Phillips Petroleum Company

Douglas S Jack

J Ronald Spence

James W Garner

Homer J Sarrett, Jr, Deceased

Apparatus is provided for overbasing a petroleum sulfonate in a multi-vessel reaction system in which a first reactor is a plug flow reactor in which a feedstock is fed in the top of the first reactor with carbon dioxide fed near the bottom of the first reactor and with the product of the first reactor passed to a second reactor that is a continuous stirred tank reactor for additional reaction with carbon dioxide. Optionally, the continuous stirred tank reactor is the first in a series of continuous stirred tank reactors with passing a product effluent seriatim through the series of reactors and recovery of product from the last reactor in the series.

Apparatus for producing and recovering overbased petroleum sulfonate

A method and apparatus for the continuous overbasing of petroleum sulfonate providing in a process in which CO.sub.2 is contacted with a reaction mixture of neutral petroleum sulfonate, lube oil stock, lime, methanol, and naphtha in a series of reaction vessels in which additional CO.sub.2 is contacted seriatim in each succeeding reaction vessel with the effluent from the preceding reaction vessel, a method and apparatus for the removal of at least a portion of the effluent from each reaction vessel with the reduction of water content in this portion and subsequent supplementing of methanol content in this portion to provide a reaction efficient amount of water and methanol in each succeeding reaction.

Apparatus for continuous overbasing of petroleum sulfonate with water

A method and apparatus for the continuous overbasing of petroleum sulfonate in which a pipe reactor having a multiplicity of feed points along the reactor is used to contact a reaction mixture of neutral petroleum sulfonate, 100 neutral lube oil stock, lime, methanol, and naphtha with a counterflow of carbon dioxide.

Continuous process for overbasing petroleum sulfonate in a pipe reactor

Method and apparatus are provided for overbasing a petroleum sulfonate in a multi-vessel reaction system in which the first reactor is a plug flow reactor in which a feedstock of lime, lube oil, petroleum sulfonate, naphtha, and methanol is fed into the top of a vertical reactor with carbon dioxide in an amount of about 5 to about 10 percent by volume of the total CO.sub.2 used in the process is fed near the bottom of the reactor above the reaction product outlet which is then passed to at least one continuous stirred tank reactor for additional reaction with carbon dioxide in an amount in a range of about 95 to about 90 percent by volume of the total CO.sub.2 used in the process.

Precarbonation in overbasing calcium petroleum sulfonates

Continuous overbasing of petroleum sulfonate with water removal and

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.

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Bartlesville, OK, United States of America

Douglas S Jack