GENERALLY SPHERICAL BARIUM CARBONATE PARTICLES, AND METHOD FOR PRODUCING GENERALLY SPHERICAL BARIUM CARBONATE PARTICLES
申请人:Shimizu Yusuke
公开号:US20120045381A1
公开(公告)日:2012-02-23
The present invention has an object to provide a method for producing particulate barium carbonate having desired properties such as high purity, fineness, and has a spherical shape. The present invention relates to a method of producing substantially spherical barium carbonate, including (A) mixing, in an aqueous medium, a barium compound with at least one first ingredient selected from the group consisting of gluconic acid or salts thereof, gluconolactone, glucoheptonic acid or salts thereof, and glucoheptonolactone, to prepare a mixture; and (B) reacting the barium compound with carbon dioxide or a water-soluble carbonate in the mixture, to produce substantially spherical barium carbonate.
本发明的目的是提供一种生产具有高纯度、细度和球形形状等所需特性的颗粒状碳酸钡的方法。本发明涉及一种生产基本球形碳酸钡的方法,包括(A)在水介质中混合一种钡化合物和至少一种选自葡萄糖酸或其盐、葡萄糖内酯、葡萄糖庚酸或其盐和葡萄糖庚内酯的第一成分,以制备混合物;和(B)在混合物中将钡化合物与二氧化碳或水溶性碳酸盐反应,以生产基本球形的碳酸钡。