发明公开
EP2351798A1 METHOD FOR PRODUCING HIGH-PURITY CARBON BLACK
审中-公开
VERFAHREN ZUR HERSTELLUNG VON HOCHREINEM RUSS
- 专利标题： METHOD FOR PRODUCING HIGH-PURITY CARBON BLACK
- 专利标题（中）： VERFAHREN ZUR HERSTELLUNG VON HOCHREINEM RUSS
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申请号： EP09816283.7申请日： 2009-09-29
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公开(公告)号： EP2351798A1公开(公告)日： 2011-08-03
- 发明人: INOMATA Kazuya , UNAGAMI Runa , ADACHI Toko , ITO Atsushi
- 申请人： Lion Corporation
- 申请人地址： 3-7, Honjo 1-chome Sumida-ku Tokyo 130-8644 JP
- 专利权人： Lion Corporation
- 当前专利权人： Lion Corporation
- 当前专利权人地址： 3-7, Honjo 1-chome Sumida-ku Tokyo 130-8644 JP
- 代理机构： Hart-Davis, Jason
- 优先权： JP2008251559 20080929
- 国际公布： WO2010035871 20100401
- 主分类号： C09C1/56
- IPC分类号： C09C1/56 ; C09C1/48
摘要：
The invention provides a method for producing a purified carbon black by removing metal from the aqueous dispersion of carbon black, wherein the metal is removed by bringing the aqueous dispersion of carbon black into contact with at least one organic acid selected from the group consisting of glycolic acid, ascorbic acid and malonic acid. The invention can provide a method for producing the purified carbon black where the metal components such as iron and the other metals contained as the impurities in carbon black can be reduced.
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