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Применить Всего найдено 2. Отображено 2.
23-11-2011 дата публикации

Catalyst for preparing gamma-butyrolactone through maleic anhydride normal-pressure gas-phase hydrogenation

Номер: CN0102247853A
Автор: GUOSHU CHEN, YIXIN CHEN, XINZI CHEN, JIANGBING WANG, FENGQIANG GU, HAIBO LIANG, CHEN GUOSHU, CHEN YIXIN, CHEN XINZI, WANG JIANGBING, GU FENGQIANG, LIANG HAIBO
Принадлежит:

The invention relates to the field of catalyst containing metal, or metal oxide, or metal hydroxide, and specifically relates to a catalyst for preparing gamma-butyrolactone through maleic anhydride normal-pressure gas-phase hydrogenation. The catalyst is composed of 0 to 49 w% of CuO, 10 to 50 w% of ZnO, and 22 to 79 w% of Al2O3-TiO2-active carbon blend. The Al2O3-TiO2-active carbon blend is composed of 21 to 80 w% of Al2O3, 10 to 50 w% of TiO2 and 10 to 49 w% of active carbon. According to the invention, toxic component Cr element is not contained in the catalyst. Therefore, the catalyst belongs to green catalysts. The catalyst is used under a high maleic anhydride liquid hour space velocity, and has high maleic anhydride conversion rate, which is 100%, and high gamma-butyrolactone selectivity, which is above 98%. The activity of the catalyst can maintain stabile for a long time, which is more than 1800 hours. Therefore, the catalyst is a catalyst with a relatively high cost performance ...

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Номер записи: 1
21-09-2011 дата публикации

Catalyst for preparing gamma-butyrolactone by gas-phase hydrogenation of maleic-anhydride

Номер: CN0102188978A
Автор: YIXIN CHEN, GUOSHU CHEN, XINZI CHEN, JIANGBING WANG, FENGQIANG GU, HAIBO LIANG, CHEN YIXIN, CHEN GUOSHU, CHEN XINZI, WANG JIANGBING, GU FENGQIANG, LIANG HAIBO
Принадлежит:

The invention relates to the field of a catalyst containing metal or metal oxide or hydroxide, specifically to a catalyst for preparing gamma-butyrolactone by gas-phase hydrogenation of maleic-anhydride, comprising 11-50 w% of CuO, 12-49 w% of ZnO, 11-50 w% of TiO2 and 10-20 w% of an active carbon having a particle size of 100-200 meshes. The catalyst provided by the invention is composed of an active site Cu, an auxiliary agent ZnO, a carrier TiO2 and an active carbon, excluding the toxic ingredient Cr, and is a green catalyst with high activity and high selectivity. The conversion rate of maleic-anhydride is larger than 99%, the selectivity of gamma-butyrolactone is larger than 95%, the catalytic activity time is more than 2000 hours; the catalyst can be used at a high maleic-anhydride liquid hourly space velocity of 0.15h<-1> with the mole ratio of hydrogen to anhydride being 50:1; the catalyst, which contains no precious metal ingredients such as Pt and Pd and the like, is a high cost-performance ...

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Номер записи: 2