Pretreatment method of zircon powder and preparation method of vanadium-zirconium blue material

The technology of vanadium zirconium blue material and zircon powder is applied in the field of pigment production, which can solve the problems of insufficient purity and activity of vanadium zirconium blue pigment, low reactivity of zircon powder and high impurity content, so as to make full use of raw materials, The effect of improving conversion rate and reducing reaction impurities

Active Publication Date: 2016-07-06
SANXIANG ADVANCED MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the pretreated zircon powder still has the disadvantages of low reactivity, high impurity content, and high cost; the vanadium-zirconium blue pigment prepared by the above method also has deficiencies in component purity and activity

Method used

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  • Pretreatment method of zircon powder and preparation method of vanadium-zirconium blue material

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preparation example Construction

[0015] The present invention also provides a method for preparing vanadium-zirconium blue material. The zircon powder, vanadium pentoxide and sodium chloride pretreated by the above-mentioned zircon powder pretreatment method are mixed to obtain a mixture, and then the The mixture is heated at a uniform speed to a temperature of 800-900° C., the heating time is 8-11 hours, the temperature of the mixture is maintained at 800-900° C. for 1-1.5 hours, and then cooled to obtain a vanadium-zirconium blue material.

[0016] As can be seen from the foregoing description, the beneficial effects of the present invention are:

[0017] (1) The pretreatment method of zircon powder of the present invention, the above-mentioned heating and pressure treatment can effectively open the bonding bond of zirconia and silicon dioxide in the zircon powder, realize sufficient debonding, and the debonding rate can reach 98% The above; pickling has the effect of removing impurities, and drying can fur...

Embodiment 1

[0029] The preparation method of a vanadium-zirconium blue material in this embodiment is to heat and pressurize the zircon powder, the temperature of the heat treatment is 350°C, the pressure of the pressure treatment is 0.4MPa, and then the And the zircon powder after the pressure treatment is pickled to neutrality with a mass concentration of 1% sulfuric acid or hydrochloric acid, and the Al 2 o 3 , Fe 2 o 3 、TiO 2 and P 2 o 5 The mass concentration of impurities is 0.1%. The pickled zircon powder is first dried and then ground to control the particle size of the zircon powder to 5 μm to obtain the pretreated zircon powder.

[0030] The zircon powder, vanadium pentoxide and sodium chloride after the pretreatment method of the above-mentioned zircon powder pretreatment (also can add other vanadium zirconium blue material preparation raw materials in the prior art) are evenly mixed to obtain a mixture , first grind the mixture, then heat the mixture at a uniform speed ...

Embodiment 2

[0032] The preparation method of a vanadium-zirconium blue material in this embodiment is to heat and pressurize the zircon powder, the temperature of the heat treatment is 400°C, the pressure of the pressure treatment is 0.6MPa, and then the And the zircon powder after the pressure treatment is pickled to neutrality with a mass concentration of 2% sulfuric acid or hydrochloric acid, and the Al 2 o 3 , Fe 2 o 3 、TiO 2 and P 2 o 5 The mass concentration of impurities is 0.01%. The pickled zircon powder is first dried and then ground to control the particle size of the zircon powder to 10 μm to obtain the pretreated zircon powder.

[0033] The zircon powder, vanadium pentoxide and sodium chloride after the pretreatment method of the above-mentioned zircon powder pretreatment (also can add other vanadium zirconium blue material preparation raw materials in the prior art) are evenly mixed to obtain a mixture , first grind the mixture, then heat the mixture at a uniform spee...

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Abstract

The invention relates to a pretreatment method of zircon powder. The pretreatment method comprises: performing heating and pressurizing treatments on zircon powder, wherein the temperature of the heating treatment is 350-400 DEG C, and the pressure of the pressurizing treatment is 0.4-0.6MPa; then performing acid cleaning on the zircon powder after the heating and pressurizing treatments until the zircon powder is neutral; and performing drying at first and then performing grinding on the zircon powder after acid cleaning to obtain zircon powder after pretreatment. The invention also relates to a preparation method of a vanadium-zirconium blue material. The pretreatment method of the zircon powder, provided by the invention, can significantly reduce reaction impurities and significantly improve the reactivity of the zircon powder; and the preparation method of the vanadium-zirconium blue material, provided by the invention, has the advantages of improving the productive rate and being simple and easy to control.

Description

technical field [0001] The invention relates to pigment production technology, in particular to a pretreatment method of zircon powder and a preparation method of vanadium zirconium blue material. Background technique [0002] At present, the ceramic pigment industry rarely uses zircon powder as raw material to produce vanadium zirconium blue material, mainly because the structure of zircon powder is stable and the bonding between bonds is firm. However, its composition and activity cannot meet the requirements of fused zirconium, and its content of impurities such as alumina and titanium oxide is relatively high. Zircon powder needs to be pretreated to meet the reaction requirements of vanadium-zirconium blue material. [0003] The invention patent with the patent number of 03131530.5 discloses a method for manufacturing vanadium-zirconium blue pigment, which uses zircon sand, soda ash, vanadium compounds and halides as raw materials, and is prepared by ball milling, calci...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C1/28C09C3/04C09C3/06C01G25/00
CPCC01G25/00C09C1/0012C09C1/28C09C3/003C09C3/006C09C3/041C09C3/043C09C3/06
Inventor 程诗忠叶旦旺李小毅包晓刚范志强
Owner SANXIANG ADVANCED MATERIALS
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