C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
C07D 307/89 (2006.01) C07C 51/265 (2006.01) C07C 51/31 (2006.01)
Patent
CA 2098152
221PUS04756 ABSTRACT The present invention is an improvement to the conventional process for the production of phthalic anhydride. In particular, the present invention enables the crude phthalic anhydride product to be recovered in a more efficient manner.
Chen Michael Shi-Kuan
Cook Philip Joseph
Gunardson Harold Henry
Ulrich Melinda Bedics
Air Products And Chemicals Inc.
Mcfadden Fincham
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