Title:
【発明の名称】α―スルホ脂肪酸アルキルエステルアルカリ金属塩の薄色ペーストの製造方法
Document Type and Number:
Japanese Patent JP2957276
Kind Code:
B2
Abstract:
PCT No. PCT/EP91/00951 Sec. 371 Date Nov. 25, 1992 Sec. 102(e) Date Nov. 25, 1992 PCT Filed May 21, 1991 PCT Pub. No. WO91/18874 PCT Pub. Date Dec. 12, 1991.In the production of alpha -sulfofatty acid alkyl ester alkali metal salt pastes by reaction of fatty acid alkyl esters with gaseous SO3, subsequent after-reaction in liquid phase and neutralization with aqueous alkali metal hydroxide solutions, the crude sulfonation product is fed to an at least two-stage cascade of stirred tanks equipped with heating and cooling systems in which it is subjected with mechanical agitation to a temperature-controlled after-reaction until a degree of sulfonation of at least 90% is reached, after which the aged sulfonation product is further processed in known manner to alpha -sulfofatty acid alkyl ester alkali metal salt pastes.
Inventors:
KOORIHINON DEIITOMAARU
DORA ERIHI
PANTERU GYUNTAA
SHUMITSUTO UORUFUGANGU
BUREEDE NORUBERUTO
DORA ERIHI
PANTERU GYUNTAA
SHUMITSUTO UORUFUGANGU
BUREEDE NORUBERUTO
Application Number:
JP50972491A
Publication Date:
October 04, 1999
Filing Date:
May 21, 1991
Export Citation:
Assignee:
HENKERU KG AUFU AKUCHEN
International Classes:
C07C303/06; C07C303/32; C07C303/44; C07C309/17; C09K23/08; C11D1/28; (IPC1-7): C07C309/17; C07C303/06; C07C303/32; C07C303/44
Attorney, Agent or Firm:
Aoyama Ryo (1 person outside)