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Composite titanium dioxide and preparation method thereof

A rutile-type titanium dioxide and titanium dioxide technology, applied in the field of chemical biology, can solve the problem of high cost of titanium dioxide, achieve better particle size distribution, reduce thermoplasticity, and improve the hardness of the coating film.

Inactive Publication Date: 2015-07-01
SHANGHAI WEIYI IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But the cost of titanium dioxide is high

Method used

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  • Composite titanium dioxide and preparation method thereof
  • Composite titanium dioxide and preparation method thereof

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preparation example Construction

[0032] Such as figure 1 As shown, the present invention also discloses a preparation method of composite titanium dioxide, comprising the following steps:

[0033] Weigh barium sulfate and titanium dioxide raw materials by weight;

[0034] Stir and mix the weighed raw materials in a mixer;

[0035] The mixed mixture is dried and pulverized.

[0036] In practical application, if the whiteness of the composite titanium dioxide is not enough, we can add whitening agent when the weighed raw materials are stirred and mixed in the mixer, so that the whiteness of the composite titanium dioxide can be improved to a certain extent; The weight ratio range of barium sulfate is 45-20%, the weight ratio range of titanium dioxide is 55-80%, and the optimal proportion scheme is that the weight ratio of barium sulfate is 20%, and the weight ratio of titanium dioxide is 80%; in addition, The titanium dioxide is anatase or rutile titanium dioxide, the barium sulfate is modified precipitated ...

Embodiment 1

[0038] Embodiment one: a kind of composite type titanium dioxide preparation method, comprises the following steps:

[0039] Step S1: weighing barium sulfate and titanium dioxide raw materials according to weight ratio;

[0040] Use anatase or rutile titanium dioxide for titanium dioxide, and use modified precipitated ultrafine barium sulfate for barium sulfate. When selecting raw materials titanium dioxide and barium sulfate, try to choose a whiter hue to improve the whiteness of the composite titanium dioxide. , the ratio of raw materials is: the weight ratio of barium sulfate is 20%, the weight ratio of titanium dioxide is 80%, and the raw materials of barium sulfate and titanium dioxide are weighed according to the weight ratio.

[0041] Step S2: stirring and mixing the weighed raw materials in a mixer;

[0042] Users can choose cone mixer or horizontal mixer according to their own needs, and horizontal mixer is preferred. According to the workload of the mixer, the proce...

Embodiment 2

[0045] Embodiment two: a kind of composite type titanium dioxide preparation method, comprises the following steps:

[0046] Step S1: weighing barium sulfate and titanium dioxide raw materials according to weight ratio;

[0047] Use anatase or rutile titanium dioxide for titanium dioxide, and use modified precipitated ultrafine barium sulfate for barium sulfate. When selecting raw materials titanium dioxide and barium sulfate, try to choose a whiter hue to improve the whiteness of the composite titanium dioxide. The ratio of raw materials is: the weight ratio of barium sulfate is 30%, the weight ratio of titanium dioxide is 70%, and the raw materials of barium sulfate and titanium dioxide are weighed according to the weight ratio.

[0048] Step S2: stirring and mixing the weighed raw materials in a mixer;

[0049]Users can choose cone mixer or horizontal mixer according to their own needs, and horizontal mixer is preferred. According to the workload of the mixer, the processi...

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Abstract

The invention discloses composite titanium dioxide, the composite titanium dioxide is added with barium sulfate, and the barium sulfate weight ratio range is 45%-20%, the titanium dioxide weight ratio is in the range of 55-80%, and the invention also discloses a preparation method of the composite type titanium dioxide. The cost of thee composite type titanium dioxide is low.

Description

technical field [0001] The invention relates to the technical field of chemistry and biology, in particular to a composite titanium dioxide and a preparation method thereof. Background technique [0002] Titanium dioxide is considered to be a white pigment with the best performance in the world. The main component of titanium dioxide is TiO 2 , The chemical properties are stable, and it does not react with most substances under normal circumstances. There are three kinds of crystals of titanium dioxide in nature: brookite, anatase and rutile, brookite is an unstable crystal form with no industrial value, anatase is referred to as type A, and rutile is referred to as Type R, all of which have stable crystal lattices, are important white pigments and porcelain glazes. Compared with other white pigments, they have superior whiteness, tinting power, hiding power, weather resistance, heat resistance and chemical stability, especially Titanium dioxide is not toxic. [0003] The...

Claims

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Application Information

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IPC IPC(8): C09D7/12
CPCC09D7/62C09D7/61
Inventor 彭智辉彭志红谭志君杨华
Owner SHANGHAI WEIYI IND
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