Process for production of tertiary butyl alcohol
AssigneeSumitomo Chemical Company, Limited
InventorsMasao Sada, Michio Kato, Yoshihide Mori, Michikazu Sano
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Abstract
An aqueous high concentration solution of tert-butyl alcohol can be produced with high conversion and high selectivity by using a material composition having special proportions of tert-butyl alcohol, water and isobutylene or an isobutylene-containing hydrocarbon mixture and reacting isobutylene with water in the presence of a cation exchange resin having sulfonic acid groups preferably in multi-stage reactors and separating inert hydrocarbons and unreacted isobutylene from the reaction solution in a distillation column.
Claims7
A process for producing tert-butyl alcohol, comprising contacting isobutylene or a C.sub.3 to C.sub.5 hydrocarbon mixture comprising C.sub.4 hydrocarbons as the major component, with water in the presence of a sulfonic acid group-containing cation exchange resin, wherein the composition in a reaction zone of tert-butyl alcohol, water and isobutylene or the hydrocarbon mixture is a uniform liquid composition within the closed area I-J-K-L-E-F-G-H-I in the accompanying triangular diagram wherein the points I to H have the following compositions in percents by weight:
- ______________________________________ tert-butyl isobutylene or alcohol water hydrocarbon mixture ______________________________________ I 62.5 22.0 15.5 J 59.8 12.5 27.7 K 48.5 6.7 44.8 L 21.6 2.2 76.2 E 24.0 0.3 75.7 F 53.8 1.0 45.2 G 70.5 1.7 27.8 H 78.0 2.6 19.4 ______________________________________
Dependencies are inferred from the claim text.