发明申请
- 专利标题： METHOD FOR OBTAINING PRECIPITATED CALCIUM CARBONATE PARTICLES OF NANOMETRIC SCALE STRUCTURE
- 专利标题（中）： 获得纳米尺度结构的碳酸钙颗粒的方法
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申请号： US12238793申请日： 2008-09-26
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公开(公告)号： US20090082508A1公开(公告)日： 2009-03-26
- 发明人: Claude Vogels , Karine Cavalier , Didier Sy , Roberto Rosa
- 申请人： Claude Vogels , Karine Cavalier , Didier Sy , Roberto Rosa
- 申请人地址： BE Bruxelles
- 专利权人： SOLVAY (SOCIETE ANONYME)
- 当前专利权人： SOLVAY (SOCIETE ANONYME)
- 当前专利权人地址： BE Bruxelles
- 优先权： FR01/08909 20010704
- 主分类号： C08K3/26
- IPC分类号： C08K3/26 ; C01F11/18
摘要：
Process for the production of precipitated calcium carbonate particles, structured at the nanoscale, by carbonation of milk of lime in the presence of a crystallization controller selected from the following list: polyaspartic acid, dioctyl sodium sulphosuccinate, polyacrylic acid, the molecular weight of which is between 500 and 15 000, and citric acid. When the crystallization controller is citric acid, its concentration in the milk of lime is between 5 and 15%.
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