Process for synthesizing yttrium n-vanadate and its derivative

A synthesis method and derivative technology, applied in the fields of vanadium compounds, chemical instruments and methods, inorganic chemistry, etc., can solve the problems of large energy consumption, high requirements for heating equipment configuration, unsatisfactory, etc., and achieve reduced energy consumption and easy large-scale Batch product preparation, effect of prolonging service life

Inactive Publication Date: 2005-06-22
SOUTH CHINA NORMAL UNIVERSITY
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  • Summary
  • Abstract
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  • Claims
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Problems solved by technology

However, the above-mentioned preparation process needs to consume a lot of energy, and the configuration requirements of heating equipment in production are relatively high, so it is not ideal

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1—— 4

[0018] Embodiment 1 - tetragonal configuration YVO 4 preparation of

[0019] Accurately weigh the template agent CaCl according to the 20% ratio (Wt%) of the total weight of the reactant (excluding the template agent, the same below). 2 , and with V 2 o5 , Y 2 o 3 mixed (molar ratio V 2 o 5 : Y 2 o 3 =0.9:1.0), while adding grinding aid absolute ethanol, grinding in agate mortar or ball mill. Dry the above ground mixture in hot air, put it into a corundum crucible, compact it, put it into a heating container, heat it at 140°C for 6.0 hours, take it out and grind it, put it into a corundum crucible, and compact it. Then put it into a heating container, heat it at 800°C for 1 hour, take it out and grind it while it is hot. Wash off the template CaCl with deionized water 2 After drying, the product is obtained.

[0020] Example 2 - tetragonal configuration Y 0.95 VO 4 : Eu 3+ 0.05 Preparation of red luminescent material

[0021] Template agent is NaCl, MgCl 2 wit...

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Abstract

A method for synthesizing yttrium orthovanadate and its derivatives is the low-temperature self-assembly solid-phase synthesis of yttrium orthovanadate and its derivatives in the presence of a template, including mixing and grinding, drying and loading, pre-sintering and grinding. sampling, burning and washing and drying steps. The method has the advantages of low cost, low energy consumption, low requirements for production equipment configuration, and the like.

Description

(1) Technical field [0001] The present invention relates to yttrium orthovanadate (YVO 4 ) and its derivatives, belonging to the field of material synthesis and technology. (2) Background technology [0002] YVO 4 (yttrium orthovanadate, referred to as yttrium vanadate) and its derivatives have been used in many high-tech industries. YVO 4 It is an important matrix of many optical materials. YVO 4 Derivatives (i.e. YVO 4 It is the parent or matrix, in which Y, V are partially substituted by other elements to generate a series of substances), such as Y(P,V)O 4 : Dy 3+ (Yttrium vanadium phosphate doped with dysprosium) is an important two-color ultraviolet luminescent material, which has been used in high-pressure mercury lamps to make up for the problem of insufficient color rendering; YVO 4 :Eu 3+ (Yttrium vanadate doped with europium) is an important red luminescent material, which can be used in red components in low-voltage trichromatic energy-saving lamps or as ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G31/00
Inventor 铁绍龙申俊英
Owner SOUTH CHINA NORMAL UNIVERSITY
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