阅读说明：本技术 制备浅色二盐的方法 (Process for preparing light-coloured disalts ) 是由 C·布鲁恩 A·贝勒 R·埃斯库申 H-C·拉茨 T·赫芬纳 于 2018-05-22 设计创作，主要内容包括：本发明涉及一种制备浅色含水表面活性剂组合物的方法,所述组合物包含：相对于整个组合物为10-60重量％的一种或多种通式(I)的α-磺基脂肪酸二盐(A),R<Sup>1</Sup>CH(SO<Sub>3</Sub>M<Sup>1</Sup>)COOM<Sup>2</Sup>(I),其中基团R<Sup>1</Sup>为具有6-18个碳原子的直链或支化烷基或烯基,基团M<Sup>1</Sup>和M<Sup>2</Sup>彼此独立地选自H、Li、Na、K、Ca/2、Mg/2、铵和链烷醇胺；和水,其中所述方法的特征在于将通式(Ia)的脂肪酸R<Sup>2</Sup>CH<Sub>2</Sub>COOH(Ia),其中基团R<Sup>2</Sup>表示具有6-18个碳原子的直链或支化烷基或烯基,(i)用气态三氧化硫进行磺化,(ii)将所得的酸性磺化产物—任选在陈化后—中和,然后(iii)用过氧化氢对其进行漂白,其中漂白在高于7的pH下在80-95℃的温度范围内在相对于整个组合物为50-500ppm的稳定剂存在下进行,所述稳定剂选自氧化镁、镁盐、水玻璃、次氮基三乙酸、乙二胺四乙酸、葡糖酸及其盐。(The present invention relates to a process for preparing a light-colored aqueous surfactant composition comprising: 10-60% by weight, relative to the total composition, of one or more alpha-sulfofatty acid di-salts (A), R) of general formula (I) 1 CH(SO 3 M 1 )COOM 2 (I) Wherein the radical R 1 Is a linear or branched alkyl or alkenyl radical having 6 to 18 carbon atoms, the radical M 1 And M 2 Independently of one another, from H, Li, Na, K, Ca/2, Mg/2, ammonium and alkanolamines; and water, wherein the process is characterized in that a fatty acid R of the general formula (Ia) 2 CH 2 (COOH Ia) wherein the group R 2 Representing a linear or branched alkyl or alkenyl radical having 6 to 18 carbon atoms, (i) sulphonation with gaseous sulphur trioxide, (ii) neutralisation of the resulting acidic sulphonation product, optionally after ageing, and (iii) bleaching it with hydrogen peroxide, wherein the bleaching is carried out at a pH above 7 in the temperature range of 80 to 95 ℃ in the presence of 50 to 500ppm, relative to the total composition, of a stabiliser selected from the group consisting of magnesium oxide, magnesium salts, water glass, nitrilotriacetic acid, ethylenediaminetetraacetic acid, gluconic acid and salts thereof.)