CN105524494A - Titanium dioxide-coated composite powder material - Google Patents
Titanium dioxide-coated composite powder material Download PDFInfo
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- CN105524494A CN105524494A CN201410748057.XA CN201410748057A CN105524494A CN 105524494 A CN105524494 A CN 105524494A CN 201410748057 A CN201410748057 A CN 201410748057A CN 105524494 A CN105524494 A CN 105524494A
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Abstract
The invention relates to a titanium dioxide-coated composite powder material. The titanium dioxide-coated composite powder material comprises titanium dioxide and mineral powder, the mineral powder is used as a matrix, the matrix is coated with the titanium dioxide, a ratio of the mineral powder to the titanium dioxide is 1-2: 1, the mineral powder comprises one of calcite, kaolin, calcined kaolin, barite, silica fume and white carbon black and the titanium dioxide is rutile-type titanium dioxide. The mineral powder and the titanium dioxide are compounded so that a titanium dioxide price is greatly reduced, titanium dioxide use effects are not influenced and the production process is simple, is suitable for large-scale production and satisfies consumer demands.
Description
Technical field
The present invention relates to composite powder material production technical field, particularly relate to a kind of titanium dioxide cladded type composite powder material.
Background technology
Titanium dioxide is considered to a kind of white pigment that performance is best in the world at present, be widely used in coating, plastics, papermaking, printing-ink, chemical fibre, rubber, the industry such as makeup, in the last few years, along with expanding economy, drive the development of building and coating relevant industries, what make titanium dioxide needs increasing day by day, so just drive the price rises of titanium dioxide, and titanium dioxide resource is increasingly short on the other hand, and complex production process, production cost is high, the demand of consumers in general cannot be met, need to develop a kind of titanium dioxide cladded type composite powder material for this reason, to meet the demand of consumers in general.
Summary of the invention
The object of the invention is to overcome present titanium dioxide price high, consumers in general's demand cannot be met.
In order to solve the problem, technical scheme of the present invention is a kind of titanium dioxide cladded type composite powder material, and described titanium dioxide cladded type composite powder material comprises titanium dioxide and mineral powder, and be wherein matrix with mineral powder, outside is coated with titanium dioxide.
Further, described mineral powder is the one in calcite, kaolin, calcined kaolin, barite, wollastonite, white carbon black.
Further, described titanium dioxide is Rutile type Titanium Dioxide.
Further, its preparation technology is:
1) preparation of mineral substrate:
1. the dispersion of mineral substrate: add tap water, mineral powder and the sodium polyacrylate solution for mineral powder quality 0.3% ~ 0.5% used in material-compound tank successively, then mix and blend 3 ~ 5min, obtain homodisperse mineral slurry, wherein the mass ratio of tap water and mineral powder is 1 ~ 1.5:1;
2. the grinding of mineral substrate: homodisperse mineral slurry is squeezed in horizontal sand mill by pump and pipeline, grinding slurry, after having ground, choose the slurry of 25% and be sent in homogenizing tank, 75% remaining slurry carries out filtering, dry, make particle diameter be less than 2 microns reach more than 87%, then these powders are collected stand-by
2) preparation of mineral extenders: the slurry in step 2. middle feeding homogenizing tank is ground again, slurry is sent in high flow capacity horizontal sand mill, repeatedly carry out sanded back and forth, then dry, make particle diameter be less than 2 microns reach more than 97%, then these powders are collected stand-by;
3) preparation of titanium dioxide:
1. the dispersion of titanium dioxide: add tap water, titanium dioxide raw material and the sodium polyacrylate solution for titanium dioxide raw materials quality 0.3% ~ 0.5% used in material-compound tank successively, then mix and blend 3 ~ 5min, obtain homodisperse mineral slurry, wherein the mass ratio of tap water and titanium dioxide raw material is 1 ~ 1.5:1;
2. the grinding of titanium dioxide: squeeze in horizontal sand mill by pump and pipeline by homodisperse titanium dioxide slurry, then carries out filtering, dry, until particle diameter be less than 2 microns reach more than 97%, then this powder is collected stand-by;
4) compound of powder: by step 1), step 2), step 3) collect the powder that obtains and mix, then Zinic stearas mix and blend 1 ~ 2min is added, make the powder of compound, the amount of the Zinic stearas wherein added is 0.5% ~ 0.8% of the powder quality of compound;
5) the slurry preparation of composite granule: the powder of compound is sent into vertical sand milling machine for cutting charge into pieces, then water, silane coupling agent is added, obtain mineral and titanium dioxide composite granule slurry, wherein the quality of the powder of water and compound is 1:1, and silane coupling agent is 0.2% ~ 0.4% of composite granule quality;
6) homogenization process of composite granule: by step 4) in the mineral that obtain and titanium dioxide composite granule slurry send in homogenizing tank, then stir 1 ~ 3min, leave standstill 5 ~ 7min;
7) dry and packaging: send in drying machine carry out drying by the slurries filtration after homogenizing, again, then carry out breaing up process, finally pack by the specification of 25kg/ bag.
Beneficial effect of the present invention: adopt mineral powder and titanium dioxide compound, makes the price of titanium dioxide greatly reduce on the one hand, and does not affect the result of use of titanium dioxide, and this production technique is simple on the other hand, can produce on a large scale, can meet consumers in general's demand.
Embodiment
Embodiment 1
Titanium dioxide cladded type composite powder material, described titanium dioxide cladded type composite powder material comprises titanium dioxide and mineral powder, mineral powder is the one in calcite, kaolin, calcined kaolin, barite, wollastonite, white carbon black, titanium dioxide is Rutile type Titanium Dioxide, and the preparation technology of titanium dioxide cladded type composite powder material comprises:
1) preparation of mineral substrate
1. the dispersion of mineral substrate: add tap water 40kg, mineral powder 40kg and the sodium polyacrylate solution for mineral powder quality 0.12kg used in material-compound tank successively, then mix and blend 3min, obtains homodisperse mineral slurry;
2. the grinding of mineral substrate: homodisperse mineral slurry is squeezed in horizontal sand mill by pump and pipeline, grinding slurry, after having ground, choose the slurry of 20kg and be sent in homogenizing tank, remaining 60kg slurry carries out drying, in order to make particle diameter be less than 2 microns reach more than 87%, adopt and repeatedly carry out sanded, when particle diameter be less than 2 microns do not reach more than 87%, here adopt again to be sent in horizontal sand mill by 60kg slurry and carry out grinding slurry, until particle diameter be less than 2 microns reach more than 87%, then these powders are collected stand-by,
2) preparation of mineral extenders: the 20kg slurry in step 2. middle feeding homogenizing tank is ground again, slurry is sent in high flow capacity horizontal sand mill, repeatedly carry out sanded back and forth, then dry, in order to make particle diameter be less than 2 microns reach more than 97%, adopt and repeatedly carry out sanded, when particle diameter be less than 2 microns do not reach more than 97%, here adopt again to be sent in high flow capacity horizontal sand mill by 20kg slurry and carry out grinding slurry, until particle diameter be less than 2 microns reach more than 97%, then these powders are collected stand-by;
3) preparation of titanium dioxide
1. the dispersion of titanium dioxide: the sodium polyacrylate solution adding tap water 40kg, titanium dioxide raw material 40kg and 0.12kg in material-compound tank successively, then mix and blend 3min, obtains homodisperse mineral slurry;
2. the grinding of titanium dioxide: homodisperse titanium dioxide slurry is squeezed in horizontal sand mill by pump and pipeline, in order to make particle diameter be less than 2 microns reach more than 97%, adopt and repeatedly carry out sanded, when particle diameter be less than 2 microns do not reach more than 97%, here adopt again to be sent in horizontal sand mill by 80kg slurry and carry out grinding slurry, until particle diameter be less than 2 microns reach more than 97%, then this powder is collected stand-by;
4) compound of powder: by step 1), step 2), step 3) collect the powder that obtains and mix, add up to 80kg, then add 0.4kg Zinic stearas mix and blend 1min, make the powder of compound;
5) the slurry preparation of composite granule: the powder of compound is sent into vertical sand milling machine for cutting charge into pieces, then adds 80kg water, 0.16kg silane coupling agent, obtain mineral and titanium dioxide composite granule slurry;
6) homogenization process of composite granule: by step 4) in the mineral that obtain and titanium dioxide composite granule slurry send in homogenizing tank, then stir 1min, leave standstill 5min;
7) dry and packaging: send in drying machine carry out drying by the slurries filtration after homogenizing, again, then carry out breaing up process, finally pack by the specification of 25kg/ bag.
Embodiment 2
Titanium dioxide cladded type composite powder material, described titanium dioxide cladded type composite powder material comprises titanium dioxide and mineral powder, mineral powder is the one in calcite, kaolin, calcined kaolin, barite, wollastonite, white carbon black, titanium dioxide is Rutile type Titanium Dioxide, and the preparation technology of titanium dioxide cladded type composite powder material comprises:
1) preparation of mineral substrate
1. the dispersion of mineral substrate: add tap water 80kg, mineral powder 60kg and the sodium polyacrylate solution for mineral powder quality 0.24kg used in material-compound tank successively, then mix and blend 4min, obtains homodisperse mineral slurry;
2. the grinding of mineral substrate: homodisperse mineral slurry is squeezed in horizontal sand mill by pump and pipeline, grinding slurry, after having ground, choose the slurry of 35kg and be sent in homogenizing tank, remaining 115kg slurry carries out drying, in order to make particle diameter be less than 2 microns reach more than 87%, adopt and repeatedly carry out sanded, when particle diameter be less than 2 microns do not reach more than 87%, here adopt again to be sent in horizontal sand mill by 115kg slurry and carry out grinding slurry, until particle diameter be less than 2 microns reach more than 87%, then these powders are collected stand-by,
2) preparation of mineral extenders: the 35kg slurry in step 2. middle feeding homogenizing tank is ground again, slurry is sent in high flow capacity horizontal sand mill, repeatedly carry out sanded back and forth, then dry, in order to make particle diameter be less than 2 microns reach more than 97%, adopt and repeatedly carry out sanded, when particle diameter be less than 2 microns do not reach more than 97%, here adopt again to be sent in high flow capacity horizontal sand mill by 35kg slurry and carry out grinding slurry, until particle diameter be less than 2 microns reach more than 97%, then these powders are collected stand-by;
3) preparation of titanium dioxide
1. the dispersion of titanium dioxide: the sodium polyacrylate solution adding tap water 40kg, titanium dioxide raw material 40kg and 0.16kg in material-compound tank successively, then mix and blend 4min, obtains homodisperse mineral slurry;
2. the grinding of titanium dioxide: homodisperse titanium dioxide slurry is squeezed in horizontal sand mill by pump and pipeline, in order to make particle diameter be less than 2 microns reach more than 97%, adopt and repeatedly carry out sanded, when particle diameter be less than 2 microns do not reach more than 97%, here adopt again to be sent in horizontal sand mill by 80kg slurry and carry out grinding slurry, until particle diameter be less than 2 microns reach more than 97%, then this powder is collected stand-by;
4) compound of powder: by step 1), step 2), step 3) collect the powder that obtains and mix, add up to 100kg, then add 0.6kg Zinic stearas mix and blend 1.5min, make the powder of compound;
5) the slurry preparation of composite granule: the powder of compound is sent into vertical sand milling machine for cutting charge into pieces, then adds 100kg water, 0.3kg silane coupling agent, obtain mineral and titanium dioxide composite granule slurry;
6) homogenization process of composite granule: by step 4) in the mineral that obtain and titanium dioxide composite granule slurry send in homogenizing tank, then stir 2min, leave standstill 6min;
7) dry and packaging: send in drying machine carry out drying by the slurries filtration after homogenizing, again, then carry out breaing up process, finally pack by the specification of 25kg/ bag.
Embodiment 3
Titanium dioxide cladded type composite powder material, described titanium dioxide cladded type composite powder material comprises titanium dioxide and mineral powder, mineral powder is the one in calcite, kaolin, calcined kaolin, barite, wollastonite, white carbon black, titanium dioxide is Rutile type Titanium Dioxide, and the preparation technology of titanium dioxide cladded type composite powder material comprises:
1) preparation of mineral substrate
1. the dispersion of mineral substrate: add tap water 120kg, mineral powder 80kg and the sodium polyacrylate solution for mineral powder quality 0.4kg used in material-compound tank successively, then mix and blend 5min, obtains homodisperse mineral slurry;
2. the grinding of mineral substrate: homodisperse mineral slurry is squeezed in horizontal sand mill by pump and pipeline, grinding slurry, after having ground, choose the slurry of 50kg and be sent in homogenizing tank, remaining 150kg slurry carries out drying, in order to make particle diameter be less than 2 microns reach more than 87%, adopt and repeatedly carry out sanded, when particle diameter be less than 2 microns do not reach more than 87%, here adopt again to be sent in horizontal sand mill by 150kg slurry and carry out grinding slurry, until particle diameter be less than 2 microns reach more than 87%, then these powders are collected stand-by,
2) preparation of mineral extenders: the 50kg slurry in step 2. middle feeding homogenizing tank is ground again, slurry is sent in high flow capacity horizontal sand mill, repeatedly carry out sanded back and forth, then dry, in order to make particle diameter be less than 2 microns reach more than 97%, adopt and repeatedly carry out sanded, when particle diameter be less than 2 microns do not reach more than 97%, here adopt again to be sent in high flow capacity horizontal sand mill by 50kg slurry and carry out grinding slurry, until particle diameter be less than 2 microns reach more than 97%, then these powders are collected stand-by;
3) preparation of titanium dioxide
1. the dispersion of titanium dioxide: the sodium polyacrylate solution adding tap water 40kg, titanium dioxide raw material 40kg and 0.2kg in material-compound tank successively, then mix and blend 5min, obtains homodisperse mineral slurry;
2. the grinding of titanium dioxide: homodisperse titanium dioxide slurry is squeezed in horizontal sand mill by pump and pipeline, in order to make particle diameter be less than 2 microns reach more than 97%, adopt and repeatedly carry out sanded, when particle diameter be less than 2 microns do not reach more than 97%, here adopt again to be sent in horizontal sand mill by 80kg slurry and carry out grinding slurry, until particle diameter be less than 2 microns reach more than 97%, then this powder is collected stand-by;
4) compound of powder: by step 1), step 2), step 3) collect the powder that obtains and mix, add up to 120kg, then add 0.96kg Zinic stearas mix and blend 2min, make the powder of compound;
5) the slurry preparation of composite granule: the powder of compound is sent into vertical sand milling machine for cutting charge into pieces, then adds 120kg water, 0.48kg silane coupling agent, obtain mineral and titanium dioxide composite granule slurry;
6) homogenization process of composite granule: by step 4) in the mineral that obtain and titanium dioxide composite granule slurry send in homogenizing tank, then stir 3min, leave standstill 7min;
7) dry and packaging: send in drying machine carry out drying by the slurries filtration after homogenizing, again, then carry out breaing up process, finally pack by the specification of 25kg/ bag.
Above three embodiments of the present invention have been described in detail, but described content being only the preferred embodiment of the invention, the practical range for limiting the invention can not being considered to.All equalizations done according to the invention application range change and improve, and still all should belong to patent covering scope of the present invention.
Claims (4)
1. a titanium dioxide cladded type composite powder material, it is characterized in that, described titanium dioxide cladded type composite powder material comprises titanium dioxide and mineral powder, is wherein matrix with mineral powder, outside is coated with titanium dioxide, and the ratio of described mineral powder and described titanium dioxide is 1 ~ 2:1.
2. titanium dioxide cladded type composite powder material according to claim 1, is characterized in that, described mineral powder is the one in calcite, kaolin, calcined kaolin, barite, wollastonite, white carbon black.
3. titanium dioxide cladded type composite powder material according to claim 2, it is characterized in that, described titanium dioxide is Rutile type Titanium Dioxide.
4. titanium dioxide cladded type composite powder material according to claim 3, it is characterized in that, its preparation technology is:
1) preparation of mineral substrate:
1. the dispersion of mineral substrate: add tap water, mineral powder and the sodium polyacrylate solution for mineral powder quality 0.3% ~ 0.5% used in material-compound tank successively, then mix and blend 3 ~ 5min, obtain homodisperse mineral slurry, wherein the mass ratio of tap water and mineral powder is 1 ~ 2:1;
2. the grinding of mineral substrate: homodisperse mineral slurry is squeezed in horizontal sand mill by pump and pipeline, grinding slurry, after having ground, choose the slurry of 25% and be sent in homogenizing tank, 75% remaining slurry carries out filtering, dry, make particle diameter be less than 2 microns reach more than 87%, then these powders are collected stand-by
2) preparation of mineral extenders: the slurry in step 2. middle feeding homogenizing tank is ground again, slurry is sent in high flow capacity horizontal sand mill, repeatedly carry out sanded back and forth, then dry, make particle diameter be less than 2 microns reach more than 97%, then these powders are collected stand-by;
3) preparation of titanium dioxide:
1. the dispersion of titanium dioxide: add tap water, titanium dioxide raw material and the sodium polyacrylate solution for titanium dioxide raw materials quality 0.3% ~ 0.5% used in material-compound tank successively, then mix and blend 3 ~ 5min, obtain homodisperse mineral slurry, wherein the mass ratio of tap water and titanium dioxide raw material is 1 ~ 2:1;
2. the grinding of titanium dioxide: squeeze in horizontal sand mill by pump and pipeline by homodisperse titanium dioxide slurry, then carries out filtering, dry, until particle diameter be less than 2 microns reach more than 97%, then this powder is collected stand-by;
4) compound of powder: by step 1), step 2), step 3) collect the powder that obtains and mix, then Zinic stearas mix and blend 1 ~ 2min is added, make the powder of compound, the amount of the Zinic stearas wherein added is 0.5% ~ 0.8% of the powder quality of compound;
5) the slurry preparation of composite granule: the powder of compound is sent into vertical sand milling machine for cutting charge into pieces, then water, silane coupling agent is added, obtain mineral and titanium dioxide composite granule slurry, wherein the quality of the powder of water and compound is 1:1, and silane coupling agent is 0.2% ~ 0.4% of composite granule quality;
6) homogenization process of composite granule: by step 4) in the mineral that obtain and titanium dioxide composite granule slurry send in homogenizing tank, then stir 1 ~ 3min, leave standstill 5 ~ 7min;
7) dry and packaging: send in drying machine carry out drying by the slurries filtration after homogenizing, again, then carry out breaing up process, finally pack by the specification of 25kg/ bag.
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| CN201410748057.XA CN105524494A (en) | 2014-12-09 | 2014-12-09 | Titanium dioxide-coated composite powder material |
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| CN201410748057.XA CN105524494A (en) | 2014-12-09 | 2014-12-09 | Titanium dioxide-coated composite powder material |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106082668A (en) * | 2016-06-02 | 2016-11-09 | 中国地质大学（北京） | A kind of pottery compound opacifier and its preparation method and application |
| CN106590062A (en) * | 2016-12-06 | 2017-04-26 | 大连环球矿产股份有限公司 | Preparation method of composite titanium dioxide pigment with wollastonite coated with titanium dioxide |
| CN110054913A (en) * | 2019-04-26 | 2019-07-26 | 大连环球矿产股份有限公司 | It is a kind of using wollastonite as the preparation method of the polynary titanium dioxide pigment of major ingredient |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102993785A (en) * | 2012-11-13 | 2013-03-27 | 王丕轩 | Preparation method for TiO2/opal composite powder material |
| CN104119701A (en) * | 2013-04-27 | 2014-10-29 | 中国地质大学（北京） | Preparation method for inorganic composite white pigment capable of replacing titanium dioxide at high proportion |
-
2014
- 2014-12-09 CN CN201410748057.XA patent/CN105524494A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102993785A (en) * | 2012-11-13 | 2013-03-27 | 王丕轩 | Preparation method for TiO2/opal composite powder material |
| CN104119701A (en) * | 2013-04-27 | 2014-10-29 | 中国地质大学（北京） | Preparation method for inorganic composite white pigment capable of replacing titanium dioxide at high proportion |
Non-Patent Citations (1)
| Title |
|---|
| 李冰茹: ""机械化学法制备白云石/TiO2复合材料的工艺及性能研究"", 《中国优秀硕士学位论文全文数据库（工程科技I辑）》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106082668A (en) * | 2016-06-02 | 2016-11-09 | 中国地质大学（北京） | A kind of pottery compound opacifier and its preparation method and application |
| CN106082668B (en) * | 2016-06-02 | 2019-04-16 | 中国地质大学（北京） | A kind of ceramic compound opacifier and its preparation method and application |
| CN106590062A (en) * | 2016-12-06 | 2017-04-26 | 大连环球矿产股份有限公司 | Preparation method of composite titanium dioxide pigment with wollastonite coated with titanium dioxide |
| CN110054913A (en) * | 2019-04-26 | 2019-07-26 | 大连环球矿产股份有限公司 | It is a kind of using wollastonite as the preparation method of the polynary titanium dioxide pigment of major ingredient |
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Application publication date: 20160427 |