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Preparing method and use for ankangite-type non-commensurability modulation structure material

A structural material and well-being technology, applied in the field of preparation and application of inorganic materials, can solve problems such as difficulty in achieving large-scale application, hindering development, artificial preparation processes and specific uses that have not been studied in detail, and achieve low cost, stable process, and low cost. Efficient effect

Inactive Publication Date: 2007-09-12
李国武 +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, scientific and technological workers have not done detailed research on the artificial preparation process and specific uses of such materials, and it is difficult to achieve large-scale applications, which hinders its further development.

Method used

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  • Preparing method and use for ankangite-type non-commensurability modulation structure material
  • Preparing method and use for ankangite-type non-commensurability modulation structure material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment 1 Raw material according to following ratio (molar ratio) BaCO 3 :TiO 2 :Al 2 o 3 =0.8:6.4:0.8 Weighing, according to the weight ratio of the mixture to deionized water and corundum balls is 1:2:2, add deionized water and corundum balls respectively, ball mill in a ball mill for 20h, and dry at 150°C , placed in a corundum crucible, and calcined at a high temperature of 1300 ° C for 2 hours to obtain the desired material.

Embodiment 2

[0026] Embodiment 2 Raw materials are according to the following ratio (molar ratio) Ba(NO 3 ) 2 :TiCl 4 : Al(NO 3 ) 3 9H 2 O:H 2 O=0.8: 6.4: 1.6: 500, make transparent solution, add additive citric acid, its addition is 3wt% of raw material quality, add additive polyethylene glycol, its additive amount is 2wt% of raw material quality, mix homogeneously, After removing moisture at 200°C, it was calcined at 1200°C for 3 hours to obtain the desired material.

Embodiment 3

[0027] Embodiment 3 Raw material according to the following ratio (molar ratio) Ba(NO 3 ) 2 :TiCl 4 : Cr(NO 3 ) 3 9H 2 O:H 2 O=0.8: 6.4: 1.6: 500, make transparent solution, add additive citric acid, its addition is 3wt% of raw material quality, add additive polyethylene glycol, its additive amount is 2wt% of raw material quality, mix homogeneously, After removing moisture at 200°C, it was calcined at 1200°C for 3 hours to obtain the desired material.

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Abstract

This invention utilizes a high temperature solid-phase method and a soft chemosynthetic method to prepare a series of good-health mine structure materials: [Bax(Ti8-2xM2x)O16(0.5<x<1.6, M=Al, Cr, Co)], in which, the high temperature solid-phase method includes: preparing the materials according to the mol ratio: BaCO3 : TiO2 : M2O3, ball-milling and mixing them uniformly and then calcining them under 1300-1400deg.C to get the necessary material, the soft chemosynthetic method includes: preparing them to a transparent solution according to the mol ration of Ba(NO3)2 : TiCl4 : M(NO3)2-3.yH2O :H2O and adding citric acid and polyglycol in the volume of the mass of the raw material of 3-5wt% and 2-4wt% to be dried under 150-250deg.C then to be calcined to get the material needed, which can be used in solidifying Cs and Sr nucleus scraps.

Description

technical field [0001] The invention relates to the development of two preparation methods and applications of a class of ankangite-type structural materials. It belongs to the field of preparation and application of inorganic materials. Background technique [0002] Ankang Mine is a new natural mineral recognized by the International New Mineral Nomenclature Committee discovered by Comrade Xiong Ming in Ankang, Shaanxi in 1982. It is Ba, Ti (V, Cr) oxide, with a hollandite-type basic structure, and a general chemical formula: A x (B 8-y C y ) 8 o 16 , (0.5<x<1.6, 0<y<4) where A is a large cation, such as Ba, K, Rb, etc., B is a tetravalent small cation, such as Ti, Mn, etc., and C is a low-priced small cation such as: Al , Fe, Cr, V, Co, Ni, Zn, etc. In the structure, B-O octahedrons share edges to form double chains, and four groups of double chains share corners with each other to form a channel with a square column in the middle. The channel is filled ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/468C04B35/622
Inventor 李国武徐凯江阔熊明
Owner 李国武
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