The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 17, 1985
Filed:
Mar. 28, 1984
Douglas S Jack, Bartlesville, OK (US);
Phillips Petroleum Company, Bartlesville, OK (US);
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.