发明名称 |
Process for forming calcium nitrite |
摘要 |
Disclosed herein is a process for preparing aqueous solutions of calcium nitrite by forming a solution of sodium nitrite and calcium nitrate; cooling the solution to precipitate sodium nitrate; admixing calcium hydroxide with the residual aqueous phase and forming a double salt of calcium nitrite/calcium hydroxide; and decomposing the double salt in the presence of water to form a solution of calcium nitrite and insolubilize calcium hydroxide.
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申请公布号 |
US4294813(A) |
申请公布日期 |
1981.10.13 |
申请号 |
US19800189993 |
申请日期 |
1980.09.23 |
申请人 |
W. R. GRACE & CO. |
发明人 |
GAIDIS, JAMES M.;ROSENBERG, ARNOLD M. |
分类号 |
C01B21/50;C01D9/12;(IPC1-7):C01B21/20;C01D9/00 |
主分类号 |
C01B21/50 |
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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