128111-61-5Relevant articles and documents
Dual catalytic activity of amberlyst-15 in the large-scale and sustainable synthesis of dioctyl sodium sulfosuccinate (DOSS)
Fateh, Davod S.,Moghadam, Seyed M. M.,Salehi, Samie,Tarin, Mojtaba
, p. 555 - 559 (2020/07/17)
Dioctyl sodium sulfosuccinate (DOSS) as a unique material both as a drug and surfactant was synthesized by a facile and economical synthetic method. In this project, Amberlyst-15 was select-ed as a heterogeneous recyclable bronsted solid acid for this synthesis both in the esterification of ma-leic anhydride and sulfonation of dioctyl maleate (DOM) ester. This catalyst was easily recovered and reused at least for 13 consecutive cycles without a significant loss in the catalytic activity. In this paper, we wish to uncover a catalytic approach for the synthesis of DOSS through a recyclable, easily recov-erable, and commercially available catalyst, namely Amberlyst 15, under mild conditions.
Subsititue Material As Well As Production Process And Application
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Paragraph 0095; 0096, (2017/08/28)
The invention relates to a production process of a functionalized material containing acid groups and an application thereof. The material is used as a nonhomogenous catalyst, and can be used for removing organic and inorganic compounds in product streams, process streams and waste liquid, or can be used as a cation and anion exchanger, a metal chromatography material, a solid phase purifying or extracting material, a fixed biological moleculaar material, a solid phase sythesizing material and a chromatography material. The invention also relates to a novel sulfonic acid or hypophosphorous organic funtionalized silica gel and metal salts thereof.
Method for synthesizing di-2-ethylhexyl maleate
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Paragraph 0015-0017, (2017/08/30)
The invention relates to a method for synthesizing di-2-ethylhexyl maleate. The method comprises the following specific steps: adding maleic anhydride, diethylhexanol, methylbenzene and heteropolyacid catalyst H4[Ti(H2O)TiW11O39].7H2O into a three-opening bottle with a thermometer, a condensation pipe and a water distributer, wherein a molar ratio of the maleic anhydride to the diethylhexanol is 1 to (2.1 to 3.5), the consumption of the methylbenzene is 25 to 50 percent of the total weight of the materials, the consumption of the catalyst is 0.15 to 0.65 percent of the total weight of the materials, stirring, heating until reflux, reacting for 2 to 4 hours, distilling at normal pressure to recycle the methylbenzene, cooling, determining an acid value, filtering to recycle the catalyst, and decompression distilling to obtain a product. According to the method, the heteropolyacid H4[Ti(H2O)TiW11O39].7H2O is adopted as the catalyst to synthesize the di-2-ethylhexyl, so that while the corrosion and pollution problem is avoided, the method has the advantages of simplicity in operation, less consumption of catalyst, high activity, recyclability, high esterification rate and the like.
