Simultaneous prepn. of fatty acid nitrile(s) and glycerol - by catalytically contacting glyceride(s), esp. natural fats and oils, with ammonia

    公开(公告)号:DE2813204A1

    公开(公告)日:1979-10-04

    申请号:DE2813204

    申请日:1978-03-25

    Applicant: HOECHST AG

    Abstract: Fatty acid nitriles of formula R1(R2,R3)-CN, (I), (where R1, R2 and R3 are 3-23 C aliphatic hydrocarbyl opt. substd. by an OH gp.) and glycerol, are prepd. by contacting mono-, di- and/or tri-glycerides of formula (II), in the liq. phase, with a gaseous NH3 stream, used in proportions >=200 l/kg.hr. of (II), opt. in the presence of an inert gas, at 220-300 degrees C, in the presence of Pb, Zn, Cd, Sn, Ti, Zr, Cr, Sb, Mn, Fe, Ni or Co carboxylates or sulphonates as catalysts. The prod. mixt. discharged is subjected to a phase-separation, into a fatty acid nitrile phase and a glycerol/water phase. (I) are intermediates for prim. amines and quat. ammonium cpds., which can be used as textile auxialiaries, flotation agents and cation-active surfactants. Glycerol is used in cosmetics and food industry, in prepn. of explosives, and as solvent, textile auxiliary and additive to heat- or power transfer fluids. Process allows quick direct conversion of natural fats or oils to (I) and glycerol. High yields are obtd., e.g. 93-96% of (I) and up to 95% glycerol. (I) contains 2 wt.% free fatty acids and 10 wt.% fatty acid amide by-prods.

    Fatty acid nitrile(s) and glycerol prodn. - by reacting mono, di, or tri:glyceride(s) with ammonia in liq. phase at elevated temp. in presence of catalyst

    公开(公告)号:DE2737607A1

    公开(公告)日:1979-03-01

    申请号:DE2737607

    申请日:1977-08-20

    Applicant: HOECHST AG

    Abstract: Fatty acid nitriles and glycerol are produced by reacting mono-, di- or triglycerides or their mixt., having the formula (I) (where R1, R2 and R3 are each satd. or unsatd. 3-23C hydrocarbon gps. opt. mono-substd. with OH) with ammonia in liquid phase in presence of a catalyst, at elevated temp. Process is improved by using as a catalyst a sulphonate (pref. an alkylarylsulphonate contg. 1-24C in the alkyl(s) and opt. up to two carboxyl gps.) or a carboxylate of Pb, Zn, Cd, Sn, Ti, Zr, Cr, Sb, Mn, Fe, Ni or Co. The temp. is pref. 220-240 degrees C until 30-70% of glycerol is removed; then the temp. is increased gradually or stepwise (over 0.5-5h) to 270-300 degrees C, and the reaction is completed at this temp. The reaction mixt. is then subjected to fractionation; the fatty acid amides are recycled, the fatty acid nitriles R1(R21R3)CN are sepd. from the aq. phase, from which glycerol is subsequently sepd. by the known methods. Method is esp. suitable for processing natural, vegetable or animal fats, but synthetic fats can also be used. The one-stage process is relatively inexpensive. High yields are obtd. (fatty acid nitriles =97% theor,; glycerol =95% theor). The process can be carried out continuously. The fatty acid nitriles can be converted into corresp. amines by hydrogenation.

    7.
    发明专利
    未知

    公开(公告)号:DE2656424A1

    公开(公告)日:1978-06-15

    申请号:DE2656424

    申请日:1976-12-13

    Applicant: HOECHST AG

    Abstract: Compounds of the formula wherein Rf is a perfluoroalkyl group of 3 to 16 carbon atoms, R1 and R2 is hydrogen, lower alkyl of 1 to 4 carbon atoms, cyclohexyl, 2-hydroxyalkyl, or Rf-(CF=CH)m-(CH2)p-, Q is -(CH2)x-, -CH2CHR-, or -CH2-CRR'-CH2- (R is lower alkyl or phenyl, R' is lower alkyl, phenyl or hydrogen), x is an integer of 2 or 3, m is an integer of 0 or 1 and p is an integer of 1 to 4, are prepared by reacting florinated amines of the formula R4-(CF=CH)m-(CH2)p-NR1R2 with cyclic phosphites of the formula these compounds are useful for lowering the surface tension in aqueous solutions and as wetting agents in dry-cleaning processes for textiles.

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