发明名称 |
METHOD FOR PRODUCING HIGH OPACIFYING KAOLIN PIGMENT |
摘要 |
A method of producing a high opacity paper filler pigment which comprises subjecting an iron-stained titania-containing kaolin to beneficiation by froth flotation or high intensity magnetic separation; recovering the froth or magnet rejects, dewatering and drying the rejects to produce a kaolin enriched in titania, and calcining the same at a temperature in the range of about 1500.degree. to about 2200.degree.F.
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申请公布号 |
CA2007711(C) |
申请公布日期 |
2000.06.27 |
申请号 |
CA19902007711 |
申请日期 |
1990.01.12 |
申请人 |
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发明人 |
DUNAWAY, WEYMAN;TURNER, RALPH E. |
分类号 |
C09C3/00;D21H17/69;(IPC1-7):C09C3/00 |
主分类号 |
C09C3/00 |
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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