Process for producing tetrahydrofuran and 1,4-butanediol

Details Process for producing tetrahydrofuran and 1,4-butanediol Process for producing tetrahydrofuran and 1,4-butanediol

1979-12-12

1981-05-19

Jiles, Henry R.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

568858, C07D30708, C07C 3120

Patent

active

042684471

ABSTRACT:
A process for producing simultaneously tetrahydrofuran and 1,4-butanediol in any desired proportion which comprises (a) reacting the acetic ester of 1,4-butanediol with a theoretical or smaller quantity, based on said acetic ester, of water (preferably 0.2-0.8 mole of water per mole of said acetic ester) in the presence of an acidic catalyst, (b) distilling, in the first distillation column, the reaction mixture to separate it into a distillate comprising tetrahydrofuran as major constituent and a bottom stream comprising as major constituent the acetic ester of 1,4-butanediol and (c) subjecting, in the second reaction-distillation column, at least a part of said bottom stream to a counter-current gas-liquid contact reaction with methanol, the quantity of said methanol being preferably 1-5 moles per mole of the acetate group of the acetic ester, in the presence of an acidic or basic catalyst and, simultaneously therewith, separating the reaction mixture into a bottom stream comprising 1,4-butanediol as major constituent and a distillate comprising methyl acetate as major constituent. By this process, methanol and catalyst can be economized to a great extent.

REFERENCES:
patent: 4156685 (1979-05-01), Tanabe et al.

Affiliated with

Also associated with

Rating

Process for producing tetrahydrofuran and 1,4-butanediol 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 producing tetrahydrofuran and 1,4-butanediol, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for producing tetrahydrofuran and 1,4-butanediol will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1488892