16 Alkyl Diphenyl Ether Disulfonate Synthesis Technology

In this paper, prepared at home and abroad, and then by the sulfonation of alkyl diphenyl ether and the other in the reaction of alkyl diphenyl ether sulfonates basis, withα-16 olefin and ether alkylation Reaction of hexadecyl diphenyl ether, and so on via the reaction of sulfonation of alkyl diphenyl ether disulfonate 16 the reaction conditions were more comprehensive study. Meanwhile, the yield reaction mechanism and control methods are analyzed and optimized, the product of single-purpose 16 - alkyl diphenyl ether disulfonate were analyzed to confirm the structure and to study a single 16 - alkyl ether carmine for ASP flooding in Daqing oil field the possibility of surfactant. This research work to accelerate the alkyl diphenyl ether sulfonate surfactant rich industrial engineering practice and tertiary oil recovery surfactants, has a role in promoting and practical significance.Systematic literature review described both here and abroad alkyl diphenyl ether sulfonates research work and the performance of its applications do a more comprehensive explanation. Up to now, although there are many reports in this series of studies, but not the 16 industrialized sodium alkyl diphenyl ether products in the market supply. Alkyl diphenyl ether disulfonate as a unique structure and properties of widely used water-based multi-parent surfactant, alkyl diphenyl ether on the international research sulfonate attached great importance to and have some news, we This paper carried out the synthesis of alkyl diphenyl ether sulfonates research on the promotion of technological progress and the development of related industries, is of great significance.16 alkyl diphenyl ether sulfonate with 16 traditional process is the reaction of alcohols with hexadecyl diphenyl ether, in order to avoid patent restrictions, we use C16,α-olefins with the occurrence of alkyl ether glycosylation reaction of hexadecyl diphenyl ether, and then by generating 16 alkyl diphenyl ether sulfonate acid, and finally by the middle and generate 16 alkyl diphenyl ether disulfonate. Single-factor method were investigated 16 and diphenyl olefin alkylation reaction temperature, time, material ratio and the amount of catalyst, the optimum reaction conditions; sulfonation agents in 16 different alkyl diphenyl ether sulfonation reaction to fuming sulfuric acid (50%) the best.Sodium alkyl diphenyl ether in 16 properties, the main of the 16 alkyl diphenyl ether disulfonate surface and interfacial tension analysis of the performance tests and compound tests, the results show that as the chloride sodium decreased significantly after accessionγcmc, mainly of salts partial destruction of the hydration membrane, reduced the ionic surfactant ionic groups spread around the double layer can be electrically charged shield between polar ionic groups electrostatic repulsion, making the surface layer and the micelle surfactant molecule is more tightly arranged, easy to form micelles.Occur with 16 ene ether alkylation Friedel-Crafts reaction is, experimental results show that the single factor: the more appropriate reaction conditions areα-16 alkene and ether molar ratio 1.0:1.6;α-10 6 olefin molar ratio of 1.0:0.2 with AlCl3; reaction temperature at 90℃, reaction is more appropriate; more appropriate reaction time 6h; in these conditions, the yield can exceed 60%. Sulfonation is an introduction to organic molecules sulfonic (-SO2H) of the reaction. This choice fuming sulfuric acid (50%) as sulfonating agent obtained the highest content of active matter, choose one alkyl ether and fuming sulfuric acid molar ratio of 1.0:1.6 more appropriate product to 58.4% active matter content. IR, NMR and other characterization results of testing means that consistent with the molecular design. This synthesis of the different batches of the product of the interface have good performance characteristics. Ternary system formula is better than the situation of high alkaline concentration of low alkali concentration, indicating sodium hexadecyl diphenyl ether compound is more suitable for alkali flooding process.