Guerbet hexadecyl trimethyl ammonium chloride cationic surfactant and preparation method thereof
A technology of cetyltrimethylammonium chloride and cetyldimethyl tertiary amine, which is applied in the field of preparation of cationic surfactants, can solve the problems of low solubility and poor ability to reduce the surface tension of aqueous solutions, etc. Achieve good surface activity and high reduction effect
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Embodiment 1
[0039] 110g of n-octanol, 0.11g of CaCO 3As a carrier, the CuO-NiO loading capacity is 30%, the CuO-NiO catalyst with a molar ratio of CuO to NiO of 1:2 and 2.2g KOH are put into the reactor, and N is continuously introduced into the reaction system. 2 In order to reduce the generation of by-products, heat under stirring conditions, the temperature rises to 190 ° C and start to reflux, react at a temperature of 210 ° C for 1 h, separate the moisture generated in the reaction process, and obtain Gulbert cetyl alcohol (2 -hexyldecanol). The reaction product was filtered and purified by vacuum distillation.
[0040] The purified Gulbert cetyl alcohol 150g, with CaCO 3 As the carrier, the molar ratio of the components is: copper oxide: zinc oxide: magnesium oxide: nickel oxide: 1.5g of Cu / Ni composite catalyst of carrier = 1:0:0:0.1:1 is put into the reactor, heated under stirring , at 170°C, continuously feed H at a flow rate of 0.4L / min 2 After reducing for 20 minutes, conti...
Embodiment 2
[0044] 110g of n-octanol, 0.33g of CaCO 3 As a carrier, the CuO-NiO loading capacity is 30%, the CuO-NiO catalyst with a molar ratio of CuO to NiO of 1:2 and 3.3g KOH are put into the reactor, and the reaction system is continuously fed with N 2 In order to reduce the formation of by-products, heat under stirring conditions, the temperature rises to 192 ° C to start reflux, react at a temperature of 240 ° C for 4 h, separate the moisture generated in the reaction process, and obtain Gulbert cetyl alcohol (2 -hexyldecanol). The reaction product was filtered and purified by vacuum distillation.
[0045] The purified Gulbert cetyl alcohol 150g, with CaCO 3 As the carrier, the molar ratio of the components is: copper oxide: zinc oxide: magnesium oxide: nickel oxide: 4.5g of Cu / Ni composite catalyst of carrier = 1:0:0:0.1:1 is put into the reactor, heated under stirring , at 180°C, continuously feed H at a flow rate of 0.5 L / min 2 After reducing for 50 minutes, continue to feed...
Embodiment 3
[0049] 110g of n-octanol, 0.22g of CaCO 3 As a carrier, the CuO-NiO loading capacity is 30%, the CuO-NiO catalyst with a molar ratio of CuO to NiO of 1:2 and 3.3g KOH are put into the reactor, and the reaction system is continuously fed with N 2 In order to reduce the formation of by-products, heat under stirring conditions, the temperature rises to 192 ° C to start reflux, react at a temperature of 230 ° C for 2 h, separate the moisture generated in the reaction process, and obtain Gulbert cetyl alcohol (2 -hexyldecanol). The reaction product was filtered and purified by vacuum distillation.
[0050] The purified Gulbert cetyl alcohol 150g, with CaCO 3 Be carrier, the molar ratio of component is: copper oxide: zinc oxide: magnesium oxide: nickel oxide: the Cu / Ni composite catalyst 3g of carrier=1:0:0:0.1:1 drops in the reactor, heats under stirring, At 175°C, continuously feed H at a flow rate of 0.5L / min 2 After reducing for 40 minutes, continue to feed dimethylamine gas...
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