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Composition for dispersing of particle, composition having particle dispersed therein, process for producing the same, and sintered compact of anatase titanium oxide

A technology of dispersing particles, anatase type, applied in dyeing low-molecular-weight organic compound treatment, titanium oxide/hydroxide, aluminum compound, etc., can solve problems such as difficulty in carrying out, and achieve high titanic acid concentration and excellent dispersion effect. Effect

Inactive Publication Date: 2007-04-11
TOYO INK SC HOLD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Especially in order to prepare a thick suspension, it is difficult to carry out the process except adding a polymer electrolyte as a dispersant.

Method used

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  • Composition for dispersing of particle, composition having particle dispersed therein, process for producing the same, and sintered compact of anatase titanium oxide
  • Composition for dispersing of particle, composition having particle dispersed therein, process for producing the same, and sintered compact of anatase titanium oxide
  • Composition for dispersing of particle, composition having particle dispersed therein, process for producing the same, and sintered compact of anatase titanium oxide

Examples

Experimental program
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Effect test

Embodiment 1

[0117] Tetraisopropoxytitanium (manufactured by Wako Pure Chemical Industries, Ltd.) and lactic acid (manufactured by Wako Pure Chemical Industries, Ltd.) were mixed so that the molar ratio (tetraisopropoxytitanium:lactic acid) became 1:1, and then mixed with Water (pure water) mixed. When water is added, the mixture immediately hydrolyzes to produce white turbidity, forming a very high viscosity solution. Then, stir with a stirrer for 2 weeks to obtain a colorless and transparent low-viscosity particle dispersion composition [metal component concentration (titanic acid concentration): 2mol / dm 3 ].

[0118] In addition, the same composition for particle dispersion can also be obtained when oxalic acid, citric acid, or tartaric acid (all manufactured by Nacalai Tesque Co., Ltd.) is used instead of the above-mentioned lactic acid. In addition, when titanium tetrabutoxide (manufactured by Wako Pure Chemical Industries, Ltd.) or aluminum triisopropoxide (manufactured by Nakalai ...

Embodiment 2

[0120] Titanium tetraisopropoxide (manufactured by Wako Pure Chemical Industries, Ltd.) was mixed with water (pure water). At this time, the mixed solution was immediately hydrolyzed to produce white turbidity, forming a very high viscosity solution. Then, lactic acid (manufactured by Wako Pure Chemical Industries, Ltd.) and the aforementioned tetraisopropoxytitanium were mixed so that the molar ratio (tetraisopropoxytitanium:lactic acid) became 1:1. Then, stir with a stirrer for 2 weeks to obtain a colorless and transparent low-viscosity particle dispersion composition [metal component concentration (titanic acid concentration): 2mol / dm 3 ].

[0121] In addition, the same composition for particle dispersion can also be obtained when oxalic acid, citric acid, or tartaric acid (all manufactured by Nacalai Tesque Co., Ltd.) is used instead of the above-mentioned lactic acid. In addition, when titanium tetrabutoxide (manufactured by Wako Pure Chemical Industries, Ltd.) or alumi...

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Abstract

The problems are to provide a composition for dispersing a particle that exhibits excellent dispersing effects as to various particle suspensions and leads no environmental loadings, a composition having a particle stably dispersed therein and a process for producing the same, and a sintered compact of anatase-type titanium oxide. The composition for dispersing of a particle of the present invention is characterized in being obtained by mixing a metal alkoxide containing a metal element having +3 to 5 valence (for example, titanium or the like), an organic acid (for example, lactic acid or the like) and water. The composition having a particle dispersed therein of the present invention is characterized in being comprising a particle (for example, an oxide particle or the like), the above composition for dispersing of a particle. The process for producing the composition having a particle dispersed therein of the present invention is characterized in comprising a mixing step of mixing the composition for dispersing of a particle, a particle and a solvent (for example, water or the like), wherein the amount of the composition to be mixed is adjusted depending on the isoelectric point of the particle.

Description

technical field [0001] The present invention relates to a composition for dispersing particles, a composition in which particles are dispersed, a method for producing the same, and an anatase-type titanium oxide sintered body. More specifically, it relates to a composition for dispersing particles having an excellent dispersion effect on various particle suspensions and having no environmental load, a composition in which particles are stably dispersed and a method for producing the same, and sintering of anatase-type titanium oxide body. [0002] The invention can be widely used in the fields of ceramic materials, photocatalyst materials, optical materials and electronic materials. Background technique [0003] Previously, in order to prepare the particle dispersion system, it was mainly to adjust the pH of the suspension and add a dispersant to utilize the electrostatic repulsion of the particles. As the dispersant, for example, inorganic electrolytes such as water glass...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01F17/00B01J35/02C01F7/02C01G23/04C04B35/46C09K23/00B01J35/00C01F7/026C01G1/02C09C1/36C09C1/40C09C3/08
CPCC04B35/46C04B2235/3232C09C1/407C09C1/3607C04B35/6263C04B2235/449B01J35/004C09C1/3669C04B2235/3251C04B2235/3231C01F7/026C04B2235/3217C01G1/02C04B35/62625C01P2006/22C09C3/08C04B2235/441B01F17/0085C09K23/017B01J21/06C01G23/04C09K23/00
Inventor 樱田修桥场稔高桥康隆大矢智一齐藤雅昭
Owner TOYO INK SC HOLD CO LTD
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