B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 17/05 (2006.01) B01D 17/02 (2006.01) C07C 69/33 (2006.01)
Patent
CA 2195572
escription of a procedure for treating an aqueous medium polluted by hydrocarbon compounds called petroleum and of a demulsifying and dispersing mixture. The petroleum is placed in contact with a solution consisting of a mixture of polyglycerol esters in a proportion of at least 50 ppm, such that it prevents the formation of an oil emulsion or breaks an emulsion if one has already formed. The polyglycerol esters can be combined with a surfactant, preferably an anionic one like an alkyl sodium sulfosuccinate. The invention has applications for pollution control.
On décrit un procédé de traitement d'un milieu aqueux pollué par des composés hydrocarbonés appelés pétrole et une composition désémulsifiante et dispersante. On met en contact le pétrole avec une solution d'un mélange d'esters de polyglycérols dans une proportion pondérale d'au moins 50 ppm telle qu'on inhibe la formation d'uneémulsion eau dans pétrole ou telle qu'on casse en partie l'émulsion, si elle est déjà formée. Les esters de polyglycérols peuvent être combinés à un tensio-actif de préférence anionique comme un alkylsulfosuccinate de sodium. Application à la lutte anti-pollution.
Dalmazzone Christine
Hillion Gerard
Institut Francais Du Petrole
Robic
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