Title:
【発明の名称】第3アルキルエーテルの製造方法および装置
Document Type and Number:
Japanese Patent JPH07504906
Kind Code:
A
Abstract:
PCT No. PCT/FI93/00097 Sec. 371 Date Sep. 16, 1994 Sec. 102(e) Date Sep. 16, 1994 PCT Filed Mar. 18, 1993 PCT Pub. No. WO93/19031 PCT Pub. Date Sep. 30, 1993The invention concerns a process and an apparatus for preparing tertiary ethers. According to the process, C4 to C6 isoolefins and possibly heavier olefins contained in the feedstock are reacted with lower aliphatic alcohols, in particular methanol or ethanol, in a catalytic distillation reactor system in order to produce the corresponding ethers. According to the invention, the reaction between the isoolefins and the alcohols is essentially carried out in at least one reactor (5-7) of the kind, which is combined with a distillation column (3) intended for product separation, by conducting at least a part of the liquid flow of the column through the reactor and returning it to a lower tray than the one from which it was taken. At least half of cation exchange resin is placed in the side reactor (5-7). In the process according to the invention, the catalyst can be rapidly changed without stopping the process. In order to improve conversion additional alcohol can be fed to at least one of the side reactors.
Inventors:
Ajama, Juhani
Eros, Isto
Jakula, Juha
Lindkwist, Petri
Eros, Isto
Jakula, Juha
Lindkwist, Petri
Application Number:
JP51630393A
Publication Date:
June 01, 1995
Filing Date:
March 18, 1993
Export Citation:
Assignee:
Nesteyu
International Classes:
B01J31/10; B01D3/00; C07B61/00; C07C41/06; C07C41/42; C07C43/04; (IPC1-7): C07C43/04; B01J31/10; C07C41/06; C07C41/42
Attorney, Agent or Firm:
Takashi Koshiba