C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
202/63
C07C 37/78 (2006.01) C07C 39/07 (2006.01)
Patent
CA 1152933
Abstract of the Disclosure: A improvement in the process for isolating and recovering meta- and para-cresols from crude cresom- containing compositions composed of cresol components, unreacted cymene components and high-boiling by-products, by distillation in a distillation zone, the characteristic features residing in that; (i) the unreacted cymene components content in the crude cresol-containing composition is adjusted to 5-25% by weight of said composition after the adjustment and the water content of said composition is adjusted to become 0.17-1.5 times by weight of the total cresol- components present in the composition, before the crude cresol-containing composition is supplied to the distilla- tion zone, and also in that (ii) in said distillation zone, the cresol com- ponent containing ortho-cresol at a higher concentration than that in the supplied crude cresol-containing composi- tion is distilled off as an azeotropic mixture with the unreacted cymene components and water, whereby the cresol component composed of more condensed meta- and para-cresols being isolated and recovered.
355616
Nakagawa Jun'ichi
Ohtani Yoshitaka
Mitsui Petrochemical Industries Ltd.
Smart & Biggar
LandOfFree
Process for isolating and recovering meta- and para-cresols... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for isolating and recovering meta- and para-cresols..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for isolating and recovering meta- and para-cresols... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-544447