Title:
アルキレンオキシドを調整する方法
Document Type and Number:
Japanese Patent JP3844492
Kind Code:
B2
Abstract:
A process of preparing alkylene oxides comprises steps of: (1) optionally forming a hypochlorite solution; (2) contacting chlorine with a solution of a hypochlorite below about 60 DEG C., and a pH of less than about 5.5, with sufficient micromixing to achieve a product hypochlorous acid in a yield of at least about 80 percent; (3) separating at least a portion the hypochlorous acid from an aqueous metal chloride solution wherein the solution is sprayed as droplets; (4) distilling the remaining liquid phase; (5) absorbing the hypochlorous acid and dichlorine monoxide in low-chlorides water to produce a low-chlorides aqueous hypochlorous acid solution; (6) contacting the low-chlorides aqueous hypochlorous acid solution with an olefin in a continuous process to form a olefin chlorohydrin; (7) optionally contacting the olefin chlorohydrin with a base to form a alkylene oxide and a salt solution; and (8) optionally separating the alkylene oxide from the salt solution. (9) optionally removing chlorates from the chloride brine by contacting the chlorates with acid to convert the chlorates to chlorine; and (10) optionally recycling the chlorine. The process yields particularly high yields of the alkylene oxide without substantial production of by-products.
Inventors:
Trent, David El
George Quadourder
Virgin, kim jie
Greminger, Douglas Sea
Coranec, david jay
Stuart, Eric J.
Curtis N, Swisher
Tiltwid Jojo, Cheryl A.
Tiltwid Jojo, Danil
George Quadourder
Virgin, kim jie
Greminger, Douglas Sea
Coranec, david jay
Stuart, Eric J.
Curtis N, Swisher
Tiltwid Jojo, Cheryl A.
Tiltwid Jojo, Danil
Application Number:
JP51510295A
Publication Date:
November 15, 2006
Filing Date:
November 09, 1994
Export Citation:
Assignee:
Dow Global Technologies Inc.
International Classes:
C07D301/26; C01B11/04; C01B11/06; C07C29/66; C07C33/42
Domestic Patent References:
| JP54096495A |
Foreign References:
| GB543944A |
Attorney, Agent or Firm:
Kazuo Shamoto
Tadashi Masui
Yasushi Kobayashi
Akio Chiba
Hiroyuki Tomita
Tatsuo Tomizu
Takako Koiso
Tadashi Masui
Yasushi Kobayashi
Akio Chiba
Hiroyuki Tomita
Tatsuo Tomizu
Takako Koiso