CN101823763A - Production method of special titanium white - Google Patents
Production method of special titanium white Download PDFInfo
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- CN101823763A CN101823763A CN200910116295A CN200910116295A CN101823763A CN 101823763 A CN101823763 A CN 101823763A CN 200910116295 A CN200910116295 A CN 200910116295A CN 200910116295 A CN200910116295 A CN 200910116295A CN 101823763 A CN101823763 A CN 101823763A
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- titanium dioxide
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Abstract
The invention provides a method of producing anatase special titanium white in a dry process, which takes ordinary anatase titanium white of 325 mesh as the raw material, appropriate surfactant is used in a surface modification machine to do surface coating treatment, and finally the special titanium white which can meet the needs of different occasions of paint, plastics, paper making, printing ink, chemical fiber and the like is obtained via the processing steps of depolymerization, homogenization, separation, ageing, sieving and the like.
Description
Technical field
The present invention relates to a kind of production method of titanium dioxide, specifically a kind of method of dry production anatase titanium dioxide special titanium pigment.
Background technology
Titanium dioxide is a kind of white inorganic pigment, have nontoxic, best opacity, best whiteness and luminance brightness, be considered to the present best a kind of white pigment of performance in the world, be widely used in industry such as coating, plastics, papermaking, printing-ink, chemical fibre, rubber, makeup.Simultaneously, because it does not directly use, need reprocess in the different application field, therefore, we are except the basic pigment performance of paying close attention to titanium dioxide such as whiteness, reducing power, size-grade distribution etc., the index of other application performances as the water dispersible of titanium dioxide, oil-dispersing property, fineness, water-absorbent, viscosity etc., also is the emphasis that Application Areas is paid close attention to.Therefore, for improving the application performance of titanium dioxide, titanium white production producer need carry out surface modification to titanium dioxide.The surface modification of current trend has two kinds of dry method and wet methods.Wet processing has characteristics such as surface-modifying agent is scattered, the surface coating is even, but need follow-up dehydration (filtering and drying) operation, being applicable to various can organic surface modifying agent, inorganic surfaces properties-correcting agent and leading portion water-soluble or hydrolysis be wet powder-making technology and back segment needs exsiccant occasion (as rutile titanium white powder aftertreatment technology), and shortcoming is that technical process is long, the reference mark is many, investment is big, energy consumption is high.And dry surface modification technology is simple, is applicable to various organic surface modifying agent, particularly non-water-soluble various surface-modifying agents.The homogeneity of the dispersion of surface-modifying agent and surface-coating depends on surface modification equipment to a great extent in the dry process.
CN1680491 discloses a kind of with general T iO
2Be processed into the method for chemical fibre of titanium dioxide by the dry method surface treatment for raw material.This invention is with TiO
2Be raw material, obtain superfine titanium white by processings such as superfine grinding, classifications earlier, with the pressurized air carrier band superfine titanium white and tensio-active agent are dispersed into gas-solid logistics and inhalator physical distribution respectively then, in the tangential then introduction tubular type cyclone, carry out the high-speed rotational motion, finish a plurality of processes such as high efficient mixed collision, adhesion and classification, thereby obtain two other titanium dioxide adherends of level, at last more respectively by gas-solid separation, ageing processing acquisition fine particle diameter＜1 μ m chemical fibre of titanium dioxide product and particle diameter 〉=1 μ m chemical fibre of titanium dioxide product to≤2 μ m.This invention does not consider that titanium dioxide viscosity is big, agglomerating force is strong, the characteristics of blocking pipe and equipment easily, the following titanium dioxide dry powder of 2 μ m can't obtain, be difficult to realize suitability for industrialized production, and owing to have collision, two processes of adhesion, titanium dioxide can produce new reunion again, add the employing air-separating technology, separation efficiency is low, can't guarantee the particle diameter of product at all.
Summary of the invention
The objective of the invention is to develop a kind of brand-new technology of dry process anatase titanium dioxide special titanium pigment, it has considered that titanium dioxide viscosity is big, agglomerating force is strong, the characteristic of blocking pipe and equipment easily, solved the agglomeration traits of titanium dioxide in the surface treatment process, guarantee the particle diameter of finished product, can satisfy need of industrial production fully.
The concrete technical scheme that realizes the object of the invention is:
(1) surface modification
Common anatase thpe white powder of 325 purposes and tensio-active agent are carried out the surface-coating processing through metering respectively in the surface modification machine, control certain coating temperature;
(2) depolymerization
Titanium dioxide after the surface-coating processing is broken up in depolymerizer;
(3) homogenizing
To break up back titanium dioxide homogenizing in the homogenizing storehouse, control certain homogenization temperature;
(4) gas solid separation
Titanium dioxide wind after the homogenizing processing is delivered to a cover cyclone dust collection system carry out gas solid separation;
(5) ageing
Separating obtained titanium dioxide is transported to high hopper, ageing 24 hours;
(6) screening and packing
Control sifted network planning lattice size is further separated a small amount of agglomerated particles that exists in the titanium dioxide after the ageing titanium dioxide packing of qualified particle diameter.
Wherein above-mentioned steps (1), (2), (3), (4) all are to operate under negative pressure condition.
The described tensio-active agent of step (1) is to select according to the different needs of occasions such as coating, plastics, papermaking, printing ink, chemical fibre.
The described homogenization temperature of step (3) is to determine according to the kind of the described tensio-active agent of step (1), and temperature control realizes by the thermal oil indirect heat exchange.
Step (6) adopts sieve apparatus to separate, and may be controlled to the granularity of product fully, and described sifted network planning lattice size is to determine according to user's needs, generally is 100 orders～325 orders.
Accompanying drawing is a process flow sheet of the present invention.
Below in conjunction with accompanying drawing the present invention is described in detail:
Common anatase thpe white powder of 325 purposes and tensio-active agent carry out surface-coating through the metering back respectively in surface modification machine 1 handles, and selects suitable coating temperature according to the kind of tensio-active agent.Material behind surface modification machine 1 inner investment is under the effect of exhaust fan 10, entering in the depolymerizer 2 agglomerated particles is broken up, break up the back titanium dioxide and sucked homogenizing in the homogenizing storehouse 3, in the homogenizing storehouse 3 heat-conducting oil heating system is set, control certain homogenization temperature by negative pressure.Material after the homogenizing enters the cyclone dust collection system under the pulling of exhaust fan 10, the whirlwind 4 and 5 titanium dioxides of separating that gather dust are concentrated and delivered to chapelet 6, and 5 gases of separating that wherein gather dust are extracted emptying out by exhaust fan 10.Surface modification machine 1, depolymerizer 2, homogenizing storehouse 3, whirlwind 4 and to gather dust 5 all be to work under the negative pressure system that exhaust fan 10 is created.Titanium dioxide after the separation is delivered to high hopper 7 by chapelet 6 again, and titanium dioxide ageing in high hopper 7 entered sieve apparatus 8 after 24 hours, and the qualified particle diameter titanium dioxide of separating is packed in wrapping machine 9, the coarse particles titanium dioxide individual curing of minute quantity.
Claims (4)
1. the production method of a special titanium pigment comprises following concrete steps:
(1) surface modification
Common anatase thpe white powder of 325 purposes and tensio-active agent are carried out the surface-coating processing through metering respectively in the surface modification machine, control certain coating temperature;
(2) depolymerization
Titanium dioxide after the surface-coating processing is broken up in depolymerizer;
(3) homogenizing
To break up back titanium dioxide homogenizing in the homogenizing storehouse, control certain homogenization temperature;
(4) gas solid separation
Titanium dioxide wind after the homogenizing processing is delivered to a cover cyclone dust collection system carry out gas solid separation;
(5) ageing
Separating obtained titanium dioxide is transported to high hopper, ageing 24 hours;
(6) screening and packing
Control sifted network planning lattice size is further separated a small amount of agglomerated particles that exists in the titanium dioxide after the ageing titanium dioxide packing of qualified particle diameter.
2. described method of claim 1, wherein the described tensio-active agent of step (1) is to select according to the different needs of occasions such as coating, plastics, papermaking, printing ink, chemical fibre.
3. described method of claim 2, wherein the described homogenization temperature of step (3) is to determine according to the kind of the described tensio-active agent of step (1).
4. described method of claim 1, wherein the described sifted network planning of step (6) lattice size is 100 orders～325 orders.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910116295A CN101823763A (en) | 2009-03-03 | 2009-03-03 | Production method of special titanium white |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910116295A CN101823763A (en) | 2009-03-03 | 2009-03-03 | Production method of special titanium white |
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| CN101823763A true CN101823763A (en) | 2010-09-08 |
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| CN200910116295A Pending CN101823763A (en) | 2009-03-03 | 2009-03-03 | Production method of special titanium white |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102443282A (en) * | 2010-10-14 | 2012-05-09 | 上海澎博钛白粉有限公司 | Preparation method of titanium dioxide for chemical fiber |
| CN105948110A (en) * | 2016-07-15 | 2016-09-21 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for improving sulfate process titanium dioxide cleanliness |
| CN108587247A (en) * | 2018-07-10 | 2018-09-28 | 四川龙蟒钛业股份有限公司 | A kind of production method of low VOC titanium dioxides |
| CN108690376A (en) * | 2018-07-10 | 2018-10-23 | 四川龙蟒钛业股份有限公司 | A kind of effective method for reducing titanium dioxide VOC content |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1271746A (en) * | 1999-04-28 | 2000-11-01 | 华东理工大学 | Surface treatment process for chemical fibre of titanium dioxide and its production method |
| CN1680491A (en) * | 2005-01-25 | 2005-10-12 | 上海华力索菲科技有限公司 | Chemical fibre titanium white production from normal TiO2 by drying surface treatment |
| CN1858309A (en) * | 2006-01-10 | 2006-11-08 | 上海千泰高科技发展有限公司 | Titanium white for dry acrylic spinning delustering its preparing method |
| US7264672B1 (en) * | 2006-10-31 | 2007-09-04 | National Titanium Dioxide Co. Ltd. (Cristal) | Titanium dioxide pigment composite and method of making same |
| CN101186332A (en) * | 2007-12-19 | 2008-05-28 | 龚家竹 | Modified method for producing titanium dioxide |
-
2009
- 2009-03-03 CN CN200910116295A patent/CN101823763A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1271746A (en) * | 1999-04-28 | 2000-11-01 | 华东理工大学 | Surface treatment process for chemical fibre of titanium dioxide and its production method |
| CN1680491A (en) * | 2005-01-25 | 2005-10-12 | 上海华力索菲科技有限公司 | Chemical fibre titanium white production from normal TiO2 by drying surface treatment |
| CN1858309A (en) * | 2006-01-10 | 2006-11-08 | 上海千泰高科技发展有限公司 | Titanium white for dry acrylic spinning delustering its preparing method |
| US7264672B1 (en) * | 2006-10-31 | 2007-09-04 | National Titanium Dioxide Co. Ltd. (Cristal) | Titanium dioxide pigment composite and method of making same |
| CN101186332A (en) * | 2007-12-19 | 2008-05-28 | 龚家竹 | Modified method for producing titanium dioxide |
Non-Patent Citations (1)
| Title |
|---|
| 伍良英: "提高包膜钛白颜料性能的试验研究", 《现代涂料与涂装》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102443282A (en) * | 2010-10-14 | 2012-05-09 | 上海澎博钛白粉有限公司 | Preparation method of titanium dioxide for chemical fiber |
| CN105948110A (en) * | 2016-07-15 | 2016-09-21 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for improving sulfate process titanium dioxide cleanliness |
| CN105948110B (en) * | 2016-07-15 | 2017-05-24 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for improving sulfate process titanium dioxide cleanliness |
| CN108587247A (en) * | 2018-07-10 | 2018-09-28 | 四川龙蟒钛业股份有限公司 | A kind of production method of low VOC titanium dioxides |
| CN108690376A (en) * | 2018-07-10 | 2018-10-23 | 四川龙蟒钛业股份有限公司 | A kind of effective method for reducing titanium dioxide VOC content |
| CN108690376B (en) * | 2018-07-10 | 2020-03-17 | 四川龙蟒钛业股份有限公司 | Method for effectively reducing VOC content of titanium dioxide |
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Application publication date: 20100908 |