CN104292886A - Method for preparing titanium dioxide-coated ground calcium carbonate powdered inorganic filler - Google Patents
Method for preparing titanium dioxide-coated ground calcium carbonate powdered inorganic filler Download PDFInfo
- Publication number
- CN104292886A CN104292886A CN201410518211.4A CN201410518211A CN104292886A CN 104292886 A CN104292886 A CN 104292886A CN 201410518211 A CN201410518211 A CN 201410518211A CN 104292886 A CN104292886 A CN 104292886A
- Authority
- CN
- China
- Prior art keywords
- titanium dioxide
- water
- calcium carbonate
- coated
- ground limestone
- 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
Links
Landscapes
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
Abstract
The invention discloses a method for preparing a titanium dioxide-coated ground calcium carbonate powdered inorganic filler. The method comprises the following steps: 1, gradually adding 100 parts of 1500-mesh calcium carbonate powder to 100 parts of water, adding acetylacetone which is 1% of total mass of calcium carbonate and water, stirring evenly, preferably, adding titanium dioxide to slurry; 2, slowly dropwise adding 17 parts of butyl titanate to a grinder, hydrolyzing to generate titanium dioxide nanoparticles; coating on the surface of ground calcium carbonate particles; preferably slowly dropwise adding a dispersing agent and a surface modifier during the period of grinding, wherein the surface modifier is a water-based titanate coupling agent; the quantity of the surface modifier is 1% of total mass of the calcium carbonate and water; and 3, filtering the titanium dioxide-coated calcium carbonate, drying and crushing, and finishing drying and crushing of the titanium dioxide-coated ground calcium carbonate in a large flash streaming drier once. The method is simple in technological process, and small in environmental pollution, and the quality of the generated titanium dioxide-coated ground calcium carbonate product is ensured.
Description
Technical field
The present invention relates to the making method of mineral filler, i.e. the preparation method of a kind of coated by titanium dioxide water-ground limestone powdery mineral filler.
Background technology
Water-ground limestone, being called for short coarse whiting, is as calcite, marble, Wingdale grind and form by natural carbonate mineral.Be conventional powdery inorganic filler, be widely used in the industries such as coating, rubber, plastics, papermaking.There is the advantages such as chemical purity is high, Heat stability is good, oil absorbency are low, refractive index is low.But water-ground limestone acid resistance is poor, whiteness is also not as good as titanium dioxide.Thus can not as white filler a large amount of for the field such as plastic-steel, coating.If by ground calcium carbonate dispersing to the too low coating of pH value, calcium carbonate will dissolve, and coating itself also easily foams.In order to improve whiteness and the acid resistance of water-ground limestone, the present invention proposes the preparation method of a kind of coated by titanium dioxide water-ground limestone powdery mineral filler, makes this water-ground limestone meet demand widely.
Summary of the invention
Be find a kind of process program to make the titanium dioxide after being hydrolyzed can coated water-ground limestone about the gordian technique of the preparation of coated by titanium dioxide water-ground limestone powdery mineral filler, the present invention proposes so a kind of preparation method just.
The preparation method of this coated by titanium dioxide water-ground limestone powdery mineral filler, it is characterized in that, step is as follows:
One, the preparation of heavy calcium carbonate slurry:
Mass fraction 100 part of 1500 object calcium carbonate powder is progressively joined in the water of 100 parts, then add calcium carbonate and water total mass 1% methyl ethyl diketone, i.e. AcAc, stirring velocity maintains 1000 revs/min, until stir;
Preferably, be added with titanium dioxide in slurry, its mass fraction is 3-5 powder, and the particle diameter of titanium dioxide is 3000 orders.
Two, water-ground limestone is coated:
The coated of water-ground limestone carries out in shredder, the butyl (tetra) titanate of mass fraction 17 parts is slowly dripped in grinding, after dropping terminates, continue grinding 0.5 hour, in shredder, butyl (tetra) titanate is under the effect of methyl ethyl diketone, and hydrolysis generates titanium dioxide fine particles, and is coated on water-ground limestone particle surface.
Preferably, slowly drip dispersion agent in grinding, the amount of dispersion agent is 1% of calcium carbonate and water total mass, in dispersion agent, polycarboxylate sodium's type dispersion agent SN5040 accounts for 1/3 of dispersion agent quality, and the polymeric dispersant SN5027 of ammonium polyacrylate salt accounts for 2/3 of dispersion agent quality.
Preferably, slowly drip surface-modifying agent in grinding, surface-modifying agent is aqueous titanic acid ester coupling agent, and the amount of surface-modifying agent is 1% of calcium carbonate and water total mass.
Three, the oven dry of water-ground limestone is pulverized:
After grinding, to the Calcium Carbonate Filtration of cladding titanium dioxide particulate, dry, then pulverize; The oven dry of coated by titanium dioxide water-ground limestone is pulverized and is carried out in large-scale flash dryer, dries to pulverize once to complete.
Present invention process process is simple, and little to the pollution of environment, the coated by titanium dioxide water-ground limestone quality product of production is guaranteed.
Embodiment
As follows to the detailed description of the invention below by four embodiments:
Example one,
In stirred pot, stir 500 kg of water, 500 kilograms of water-ground limestones are progressively dispersed in water, add 10 kilograms of methyl ethyl diketones.Stirring velocity maintains 1000 revs/min, after stirring, and enters shredder, is added dropwise to 85 kilograms of tetrabutyl titanates, drips after terminating, continues stirring 0.5 hour.Filter after grinding.Water-ground limestone after filtration, in large-scale flash dryer, is dried pulverizing and is once completed.
Example two,
The preparation method of this coated by titanium dioxide water-ground limestone powdery mineral filler, step is as follows:
One, the preparation of heavy calcium carbonate slurry:
Mass fraction 100 part of 1500 object calcium carbonate powder is progressively joined in the water of 100 parts, then add calcium carbonate and water total mass 1% methyl ethyl diketone, i.e. AcAc, stirring velocity maintains 1000 revs/min, until stir;
Be added with titanium dioxide in slurry, its mass fraction is 4 powder, and the particle diameter of titanium dioxide is 3000 orders simultaneously.
Two, water-ground limestone is coated:
The coated of water-ground limestone carries out in shredder, stirring velocity maintains 1000 revs/min, the butyl (tetra) titanate of slow dropping mass fraction 17 parts, after dropping terminates, continue grinding 0.5 hour, in shredder, butyl (tetra) titanate is under the effect of methyl ethyl diketone, hydrolysis generates titanium dioxide fine particles, and is coated on water-ground limestone particle surface;
Three, the oven dry of water-ground limestone is pulverized:
After grinding, to the Calcium Carbonate Filtration of cladding titanium dioxide particulate, dry, then pulverize; The oven dry of coated by titanium dioxide water-ground limestone is pulverized and is carried out in large-scale flash dryer, dries to pulverize once to complete.
Embodiment three
In step 2, in grinding, slowly drip dispersion agent, the amount of dispersion agent is 1% of calcium carbonate and water total mass, in dispersion agent, polycarboxylate sodium's type dispersion agent SN5040 accounts for 1/3 of dispersion agent quality, and the polymeric dispersant SN5027 of ammonium polyacrylate salt accounts for 2/3 of dispersion agent quality; All the other steps are identical with embodiment two.
Embodiment four
In step 2, in grinding, slowly drip surface-modifying agent, surface-modifying agent is aqueous titanic acid ester coupling agent, and the amount of surface-modifying agent is 1% of calcium carbonate and water total mass; All the other steps are identical with embodiment three.
Claims (4)
1. a preparation method for coated by titanium dioxide water-ground limestone powdery mineral filler, it is characterized in that, step is as follows:
One, the preparation of heavy calcium carbonate slurry:
Mass fraction 100 part of 1500 object calcium carbonate powder is progressively joined in the water of 100 parts, then add calcium carbonate and water total mass 1% methyl ethyl diketone, i.e. AcAc, stirring velocity maintains 1000 revs/min, until stir;
Two, water-ground limestone is coated:
The coated of water-ground limestone carries out in shredder, the butyl (tetra) titanate of mass fraction 17 parts is slowly dripped in grinding, after dropping terminates, continue grinding 0.5 hour, in shredder, butyl (tetra) titanate is under the effect of methyl ethyl diketone, and hydrolysis generates titanium dioxide fine particles, and is coated on water-ground limestone particle surface;
Three, the oven dry of water-ground limestone is pulverized:
After grinding, to the Calcium Carbonate Filtration of cladding titanium dioxide particulate, dry, then pulverize; The oven dry of coated by titanium dioxide water-ground limestone is pulverized and is carried out in large-scale flash dryer, dries to pulverize once to complete.
2. the preparation method of a kind of coated by titanium dioxide water-ground limestone powdery according to claim 1 mineral filler, is characterized in that, in step one, be added with titanium dioxide in slurry, and its mass fraction is 3-5 powder, and the particle diameter of titanium dioxide is 3000 orders.
3. the preparation method of a kind of coated by titanium dioxide water-ground limestone powdery according to claim 2 mineral filler, it is characterized in that, in step 2, slowly dispersion agent is dripped in grinding, the amount of dispersion agent is 1% of calcium carbonate and water total mass, in dispersion agent, polycarboxylate sodium's type dispersion agent SN5040 accounts for 1/3 of dispersion agent quality, and the polymeric dispersant SN5027 of ammonium polyacrylate salt accounts for 2/3 of dispersion agent quality.
4. the preparation method of a kind of coated by titanium dioxide water-ground limestone powdery according to claim 3 mineral filler, it is characterized in that, in step 2, slowly surface-modifying agent is dripped in grinding, surface-modifying agent is aqueous titanic acid ester coupling agent, and the amount of surface-modifying agent is 1% of calcium carbonate and water total mass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410518211.4A CN104292886B (en) | 2014-10-01 | 2014-10-01 | The making method of a kind of coated by titanium dioxide water-ground limestone powdery mineral filler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410518211.4A CN104292886B (en) | 2014-10-01 | 2014-10-01 | The making method of a kind of coated by titanium dioxide water-ground limestone powdery mineral filler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104292886A true CN104292886A (en) | 2015-01-21 |
| CN104292886B CN104292886B (en) | 2015-12-30 |
Family
ID=52312853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410518211.4A Active CN104292886B (en) | 2014-10-01 | 2014-10-01 | The making method of a kind of coated by titanium dioxide water-ground limestone powdery mineral filler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104292886B (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105032579A (en) * | 2015-06-03 | 2015-11-11 | 安徽省铜陵县牛山矿业有限责任公司 | Envelope TiO2 slurry continuous grinding device |
| CN105778569A (en) * | 2016-05-05 | 2016-07-20 | 中钛集团洛阳市裕星化工有限公司 | Method for preparing composite titanium dioxide powder with titanium-coated light calcium carbonate |
| CN106752105A (en) * | 2016-12-16 | 2017-05-31 | 安徽北马科技有限公司 | A kind of span of coated by titanium dioxide carrys out polyimide modified pearl filler |
| CN108395735A (en) * | 2018-03-30 | 2018-08-14 | 江苏新亿源环保科技有限公司 | A kind of preparation method of composite titanium dioxide |
| CN109679302A (en) * | 2018-12-19 | 2019-04-26 | 中广核俊尔新材料有限公司 | A kind of water-fastness PBT zipper material of high-modulus and its application |
| CN110527340A (en) * | 2019-07-19 | 2019-12-03 | 苏州冰心文化用品有限公司 | A kind of traditional Chinese Painting magnetic paint and preparation method thereof |
| CN112876878A (en) * | 2021-01-26 | 2021-06-01 | 江西势通钙业有限公司 | Ultrahigh-whiteness pigment-grade core-shell structure type nano calcium carbonate and preparation method thereof |
| CN114656803A (en) * | 2022-05-06 | 2022-06-24 | 广西凤山宏泰矿业有限责任公司 | Heavy calcium carbonate composite filler and preparation method thereof |
| CN114716846A (en) * | 2021-01-04 | 2022-07-08 | 北京橡胶工业研究设计院有限公司 | Method for preparing composite titanium dioxide by using titanium dioxide coated calcium carbonate |
| CN115109437A (en) * | 2022-07-12 | 2022-09-27 | 龙佰禄丰钛业有限公司 | Preparation method of composite titanium dioxide |
| CN115873423A (en) * | 2022-12-29 | 2023-03-31 | 贺州学院 | Method for preparing modified calcium carbonate powder by using tetrabutyl titanate |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101549895A (en) * | 2009-04-23 | 2009-10-07 | 同济大学 | Preparation method of carbon aerogel load titanium dioxide electrodes and application thereof |
| CN103436052A (en) * | 2013-09-07 | 2013-12-11 | 郴州四方立投资有限公司 | Preparation method of high-whiteness and high-activity nano calcium carbonate |
-
2014
- 2014-10-01 CN CN201410518211.4A patent/CN104292886B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101549895A (en) * | 2009-04-23 | 2009-10-07 | 同济大学 | Preparation method of carbon aerogel load titanium dioxide electrodes and application thereof |
| CN103436052A (en) * | 2013-09-07 | 2013-12-11 | 郴州四方立投资有限公司 | Preparation method of high-whiteness and high-activity nano calcium carbonate |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105032579A (en) * | 2015-06-03 | 2015-11-11 | 安徽省铜陵县牛山矿业有限责任公司 | Envelope TiO2 slurry continuous grinding device |
| CN105778569A (en) * | 2016-05-05 | 2016-07-20 | 中钛集团洛阳市裕星化工有限公司 | Method for preparing composite titanium dioxide powder with titanium-coated light calcium carbonate |
| CN105778569B (en) * | 2016-05-05 | 2017-10-31 | 中钛集团洛阳市裕星化工有限公司 | A kind of preparation method of the composite titanium dioxide of titanium cladding precipitated calcium carbonate |
| CN106752105A (en) * | 2016-12-16 | 2017-05-31 | 安徽北马科技有限公司 | A kind of span of coated by titanium dioxide carrys out polyimide modified pearl filler |
| CN108395735A (en) * | 2018-03-30 | 2018-08-14 | 江苏新亿源环保科技有限公司 | A kind of preparation method of composite titanium dioxide |
| CN109679302A (en) * | 2018-12-19 | 2019-04-26 | 中广核俊尔新材料有限公司 | A kind of water-fastness PBT zipper material of high-modulus and its application |
| CN110527340A (en) * | 2019-07-19 | 2019-12-03 | 苏州冰心文化用品有限公司 | A kind of traditional Chinese Painting magnetic paint and preparation method thereof |
| CN114716846A (en) * | 2021-01-04 | 2022-07-08 | 北京橡胶工业研究设计院有限公司 | Method for preparing composite titanium dioxide by using titanium dioxide coated calcium carbonate |
| CN112876878A (en) * | 2021-01-26 | 2021-06-01 | 江西势通钙业有限公司 | Ultrahigh-whiteness pigment-grade core-shell structure type nano calcium carbonate and preparation method thereof |
| CN114656803A (en) * | 2022-05-06 | 2022-06-24 | 广西凤山宏泰矿业有限责任公司 | Heavy calcium carbonate composite filler and preparation method thereof |
| CN115109437A (en) * | 2022-07-12 | 2022-09-27 | 龙佰禄丰钛业有限公司 | Preparation method of composite titanium dioxide |
| CN115873423A (en) * | 2022-12-29 | 2023-03-31 | 贺州学院 | Method for preparing modified calcium carbonate powder by using tetrabutyl titanate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104292886B (en) | 2015-12-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104292886B (en) | The making method of a kind of coated by titanium dioxide water-ground limestone powdery mineral filler | |
| CN102985495B (en) | The manufacture method of mineral material high solids suspensions | |
| CN103980739B (en) | A kind of part replaces multiple modified ultra-fine non-metallic powder of titanium dioxide and preparation method thereof | |
| CN104785349A (en) | Efficient preparation method for nano-scale solid powder | |
| CN102351230A (en) | Preparation method of ultrafine active heavy calcium carbonate | |
| CN108440995A (en) | A kind of method that wet method prepares modified micro-nano flame retardant of magnesium hydroxide | |
| CN104479410A (en) | Calcium carbonate surface treatment method | |
| CN102260422B (en) | Method for preparing TiO2/powdered quartz composite powder material | |
| CN104403266B (en) | Calcium carbonate powder modifying agent containing amino resins | |
| CN104556078A (en) | Method for producing calcined kaolin with high covering power | |
| CN101885926A (en) | Method for producing rutile type titanium white powder with high hiding power | |
| CN101210117A (en) | Sericite/TiO2 composite material with white pigment property | |
| CN101418139A (en) | Magnesium hydroxide/TiO2 composite material with flame resistance property and pigment | |
| CN103525136A (en) | Preparation method of ultrafine modified ground calcium carbonate | |
| CA2329824C (en) | Very high solids tio2 slurries | |
| CN105295459A (en) | Ecological shell powder wall paint | |
| CN102660149A (en) | Method for preparing high-fineness calcium carbonate functional composite powder | |
| CN108070280A (en) | A kind of preparation method of silicon dioxide microsphere-titanium dioxide composite powder pigment | |
| CN104129977B (en) | A kind of preparation method of hot pressurized water valve block special aluminium oxide pelletizing | |
| CN102304871B (en) | Production method for coating pigments on white board | |
| CN106590063A (en) | Preparing method of water-based high-dispersity titanium dioxide | |
| CN105295460A (en) | Ecological shell powder coating | |
| CN108752979A (en) | A kind of method that wet method prepares super fine calcium carbonate | |
| CN104194402A (en) | Preparation method of ultrafine calcium carbonate | |
| CN104945955A (en) | Modified calcium sulphate anticorrosive pigment as well as preparation method and application thereof |
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 |