Abstract:
A novel catalyst useful in the ethynylation of formaldehyde to butynediol is formed by precipitating copper and bismuth from a salt solution of such metals, utilizing an alkali metal hydroxide as the precipitating agent to deposit copper and bismuth hydroxide as a coating around a siliceous carrier particle.
Abstract:
Se forma un catalizador novedoso útil para la etinilación de formaldehído a butinediol mediante la precipitación de cobre y bismuto a partir de una solución de sal de dichos metales, utilizando un hidróxido de metal alcalino como agente de precipitación para depositar hidróxido de bismuto y cobre como un recubrimiento alrededor de una partícula de portador silíceo.
Abstract:
The hydroisomerization of a paraffinic hydrocarbon feedstock obtained from renewable sources is effectively achieved by passing the feedstock in the presence of hydrogen over a hydroisomerization catalyst comprising a crystalline metal silicate molecular sieve, in which a portion of the crystalline framework contains iron.
Abstract:
A novel catalyst useful in the ethynylation of formaldehyde to butynediol is formed by precipitating copper and bismuth from a salt solution of such metals, utilizing an alkali metal hydroxide as the precipitating agent to deposit copper and bismuth hydroxide as a coating around a siliceous carrier particle.
Abstract:
The hydroisomerization of a paraffinic hydrocarbon feedstock obtained from renewable sources is effectively achieved by passing the feedstock in the presence of hydrogen over a hydroisomerization catalyst comprising a crystalline metal silicate molecular sieve, in which a portion of the crystalline framework contains iron.
Abstract:
catalisadores de hidrogenação, métodos de preparação de um catalisador de hidrogenação calcinado, de hidrogenação de uma cetona ou aldeído, de síntese de butanodiol e de hidrogenação de um éster e catalisador do método. trata-se de um catalisador de hidrogenação que inclui óxido de cobre, um metal alcalino e uma sílica estabilizada com ácido, em que o catalisador de hidrogenação tem uma área de superfície brunauer-emmett-teller (bet) superior ou igual a cerca de 15 m2/g. os catalisadores de hidrogenação são eficazes para converter aldeídos, cetonas e ésteres em álcoois e/ou diésteres em dióis.
Abstract:
Un catalizador de hidrógeno incluye óxido de cobre, un metal alcalino y una sílice estabilizada con ácido, en donde el catalizador de hidrogenación tiene un área superficial de Brunauer-Emmett-Teller (BET) mayor o igual a alrededor de 15 m²/g. Los catalizadores de hidrogenación son efectivos para convertir aldehídos, cetonas y ésteres en alcoholes y/o diésteres en dioles.
Abstract:
The hydroisomerization of a paraffinic hydrocarbon feedstock obtained from renewable sources is effectively achieved by passing the feedstock in the presence of hydrogen over a hydroisomerization catalyst comprising a crystalline metal silicate molecular sieve, in which a portion of the crystalline framework contains iron.