发明名称 |
PROCESS OF CONCENTRATION AND PURIFICATION OF ORGANIC COMPOUNDS |
摘要 |
A process aimed at concentrating and purifying raw aqueous solutions of water-soluble non-ionic organic compounds, preferably those which are useful as contrast enhancing agents in diagnostic procedures, such as for example X-ray, NMR and ultrasound diagnosis, through the use of techniques of tangential filtration on membranes is disclosed. This process also allows the recovery of valuable reactants in excess and of reaction solvents, if any, and it is particularly useful for purifying expensive non-ionic iodinated compounds, which now have been widely used in X-ray imaging. |
申请公布号 |
WO9214539(A1) |
申请公布日期 |
1992.09.03 |
申请号 |
WO1992EP00341 |
申请日期 |
1992.02.19 |
申请人 |
BRACCO S.P.A.;TECNOFARMACI S.P.A. |
发明人 |
VISCARDI, CARLO;PIVA, RODOLFO |
分类号 |
A61K49/00;A61K49/04;B01D61/02;B01D61/12;B01D61/14;B01D61/58;C07C231/24;C07C237/46 |
主分类号 |
A61K49/00 |
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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