发明名称 |
MANUFACTURE OF COPPER-CONTAINING SOLUTION FROM COPPER-CONTAINING CATALYST COMPOSITION |
摘要 |
<p>A substantially iron-free copper nitrate solution is made by dissolving a copper-containing solid catalyst composition such as a used copper-zinc oxide-alumina methanol synthesis catalyst in nitric acid and controlling the acid concentration at a level such that any iron oxide present in the composition remains substantially undissolved. The acid concentration during dissolution is preferably under 4 molar. Alternatively or additionally the terminal pH is greater than 1.0. The resulting solution is pure enough for reconversion to catalyst by co-precipitation.</p> |
申请公布号 |
JPS60108320(A) |
申请公布日期 |
1985.06.13 |
申请号 |
JP19840220333 |
申请日期 |
1984.10.19 |
申请人 |
IMPERIAL CHEM IND LTD |
发明人 |
JIEEMUZU ROBAATO JIENINGUSU |
分类号 |
C01G3/08;C22B15/00 |
主分类号 |
C01G3/08 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|