摘要:
New nickel composition having substantial solubility in hydrocarbons and prepared by reacting at least one inorganic divalent nickel 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镍化合物,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镍化合物,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:
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:
Process for the conversion of ethylene into light alpha olefins, mainly 1-butene, 1-hexene and 1-octene, in which the ethylene is contacted with a catalyst obtained by reacting a performed mixture of alkyl zirconate and ether with a chlorine or bromine-containing aluminum compound.
摘要:
A process for carrying out a reaction on an organic feed, for example dimerization, co-dimerization, oligomerization or metathesis of olefins, as described in which the catalyst is a catalytic metal compound dissolved in a non-aqueous ionic medium which is not or is only slightly miscible with hydrocarbons. The reaction is carried out in a system comprising at least two treatment loops each comprising at least one reaction zone and at least one zone for separating the organic and polar phases between which the polar medium containing the catalytic metal compound, and the organic phase circulate. Fresh polar phase is injected into the second loop and used polar phase is eliminated from the first loop. The hydrocarbon to be transformed is injected into the first loop and the products are withdrawn from the second loop. The invention also concerns a unit for carrying out the process.
摘要:
A process for oligomerising olefins in an organic feed containing at least one olefin comprises two steps with different types of catalysis. The cut to be treated containing at least one olefin (Cn) is introduced via line 1 into a reaction zone R1 where in a first step it undergoes catalytic oligomerisation, either of a liquid phase homogeneous type, or heterogeneous with a solid support. The effluent produced is sent via line 2 to a heat exchanger E1 traversed by a cold liquid. The effluent is thus cooled before being sent via line 3 to a second reaction zone R2 where it undergoes catalytic oligomerisation in a liquid-liquid two-phase medium. After reaction, the effluent is fed via line 4 to a zone L1 where it is washed. After washing, the hydrocarbon fraction is sent via line 5 to separator S1. The fraction containing the unreacted olefins (Cn) is separated from the oligomer product fraction produced, this fraction Cn is evacuated from the apparatus via line 6, and the fraction containing the oligomer products is evacuated via line 7.
摘要:
A process for carrying out a reaction on an organic feed, for example dimerization, co-dimerization, oligomerization or metathesis of olefins, as described in which the catalyst is a catalytic metal compound dissolved in a non-aqueous ionic medium which is not or is only slightly miscible with hydrocarbons. The reaction is carried out in a system comprising at least two treatment loops each comprising at least one reaction zone and at least one zone for separating the organic and polar phases between which the polar medium containing the catalytic metal compound, and the organic phase circulate. Fresh polar phase is injected into the second loop and used polar phase is eliminated from the first loop. The hydrocarbon to be transformed is injected into the first loop and the products are withdrawn from the second loop. The invention also concerns a unit for carrying out the process.
摘要:
An improved catalytic composition for oligomerization, in particular dimerization, of monoolefins comprises the product resulting from bringing the following three constituents into contact in any order: a) at least one divalent nickel compound; b) at least one hydrocarbylaluminium dihalide, optionally enriched with an aluminium trihalide; and c) at least one organic Bronsted acid; the catalytic composition being pre-conditioned in a solvent before using it for oligomerization.
摘要:
A process is described for carrying out olefin oligomerisation in two catalysis steps of different types, using an organic feed containing at least one olefin. The cut to be treated, containing at least one olefin (Cn), is introduced into a first reaction zone where, in a first step, it undergoes catalytic oligomerisation either of the homogeneous liquid phase type, or of the heterogeneous type with a solid support. The effluent produced is generally sent to a heat exchanger traversed by a cold liquid, the effluent thus being cooled before being sent to a second reaction zone where it undergoes catalytic oligomerisation in a liquid—liquid two-phase medium, the invention being characterized in that at least an ethylenic hydrocarbon containing 3 to 5 carbon atoms per molecule is added to the inlet to the second reaction zone.
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:
An improved catalytic composition for oligomerization, in particular dimerization, of monoolefins comprises the product resulting from bringing the following three constituents into contact in any order: a) at least one divalent nickel compound; b) at least one hydrocarbylaluminium dihalide, optionally enriched with an aluminum trihalide; and c) at least one organic Bronsted acid; the catalytic composition being pre-conditioned in a solvent before using it for oligomerization.