Ion-exchange resins, their preparation and uses
US6017969A · kind A · utility
4Cited by
7References
17Claims
0Family size
Assignee
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Key dates
| Filing date | May 20, 1998 |
| Grant date | Jan 25, 2000 |
| Priority date | — |
| Expiry date | May 20, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J47/016
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
An ion-exchange resin stabilized against shrinkage, the resin being loaded with at least one amphiphilic ion in the absence of sodium cations. Also a process for removing iodide compounds from a liquid carboxylic acid and/or carboxylic acid anhydride obtained from the Group VIII noble metal catalysed, alkyl iodide co-catalysed carbonylation of alcohols and/or their reactive derivatives by contacting the liquid carboxylic acid and/or carboxylic acid anhydride with the ion-exchange resin stabilized against shrinkage as aforesaid, the ion-exchange resin being loaded with one or more of the metals silver, palladium or mercury.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.