BPA process improvement

Details BPA process improvement BPA process improvement

2011-03-08

2011-03-08

Davis, Brian J (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

C568S716000, C568S724000, C568S754000, C568S759000

Reexamination Certificate

active

07902408

ABSTRACT:
The present disclosure enables phenol recovery, purification and recycle in a simple, economic manner from waste streams from, for example, a phenol/acetone production process, e.g., a phenol/acetone plant or an upstream cumene hydroperoxide cleavage process step, and BPA production step, for use in the reaction with acetone to produce BPA. The disclosure therefore reduces the overall consumption of phenol in the production of BPA.

REFERENCES:
patent: 3963610 (1976-06-01), Hauschulz et al.
patent: 4469561 (1984-09-01), Sikdar et al.
patent: 4950805 (1990-08-01), Iimuro et al.
patent: 5344528 (1994-09-01), Bossler et al.
patent: 5345000 (1994-09-01), Moriya et al.
patent: 6071409 (2000-06-01), Bondy et al.
patent: 6806394 (2004-10-01), Evitt et al.
patent: 6824687 (2004-11-01), Panditrao et al.
patent: 6972345 (2005-12-01), Blaschke et al.
patent: 0 758 636 (2000-01-01), None
patent: 00/35847 (2000-06-01), None
patent: 2007/044139 (2007-04-01), None
Narasimhan et al., “Solubility and Equilibrium Data of Phenol-Water-n-Butyl Acetate System at 30° C.”, Journal of Chem. and Eng. Data., 7 (3) p. 340 (1962).
Narasimhan et al., “Solubility and Equilibrium Data of Phenol-Water-Isoamyl Acetate and Phenol-Water-Methyl Isobutyl Ketone Systems at 30° C.”, Journal of Chem. and Eng. Data., 7 (4) p. 457 (1962).

Affiliated with

Also associated with

Rating

BPA process improvement does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with BPA process improvement, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and BPA process improvement will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2772627