CN109810549A - A kind of new cleaning procedure for preparing titanium tetrachloride pigment material - Google Patents
A kind of new cleaning procedure for preparing titanium tetrachloride pigment material Download PDFInfo
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- CN109810549A CN109810549A CN201711160810.3A CN201711160810A CN109810549A CN 109810549 A CN109810549 A CN 109810549A CN 201711160810 A CN201711160810 A CN 201711160810A CN 109810549 A CN109810549 A CN 109810549A
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- titanium tetrachloride
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- cleaning procedure
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Abstract
A kind of new cleaning procedure for preparing titanium tetrachloride pigment material, belongs to chemical field, including dry grinding-screening-coating-gas powder and etc., it mainly joined silicon components and boron component in wet-milling.Compared with prior art, silicon components and boron component are added in the present invention during the grinding process, titanium tetrachloride not only can be ground to certain fineness and concentration, keep titanium tetrachloride pigment in precursor size, it prevents between titanium tetrachloride particle because coating is reunited, light is also improved simultaneously in the permeability on titanium tetrachloride surface, improves the glossiness in use process.
Description
Technical field
The invention belongs to chemical fields, and in particular to a kind of new cleaning procedure for preparing titanium tetrachloride pigment material.
Background technique
Theme of the environmental protection as Furniture manufacturing and sale is impacting Furniture manufacturing and former, auxiliary material links.
For coatings for furniture, the change converted from traditional woodcare paint to environmental protection coating material also just experiencing.Aqueous woodware paint
The requirement of environmental regulation has been complied in development, is greatly reduced the burst size of organic compound in woodcare paint, is being become after inside and outside
Another market focus after wall Architectural Emulsion Paints.Currently, China's aqueous woodware paint product mainly has 3 classes: first is that with propylene
Acid woodcare paint as main component, is mainly characterized by that adhesive force is good, will not deepen the color of woodenware, but wear-resisting and chemical resistance compared with
Difference, because cost is relatively low and technology content is not high for it.Second is that using the synthetic of acrylic acid and polyurethane as main component, feature is removed
Outside the characteristics of adhering to acrylic paint, and increase wear-resisting and strong chemical resistance feature, these two types are chiefly used in door and window, furniture produces
Product.Third is that absolutely polyurethane oil-based paint, wear-resisting property reach several times of oil paint, it is the advanced production in oil paint
Product.China's aqueous woodware paint is started late, and overall technology level falls behind relatively, therefore aqueous woodware paint is in the use of industrial use
On be concentrated mainly on that water soluble acrylic acid is technical, it is other such as the applications of aqueous double-component polyurethane and waterborne UV wood paint at home
It is also fewer.
But the function of shielding ultraviolet radiation of existing aqueous woodware paint is poor, even compared with the acrylic paint of UV resistant,
The phototropic of substrate can not be completely inhibited.Under sunlight irradiation, the colour fading of dyed substrate is particularly evident.Utilize titanium tetrachloride material
Expect modified water-soluble woodcare paint, can assign woodcare paint good light fastness, effectively improve substrate phototropic phenomenon.And utilize two
Being modified it is crucial that how to carry out surface to it for titania meterial, matches it with the system of application, and protect in the final product
Hold nm regime.This requires aqueous woodware paint titanium dioxides not only to have good covering power, also to have excellent glossiness
Extend coating service life with performances, the oxidations of prevention collective's resin such as anti-aging, color inhibitions.
At present technological means mainly to titanium tetrachloride surface carry out coating post-processing improve titanium dioxide in coating covering power,
Glossiness and anti-aging property.As CN200880014618.6, CN201110233081.6, CN201280012287.9,
CN201410404059.7 is coated with silicon oxide or phosphorus to improve titanium dioxide anti-aging property on titanium tetrachloride surface
Hydrochlorate forms one layer of fine and close vitreous film, but coat these substances hinders the permeability of light, corresponding titanium dioxide whiteness
There is apparent reduction with glossiness.On the other hand titanium tetrachloride particle can all be led to during coating this dense film
A degree of reunion has significantly affected the monodispersity of titanium dioxide although having separating twice in subsequent technique.
Summary of the invention
The present invention aiming at the shortcomings in the prior art, provides a kind of new cleaner for preparing titanium tetrachloride pigment material
Skill, the present invention increase wet-grinding technology and relative device before surface treatment, and silicon components and boron component are added during the grinding process, so not only
Titanium tetrachloride can be ground to certain fineness and concentration, keep titanium tetrachloride pigment in precursor size, prevent four
Because coating is reunited between titanium chloride particle, while light is also improved in the permeability on titanium tetrachloride surface, raising used
Glossiness in journey.
In order to solve the above-mentioned technical problem, the present invention is addressed by following technical proposals: a kind of new prepares tetrachloro
Change the cleaning procedure of titanium pigment material, comprising the following steps:
Step (A): dry grinding crushes the rutile-type titanium tetrachloride calcined to form rutile type titanium white crude product, powder
Particle fineness≤45 μm after broken, sieve residue≤0.05%；
Step (B): screening by the concentration dilution of rutile type titanium white slurry between 250g/L~400g/L, passes through
Sieve removes larger titanium tetrachloride coarse granule in slurry；
Step (C): inorganic salts are added coating tank, and adjust pH value by the way that acid or alkali is added and make inorganic salts shape by coating
Titanium dioxide particle surface is coated at evening chemical deposit；
Step (D): gas powder is broken up the reunion TiO2 particle in filter cake, simultaneously using superheated steam as crushing medium
Activating agent is added, TiO2 particle surface progress organic process is carried out to product.
To solve the above-mentioned problems, the high-caliber titanium tetrachloride pigment suitable for aqueous woodware paint is produced, the present invention mentions
A kind of scheme of titanium white flour flow design is supplied.One layer of dense oxide silicon is coated during titanium tetrachloride first product grinding distribution
With the laminated film of boron oxide.The present invention is composite coated with boron oxide by silica, improves light on titanium tetrachloride surface
Permeability reduces influence of the coating layer to titanium oxide nature, not only increases the anti-aging property of titanium dioxide, mention simultaneously
The high whiteness and glossiness of titanium dioxide.On the other hand SiClx of the invention and the composite coated process of boron oxide are in the stage of sand milling
It completes, prevents between titanium tetrachloride particle because coating is reunited.So that titanium tetrachloride is when carrying out surface treatment coating
It can be carried out under good dispersity, allow coating agent packet on each precursor, guaranteed when solidifying by superheated steam solution
There is a coating layer on each particle.Solve the permeability of the light of titanium tetrachloride, corresponding titanium dioxide whiteness and glossiness
There is apparent rising.
Compared with prior art, the present invention increases wet-grinding technology and relative device before surface treatment, and silicon is added during the grinding process
Titanium tetrachloride not only can be ground to certain fineness and concentration by component and boron component, keep titanium tetrachloride pigment in original
Grade particle size, prevents because coating is reunited between titanium tetrachloride particle, while also improving light in titanium tetrachloride table
The permeability in face improves the glossiness in use process.
Specific embodiment
Present invention is further described in detail With reference to embodiment.
Embodiment:
A kind of new cleaning procedure for preparing titanium tetrachloride pigment material, includes the following steps.Step (A): dry grinding will calcine
Good rutile-type titanium tetrachloride crushes to form rutile type titanium white crude product.Crush by Raymond machine grinding roller and bull ring into
Row, it is small to the pollution of product in this way, and product fineness is good, oil absorption is low.The charging rate of Raymond machine is adjusted simultaneously, grader turns
The parameters such as speed, intake allow smashed particle fineness to be 45 μm, sieve residue≤0.05%.Step (B): screening, by rutile
The concentration dilution of type Titanium dioxide slurry removes larger titanium dioxide coarse granule in slurry to 250g/L, by sieve.Step (C):
Coating tank is added in inorganic salts by coating, and inorganic salts are mainly zirconates and aluminium salt.And it adjusts pH value by the way that acid or alkali is added and makes
Evening chemical deposit is coated on titanium dioxide particle surface in the form of an oxide for zirconium, aluminium element.General step is by titanium tetrachloride
Slurry is heated to 80 DEG C, and pH is adjusted to 5 or so with sulfuric acid, then sulfuric acid zirconium solution and dilute NaOH are added simultaneously under stiring,
Maintain slurries pH 5 or so, after zirconium sulfate is added, then stirring curing 20 minutes passes through addition NaOH lye for slurry
PH value is adjusted to 8.5, and then sodium aluminate solution and dilute sulfuric acid lye is added in cocurrent again, remains that PH is 8.5, sodium metaaluminate
After addition, pH value is adjusted to 6.5 using dilute sulfuric acid, static curing 30 minutes.Make TiO2At during entire coating
In dispersity.Step (D): gas powder will be filtered using the superheated steam of high pressure-temperature as crushing medium in airslide disintegrating mill
Reunion TiO in cake2Particle is broken up, while activating agent is added and carries out TiO to product2Particle surface carries out organic process, herein mistake
Thinner TiO is collected by pneumatic conveying bag hose in journey2Dust and last resort back-blowing air-flow remove to be deposited on bag hose
Titanium dioxide.Activating agent is mainly alcamine compound.
Claims (1)
1. a kind of new cleaning procedure for preparing titanium tetrachloride pigment material, it is characterized in that the following steps are included:
Step (A): dry grinding crushes the rutile-type titanium tetrachloride calcined to form rutile type titanium white crude product, after crushing
Particle fineness≤45 μm, sieve residue≤0.05%；
Step (B): screening by the concentration dilution of rutile type titanium white slurry between 250g/L~400g/L, passes through sieve
Remove larger titanium tetrachloride coarse granule in slurry；
Step (C): inorganic salts are added coating tank, and adjust pH value by the way that acid or alkali is added and inorganic salts are formed by coating
Even chemical sediment is coated on titanium dioxide particle surface；
Step (D): the reunion TiO2 particle in filter cake is broken up, is added simultaneously using superheated steam as crushing medium by gas powder
Activating agent carries out TiO2 particle surface to product and carries out organic process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711160810.3A CN109810549A (en) | 2017-11-20 | 2017-11-20 | A kind of new cleaning procedure for preparing titanium tetrachloride pigment material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711160810.3A CN109810549A (en) | 2017-11-20 | 2017-11-20 | A kind of new cleaning procedure for preparing titanium tetrachloride pigment material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109810549A true CN109810549A (en) | 2019-05-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711160810.3A Pending CN109810549A (en) | 2017-11-20 | 2017-11-20 | A kind of new cleaning procedure for preparing titanium tetrachloride pigment material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109810549A (en) |
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2017
- 2017-11-20 CN CN201711160810.3A patent/CN109810549A/en active Pending
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190528 |