Patent ID: 9656939
Date: 2017-05-23
CPC Classifications: C07C,G01N

Claim:
1. A method for the production of acetic acid comprising: i. reacting, in a carbonylation reactor and the presence of a carbonylation catalyst, ingredients comprising: ii. measuring the concentration of a reference component and a second component in the reactor mixture by both infrared and Raman spectroscopic analyses; iii. determining the Adjusted Ratio of the concentration of the reference component as measured by infrared spectroscopy to the concentration as measured by Raman spectroscopy; iv. calculating the Adjusted Value for the second component by multiplying the concentration of the second component as measured by Raman spectroscopy by the Adjustment Ratio; and v. modifying a process condition in the carbonylation reactor or a separation unit, based upon the Adjusted Value.