CN1887973A - Assembling modification and integration process for preparing functional white dye - Google Patents
Assembling modification and integration process for preparing functional white dye Download PDFInfo
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- CN1887973A CN1887973A CNA2006100891321A CN200610089132A CN1887973A CN 1887973 A CN1887973 A CN 1887973A CN A2006100891321 A CNA2006100891321 A CN A2006100891321A CN 200610089132 A CN200610089132 A CN 200610089132A CN 1887973 A CN1887973 A CN 1887973A
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Abstract
The assembling modification and integration process for preparing functional white pigment belongs to the field of inorganic material technology. The functional white pigment is prepared through mixing white lithopone in 15-25 wt% with heavy calcium carbonate, wollastonite, kaolin or barium sulfate in 75-85 wt%; adding dispersant and deionized water in 0.2-0.8 wt% through stirring to form the core material; adding titanium white powder as filming material and assembling modification in an improved peeling machine to obtain slurry; and direct drying to obtain the white pigment. The present invention has simple preparation process, low cost and use performance similar to that of titanium white powder, and may be used to replace titanium white powder in plastic, papermaking, paint and other field to improve product performance and lower product cost.
Description
Technical field
The invention belongs to field of inorganic materials, particularly the material of making of a kind of assembling modification and integration that can be used as white pigment.
Background technology
Titanium dioxide is the white pigment of chemical field performance the best owing to have good opacifying power, tinting strength and opacity and fast light, heat-resisting and acid and alkali-resistance.It is widely used in industries such as coating, papermaking, printing, printing ink, chemical fibre, rubber, makeup.At present, the market share of titanium dioxide white pigment reaches more than 90%.Along with improving constantly and the fast development of industry such as building, chemical industry, material of rapid economy development and people's living standard, the demand of white pigment will sharply rise.The problem that present white pigment titanium dioxide exists aspect production is: (1) raw material titanium resource is shortage in the world; (2) raw material availability of China's titanium white powder preparation is low, and it costs an arm and a leg; (3) traditional " sulfuric acid process " complex manufacturing, environmental pollution is serious.Above-mentioned reason causes titanium white production cost height and its output can not satisfy the demand in market.Titanium dioxide is as a kind of white pigment of superior performance, is actually by its particulate surface property to play a role, and particulate kernel and inoperative.Therefore, as the pigment-level titanium dioxide, the TiO that accounts for total amount 30%～60% that it exists with interior kernel form
2, be a kind of waste of resource.For head it off, carried out a large amount of research both at home and abroad, as methods such as compound titanium white, combined titanium white and chemical combination type titanium whites.For example the papermaking titanium white that has of the U.S. is compounded in kaolin or calcium carbonate granule surface exactly; Russia has reported the method for making of white calcium carbonate chemical combination type titanium white; The patent " preparation of nano TiO 2/ore powder composite titanium dioxide " that China announced in 1999 is to join TiOSO after kaolin and the pulverizing of other ores
4, Ti (SO
4)
2Or TiCl
4Finally make the nano level composite titanium dioxide in the solution, still, composite algorithm is had relatively high expectations to reacting liquid pH value, need to add sodium hydroxide and regulates pH, and the cycle is long, and needs are centrifugal, washing, oven dry, roasting process, and the technology of this method is still very numerous and diverse, and cost is also unsatisfactory.Existing described in " titanium white production and utilisation technology " (Chemical Industry Press) of Chen Chaohua etc.Patent (publication number CN1724595) has proposed a kind of white mineral powder-TiO
2The preparation method of composite white pigment use the white pigment of this method preparation to can be used for coating, plastics, papermaking, but this method preparation technology is complicated, long flow path, and the titanium dioxide large usage quantity, cost is higher.Therefore, it is simple to develop a kind of preparation technology, and the type material that can be used as the titanium dioxide substitute functional, with low cost is very necessary.
Summary of the invention
The objective of the invention is to develop a kind of performance and the pigment-level titanium dioxide is approaching, alternative titanium dioxide and cheap novel white pigment.Promptly add titanium dioxide and a kind of assembling modification agent a kind of type material of preparation in ultra-fine mill stripping modified-reaction device of certain particle size with the various white powder.
It is with fine white powder (as zinc sulfide white with, water-ground limestone or wollastonite or kaolin or barium sulfate make up by a certain percentage) be interior nuclear raw material, not make aftertreatment titanium dioxide (rutile-type or anatase crystal type) is mould material, add certain amount of dispersant by the wet ultra-fine grinding system and prepare qualified granularity, in modified-reaction device (modified version delaminate machine), utilize particle room machine power chemical effect then, particle size differences, grain size distribution makes chemical bonding takes place between particle between particle, finally impel inner core particles coated with uniform titanium dioxide granule, thereby realize intergranular assembling modification.The assembling modification product is finally prepared novel white pigment product by drying process, and this novel white pigment has the physical properties similar with titanium dioxide, can be widely used in the Application Areas of utilizing the titanium dioxide physical properties.
A kind of method of utilizing assembling modification and integration to prepare the functional type white pigment, its step comprises: (1) kernel feedstock production technique unit.With weight percent is white powder zinc sulfide white and the weight percent 75%-85% of 15%-25%, the water-ground limestone of granularity-43 micron or wollastonite or kaolin or barium sulfate mix, the soluble poly acrylate that adds the 0.2%-0.8% of white powder zinc sulfide white and water-ground limestone or wollastonite or kaolin or barium sulfate weight more fully mixes as dispersion agent and deionized water, mixed slurry solids concentration expressed in percentage by weight 55%-75%, in common wet method super-fine disintegrating machine, ground 2-4 hour then, make grinding back product granularity be less than 2 microns content 55%-70%; (2) mould material dispersal unit: with without the rutile-type of aftertreatment or anatase thpe white powder as mould material, mould material accounts for the 15%-35% of the finished product total amount, mould material and the soluble poly acrylate dispersion agent that accounts for mould material weight 0.1%-0.5% are mixed with deionized water, control mixes back slurry solids concentration expressed in percentage by weight 50%-70%, in homogenizer dispersed with stirring 30-60 minute is the score mould material slurry completely that looses then; (3) assembling modification technique unit.With the slurry of the slurry of above-mentioned (1) and (2) by solid weight per-cent (65-85): (15-35) mix and add and account for the agent of the finished product total amount 0.2%-0.6% polycarboxylic acid salt assembling modification and join modified version and delaminate and carry out assembling modification in the machine, the modified version machine of delaminating is coventional type to be delaminated the machine inner lining material changes corundum into, the agitator disk material is used polyurethane instead.Modification time is as the criterion less than 2 microns content 90%-93% with control modified product granularity, finally is prepared into qualified novel material slurry.(4) product drying technique unit.The novel material slurry is directly entered into Rotatingandflashstreamingdrier, and (the rotating blade quantity that is about to the coventional type Rotatingandflashstreamingdrier increases by 1.5 times, rotating speed increases by 1.2 times, charging adopts tangent line slag stock pump to send mode, 100 ℃-150 ℃ of drying temperatures) carry out drying in, control product water ratio promptly gets prepared novel white pigment less than 1%.
The present invention has the following advantages:
(1) utilize the novel white pigment technology of present method preparation simple, cost of goods manifactured is low, the physics use properties is identical with rutile-type (or anatase titanium dioxide) titanium dioxide, and good dispersity, can replace titanium dioxide to be used for fields such as plastics, papermaking, coating, play the effect that improves the application product performance and reduce the application product cost;
(2) this process of producing product does not have " three wastes " generation, and clean environment firendly is playing active effect aspect the protection environment;
(3) with white powder---zinc sulfide white, water-ground limestone, silicon ash right side, kaolin, barium sulfate are inner nuclear material, make novel white pigment after use value improve greatly, significant for the use value of lifting above-mentioned white powder itself.
(4) generation of coupling of the grain graininess between assembling modification major control inner nuclear material and the mould material and the unsalted surface of particle own, and granularity control is easy to industrial realization, so this process of producing product control is simple, convenient operating maintenance.
(5) novel material slurry product does not directly enter the drying machine drying by filter-press dehydration, has reduced the loss that the pressure-filtering process material penetrates filter cloth, the product recovery rate height.
Embodiment
Example 1
(1) with zinc sulfide white industrial goods 50kg and water-ground limestone 310kg (granularity-43 micron, whiteness 95%, purity 98%) fully mix with soluble poly acrylate dispersion agent (consumption 1kg) and deionized water (150kg), in common wet method super-fine disintegrating machine (BP80 type), ground 3 hours then, grind the back product granularity and be less than 2 microns content 70%, paste consistency 70.5%; (2) will mix with deionized water 38kg without Rutile type Titanium Dioxide 15kg, anatase thpe white powder 75kg, the soluble poly acrylate dispersion agent (consumption 0.18kg) of aftertreatment, dispersed with stirring 60 minutes was the diffusing mould material slurry completely of score in homogenizer then; (3) slurry of the slurry of above-mentioned (1) and (2) is mixed into modified-reaction device (the modified version machine of delaminating, be about to the coventional type machine inner lining material of delaminating and change corundum, agitator disk material polyurethane into) in and add assembling modification agent polycarboxylic acid salt (consumption 1kg) and carry out assembling modification, modification time 4 hours, the modified product granularity finally is prepared into qualified novel material slurry less than 2 microns content 93%.(4) (the rotating blade quantity that is about to the coventional type Rotatingandflashstreamingdrier increases by 1.5 times the novel material slurry directly to be entered improved Rotatingandflashstreamingdrier, rotating speed increases by 1.2 times, tangent line slag stock pump pumping mode is adopted in charging, 125 ℃ of drying temperatures) carry out drying in, product water ratio 0.8%, promptly get prepared novel white pigment-anatase titanium dioxide product, alternative anatase thpe white powder is used for fields such as papermaking, coating.
Example 2
(1) with zinc sulfide white industrial goods 80kg and kaolin 280kg (granularity-43 micron, whiteness 94%, purity 97%) fully mix with dispersion agent soluble poly acrylate (consumption 0.8kg) and deionized water (190kg), in common wet method super-fine disintegrating machine (BP80 type), ground 2.5 hours then, grind the back product granularity and be less than 2 microns content 68%, paste consistency 65%; (2) will mix with deionized water 38kg without Rutile type Titanium Dioxide 90kg, the dispersion agent soluble poly acrylate (consumption 0.10kg) of aftertreatment, dispersed with stirring 60 minutes was the diffusing mould material slurry completely of score in homogenizer then; (3) slurry of the slurry of above-mentioned (1) and (2) is mixed into modified-reaction device (the modified version machine of delaminating, be about to the coventional type machine inner lining material of delaminating and change corundum, agitator disk material polyurethane into) in and add assembling modification agent polycarboxylic acid salt (consumption 0.8kg) and carry out assembling modification, modification time 3.5 hours, the modified product granularity finally is prepared into qualified novel material slurry less than 2 microns content 95%.(4) (the rotating blade quantity that is about to the coventional type Rotatingandflashstreamingdrier increases by 1.5 times the novel material slurry directly to be entered improved Rotatingandflashstreamingdrier, rotating speed increases by 1.2 times, tangent line slag stock pump pumping mode is adopted in charging, 110 ℃ of drying temperatures) carry out drying in, product water ratio 1.0% promptly gets prepared novel white pigment-rutile-type product.Alternative Rutile type Titanium Dioxide is used for fields such as plastics, papermaking, coating.
Example 3
(1) with zinc sulfide white industrial goods 50kg and wollastonite 310kg (granularity-43 micron, whiteness 96%, purity 95%) fully mix with dispersion agent soluble poly acrylate (consumption 1.2kg) and deionized water (150kg), in common wet method super-fine disintegrating machine (BP80 type), ground 3.5 hours then, grind the back product granularity and be less than 2 microns content 72%, paste consistency 70%; (2) will mix with deionized water 38kg without anatase thpe white powder 90kg, the dispersion agent soluble poly acrylate (consumption 0.10kg) of aftertreatment, dispersed with stirring 60 minutes was the diffusing mould material slurry completely of score in homogenizer then; (3) slurry of the slurry of above-mentioned (1) and (2) is mixed into modified-reaction device (the modified version machine of delaminating, be about to the coventional type machine inner lining material of delaminating and change corundum, agitator disk material polyurethane into) in and add assembling modification agent polycarboxylic acid salt (consumption 1.0kg) and carry out assembling modification, modification time 4.0 hours, the modified product granularity finally is prepared into qualified novel material slurry less than 2 microns content 95%.(4) (the rotating blade quantity that is about to the coventional type Rotatingandflashstreamingdrier increases by 1.5 times the novel material slurry directly to be entered improved Rotatingandflashstreamingdrier, rotating speed increases by 1.2 times, tangent line slag stock pump pumping mode is adopted in charging, 110 ℃ of drying temperatures) carry out drying in, product water ratio 1.0% promptly gets prepared novel white pigment-anatase titanium dioxide product.Alternative anatase thpe white powder is used for fields such as plastics.
Claims (2)
1. method of utilizing assembling modification and integration to prepare the functional type white pigment, its step comprises: (1) kernel feedstock production technique unit: be white powder zinc sulfide white and the weight percent 75%-85% of 15%-25% with weight percent, the water-ground limestone of granularity-43 micron or wollastonite or kaolin or barium sulfate mix, the polyacrylate and the deionized water that add the 0.2%-0.8% of white powder zinc sulfide white and water-ground limestone or wollastonite or kaolin or barium sulfate weight again fully mix, mixed slurry solids concentration expressed in percentage by weight 55%-75%, in common wet method super-fine disintegrating machine, ground 2-4 hour then, make grinding back product granularity be less than 2 microns content 55%-70%; (2) mould material dispersal unit: with without the rutile-type of aftertreatment or anatase thpe white powder as mould material, mould material accounts for the 15%-35% of the finished product total amount, mould material and the polyacrylate that accounts for mould material weight 0.1%-0.5% are mixed with deionized water, control mixes back slurry solids concentration expressed in percentage by weight 50%-70%, in homogenizer dispersed with stirring 30-60 minute is the score mould material slurry completely that looses then; (3) assembling modification technique unit: with the slurry of the slurry of above-mentioned (1) and (2) by solid weight per-cent (65-85): (15-35) mix and add and account for the agent of the finished product total amount 0.2%-0.6% polycarboxylic acid salt assembling modification and join modified version and delaminate and carry out assembling modification in the machine, modification time is as the criterion less than 2 microns content 90%-93% with control modified product granularity, finally is prepared into qualified novel material slurry; (4) product drying technique unit: the novel material slurry directly entered carry out drying in the improved Rotatingandflashstreamingdrier, control product water ratio promptly gets prepared novel white pigment less than 1%.
2. a kind of according to claim 1 method of utilizing assembling modification and integration to prepare the functional type white pigment is characterized in that described dispersion agent is the soluble poly acrylate; Described assembling modification agent is the polycarboxylic acid salt; The described modified version machine of delaminating is coventional type to be delaminated the machine inner lining material changes corundum into, the agitator disk material is used polyurethane instead; Described Rotatingandflashstreamingdrier is that the rotating blade quantity of coventional type Rotatingandflashstreamingdrier is increased by 1.5 times, and rotating speed increases by 1.2 times, and charging adopts tangent line slag stock pump to send mode, 100 ℃-150 ℃ of drying temperatures.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100891321A CN1887973A (en) | 2006-08-04 | 2006-08-04 | Assembling modification and integration process for preparing functional white dye |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101392106B (en) * | 2007-09-21 | 2011-01-05 | 中国矿业大学(北京) | Method for coating alumina silicate nano particle on surface of grammite |
| CN101245198B (en) * | 2008-03-13 | 2011-03-23 | 常州市美伦钛业有限公司 | Coated titanium dioxide manufacture method |
| CN103333568A (en) * | 2013-07-09 | 2013-10-02 | 舒城碧满塘建材有限公司 | Preparation method of filling material integrated deep-processed emulsion paint |
| CN103980739A (en) * | 2014-04-15 | 2014-08-13 | 芜湖同达新材料科技有限公司 | Multiple modified ultrafine non-metal powder partially replacing titanium dioxide powder, and preparation method thereof |
| CN105153753A (en) * | 2015-08-07 | 2015-12-16 | 李涛 | Precipitated barium sulfate and preparation method thereof |
| CN106009778A (en) * | 2016-06-11 | 2016-10-12 | 江西广源化工有限责任公司 | Preparation method for special highlight anti-impact ultrafine powder used for shells of household electrical appliances |
| CN106243500A (en) * | 2016-08-22 | 2016-12-21 | 江西广源化工有限责任公司 | The preparation method of a kind of polypropylene modification composite and product thereof |
| 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 |
| CN111875990A (en) * | 2020-08-07 | 2020-11-03 | 江西广源化工有限责任公司 | Composite titanium dioxide and preparation method and application thereof |
-
2006
- 2006-08-04 CN CNA2006100891321A patent/CN1887973A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101392106B (en) * | 2007-09-21 | 2011-01-05 | 中国矿业大学(北京) | Method for coating alumina silicate nano particle on surface of grammite |
| CN101245198B (en) * | 2008-03-13 | 2011-03-23 | 常州市美伦钛业有限公司 | Coated titanium dioxide manufacture method |
| CN103333568A (en) * | 2013-07-09 | 2013-10-02 | 舒城碧满塘建材有限公司 | Preparation method of filling material integrated deep-processed emulsion paint |
| CN103980739A (en) * | 2014-04-15 | 2014-08-13 | 芜湖同达新材料科技有限公司 | Multiple modified ultrafine non-metal powder partially replacing titanium dioxide powder, and preparation method thereof |
| CN103980739B (en) * | 2014-04-15 | 2015-11-18 | 芜湖同达新材料科技有限公司 | A kind of part replaces multiple modified ultra-fine non-metallic powder of titanium dioxide and preparation method thereof |
| CN105153753A (en) * | 2015-08-07 | 2015-12-16 | 李涛 | Precipitated barium sulfate and preparation method thereof |
| CN106009778A (en) * | 2016-06-11 | 2016-10-12 | 江西广源化工有限责任公司 | Preparation method for special highlight anti-impact ultrafine powder used for shells of household electrical appliances |
| CN106009778B (en) * | 2016-06-11 | 2019-05-31 | 江西广源化工有限责任公司 | A kind of dedicated bloom anti-impact wet method super-fine raw powder's production technology of appliance shell material |
| CN106243500A (en) * | 2016-08-22 | 2016-12-21 | 江西广源化工有限责任公司 | The preparation method of a kind of polypropylene modification composite and product thereof |
| CN106243500B (en) * | 2016-08-22 | 2019-06-18 | 江西广源化工有限责任公司 | A kind of preparation method and its product of polypropylene modification composite material |
| 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 |
| CN111875990A (en) * | 2020-08-07 | 2020-11-03 | 江西广源化工有限责任公司 | Composite titanium dioxide and preparation method and application thereof |
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