Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acids and salts thereof
Reexamination Certificate
2006-08-29
2010-11-23
Oh, Taylor Victor (Department: 1625)
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acids and salts thereof
C562S608000
Reexamination Certificate
active
07838701
ABSTRACT:
Disclosed is a method of controlling a separation process for removing permanganate reducing compounds from a process stream in the methanol carbonylation process for making acetic acid, where the method includes the steps of measuring the density of a stream containing acetaldehyde and methyl iodide, optionally calculating the relative concentrations of acetaldehyde and methyl iodide in the stream, and adjusting distillation or extraction process parameters based on the measured density or one or more relative concentrations calculated therefrom.
REFERENCES:
patent: 3769329 (1973-10-01), Paulik et al.
patent: 5001259 (1991-03-01), Smith et al.
patent: 5026908 (1991-06-01), Smith et al.
patent: 5144068 (1992-09-01), Smith et al.
patent: 5416237 (1995-05-01), Aubigne et al.
patent: 5625095 (1997-04-01), Miura et al.
patent: 5723660 (1998-03-01), Morimoto et al.
patent: 5756836 (1998-05-01), Shimizu et al.
patent: 5783731 (1998-07-01), Fisher et al.
patent: 6143930 (2000-11-01), Singh et al.
patent: 6339171 (2002-01-01), Singh et al.
patent: 6552221 (2003-04-01), Hallinan et al.
patent: 2003/0144548 (2003-07-01), Huckman et al.
patent: 0 487 284 (1992-05-01), None
patent: 0 161 874 (1995-11-01), None
patent: 0 687 662 (1995-12-01), None
patent: 9-40590 (1997-02-01), None
Derrick J. Watson,The Cativa Process for the Production of Acetic Acid inCatalysis of Organic Reactions, vol. 75, pp. 368-380 (1998).
R.T. Eby & T/C. Singleton,Mechanical Carbonylation to Acetic Acid, inApplied Industrial Catalysis, vol. 1, pp. 275-296 (1983).
Kulkarni Shrikant
Trueba David A.
Celanese International Corporation
Oh Taylor Victor
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