Process for isolating paraffinsulfonate from the reaction mixtur

Details Process for isolating paraffinsulfonate from the reaction mixtur Process for isolating paraffinsulfonate from the reaction mixtur

1984-02-03

1985-05-21

Siegel, Alan

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260513R, 204162SA, 204162HE, C07C13900

Patent

active

045185379

ABSTRACT:
Process for isolating paraffinsulfonate from the extracts obtained on sulfoxidating n-paraffins by first of all separating off the bulk of the paraffin by adding alcohol at about 5.degree.-55.degree. C., then adding an amount of alkali required for neutralization in such a way that pH 7 is not undershot, separating off the precipitated alkali metal sulfate, distilling the alcohol out of the remaining paraffinsulfonate solutions, and concentrating the aqueous solution of the paraffinsulfonate by continuously introducing it into an evaporator in which the temperature should never drop below 130.degree. C. from when the paraffinsulfonate solution is started to be introduced throughout the entire period for the evaporation of water.

REFERENCES:
patent: 3577456 (1971-05-01), Kleiner
patent: 3743673 (1973-07-01), Downer

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