Process for purification of crude terephthalic acid
US4467111A · kind A · utility
18Cited by
10References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 21, 1983 |
| Grant date | Aug 21, 1984 |
| Priority date | — |
| Expiry date | Jul 21, 2003 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2235/15
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A catalyst and process for purifying crude terephthalic acid wherein the catalyst is prepared by contacting a carbonaceous support with an aqueous solution of sodium tetranitropalladate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.