Process for preparing alkyl alcohol ether sulphonate or alkyl phenol ether sulphonate
A technology of alkylphenol ether sulfonate and hydroxyalkyl sulfonate, which is applied in the fields of sulfonate preparation, sulfonic acid preparation, organic chemistry, etc., and can solve problems such as affecting product composition, wasting raw materials, and difficult temperature control, etc. Achieve wide applicability, foam suppression, and easy control
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Embodiment 1
[0036] Embodiment 1: at first in a 500ml reactor with stirring, water trap is equipped with, add C 8 -C 10 Natural Fatty Alcohol Ether R-O-(EO) 30 H0.5mol, potassium hydroxide 0.5mol, cyclohexane 60ml, stirring and heating, azeotropic reflux dehydration for 2 hours, until clarified in the water separator, the water layer is no longer changed, so that it can fully generate C 8 -C 10 Potassium salt of natural fatty alcohol ethers. Secondly, the water separator is removed, and a distillation device is installed to fully distill the cyclohexane in the reactor. Then add 0.1mol potassium hydroxymethanesulfonate, 0.05mol catalyst potassium hydroxide, 100ml n-decane azeotropic reflux for 0.5 hours to obtain C 8 -C 10 Potassium Natural Fatty Alcohol Ether Sulfonate.
Embodiment 2
[0037] Embodiment 2: at first in a 500ml reactor with stirring, water trap is equipped with, add C 24 Alkylphenol ether R-O-(EO) 9 H0.3mol, metal sodium 0.3mol, octane 50ml, react with inert gas for 24 hours to make it fully generate C 24 Sodium salt of alkylphenol ether. Then add 0.5mol sodium isethionate, 0.3mol catalyst sodium hydroxide, and 130ml liquid paraffin into the reaction kettle, vacuumize and dehydrate at a temperature of 200-220°C, pass inert gas, and a vacuum degree of 0.001-0.006Mpa, React for 5 hours to get C 24 Sodium alkylphenol ether sulfonate, the yield is about 55%.
Embodiment 3
[0038] Embodiment 3: at first in a 500ml reactor with stirring, water trap is equipped with, add C 14 Alkyl alcohol ether R-O-(CH 2 CH 2 CH 2 CH 2 O) 18 H0.3mol, 0.3mol sodium hydride, 80ml toluene, stir and heat to 120°C, azeotropic reflux dehydration for 3.5 hours, until clarified in the water separator, the water layer is no longer changed, so that it can fully generate C 14 Sodium salt of alkanol ether. Secondly, the water separator is removed, and a distillation device is installed to evaporate the solvent in the reaction kettle. Then add 0.2mol sodium hydroxypropyl sulfonate, 0.1mol catalyst potassium hydroxide, 60ml dodecane, 18 20% product of alkanol ether mass, azeotropic reflux for 2 hours to obtain C 11 Sodium alkyl alcohol ether sulfonate, 62% yield.
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