Inventor
CHEUNG HUNG-CHEUN
US8 patents
⚠️ This page may combine multiple inventors who share the name “CHEUNG HUNG-CHEUN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CELANESE INT CORP
7 patentsUS6627770B1Sep 30, 2003
Method and apparatus for sequesting entrained and volatile catalyst species in a carbonylation process
CELANESE INT CORP347 citations98
US6677480B2Jan 13, 2004
Process control in production of acetic acid via use of heavy phase density measurement
CELANESE INT CORP32 citations91
US6211405B1Apr 3, 2001
Addition of iridium to the rhodium/inorganic iodide catalyst system
CELANESE INT CORP51 citations89
US6667418B2Dec 23, 2003
Oxidation treatment of a recycle stream in production of acetic acid by methanol carbonylation
CELANESE INT CORP23 citations88
US6458995B1Oct 1, 2002
Catalytic composition for carbonylation including iridium and pyridine polymers
CELANESE INT CORP7 citations69
US6323364B1Nov 27, 2001
Rhodium/inorganic iodide catalyst system for methanol carbonylation process with improved impurity profile
CELANESE INT CORP13 citations69
US5898087AApr 27, 1999
Addition of amine to improve parafomaldehyde
CELANESE INT CORP6 citations60