Abstract:
ZnxZryOz mixed oxide catalysts having improved stability for the conversion of ethanol to isobutene are described, together with methods for making such catalysts.
Abstract translation:描述了具有改进的将乙醇转化为异丁烯的稳定性的Zn x Zn y O z混合氧化物催化剂,以及制备这种催化剂的方法。
Abstract:
A process is described for making renewable isobutene and renewable isoprene, comprising converting a mixed acid feed including acetic acid and propionic acid to a product mixture including isobutene and at least one or both of 2-methyl-1-butene and 2-methyl-2-butene in the presence of a catalyst, separating isobutene from the product mixture and dehydrogenating either or both of the 2-methyl-1-butene and 2-methyl-2-butene in the remainder to provide isoprene.
Abstract:
Processes are described for improved utilization of the byproduct acetic acid universally produced in various oxidative processes for making acrylic acid and methacrylic acid, wherein at least a portion of the byproduct acetic acid is converted to isobutene and optionally to one or more further value-added products which may be prepared from isobutene.
Abstract:
Processes are described for making methacrylic acid via methacrolein from a biobased isobutene, wherein the biobased isobutene is prepared from ethanol or from acetic acid in the presence of a ZnxZryOz mixed oxide catalyst, the biobased isobutene is oxidized to methacrolein and the methacrolein is further oxidized to methacrylic acid.
Abstract:
Processes are described for making methacrylic acid via methacrolein from a biobased isobutene, wherein the biobased isobutene is prepared from ethanol or from acetic acid in the presence of a ZnxZryOz mixed oxide catalyst, the biobased isobutene is oxidized to methacrolein and the methacrolein is further oxidized to methacrylic acid.
Abstract translation:描述了通过甲基丙烯醛从生物基异丁烯制备甲基丙烯酸的方法,其中生物基异丁烯由乙酸或乙酸在Zn x Z y O z混合氧化物催化剂存在下制备,生物基异丁烯被氧化成甲基丙烯醛,甲基丙烯醛被进一步氧化成 甲基丙烯酸。
Abstract:
ZnxZryOz mixed oxide catalysts having improved stability for the conversion of ethanol to isobutene are described, together with methods for making such catalysts.
Abstract:
ZnxZryOz mixed oxide catalysts having improved stability for the conversion of ethanol to isobutene are described, together with methods for making such catalysts.
Abstract:
ZnxZryOz mixed oxide catalysts having improved stability for the conversion of ethanol to isobutene are described, together with methods for making such catalysts.
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 renewable para-xylene, comprising converting acetic acid to isobutene in the presence of a catalyst then converting the acetic acid-derived isobutene to a product composition including para-xylene. The catalyst can be a ZnxZryOz mixed oxide catalyst.
Abstract translation:描述了制备可再生对二甲苯的方法,包括在催化剂存在下将乙酸转化为异丁烯,然后将乙酸衍生的异丁烯转化成包括对二甲苯的产物组合物。 该催化剂可以是Zn x Zn x O z混合氧化物催化剂。