炭酸バリウムの製造方法

Japanese Patent JP5599439

B2

The present invention relates to a method for preparing barium carbonate and the barium carbonate product obtained by the method. The method for preparing barium carbonate comprises: (1) Adding barium hydroxide octahydrate crystal into the ice-water bath and mixing them, and controlling the temperature to be within 0ˆ¼5°C; (2) Introducing carbon dioxide into the mixture obtained from the step (1), till pH value of the reaction solution reaches 6.0-7.0; (3) Carrying out solid-liquid separation for the solid-liquid mixture obtained from the step (2), drying the obtained solid so as to obtain barium carbonate product. The present invention method solves the problem in the prior art that the character of low strontium and the character of large specific surface area cannot co-exist, which makes the property of barium carbonate product can not affect the sintering temperature, and thus the property material is improved.

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Gian ジグアン
フア Boss
ウフェイ

JP2012201147A

October 01, 2014

September 13, 2012

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Kueichou 紅星 development 股ふん, Inc.
深せ -- 1 copy of 市昊 investment development, Inc.

C01F11/18

Mitsuru Kimura
Takanori Menju
Taiji Morikawa
Yasuhito Amemiya
Kei Sakurada
Mie Hideki

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