Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Catalyst and process for purification of crude terephthalic acid

Catalyst and process for purification of crude terephthalic acid

US Patent 4791226 · Granted Dec 13, 1988

Estimated economic value: $24,650,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Addition of mineral acids or salts thereof to a TMA production process2004
Conversion of a lower alkane1988
Process for purification of crude p-hydroxymethylbenzoic acid1988
Conversion of a lower alkane1987
Process for the manufacture of 1,4-bis[2-(4'-carbomethoxystyrenyl)] benzene1985
Method for manufacture of AMS-1B crystalline borosilicate molecular sieve with l1985
Process for preparing palladium on carbon catalysts for purification of crude te1984
Process for preparing palladium on carbon catalysts for purification of crude te1984
Process for purification of crude terephthalic acid1984
Process for purification of crude terephthalic acid1984
Process for purification of p-hydroxymethylbenzoic acid1984
Preparation of poly(p-methylenebenzoate) from p-hydroxymethylbenzoic acid1984