spherical calcium carbonate by using high-calcium incineration fly ash | |
| CN110577232B (en) | Preparation method of nano calcium carbonate | |
| CN111453754A (en) | Preparation method of high-purity and high-activity nano calcium carbonate | |
| CN103232052A (en) | Method for preparing high-purity calcium carbonate directly from phosphogypsum | |
| WO2021244727A1 (en) | A two stages extraction method for synthesizing precipitated calcium carbonate | |
| CN108439449B (en) | Method for efficiently preparing micron-sized spindle-shaped calcium carbonate | |
| CN103642051A (en) | Method for treating alkali absorbed sulfur dioxide waste liquid by using lignin | |
| CN108689427A (en) | It is a kind of to produce the method and its application that feed grade zinc oxide is recycled in mother liquor from basic zinc chloride | |
| CN113479985B (en) | Method for transformation deamination of ammonia nitrogen wastewater | |
| KR101220711B1 (en) | Stabilization of Free CaO Components in Steel Slag Using Carbon Dioxide | |
| CN1055901C (en) | Combiend production process of potassium carbonate and light magnesium carbonate | |
| CN110589866B (en) | Method for preparing ultrafine powder vaterite by using steel slag | |
| JP2017088424A (en) | Method for producing basic magnesium carbonate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080528 Termination date: 20110428 |