| 发明名称 |
PROCESS FOR REMOVING SOLUBLE METAL CATIONS IN IRON OXIDE PIGMENTS |
| 摘要 |
<p>The present invention relates to a process for removing soluble metal cations contained in iron oxide pigments comprising washing said iron oxide pigment with a ligand compound. The resulting pigments can be used as food colorants or to stabilizer plastics against ultraviolet light degradation.</p> |
| 申请公布号 |
CA1192723(A) |
申请公布日期 |
1985.09.03 |
| 申请号 |
CA19810392840 |
申请日期 |
1981.12.21 |
| 申请人 |
BASF WYANDOTTE CORPORATION |
发明人 |
PATIL, ARVIND S. |
| 分类号 |
C09C1/24;(IPC1-7):C09C1/24 |
主分类号 |
C09C1/24 |
| 代理机构 |
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代理人 |
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| 主权项 |
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| 地址 |
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