发明名称 |
YELLOW IRON OXIDE PIGMENT AND ITS MANUFACTURE |
摘要 |
<p>There is disclosed a process for producing yellow iron oxide pigment which comprises the precipitation of the yellow iron oxide pigment by the addition of a soluble metal carbonate in the presence of oxygen to a solution of a soluble ferrous salt wherein the pH of the reaction system is maintained at a value of approximately 4 or less during the precipitation reaction.</p> |
申请公布号 |
JPS5692125(A) |
申请公布日期 |
1981.07.25 |
申请号 |
JP19800169017 |
申请日期 |
1980.11.29 |
申请人 |
HELLENIQUE PROD ENGRAIS CHIM |
发明人 |
BANAYOTEISU GABOGIANISU |
分类号 |
C09C1/22;C01G49/02;C01G49/06;C09C1/24 |
主分类号 |
C09C1/22 |
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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