Continuous process for highly overbased petroleum sulfonates usi

Details Continuous process for highly overbased petroleum sulfonates usi Continuous process for highly overbased petroleum sulfonates usi

1984-03-28

1985-09-17

Howard, Jacqueline V.

Compositions

Electrolytes for electrical devices

252 18, C10M 140

Patent

active

045419396

ABSTRACT:
A method and apparatus for the continuous overbasing of petroleum sulfonate in which there is a seriatim contacting at reaction conditions in a series of at least four stirred reaction zones of CO.sub.2 with a feedstock mixture in the first reaction zone containing (1) petroleum sulfonate, (2) 100 neutral lube oil, (3) Ca(OH).sub.2, (4) methanol, and (5) naphtha and a feedstock mixture in each successive reaction zone that is the effluent from the last previous reaction zone. Method and apparatus for the recovery of a dispersion of CaCO.sub.3 in a mixture of calcium petroleum sulfonate and 100 neutral lube oil stock as product from the last reaction zone effluent.

REFERENCES:
patent: 3105049 (1963-09-01), Voorhees
patent: 3318809 (1967-05-01), Bray
patent: 3523898 (1970-08-01), De Vault
patent: 3658703 (1972-04-01), Gragson et al.
patent: 4086170 (1978-04-01), De Clippelier et al.
patent: 4165291 (1979-08-01), Gragson

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