PROCESS FOR PRODUCING LIGHT-COLOURED PASTES OF -G (A)-SULFO FATTY ACID ALKYL ESTER ALKALI METAL SALTS

• Main Authors: SCHMIDT, WOLFGANG, WREDE, NORBERT, COLIGNON, DIETMAR, DORRA, ERICH, PANTHEL, GUENTER
• Format: Patent
• Language: English; Korean
• Published: 15.06.1999
• Edition: 6
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; ADHESIVES; ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES; CANDLES; CHEMISTRY; DETERGENT COMPOSITIONS; DETERGENTS; DYES; FATTY ACIDS THEREFROM; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC CHEMISTRY; PAINTS; POLISHES; RECOVERY OF GLYCEROL; RESIN SOAPS; SOAP OR SOAP-MAKING; USE OF SINGLE SUBSTANCES AS DETERGENTS

지방산 알킬 에스테르를 가스상 SO와 반응시키고 이어서 액체상에서 후처리하며 알칼리금속 수산화물 수용액으로 중화시키고, 술폰화 조 생성물을 가열 및 냉각계가 장치된, 교반 탱크의 적어도 2 단계 캐스케이드에 공급하여 기계적으로 교반하면서 술폰화도가 적어도 90 % 에 이를 때가지 온도 조절식 후반응을 수행하고 이어서 숙성된 술폰화 생성물에 공지방법으로 추가적인 공정을 행하여- 술포지방산 알킬 에스테르 알칼리 금속 염 페이스트를 제조하는 방법이 개시된다. 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.