Process for preparing alkyl alcohol ether sulphonate or alkyl phenol ether sulphonate

Abstract

The invention provides a process for making alkyl alcohol ether sulfonate or alkyl phenol ether sulfonate, comprising the steps of: reacting alkyl alcohol ether or alkyl phenol ether with equal molar ratio with strong alkali or alkali metal to generate sodium salt or potassium salt of the alkyl alcohol ether or the alkyl phenol ether; adding hydroxyalkyl sulfonate and an alkaline catalyst to the sodium salt or the potassium salt of the alkyl alcohol ether or the alkyl phenol ether at a room temperature; adding solvent at the same time; reacting for 0.5 to 5 hours between 100 and 220 DEG C by means of azeotropy refluxing or evacuation, removing water which is generated by reaction, and obtaining alkyl alcohol ether sulfonate or alkyl phenol ether sulfonate. The invention has the advantages of convenient operation, simple process, easy control and low cost and so on.

Description

technical field

[0001] The invention relates to a process for preparing alkyl alcohol ether sulfonate or alkylphenol ether sulfonate through sulfoalkylation reaction of alkyl alcohol ether or alkylphenol ether and hydroxyalkylsulfonate. Background technique

[0002] Alkyl alcohol ether sulfonate or alkylphenol ether sulfonate is a new type of composite surfactant to adapt to the development of tertiary oil recovery technology. At present, the technical routes for preparing alkyl alcohol ether sulfonates or alkylphenol ether sulfonates in the world mainly include sulfite sulfonation and sulfoalkylation. Among them, the sulfite sulfonation method always involves a halogen-containing active group, which will produce some toxic, harmful and corrosive substances during its preparation, which will pollute the environment and corrode equipment. The sulfoalkylation method is under certain temperature, pressure and the presence of a catalyst, an alkyl alcohol ether or an alkylphenol...