Invention Grant
US09169126B2 Generally spherical barium carbonate particles, and method for producing generally spherical barium carbonate particles
有权
通常为球形的碳酸钡颗粒，以及生产通常为球形的碳酸钡颗粒的方法
- Patent Title: Generally spherical barium carbonate particles, and method for producing generally spherical barium carbonate particles
- Patent Title (中): 通常为球形的碳酸钡颗粒，以及生产通常为球形的碳酸钡颗粒的方法
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Application No.: US13254599Application Date: 2010-03-25
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Publication No.: US09169126B2Publication Date: 2015-10-27
- Inventor: Yusuke Shimizu , Hiroyuki Izumikawa
- Applicant: Yusuke Shimizu , Hiroyuki Izumikawa
- Applicant Address: JP Osaka
- Assignee: Sakai Chemical Industry Co., Ltd.
- Current Assignee: Sakai Chemical Industry Co., Ltd.
- Current Assignee Address: JP Osaka
- Agency: Hamre, Schumann, Mueller & Larson, P.C.
- Priority: JP2009-091205 20090403
- International Application: PCT/JP2010/055230 WO 20100325
- International Announcement: WO2010/113757 WO 20101007
- Main IPC: B01D53/62
- IPC: B01D53/62 ; C01F11/18 ; C09C1/02
Abstract:
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.
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