Abstract:
Processes are described for making biobased isoprene, wherein a biobased isobutene prepared from acetic acid in the presence of a catalyst is combined with a formaldehyde source to form a reaction mixture, and the reaction mixture is reacted to yield biobased isoprene. In certain embodiments, methyl-tert-butyl ether prepared by reacting the same biobased isobutene with methanol serves as a formaldehyde source, being oxidatively cracked to produce formaldehyde as well as isobutene for being converted to the biobased isoprene.
Abstract:
A process is disclosed for converting acetic acid to propylene and isobutene as the principal hydrocarbon products made, in the presence of a catalyst and in the further presence of hydrogen. In certain embodiments, a ZnxZryOz mixed oxide catalyst is used for carrying out a gas phase process, and propylene is produced preferentially to isobutene by using at least a certain amount of hydrogen in the process. In some embodiments, a ZnxZryOz mixed oxide catalyst made by an incipient wetness impregnation method is used and is indicated to be very stable for carrying out the conversion.
Abstract translation:公开了一种将乙酸转化为丙烯和异丁烯作为主要烃产物的方法,在催化剂存在下和在氢的存在下制备。 在某些实施方案中,使用Zn x Zn y O z混合氧化物催化剂进行气相方法,并且通过在该方法中使用至少一定量的氢气优先产生丙烯。 在一些实施方案中,使用通过初始润湿浸渍法制备的Zn x ZrO x z混合氧化物催化剂,并且表明对于进行转化是非常稳定的。
Abstract:
A process is described for making a product mixture including isobutene, propylene, 1-butene, 2-butene, 2-methyl-1-butene and 2-methyl-2-butene from a mixture of acetic acid and propionic and through reaction in the presence of a source of hydrogen and of a mixed oxide catalyst, for example, a ZnxZryOz mixed oxide catalyst. A variety of commercially valuable products may be made in turn from the various C3, C4 and C5 constituents of the product mixture.
Abstract translation:描述了从乙酸和丙酸的混合物中制备包括异丁烯,丙烯,1-丁烯,2-丁烯,2-甲基-1-丁烯和2-甲基-2-丁烯的产物混合物的方法,并通过在 存在氢源和混合氧化物催化剂,例如Zn x ZrO 2混合氧化物催化剂。 可以从产品混合物的各种C3,C4和C5组分依次制备各种商业上有价值的产品。
Abstract:
A process is described for making a product mixture including isobutene, propylene, 1-butene, 2-butene 2-methyl-1-butene and 2-methyl-2-butene from a mixture of acetic acid and propionic and through reaction in the presence of a source of hydrogen and of a mixed oxide catalyst, for example, a ZnxZryOz mixed oxide catalyst. A variety of commercially valuable products may be made in turn from the various C3, C4 and C3 constituents of the product mixture
Abstract translation:描述了从乙酸和丙酸的混合物中制备包括异丁烯,丙烯,1-丁烯,2-丁烯-2-甲基-1-丁烯和2-甲基-2-丁烯的产物混合物的方法,并通过在存在下的反应 的氢源和混合氧化物催化剂,例如Zn x Zr y O z混合氧化物催化剂。 可以从产品混合物的各种C3,C4和C3组分依次制备各种商业上有价值的产品