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Layered titanic acid, lamellar titanic acid, lamellar titanium oxide and method for producing lamellar titanic acid

A titanic acid, layered technology, applied in chemical instruments and methods, titanates, titanium compounds, etc., can solve problems such as increasing energy consumption and reducing productivity

Inactive Publication Date: 2004-11-03
OTSUKA CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of freeze-drying or spray-drying method requires special equipment, reduces yield and increases energy consumption, and will be questioned

Method used

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  • Layered titanic acid, lamellar titanic acid, lamellar titanium oxide and method for producing lamellar titanic acid
  • Layered titanic acid, lamellar titanic acid, lamellar titanium oxide and method for producing lamellar titanic acid
  • Layered titanic acid, lamellar titanic acid, lamellar titanium oxide and method for producing lamellar titanic acid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] 27.64g of potassium carbonate, 4.91g of lithium carbonate, 69.23g of titanium dioxide and 74.56g of potassium chloride were mixed into raw materials after dry grinding. It was then fired at 1,100° C. for 4 hours. After burning, the sample was soaked in 10 kg of pure water, stirred for 20 hours, separated, washed with water, and dried at 110°C. The resulting white powder was identified as multilayered titanate K 0.80 Li 0.266 Ti 1.733 o 4 , it has an average particle size of 44 μm and an average thickness of 3 μm.

[0037] 65g of the K 0.80 Li 0.266 Ti 1.733 o 4 After being stirred and dispersed in 5kg3.5% hydrochloric acid, the K ions and Li ions in it are replaced by hydrogen ions or hydronium ions. Subsequent separation and washing with water resulted in multilayered titanic acid. K in multilayer titanic acid 2 The balance of O is 2.0%. The ion exchange rate of K reaches 92%, while the ion exchange rate of Li reaches more than 99%. The combined ion exchan...

Embodiment 2

[0039] Adopt the same condition as embodiment 1 to synthesize layered titanate, K 0.80 Li 0.266 Ti 1.733 o 4 . 65g of the K 0.80 Li 0.266 Ti 1.733 o 4 After being stirred and dispersed in 5kg of 0.17% hydrochloric acid, the K ions and Li ions in it are replaced by hydrogen ions or hydronium ions. Subsequent separation and washing with water resulted in multilayered titanic acid. K in multilayer titanic acid 2 The balance of O is 4.5%. The ion exchange rate of K reaches 82%, while the ion exchange rate of Li reaches more than 99%. The combined ion exchange capacity of K and Li reaches 86%. This multilayer titanic acid was dispersed in 5 kg of water. Subsequently, 250 g (11 equivalent %) of a 1% n-propylamine solution in water were added with stirring. After stirring for 30 minutes, 3.5% hydrochloric acid solution was added to adjust the acidity pH of the solution to 2.0. After stirring for a further 1 hour, the dispersion was isolated by suction filtration. Dispe...

Embodiment 3

[0041] The layered titanic acid was synthesized under the same conditions as in Example 1, except that the basic compound used in the delamination was 350 g (12 equivalent %) of 1% isopropanolamine solution. The measurement results showed that the K in the powder 2 The balance of O was 1.0%, the average particle diameter was 30 μm, and the average thickness was 0.2 μm.

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Abstract

A layered titanic acid, characterized in that it is produced by a method comprising subjecting a layered titanate represented by a general formula: AxMy &squ& zTi2-(y+z)O4, wherein A and M represent metals having a valence of 1 to 3 and being different from each other, &squ& represents a defect to be occupied by titanium, x is a positive and real number satisfying 0 < x < 1.0, y and z are positive and real numbers satisfying 0 < y+z < 1.0, to an acid treatment, to thereby substitute hydrogen ions or hydronium ions for 40 to 99 % of A and / or M ions; a lamellar titanic acid, characterized in that it is produced by a method comprising reacting the layered titanic acid with a basic compound, to thereby delaminate the layered titanic acid; and a lamellar titanium oxide, characterized in that it is produced by a method comprising subjecting the lamellar titanic acid to a heat treatment or the like.

Description

field of invention [0001] The present invention relates to layered titanic acid, layered titanic acid, layered titanium oxide, and layered titanic acid, which have many uses, including fillers for paints and resins, cosmetics, pigments and catalysts, and can also be used by themselves Properties, such as heat resistance, reinforcement, slippage, UV radiation resistance, heat radiation reflection, photocatalysis, gas resistance, and ion exchange properties. The invention also relates to a method for preparing layered titanic acid. Background of the invention [0002] By general formula: A x m y □ z Ti 2-(y+z) o 4 (wherein A and / or M are different metals, their valences are 1-3 respectively, □ represents the defect position of Ti, x is a positive real number, it is between 0<x<1.0, y and z are each 0 Or positive real numbers, they are between 0<y+z<1.0) the preparation method of the multi-layered titanate represented, has been published in " It has been stat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G23/00C01G45/00C01G49/00
CPCC01G23/002C01G49/009C01G45/006C01G23/005C01P2002/54C01P2004/61C01P2002/84C01P2004/64C01P2002/22C01P2002/52B82Y30/00C01P2004/62C01G23/003C01P2006/80
Inventor 犬伏昭嘉松永治惠广井良一
Owner OTSUKA CHEM CO LTD
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