CN105036696A - Production technique of mineral/TiO2 composite granular material - Google Patents
Production technique of mineral/TiO2 composite granular material Download PDFInfo
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- CN105036696A CN105036696A CN201510299527.3A CN201510299527A CN105036696A CN 105036696 A CN105036696 A CN 105036696A CN 201510299527 A CN201510299527 A CN 201510299527A CN 105036696 A CN105036696 A CN 105036696A
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Abstract
The invention discloses a production technique of a mineral/TiO2 composite granular material. The production technique comprises the following steps: preparing a mineral core base, preparing a coating TiO2 slurry, preparing TiO2-coated composite granules, preparing a mineral extending agent, mixing the TiO2-coated composite granules with the mineral extending agent, and carrying out liquid-phase homogenization, solid-liquid separation, drying and dispersion to obtain the mineral/TiO2 composite granular material. The production technique has the advantages of low production cost and excellent product performance, and is suitable for large-scale production.
Description
Technical field
The present invention relates to a kind of composite particulate material production technique, be specifically related to a kind of mineral/TiO
2composite particulate material production technique.
Background technology
Mineral/TiO
2composite particulate material is bag core with natural whiting mineral (CaCO3) particle, crystalline titania is the function powder material of the clad structure type composite particles composition that coating is formed, there is the pigment property similar to titanium dioxide, but cost is significantly lower than titanium dioxide of the same type.Mineral/TiO
2composite particulate material titanium dioxide can be replaced to be used for occasion that coating, plastics, papermaking, ink, rubber etc. utilize titanium dioxide physicals, plays the effect improving application product performance He reduce costs.In the prior art, mineral/TiO
2composite particulate material is subject to the restriction of production technique and production cost, cannot carry out large-scale industrialization production.
Summary of the invention
The object of the invention is to overcome above-mentioned the deficiencies in the prior art, a kind of mineral/TiO being applicable to large-scale industrialized production is provided
2composite particulate material production technique.
A kind of mineral/TiO
2composite particulate material production technique, comprises the steps:
(1), prepare mineral bag core matrix: add water, dispersion agent and grinding aid at calcium carbonate raw material, utilize Ball-stirring mill wet method to carry out extra-fine grinding to it, make mineral bag core matrix;
(2) coating TiO, is prepared
2slurry: at TiO
2add water, dispersion agent and adjusting agent in raw material, after dispersed with stirring, adjustment, grinding distribution are carried out to it, make coating TiO
2slurry;
(3), TiO is prepared
2cladded type composite particles: by mineral bag core matrix, coating TiO
2after slurry mixing, liquid-phase particle homogenizing, powerful coated combination are carried out to it, makes TiO
2cladded type composite particles;
(4), prepare mineral extenders: by calcium carbonate raw material, after utilizing wet method high-speed stirring to grind, make mineral extenders;
(5), by TiO
2after cladded type composite particles mixes with mineral extenders, through liquid phase homogenizing, solid-liquid separation, dry with after breaing up operation, namely obtain mineral/TiO
2composite particulate material.
Wherein:
In step (1), the processing condition preparing mineral bag core matrix are:
Grinding concentration: 70% (percent weight solids concentration);
Processing temperature: normal temperature starts, operation process is cooled material by equipment;
Grinding aid addition: 0.2 ~ 0.5% (with dry material gauge);
Technique unit situation: form circular grinding system by wet srirred mill, work continuously;
Slurry preparation: by calcium carbonate raw material (325-600 order) and water and dispersion agent mixture, and high-speed stirring is even.
In step (2), prepare coating TiO
2the processing condition of slurry are:
By TiO
2raw material (commercially available titanium dioxide) adds water and dispersion agent, stirs about 40min make slurry with moderate speed.Slurry solid content 60%, adds dispersion agent 0.3%;
By TiO
2slurry adopts wet srirred mill to carry out grinding fast carrying out high force dispersion, makes coating thing stand-by.
In step (3), preparation TiO
2the processing condition of cladded type composite particles are:
Paste consistency: 64.6% (percent weight solids concentration);
Processing temperature: operation process is cooled material by equipment;
Composite assistant addition: 0.3% (with dry material gauge);
Technique unit situation: some wet srirred mills are composed in series grinding system, work continuously;
Slurry preparation: by the levigate slurry raw material of calcium carbonate (-2 μm of content 72-78%, solid content 70%) and TiO
2slurry (solid content 60%) mixture, and stir.
In step (4), the processing condition preparing mineral extenders are:
Pulp density: 40% (percent weight solids concentration)
Processing temperature: operation process is cooled material by equipment
Grinding aid addition: 0.2% (with dry material gauge)
Technique unit situation: the high flow capacity shredder composition circular grinding system preparing submicron particles, continuously grinding operation.
The Mechanochemical Effect that the present invention produces in mechanical mill refinement by solid matter, causes the surface reaction between the fine solid particle material as sub-particle (coating thing) and the coarse particulate matter as female particle (bag core thing) and forms the former coated on the latter surface.Due in liquid phase mechanical force and chemical system, under solid particulate is in water medium condition, so intergranular dissemination is greatly enhanced; By regulating ambient condition, adjustable mineral and TiO
2intergranular reactive force; By regulating degree of grind and grinding medium condition can change granule surface activity and functional group's state, and then form mineral and TiO
2mortise between particle.Because liquid phase mechanochemical method can prepare the coated complete and composite particles that inter-particle force is strong, therefore can be formed stable and close to the pigment performance of titanium white.In addition, the method adapts to the requirement of the Alkaline minerals such as calcium carbonate as female particle-matrix especially.Therefore with prepare compared with titanium dioxide, have production cost low, product performance are excellent, are applicable to the advantage of scale operation.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is process flow sheet of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described in detail, can be easier to make advantages and features of the invention be readily appreciated by one skilled in the art, thus more explicit defining is made to protection scope of the present invention.
See Fig. 1, a kind of mineral/TiO provided by the invention
2composite particulate material production technique, comprises the steps:
(1), prepare mineral bag core matrix: add water, dispersion agent and grinding aid at calcium carbonate raw material, utilize Ball-stirring mill wet method to carry out extra-fine grinding to it, make mineral bag core matrix;
(2) coating TiO, is prepared
2slurry: at TiO
2add water, dispersion agent and adjusting agent in raw material, after dispersed with stirring, adjustment, grinding distribution are carried out to it, make coating TiO
2slurry;
(3), TiO is prepared
2cladded type composite particles: by mineral bag core matrix, coating TiO
2after slurry mixing, liquid-phase particle homogenizing, powerful coated combination are carried out to it, makes TiO
2cladded type composite particles;
(4), prepare mineral extenders: by calcium carbonate raw material, after utilizing wet method high-speed stirring to grind, make mineral extenders;
(5), by TiO
2after cladded type composite particles mixes with mineral extenders, through liquid phase homogenizing, solid-liquid separation, dry with after breaing up operation, namely obtain mineral/TiO
2composite particulate material.
In step (1), the processing condition preparing mineral bag core matrix are:
Grinding concentration: 70% (percent weight solids concentration);
Processing temperature: normal temperature starts, operation process is cooled material by equipment;
Grinding aid addition: 0.2 ~ 0.5% (with dry material gauge);
Technique unit situation: form circular grinding system by wet srirred mill, work continuously;
Slurry preparation: by calcium carbonate raw material (325-600 order) and water and dispersion agent mixture, and high-speed stirring is even.
In step (2), prepare coating TiO
2the processing condition of slurry are:
By TiO
2raw material (commercially available titanium dioxide) adds water and dispersion agent, stirs about 40min make slurry with moderate speed.Slurry solid content 60%, adds dispersion agent 0.3%;
By TiO
2slurry adopts wet srirred mill to carry out grinding fast carrying out high force dispersion, makes coating thing stand-by.
In step (3), preparation TiO
2the processing condition of cladded type composite particles are:
Paste consistency: 64.6% (percent weight solids concentration);
Processing temperature: operation process is cooled material by equipment;
Composite assistant addition: 0.3% (with dry material gauge);
Technique unit situation: some wet srirred mills are composed in series grinding system, work continuously;
Slurry preparation: by the levigate slurry raw material of calcium carbonate (-2 μm of content 72-78%, solid content 70%) and TiO
2slurry (solid content 60%) mixture, and stir.
In step (4), the processing condition preparing mineral extenders are:
Pulp density: 40% (percent weight solids concentration)
Processing temperature: operation process is cooled material by equipment
Grinding aid addition: 0.2% (with dry material gauge)
Technique unit situation: the high flow capacity shredder composition circular grinding system preparing submicron particles, continuously grinding operation.
The above is only the preferred embodiment of the present invention, protection scope of the present invention be not only confined to above-described embodiment, and all technical schemes belonged under thinking of the present invention all belong to protection scope of the present invention.It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (5)
1. mineral/TiO
2composite particulate material production technique, is characterized in that: comprise the steps:
(1), prepare mineral bag core matrix: add water, dispersion agent and grinding aid at calcium carbonate raw material, utilize Ball-stirring mill wet method to carry out extra-fine grinding to it, make mineral bag core matrix;
(2) coating TiO, is prepared
2slurry: at TiO
2add water, dispersion agent and adjusting agent in raw material, after dispersed with stirring, adjustment, grinding distribution are carried out to it, make coating TiO
2slurry;
(3), TiO is prepared
2cladded type composite particles: by mineral bag core matrix, coating TiO
2after slurry mixing, liquid-phase particle homogenizing, powerful coated combination are carried out to it, makes TiO
2cladded type composite particles;
(4), prepare mineral extenders: by calcium carbonate raw material, after utilizing wet method high-speed stirring to grind, make mineral extenders;
(5), by TiO
2after cladded type composite particles mixes with mineral extenders, through liquid phase homogenizing, solid-liquid separation, dry with after breaing up operation, namely obtain mineral/TiO
2composite particulate material.
2. mineral/TiO according to claim 1
2composite particulate material production technique, is characterized in that: in step (1), and the processing condition preparing mineral bag core matrix are: grinding concentration: 70% (percent weight solids concentration); Processing temperature: normal temperature starts, operation process is cooled material by equipment; Grinding aid addition: 0.2 ~ 0.5%; Technique unit situation: form circular grinding system by wet srirred mill, work continuously; Slurry preparation: by calcium carbonate raw material 325-600 order) and water and dispersion agent mixture, and high-speed stirring is even.
3. mineral/TiO according to claim 1
2composite particulate material production technique, is characterized in that: step prepares coating TiO in (2)
2the processing condition of slurry are: by TiO
2raw material adds water and dispersion agent, stirs about 40min make slurry with moderate speed; Slurry solid content 60%, adds dispersion agent 0.3%; Technique unit situation: by TiO
2slurry adopts wet srirred mill to carry out grinding fast carrying out high force dispersion, makes coating thing stand-by.
4. mineral/TiO according to claim 1
2composite particulate material production technique, is characterized in that: in step (3), preparation TiO
2the processing condition of cladded type composite particles are: paste consistency: 64.6%; Processing temperature: operation process is cooled material by equipment; Composite assistant addition: 0.3%; Technique unit situation: some wet srirred mills are composed in series grinding system, work continuously; Slurry preparation: by the levigate slurry raw material of calcium carbonate and TiO
2slurry mixture, and stir.
5. mineral/TiO according to claim 1
2composite particulate material production technique, is characterized in that: in step (4), the processing condition preparing mineral extenders are: pulp density: 40%; Processing temperature: operation process is cooled material by equipment; Grinding aid addition: 0.2%; Technique unit situation: the high flow capacity shredder composition circular grinding system preparing submicron particles, continuously grinding operation.
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN107573744A (en) * | 2017-09-14 | 2018-01-12 | 浙江加州国际纳米技术研究院台州分院 | The method for preparing trbasic zinc phosphate system Composite Anticorrosive Pigment Using using rod pin nanon ball-mill |
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CN1724595A (en) * | 2005-07-07 | 2006-01-25 | 北京天之岩健康科技有限公司 | White minera powder TiO2 composite white pigment and its preparation method |
CN101250336A (en) * | 2008-04-10 | 2008-08-27 | 上海安亿纳米材料有限公司 | Barium sulfate based polybasic composite white pigments and method for preparing same |
CN101775239A (en) * | 2009-01-09 | 2010-07-14 | 中国矿业大学(北京) | Preparation method of inorganic composite white pigment with high covering power |
CN104893364A (en) * | 2015-06-03 | 2015-09-09 | 安徽省铜陵县牛山矿业有限责任公司 | Production technique and production line of mineral/TiO2 composite granular material |
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Patent Citations (4)
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CN1724595A (en) * | 2005-07-07 | 2006-01-25 | 北京天之岩健康科技有限公司 | White minera powder TiO2 composite white pigment and its preparation method |
CN101250336A (en) * | 2008-04-10 | 2008-08-27 | 上海安亿纳米材料有限公司 | Barium sulfate based polybasic composite white pigments and method for preparing same |
CN101775239A (en) * | 2009-01-09 | 2010-07-14 | 中国矿业大学(北京) | Preparation method of inorganic composite white pigment with high covering power |
CN104893364A (en) * | 2015-06-03 | 2015-09-09 | 安徽省铜陵县牛山矿业有限责任公司 | Production technique and production line of mineral/TiO2 composite granular material |
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Cited By (2)
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CN107573744A (en) * | 2017-09-14 | 2018-01-12 | 浙江加州国际纳米技术研究院台州分院 | The method for preparing trbasic zinc phosphate system Composite Anticorrosive Pigment Using using rod pin nanon ball-mill |
CN107573744B (en) * | 2017-09-14 | 2019-08-16 | 浙江加州国际纳米技术研究院台州分院 | The method for preparing trbasic zinc phosphate system Composite Anticorrosive Pigment Using using stick pin type nanon ball-mill |
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