C - Chemistry – Metallurgy – 07 – F
Patent
C - Chemistry, Metallurgy
07
F
C07F 9/165 (2006.01) C10M 137/10 (2006.01) C10M 159/20 (2006.01)
Patent
CA 2139270
This invention relates to a process for preparing an overbased metal salt of hydrocarbyl dithiophosphoric acid comprising neutralizing hydrocarbyl dithiophosphoric acid with an amount of metal oxide sufficient to form said over-based metal salt of hydrocarbyl dithiophosphoric acid, which metal oxide has a surface area of no less than 4 m 2 per gram up to 12 m 2 per gram.
L'invention porte sur une méthode pour préparer un sel métallique surbasique d'acide organique dithiophosphorique, consistant à neutraliser cet acide avec une quantité d'oxyde métallique suffisante pour former le sel métallique surbasique d'acide organique dithiophosphorique; l'oxyde métallique a une aire surfacique d'au moins 4 à 12 m2 par g.
Griffin Paul G.
Kadkhodayan Abbas
Pillsbury Dale G.
Ethyl Petroleum Additives Inc.
Macrae & Co.
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