CN104129809A - Acidified calcium carbonate - Google Patents
Acidified calcium carbonate Download PDFInfo
- Publication number
- CN104129809A CN104129809A CN201410358756.3A CN201410358756A CN104129809A CN 104129809 A CN104129809 A CN 104129809A CN 201410358756 A CN201410358756 A CN 201410358756A CN 104129809 A CN104129809 A CN 104129809A
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- CN
- China
- Prior art keywords
- calcium carbonate
- acidifying
- batching
- hydrochloric acid
- sheet thing
- 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.)
- Granted
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- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 title claims abstract description 199
- 229910000019 calcium carbonate Inorganic materials 0.000 title claims abstract description 99
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 33
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims abstract description 18
- 229960000892 attapulgite Drugs 0.000 claims abstract description 10
- 239000004927 clay Substances 0.000 claims abstract description 10
- 238000004519 manufacturing process Methods 0.000 claims abstract description 10
- 230000020477 pH reduction Effects 0.000 claims abstract description 10
- 229910052625 palygorskite Inorganic materials 0.000 claims abstract description 10
- 229910000029 sodium carbonate Inorganic materials 0.000 claims abstract description 9
- 239000004115 Sodium Silicate Substances 0.000 claims abstract description 8
- 229920002451 polyvinyl alcohol Polymers 0.000 claims abstract description 8
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052911 sodium silicate Inorganic materials 0.000 claims abstract description 8
- 239000004372 Polyvinyl alcohol Substances 0.000 claims abstract description 7
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 6
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 6
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000000203 mixture Substances 0.000 claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 239000000428 dust Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 7
- 238000000227 grinding Methods 0.000 claims description 4
- 235000012054 meals Nutrition 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 8
- 239000004615 ingredient Substances 0.000 abstract description 3
- 239000000843 powder Substances 0.000 abstract description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 150000001875 compounds Chemical class 0.000 abstract description 2
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 abstract 2
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 abstract 2
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 abstract 2
- UFVKGYZPFZQRLF-UHFFFAOYSA-N hydroxypropyl methyl cellulose Chemical compound OC1C(O)C(OC)OC(CO)C1OC1C(O)C(O)C(OC2C(C(O)C(OC3C(C(O)C(O)C(CO)O3)O)C(CO)O2)O)C(CO)O1 UFVKGYZPFZQRLF-UHFFFAOYSA-N 0.000 abstract 2
- 238000003801 milling Methods 0.000 abstract 2
- 239000004566 building material Substances 0.000 abstract 1
- 230000007613 environmental effect Effects 0.000 abstract 1
- 239000004088 foaming agent Substances 0.000 abstract 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 229910021532 Calcite Inorganic materials 0.000 description 2
- 235000019738 Limestone Nutrition 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000006028 limestone Substances 0.000 description 2
- 239000004579 marble Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 230000009967 tasteless effect Effects 0.000 description 2
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 1
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 1
- -1 Wingdale Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000000274 adsorptive effect Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 159000000007 calcium salts Chemical class 0.000 description 1
- 235000011089 carbon dioxide Nutrition 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
Abstract
The invention discloses acidified calcium carbonate. The main point of a technical scheme provided by the invention is that acidified calcium carbonate ingredients comprise calcium carbonate, attapulgite clay, magnesium oxide, hydrochloric acid, fast-dissolving sodium silicate, polyvinyl alcohol, hydroxypropyl methyl cellulose and sodium carbonate. The acidified calcium carbonate ingredients are input into a mill for milling, and powder obtained after milling is the acidified calcium carbonate. A production method for the acidified calcium carbonate adopts a first step of acidification and a second step of compound batching and can prevent a chemical reaction of hydrochloric acid with fast-dissolving sodium silicate, polyvinyl alcohol, hydroxypropyl methyl cellulose and sodium carbonate; after acidification of calcium carbonate, the pH value of calcium carbonate is controlled to be 5.5 to 7.0, and the utilization rate of calcium carbonate can be increased. The acidified calcium carbonate has the characteristics of good hygroscopicity, plasticity and caking performance and is applicable to production of environmental protection materials, garden materials, building materials, foaming agents and fire-fighting products.
Description
Technical field
The present invention relates to acidification, be specifically related to the calcium carbonate after a kind of acidifying.
Background technology
Calcium carbonate is a kind of mineral compound, is commonly called as lime stone, Wingdale, stone flour, marble etc., is neutral, substantially water insoluble, is dissolved in hydrochloric acid.It is common material on the earth, is present in the rocks such as aragonite, calcite, chalk, limestone, marble, Tufa, and be also the main component of animal skeleton or shell.Calcium carbonate is important material of construction, and industrial purposes is very wide.Calcium carbonate by calcium ion and carbanion in conjunction with generating, so be calcium salt be also carbonate.
In order to improve the application quality of calcium carbonate, need to carry out acidification to calcium carbonate.
Summary of the invention
The object of the invention is to overcome weak point in prior art, the calcium carbonate after a kind of acidifying is provided.
Calcium carbonate batching after acidifying is comprised of calcium carbonate, attapulgite clay, magnesium oxide, hydrochloric acid, quick dissolved sodium silicate, polyvinyl alcohol, Vltra tears and sodium carbonate.
The production method of the calcium carbonate after acidifying: by abrasive dust in the calcium carbonate batching input grinding machine after acidifying, the meal after abrasive dust is the calcium carbonate after acidifying.
Calcium carbonate is with mechanical means, directly to pulverize natural calcite, Wingdale, chalk, shell etc. just can make.Calcium carbonate is a kind of white powder, and odorless is tasteless, and dew is put in air unchanged.Calcium carbonate is met dilute acetic acid, dilute hydrochloric acid, rare nitric acid generation intumescence, and dissolves, and thermal degradation is calcium oxide and carbonic acid gas, and the present invention selects the calcium carbonate after pulverizing, particle fineness≤0.1 millimeter of calcium carbonate.
Attapulgite clay has unique layer chain-like structure feature, and crystal is needle-like, fibrous or fiber collection shape.Attapulgite clay has unique dispersion, high temperature resistant, the anti-good colloidal property such as saline and alkaline and higher adsorptive power, and has certain plasticity-and cohesive force, and the present invention selects particle fineness≤5 millimeter of attapulgite clay.
Magnesium oxide has the general character of basic oxide, belongs to gelling material, can improve the colloidal property of attapulgite clay.
It is 37% concentrated hydrochloric acid that hydrochloric acid is selected concentration.
Quick dissolved sodium silicate is white pulverulent material, can be dissolved in fast water, has that cohesive force is strong, intensity is higher, acid resistance, good heat resistance, the feature of alkali resistance and poor water resistance.
Polyethenol series white solid, that external form is divided is cotton-shaped, particulate state, Powdered three kinds; Nonpoisonous and tasteless, particulate state can be dissolved in 80--90 ℃ of water, pulverously after other powders pre-dispersed, can dissolve at normal temperatures.There is good viscosity, polymerizability, cohesiveness and water-retentivity.
Vltra tears has thickening capabilities, salt discharge, pH stability, water-retentivity, dimensional stability, good film-forming properties and the feature such as resistance to enzyme, dispersiveness and cohesiveness widely.
Sodium carbonate has the general character and the thermostability of salt, soluble in water, and its aqueous solution is alkalescence, in the present invention for adjusting the calcium carbonate pH value after acidifying.
The present invention is achieved by following technical proposals:
1, the batching of the calcium carbonate after acidifying is comprised of following component by weight percentage: the calcium carbonate work in-process 90～98% after acidifying, quick dissolved sodium silicate 0.1～5%, polyvinyl alcohol 0.1～5%, Vltra tears 0.01～3% and sodium carbonate 0～3%.
2, the production method of the calcium carbonate after acidifying: by abrasive dust in the calcium carbonate batching input grinding machine after acidifying, particle fineness≤0.074 millimeter, the meal after abrasive dust is the calcium carbonate finished product after acidifying.
3, the half-finished production method of the calcium carbonate after acidifying: stir in the stirrer (1) first calcium carbonate mixture input having been turned round, then dilute hydrochloric acid is slowly added and carries out acidification in calcium carbonate mixture; (2) by the calcium carbonate mixture after acidification, by twin rollers, push as calcium carbonate sheet thing thickness≤3 millimeter of calcium carbonate sheet thing; (3) calcium carbonate sheet thing is transported to roasting in rotary type stoving oven, roasting time is 1～3 hour, maturing temperature is controlled at 250～350 ℃, calcium carbonate sheet thing water content≤5% after roasting, calcium carbonate sheet thing after roasting is the calcium carbonate work in-process after acidifying, and PCm is weight percentage.
4, the batching of calcium carbonate sheet thing is comprised of following component by weight percentage: calcium carbonate mixture 75～95% and dilute hydrochloric acid 5～25%.
5, the batching of calcium carbonate mixture is comprised of following component by weight percentage: calcium carbonate 68～92%, attapulgite clay 7～30% and magnesium oxide 0.1～3%.
6, the batching of dilute hydrochloric acid is comprised of following component by weight percentage: the concentrated hydrochloric acid 1～25% that concentration is 37% and water 75～99%, the concentrated hydrochloric acid per-cent that concentration is 37% is weight percentage.
The production method of the calcium carbonate after acidifying takes first acidifying to carry out compounding ingredient again, can avoid hydrochloric acid and quick dissolved sodium silicate, polyvinyl alcohol, Vltra tears and sodium carbonate generation chemical reaction, give full play to raw-material characteristic separately in batching, and obtain complementation, guarantee the calcium carbonate inner quality after acidifying.
According to the needs of quality product, adopt sodium carbonate to adjust the calcium carbonate pH value after acidifying, method is simple.
After the acidified processing of calcium carbonate, pH value is controlled at 5.5～7.0, can improve the utilization ratio of calcium carbonate.
Calcium carbonate after acidifying has good water absorbability, plasticity-and close-burning feature.
Calcium carbonate after acidifying is applicable to produce environment-friendly materials, material of construction, whipping agent and fire product.
Embodiment
Below in conjunction with embodiment, the invention will be further described:
1, the batching of the calcium carbonate after acidifying is comprised of following component by weight percentage: the calcium carbonate work in-process 96% after acidifying, quick dissolved sodium silicate 2%, polyvinyl alcohol 1.5%, Vltra tears 0.49% and sodium carbonate 0.01%.
2, the production method of the calcium carbonate after acidifying: by abrasive dust in the calcium carbonate batching input grinding machine after acidifying, particle fineness≤0.074 millimeter, the meal after abrasive dust is the calcium carbonate finished product after acidifying.
3, the half-finished production method of the calcium carbonate after acidifying: stir in the stirrer (1) first calcium carbonate mixture input having been turned round, then dilute hydrochloric acid is slowly added and carries out acidification in calcium carbonate mixture; (2) by the calcium carbonate mixture after acidification, by twin rollers, push as calcium carbonate sheet thing thickness≤3 millimeter of calcium carbonate sheet thing; (3) calcium carbonate sheet thing is transported to roasting in rotary type stoving oven, roasting time is 2 hours, and maturing temperature is controlled at 300～350 ℃, calcium carbonate sheet thing water content≤5% after roasting, and the calcium carbonate sheet thing after roasting is the calcium carbonate work in-process after acidifying.
4, the batching of calcium carbonate sheet thing is comprised of following component by weight percentage: calcium carbonate mixture 86% and dilute hydrochloric acid 14%.
5, the batching of calcium carbonate mixture is comprised of following component by weight percentage: calcium carbonate 82%, attapulgite clay 16% and magnesium oxide 2%.
6, the batching of dilute hydrochloric acid is comprised of following component by weight percentage: the concentrated hydrochloric acid 10% that concentration is 37% and water 90%.
Claims (7)
1. the calcium carbonate after an acidifying, it is characterized in that, the calcium carbonate batching after acidifying is comprised of following component by weight percentage: the calcium carbonate work in-process 90～98% after acidifying, quick dissolved sodium silicate 0.1～5%, polyvinyl alcohol 0.1～5%, Vltra tears 0.01～3% and sodium carbonate 0～3%.
2. the production method of the calcium carbonate after acidifying according to claim 1, is characterized in that, by abrasive dust in the calcium carbonate batching input grinding machine after acidifying, and particle fineness≤0.074 millimeter, the meal after abrasive dust is the calcium carbonate finished product after acidifying.
3. the half-finished production method of calcium carbonate after acidifying according to claim 1, is characterized in that, stirs, then dilute hydrochloric acid is slowly added and in calcium carbonate mixture, carries out acidification in the stirrer (1) first calcium carbonate mixture input having been turned round; (2) by the calcium carbonate mixture after acidification, by twin rollers, push as calcium carbonate sheet thing thickness≤3 millimeter of calcium carbonate sheet thing; (3) calcium carbonate sheet thing is transported to roasting in rotary type stoving oven, roasting time is 1～3 hour, maturing temperature is controlled at 250～350 ℃, calcium carbonate sheet thing water content≤5% after roasting, and the calcium carbonate sheet thing after roasting is the calcium carbonate work in-process after acidifying.
4. the batching of calcium carbonate sheet thing according to claim 3, is characterized in that, the batching of calcium carbonate sheet thing is comprised of following component by weight percentage: calcium carbonate mixture 75～95% and dilute hydrochloric acid 5～25%.
5. the batching of calcium carbonate mixture according to claim 4, is characterized in that, the batching of calcium carbonate mixture is comprised of following component by weight percentage: calcium carbonate 68～92%, attapulgite clay 7～30% and magnesium oxide 0.1～3%.
6. the batching of dilute hydrochloric acid according to claim 4, is characterized in that, the batching of dilute hydrochloric acid is comprised of following component by weight percentage: the concentrated hydrochloric acid 1～25% that concentration is 37% and water 75～99%.
7. the batching of calcium carbonate mixture according to claim 5, is characterized in that particle fineness≤0.1 millimeter of calcium carbonate, particle fineness≤5 millimeter of attapulgite clay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410358756.3A CN104129809B (en) | 2014-07-27 | 2014-07-27 | Calcium carbonate after acidifying |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410358756.3A CN104129809B (en) | 2014-07-27 | 2014-07-27 | Calcium carbonate after acidifying |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104129809A true CN104129809A (en) | 2014-11-05 |
| CN104129809B CN104129809B (en) | 2016-02-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410358756.3A Active CN104129809B (en) | 2014-07-27 | 2014-07-27 | Calcium carbonate after acidifying |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104129809B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104478267A (en) * | 2014-12-12 | 2015-04-01 | 宜兴天力化工纳米科技有限公司 | Calcium carbonate and sodium carbonate complexing agent and preparation method thereof |
| CN106188628A (en) * | 2016-07-13 | 2016-12-07 | 凤台精兴生物科技有限公司 | Span after a kind of acidifying carrys out polyimide modified pearl filler |
| CN114751716A (en) * | 2022-03-30 | 2022-07-15 | 深圳大学 | Artificial stone and preparation method thereof |
| CN115386247A (en) * | 2022-08-26 | 2022-11-25 | 马鞍山顾地塑胶有限公司 | In-situ surface coating modified calcium carbonate filler and preparation method and application thereof |
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|---|---|---|---|---|
| CN101531495A (en) * | 2009-03-27 | 2009-09-16 | 许盛英 | Attapulgite outer wall emulsion varnish |
| CN101705077A (en) * | 2009-11-17 | 2010-05-12 | 许庆华 | Production method of attapulgite snowmelt agent |
| US20120128572A1 (en) * | 2009-06-12 | 2012-05-24 | Nordkalk Oy Ab | Method of producing calcium carbonate |
| CN102659160A (en) * | 2012-05-02 | 2012-09-12 | 浙江省建德市正发碳酸钙有限公司 | Method for preparing low alkalinity calcium carbonate |
-
2014
- 2014-07-27 CN CN201410358756.3A patent/CN104129809B/en active Active
Patent Citations (4)
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|---|---|---|---|---|
| CN101531495A (en) * | 2009-03-27 | 2009-09-16 | 许盛英 | Attapulgite outer wall emulsion varnish |
| US20120128572A1 (en) * | 2009-06-12 | 2012-05-24 | Nordkalk Oy Ab | Method of producing calcium carbonate |
| CN101705077A (en) * | 2009-11-17 | 2010-05-12 | 许庆华 | Production method of attapulgite snowmelt agent |
| CN102659160A (en) * | 2012-05-02 | 2012-09-12 | 浙江省建德市正发碳酸钙有限公司 | Method for preparing low alkalinity calcium carbonate |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104478267A (en) * | 2014-12-12 | 2015-04-01 | 宜兴天力化工纳米科技有限公司 | Calcium carbonate and sodium carbonate complexing agent and preparation method thereof |
| CN106188628A (en) * | 2016-07-13 | 2016-12-07 | 凤台精兴生物科技有限公司 | Span after a kind of acidifying carrys out polyimide modified pearl filler |
| CN114751716A (en) * | 2022-03-30 | 2022-07-15 | 深圳大学 | Artificial stone and preparation method thereof |
| CN115386247A (en) * | 2022-08-26 | 2022-11-25 | 马鞍山顾地塑胶有限公司 | In-situ surface coating modified calcium carbonate filler and preparation method and application thereof |
| CN115386247B (en) * | 2022-08-26 | 2023-06-27 | 马鞍山顾地塑胶有限公司 | In-situ surface-coated modified calcium carbonate filler and preparation method and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104129809B (en) | 2016-02-17 |
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