Method for preparing large size beta-type ammonium tetramolybdate monocrystal particle

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United States of America Patent

PATENT NO 11859314
APP PUB NO 20220403545A1
SERIAL NO

17834238

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Abstract

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A method for preparing large size beta-type ammonium tetramolybdate monocrystal particle includes industrial ammonium molybdate, ammonia, de-ionized water are used to prepare ammonium molybdate solution with concentration of 0.2˜0.6 g/ml; pH is adjusted to 5˜7, temperature is adjusted to the first temperature of 70˜90° C. to obtain the first ammonium molybdate solution; beta-type ammonium tetramolybdate crystal seed is put into crystallization container, and the first ammonium molybdate solution is poured in the crystallization container, to form crystallization system; the crystallization system stands still at room temperature, naturally cooling, the beta-type ammonium tetramolybdate crystal seed grows into large size beta-type ammonium tetramolybdate monocrystal particle. A beta-type ammonium tetramolybdate crystal seed is obtained by constant-temperature crystallization at 70˜90° C. The obtained beta-type ammonium tetramolybdate crystal seed is put stewing in the first ammonium molybdate solution and is naturally cooling to produce large size beta-type ammonium tetramolybdate monocrystal particle forms.

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Patent OwnerAddress
ZHENGZHOU UNIVERSITY450001 NEW CAMPUS OF ZHENGZHOU UNIVERSITY NO 100 SCIENCE AVENUE HIGH TECH ZONE ZHENGZHOU CITY HENAN PROVINCE ZHENGZHOU CITY HENAN PROVINCE 450001

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
He, Jilin Zhengzhou, CN 7 53
Li, Qingkui Zhengzhou, CN 1 0
Wang, Chengduo Zhengzhou, CN 1 0
Wu, Xiaochao Zhengzhou, CN 1 0
Yang, Kaijun Zhengzhou, CN 1 0
Zhang, Jing Zhengzhou, CN 966 8974

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