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Production method of high chromogenic power sulfuric acid enamel titanium dioxide for pigment

A production method, the technology of the sulfuric acid method, applied in chemical instruments and methods, titanium dioxide, titanium compounds, etc., can solve the problems of uneven color development, high steam consumption, reduced production efficiency and other problems, achieve excellent optical effects, easy management and control, Use stable effects

Active Publication Date: 2021-07-13
ALFA FULL GUANGXI TENG COUNTY TITANIUM DIOXIDE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Concentrating titanium liquid not only increases equipment investment, but also consumes a lot of energy, which undoubtedly increases the manufacturing cost and difficulty of production
[0006] The metatitanic acid hydrolyzed by adjusting the concentration of the hydrolyzed titanium solution has poor particle size and distribution stability.
It is mainly reflected in the fact that the average particle size has achieved the expected purpose, but the distribution range is beyond the control range, and the proportion of fine particles and coarse particles is relatively large; the calcined titanium dioxide pink phase fluctuations, bulk specific gravity fluctuations, hair color fluctuations, and gloss fluctuations
Product quality often fails to meet customer requirements
Moreover, the method of dynamically adjusting the hydrolysis concentration is used. Due to the low hydrolysis concentration, the steam consumption is relatively large and the energy consumption is large.
At present, the ceramic industry is a large user of titanium dioxide. During the use of conventional ceramic titanium dioxide in the production of ceramic pigments, problems such as color light, color tone differences, and uneven color development often occur, which eventually lead to color differences in pigment products and qualified products. low rate
In order to overcome the above problems, ceramic enterprises often adopt the method of increasing the amount of titanium dioxide, which not only cannot fundamentally solve the technical problems, but also increases the workload of color separation and mixing in the later stage of color production, reducing production. efficiency, increased production costs

Method used

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  • Production method of high chromogenic power sulfuric acid enamel titanium dioxide for pigment
  • Production method of high chromogenic power sulfuric acid enamel titanium dioxide for pigment
  • Production method of high chromogenic power sulfuric acid enamel titanium dioxide for pigment

Examples

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Effect test

Embodiment 1

[0040] A kind of production method of sulfuric acid method enamel titanium dioxide with high color developing power for pigment, comprises the following steps:

[0041] (1) Production of hydrolysis seed crystals: first mix titanium solution with a titanium concentration of 130g / L and an effective acid content of 250g / L, and a sodium hydroxide solution with a mass percentage of 10%, according to titanium solution: sodium hydroxide The solution is added to the static mixer at the flow ratio of 1:0.7 at the same time, and the titanium liquid and the sodium hydroxide solution are quickly mixed. The static mixer is used to quickly mix the titanium liquid and the liquid caustic soda, which avoids the occurrence of excessive local alkalinity. Ferrous hydroxide affects the purity of the seed crystals, which solves the problem that the lye cannot be added quickly. The conditions for the formation of the seed crystals are more consistent, and the quality of the seed crystals is better; ...

Embodiment 2

[0046] A kind of production method of sulfuric acid method enamel titanium dioxide with high color developing power for pigment, comprises the following steps:

[0047] (1) Production of hydrolysis seed crystals: first mix titanium solution with a titanium concentration of 135g / L and an effective acid content of 260g / L, and a sodium hydroxide solution with a mass percentage of 12%, according to titanium solution: sodium hydroxide The solution is added to the static mixer at the flow ratio of 1:0.7 at the same time, and the titanium liquid and the sodium hydroxide solution are quickly mixed. The static mixer is used to quickly mix the titanium liquid and the liquid caustic soda, which avoids the occurrence of excessive local alkalinity. Ferrous hydroxide affects the purity of the seed crystals, which solves the problem that the lye cannot be added quickly. The conditions for the formation of the seed crystals are more consistent, and the quality of the seed crystals is better; ...

Embodiment 3

[0052] A kind of production method of sulfuric acid method enamel titanium dioxide with high color developing power for pigment, comprises the following steps:

[0053](1) Production of hydrolysis seed crystals: first mix titanium solution with a titanium concentration of 138g / L and an effective acid content of 265g / L, and a sodium hydroxide solution with a mass percentage of 14%, according to titanium solution: sodium hydroxide The solution is added to the static mixer at the flow ratio of 1:0.7 at the same time, and the titanium liquid and the sodium hydroxide solution are quickly mixed. The static mixer is used to quickly mix the titanium liquid and the liquid caustic soda, which avoids the occurrence of excessive local alkalinity. Ferrous hydroxide affects the purity of the seed crystals, which solves the problem that the lye cannot be added quickly. The conditions for the formation of the seed crystals are more consistent, and the quality of the seed crystals is better; T...

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Abstract

The present invention relates to the field of titanium dioxide preparation, in particular to a production method of high-color-developing sulfuric acid enamel titanium dioxide for pigments, including (1) making hydrolysis seed crystals, (2) hydrolysis, (3) washing, and (4) calcining. Adopting the production method of high color-developing power sulfuric acid enamel titanium dioxide for the pigment, the produced titanium dioxide has particles with a very uniform particle size, small particle size and high specific surface area, and the color development of the prepared titanium dioxide after being caked It is also very ideal, with high color development rate, stable color development and good gloss. It is a high-quality pigment titanium dioxide. It has the advantages of less dosage, strong color development ability, uniform color development, consistent color tone, and stable use effect. Compared with traditional conventional products, it has the advantages of low production cost and stable quality, and is very popular among customers.

Description

technical field [0001] The invention relates to the field of titanium dioxide preparation, in particular to a production method of high color-developing power sulfuric acid enamel titanium dioxide for color materials. Background technique [0002] Titanium dioxide is considered to be a white pigment with the best performance in the world, and it is widely used in coatings, plastics, papermaking, printing ink, chemical fiber, rubber, cosmetics and other industries. Titanium dioxide (titanium dioxide) is chemically stable and generally does not react with most substances. There are three crystallizations of titanium dioxide in nature: brookite, anatase and rutile. The brook titanium type is an unstable crystal form and has no industrial application value. Both the anatase type (A type for short) and the rutile type (Rutile type for short) have stable crystal lattices and are important white pigments and porcelain glazes. Compared with other white pigments, it has superior wh...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G23/053C03C1/04
CPCC01G23/0534C01P2006/12C01P2006/80C03C1/04
Inventor 容小邕
Owner ALFA FULL GUANGXI TENG COUNTY TITANIUM DIOXIDE
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