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    Clay grease manufacturing process
    657.
    发明授权
    Clay grease manufacturing process 失效
    粘土油脂制造工艺

    公开(公告)号：US3006848A

    公开(公告)日：1961-10-31

    申请号：US965560

    申请日：1960-02-18

    Applicant: SHELL OIL CO

    Inventor： CARUSO GERARD P

    IPC: C09C3/08 ,  C10M169/00

    CPC classification number: C10M1/08 ,  C10M2201/02 ,  C10M2201/083 ,  C10M2201/085 ,  C10M2201/103 ,  C10M2201/14 ,  C10M2203/10 ,  C10M2207/123 ,  C10M2207/129 ,  C10M2207/22 ,  C10M2207/282 ,  C10M2207/34 ,  C10M2209/00 ,  C10M2209/02 ,  C10M2209/10 ,  C10M2209/103 ,  C10M2215/04 ,  C10M2215/042 ,  C10M2215/044 ,  C10M2215/064 ,  C10M2215/065 ,  C10M2215/08 ,  C10M2215/082 ,  C10M2215/22 ,  C10M2215/221 ,  C10M2215/224 ,  C10M2215/225 ,  C10M2215/226 ,  C10M2215/26 ,  C10M2215/28 ,  C10M2215/30 ,  C10M2217/046 ,  C10M2217/06 ,  C10M2223/04 ,  C10M2223/042 ,  C10M2229/02 ,  C10M2229/05 ,  C10N2230/12 ,  C10N2250/10 ,  C10N2270/00

    Abstract: A process for the preparation of clay gelled lubricating greases comprises adding to a preformed clay gelled grease which has incorporated in it a cationic surface-active agent and has not more than 5% by weight of water, 0.25 to 1% by weight based on the grease of oil-soluble amino amides formed by reaction of 0.3 to 0.6 equivalents of a mixture of saturated fatty acids having different carbon atom contents chosen from saturated fatty acids having 10 to 14 carbon atoms per molecule with one equivalent of a mixture of polyethylene polyamines (as defined), 20 to 80% by weight of this latter mixture comprising either or both polyethylene polyamines having 2 or 3 nitrogen atoms, the remainder thereof being polyethylene polyamines having an average molecular weight within the range of 200 to 500. Part of the fatty acids may be replaced by acids having from 14 to 22 carbon atoms per molecule, which may be unsaturated. Examples of these latter acids are linoleic, oleic or linolenic acid. Polyethylene polyamines are defined as including ethylene diamine and the mixture of polyethylene polyamines is preferably that obtained as a bottom product in the process for the preparation of ethylene diamine, by reacting ethylene dichloride with ammonia. The grease is preferably prepared by dispersing clay in water, adding to the dispersion a cationic surface-active agent and the lubricating oil, and dehydrating the mixture. The preferred type of surface-active agent comprises the same amino amides as are added to the greases according to the invention, but other amino amides may be used. The base oil may be a mineral oil, a silicone, a diester, a polyether, or a phosphate. The composition may also include corrosion inhibiters such as sodium nitrite, dicyclohexyl ammonium nitrite, diisopropylammonium nitrite and mixtures thereof; sebacic, adipic, azelaic, pimelic or suberic acids; and oxidation inhibitors such as diphenylamine, di-(a -naphthyl)amine, di - (b - naphthyl)amine, phenyl - a - naphthylamine, phenyl - b - naphthylamine, bis(ethylphenyl)amine, bis(tert-butylphenyl)amine, a -naphthyl)(b -naphthyl)amine, bis(dimethylphenyl)amine, bis(diethylphenyl)amine or phenyl-beta(butylnaphthyl)amine. A small amount of phosphoric acid may also be included during the mixing process. Specification 874,336 is referred to.

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