摘要:
A distillation-reaction apparatus comprises at least one distillation-reaction zone (G,H) having, on a perforated support (5) permitting the passage of fluids at least one element of type J--container (3b) of volume Vt containing a volume Va of solid catalytic particles--and at least one element of type K--(4) of type K1 and/or (3a) of type K2--the element of type K2 being a container not containing solid catalytic particles, the elements having adequate mechanical characteristics to withstand the loading of the elements in the zone and the perforations of the support being sufficiently small to retain the said elements. The apparatus can be used for performing chemical reactions and the fractionation of the reaction mixture, e.g., for the synthesis of ethers from olefins and alcohols.
摘要:
The invention concerns a catalytic composition resulting from placing at least one divalent nickel compound into contact with at least one hydrocarbylaluminum halide and at least one epoxy compound, in any order. It also concerns the use of the catalytic composition in a process of oligomerizing monoolefins.
摘要:
New nickel composition having substantial solubility in hydrocarbons and prepared by reacting at least one inorganic divalent compound, at least one halogenoacetic acid and at least one ester of the formula R.sub.1 COO R.sub.2 wherein R.sub.1 is hydrogen or hydrocarbyl and R.sub.2 is hydrocarbyl.The resultant composition can be used in admixture with a hydrocarbylaluminum halide as catalyst for olefin dimerization.
摘要翻译:通过使至少一种无机二价化合物,至少一种卤代乙酸和至少一种式R 1 COO R 2的酯,其中R 1是氢或烃基,且R 2是烃基,通过使至少一种无机二价化合物,至少一种式 所得组合物可与烃基卤化铝混合使用,用作烯烃二聚化的催化剂。
摘要:
Manufacture of catalysts containing at least four essential metals: copper, zinc, aluminum and at least one metal selected from the group formed of rare earths and zirconium.The process comprises the formation of a crystallized precipitate of the above-mentioned metals by intimate mixture of a crystallized precipitate of copper, zinc and aluminum, containing less than 0.06% by weight of sodium after washing, with a precipitate of at least one metal of the rare earths group and/or zirconium, containing less than 3% of nitrogen after washing.The catalysts are used in balanced reactions involving alcohols and synthesis gases, and particularly for methanol synthesis.