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New cleaning process for preparing titanium tetrachloride pigment

A technology of titanium tetrachloride and pigments, which is applied in the field of cleaning technology, can solve the problems of impeding permeability, agglomeration of titanium tetrachloride particles, and reduction of whiteness and gloss of titanium dioxide, so as to improve permeability and gloss Degree, the effect of preventing agglomeration

Inactive Publication Date: 2019-05-28
王鹏
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such as CN200880014618.6, CN201110233081.6, CN201280012287.9, CN201410404059.7, in order to improve the anti-aging performance of titanium dioxide, the surface of titanium tetrachloride is coated with silicon dioxide or phosphate to form a dense glass-like film, However, the coating of these substances hinders the transmission of light, and the corresponding whiteness and gloss of titanium dioxide are significantly reduced.
On the other hand, the process of coating this dense film will lead to a certain degree of agglomeration of titanium tetrachloride particles. Although there is secondary crushing in the subsequent process, it still significantly affects the monodispersity of titanium dioxide.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0015] A new cleaning process for preparing titanium tetrachloride pigments comprises the following steps. Step (A): dry grinding, pulverizing the calcined rutile titanium tetrachloride to form crude rutile titanium dioxide. The crushing is carried out by the grinding roller and grinding ring of the Raymond machine, which has little pollution to the product, and the product has good fineness and low oil absorption. At the same time, adjust the feed speed of the Raymond machine, the speed of the classifier, the air intake and other parameters so that the fineness of the crushed particles is 45 μm, and the sieve residue is ≤0.05%. Step (B): sieving, diluting the concentration of the rutile titanium dioxide slurry to 250g / L, and removing larger coarse titanium dioxide particles in the slurry through a sieve. Step (C): Coating, adding inorganic salts into the coating tank, the inorganic salts are mainly zirconium salts and aluminum salts. And the pH value is adjusted by adding a...

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Abstract

The invention relates to a new cleaning process for preparing titanium tetrachloride pigment, and belongs to the field of chemical engineering. The new cleaning process comprises the steps of dry grinding, sieving, coating, gas powder, and the like, wherein a silicon component and a boron component are mainly added in wet grinding. Compared with the prior art, the new cleaning process has the advantages that the silicon component and the boron component are added in the grinding process, so that titanium tetrachloride can be ground to a certain fineness and concentration, and the titanium tetrachloride pigment can be kept in the original particle size; furthermore, agglomeration of titanium tetrachloride particles due to coating is prevented, the transparency of light on the surface of titanium tetrachloride is also improved, and the gloss during use is improved.

Description

technical field [0001] The invention belongs to the field of chemical industry, and in particular relates to a new cleaning process for preparing titanium tetrachloride pigment material. Background technique [0002] As the theme of furniture production and sales, environmental protection is impacting every link of furniture production and raw and auxiliary materials. For furniture coatings, it is also undergoing a transformation from traditional wood coatings to environmentally friendly coatings. The development of water-based wood paint complies with the requirements of environmental protection regulations, greatly reducing the release of organic compounds in wood paint, and is becoming another market hotspot after architectural latex paint for interior and exterior walls. At present, there are three main types of water-based wood paint products in my country: one is wood paint with acrylic acid as the main component. Low and not high-tech. The second is the composition ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C1/36C09C3/04C09C3/06C09C3/08
Inventor 王鹏
Owner 王鹏