Waste lubricating oil pretreatment process

Details Waste lubricating oil pretreatment process Waste lubricating oil pretreatment process

C - Chemistry, Metallurgy

10

M

C10M 175/02 (2006.01) C10M 175/00 (2006.01)

Patent

CA 2068905

A method of reducing the acidity, and fouling tendencies, of distillates when waste oil is distilled, which method comprises treating said oil while in a state when the oil has some water content, with one or more alkali metal salts of an acid that is weaker than sulphonic or with a hydroxide of an alkali metal salt.

Méthode pour réduire l'acidité et la tendance à l'encrassement des distillats lors de la distillation d'huile résiduelle; la méthode consiste à traiter l'huile lorsqu'elle renferme encore une certaine quantité d'eau, avec un ou plusieurs sels de métal alcalin d'un acide plus faible que l'acide sulfonique ou avec un hydroxyde d'un sel de métal alcalin.

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