Title:
ブタン-1,4-ジオール、ガンマ-ブチロラクトン及びテトラヒドロフランの製造方法
Document Type and Number:
Japanese Patent JP4268335
Kind Code:
B2
Abstract:
A process is described for the production of butane-1,4-diol, gamma-butyrolactone and/or tetrahydrofuran. A vaporous stream containing maleic anhydride, water, and carbon oxides is contact in an absorption zone with a high boiling ester as solvent to form a solution of maleic anhydride in the high boiling ester which has a boiling point at the atmospheric pressure at least about 30° C. higher than that of maleic anhydride and is selected from di-(C1 to C4 alkyl) esters of alkyl dicarboxylic acids containing up to 3 carbon atoms, mono- and di-(C10 to C18 alkyl) esters of maleic acid, fumaric acid, succinic acid, and mixtures thereof, (C1 to C4 alkyl) esters of naphthalene-monocarboxylic acids, tri-(C1 to C4 alkyl) esters of aromatic tricarboxylic acids, and di-(C1 to C4 alkyl) esters of isophthalic acid. The maleic anhydride in the solution is stripped with a gaseous stream containing hydrogen thereby forming a vaporous stream comprising hydrogen and maleic anhydride, which is contacted in a hydrogenation zone with a heterogeneous hydrogenation catalyst to convert maleic anhydride to at least one C4 compound selected from butane-1,4-diol, gamma-butyrolactone and tetrahydrofuran.
Inventors:
Michael William Marshall Tuck
Michael Anthony Wood
Andrew George Heils
Michael Anthony Wood
Andrew George Heils
Application Number:
JP2000521062A
Publication Date:
May 27, 2009
Filing Date:
November 02, 1998
Export Citation:
Assignee:
Bus Es E
International Classes:
C07C29/149; C07D307/08; C07C31/20; C07D307/33; C07D315/00
Domestic Patent References:
| JP9508918A | ||||
| JP2000786A | ||||
| JP4352775A | ||||
| JP52063892A | ||||
| JP3170468A | ||||
| JP2233632A |
Foreign References:
| US4105674 | ||||
| WO1997043234A1 |
Attorney, Agent or Firm:
Satoshi Furuya
Kaoru Furuya
Takahiko Mizobe
Kaoru Furuya
Takahiko Mizobe