Process for isolating paraffinsulfonates with a low alkali metal

Details Process for isolating paraffinsulfonates with a low alkali metal Process for isolating paraffinsulfonates with a low alkali metal

1987-11-16

1989-02-28

Siegel, Alan

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07C14302

Patent

active

048083437

ABSTRACT:
A process for isolating alkanesulfonates having a low alkali metal sulfate content and sulfuric acid from paraffin-sulfoxidation reaction mixtures with the aid of alcohols, the reaction mixture, freed from sulfur dioxide, being mixed in a sequence of five mixer/settler vessels with a C.sub.4 -C.sub.8 -alcohol and the amount of alkali metal hydroxide which is necessary for neutralization. The process is designed so that no alkali metal sulfate, but instead only sulfuric acid, is produced as a byproduct. Fewer alkali metal ions are thereby lost from the system, and the consumption of alkali metal hydroxide for neutralization is accordingly reduced.

REFERENCES:
patent: 4177208 (1979-12-01), Boy et al.
patent: 4178307 (1979-12-01), Boy et al.
patent: 4557873 (1985-12-01), Pistorius

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