发明名称 |
Förfarande för framställning av utfällt kalciumkarbonat med hög opacitet genom att låta natriumkarbonat reagera med kalciumhydroxid |
摘要 |
In the process for making calcium carbonate by the double decomposition reaction of sodium carbonate and calcium hydroxide in aqueous reaction medium the improvement of producing calcium carbonate having a scalenohedral particle shape and a rosette aggregate structure comprising adding said sodium carbonate in more than one stream to said calcium hydroxide over a period of 1 to 8 hours and maintaining said reaction medium in the range of 80 DEG to 140 DEG F. |
申请公布号 |
FI942815(A0) |
申请公布日期 |
1994.06.14 |
申请号 |
FI19940002815 |
申请日期 |
1994.06.14 |
申请人 |
P.H. GLATFELTER COMPANY |
发明人 |
MERRIS, JR., CHARLES S. |
分类号 |
C01F11/18;C09C1/02;D21H17/67;D21H21/22;(IPC1-7):C01F |
主分类号 |
C01F11/18 |
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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