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:
Jun. 17, 1986
Filed:
Sep. 19, 1983
Jacques Tellier, Lons, FR;
Jean-Claude Gautier, Billere, FR;
Abstract
The present invention relates to a process for preparing microemulsions between an acid phase and a hydrophobic phase in which a cationic surfactant and a cosurfactant are added to the reaction medium. This process makes it possible to obtain either a microemulsion of acid-in-oil type in equilibrium with an acid phase, or a microemulsion of oil-in-acid type in equilibrium with an organic phase, or a microemulsion in simultaneous equilibrium with the organic and acid phases. The process is applicable to numerous domains: controlled acidification, stimulatiion of oil-producing well formations, fracturing, liquid-liquid extraction of metal cations in hydrometallurgy, chemical reactions (sulfonation, sulfatation, protonic catalysis).