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

A technology of structural materials and mineral types, applied in the field of preparation and application of inorganic materials, can solve problems such as difficulty in achieving large-scale application, manual preparation process and specific use without detailed research, hindering development, etc., to achieve low cost and stable process , high efficiency effect
CN101033131BInactive Publication Date: 2010-05-19李国武 +3
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
李国武
Publication Date
2010-05-19
Estimated Expiration
Not applicable · inactive patent

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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.
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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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