Compositions – Leather or fur treating
Patent
1983-09-19
1986-06-17
Guynn, Herbert B.
Compositions
Leather or fur treating
75 05A, 75 841R, 166307, 252309, 252312, E21B 4327
Patent
active
045955123
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).
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patent: 3254714 (1966-06-01), Gogarty et al.
patent: 3493048 (1970-02-01), Jones
patent: 3754599 (1973-08-01), Hummel et al.
patent: 3794117 (1974-02-01), Knox et al.
patent: 3831679 (1974-08-01), Presley et al.
patent: 4255270 (1981-03-01), Sitton et al.
Gautier Jean-Claude
Tellier Jacques
Guynn Herbert B.
Societe Nationale Elf Aquitaine
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