摘要:
An improved process for decomposing alkyl or aromatic hydroperoxides to form a decomposition reaction mixture containing the corresponding alcohol and ketone. The improvement relates to decomposing the hydroperoxide by contacting the hydroperoxide with a catalytic amount of a heterogenous catalyst of Au, Ag, Cu or a sol-gel compound containing particular combinations of Fe, Ni, Cr, Co, Zr, Ta, Si, Mg, Nb, Al and Ti wherein certain of those metals have been combined with an oxide, such as an inorganic matrix of hydroxides or oxides, or combinations thereof. The catalysts may also optionally be supported on a suitable support member and used in the presence of an additional metal.
摘要:
A catalytic process is disclosed for oxidizing cycloalkanes directly to form, in a single step, a mixture containing the corresponding alcohol and ketone. In particular, the invention relates to oxidizing a cycloalkane by contacting it with a source of oxygen and a catalytic amount of a heterogeneous catalyst. The catalysts of the invention include gold (including gold sol-gel compounds) and sol-gel compounds containing particular combinations of Cr, Co, Zr, Ta, Si, Mg, Nb, Al and Ti, wherein certain of those metals have been combined with an oxide, such as an inorganic matrix of hydroxides or oxides, or combinations thereof. The catalysts may also optionally be supported on a suitable support member.
摘要:
An improved process for decomposing alkyl or aromatic hydroperoxides to form a decomposition reaction mixture containing the corresponding alcohol and ketone. The improvement relates to decomposing the hydroperoxide by contacting the hydroperoxide with a catalytic amount of a heterogeneous catalyst of Nb or Hf hydroxide or oxide. The improvement also relates to decomposing a secondary hydroperoxide by contacting the secondary hydroperoxide with a catalytic amount of a heterogeneous catalyst of Zr or Ti hydroxide or oxide. The catalysts may optionally be supported on SiO2, Al2O3, carbon or TiO2.
摘要翻译:用于分解烷基或芳族氢过氧化物以形成含有相应的醇和酮的分解反应混合物的改进方法。 该改进涉及通过使氢过氧化物与催化量的Nb或Hf氢氧化物或氧化物的非均相催化剂接触来分解氢过氧化物。 该改进还涉及通过使二次氢过氧化物与催化量的Zr或Ti氢氧化物或氧化物的非均相催化剂接触来分解次级氢过氧化物。 催化剂可以任选地负载在SiO 2,Al 2 O 3,碳或TiO 2上。
摘要:
A supported gold catalyst is used for selective oxidation. In particular, an alcohol or ketone is oxidized to produce the corresponding carboxylic acid, an alcohol is oxidized to produce the corresponding ketone, and xylene is oxidized to produce the corresponding mono-alcohol or di-alcohol.
摘要:
An improved catalytic process for decomposing alkyl or aromatic hydroperoxides is disclosed which utilizes a caalytic amount of a heterogeneous Au catalyst that has been treated with an organosilicon reagent.
摘要:
A catalyzed vapor phase process for the hydrocyanation of acyclic diolefinic compounds to olefinic nitriles is described in which the olefinic double bond is not conjugated to the triple bond of the cyano group, wherein a catalyst composition comprising supported copper salts is used.
摘要:
Carbon monoxide and carbonyl sulfide emissions are reduced in manufacturing processes, including titanium tetrachloride production processes. Gas is contacted with CO, COS, and an oxygen-containing gas with a suitable catalyst. The catalyst may be a metal oxide catalyst containing bismuth, cobalt and nickel, a xerogel or aerogel catalyst containing Au, Rh, Ru and Co in aluminum oxide/oxyhydroxide matrices, or a supported metal catalyst that contains at least one metal from the group Pd, Rh, Ru and Cu. In the latter case, the catalyst support is contains alumina or carbon. A catalyst composite of Au, Rh, Ru and Cr, and cerium oxide and lanthanum oxide may also be used.
摘要:
This invention relates to chrysene compounds that are useful in electroluminescent applications. It also relates to electronic devices in which the active layer includes such a chrysene compound.