Process for recovery of ethylene oligomers
    1.
    发明授权
    Process for recovery of ethylene oligomers 失效
    回收乙烯低聚物的方法

    公开(公告)号:US4229607A

    公开(公告)日:1980-10-21

    申请号:US50904

    申请日:1979-06-21

    CPC classification number: C07C11/02 C07C2/36 C07C7/14866 Y02P20/52

    Abstract: An improvement as described for the recovery of ethylene oligomers from the reaction product obtained when ethylene is oligomerized by contact in the liquid phase at elevated temperatures and pressures with a nickel complexed catalyst dissolved in an aliphatic diol solvent. In this improved process, the liquid oligomer product phase, after separation from gaseous and dissolved ethylene and liquid diol solvent, is subject to an aqueous acid wash followed optionally and preferably by a water wash to hydrolyze and extract diol solvent degradation products which carry through from the oligomerization reaction zone.

    Abstract translation: 通过溶解在脂肪族二醇溶剂中的镍络合催化剂在高温和高压下,通过液相接触使乙烯低聚而获得的反应产物中回收乙烯低聚物的改进。 在该改进的方法中,液体低聚物产物相在从气态和溶解的乙烯和液体二醇溶剂中分离后,经过含水酸洗涤,随后任选地并优选通过水洗以水解和提取二醇溶剂降解产物,其从 低聚反应区。

    Nickel complexes in diol solvents and their use as oligomerization
catalyst precursors
    2.
    发明授权
    Nickel complexes in diol solvents and their use as oligomerization catalyst precursors 失效
    二醇溶剂中的镍络合物及其作为低聚催化剂前体的用途

    公开(公告)号:US4377499A

    公开(公告)日:1983-03-22

    申请号:US207177

    申请日:1980-11-17

    Abstract: Ethylene is oligomerized to even numbered alpha-monoolefins principally in the C.sub.4 to C.sub.40 range with minimal concomittant production of high molecular weight polyethylene by reacting ethylene in a diol solvent in an oligomerization reaction zone at elevated pressure with a nickel complex catalyst composition produced by combining in the reaction zone, (a) a stable preformed complex of nickel, ethylene and hydride in a diol solvent, said complex being prepared by contactng in a diol solvent and in the presence of ethylene, a nickel salt, a base and a boron hydride transfer agent and (b) a suitable bidentate ligand; the stable nickel complex solution and the bidentate ligand being added in separate portions to the reaction zone. These stable complexes of nickel, ethylene and hydride in diol solution are considered to be novel oligomerization catalyst precursor compositions.

    Abstract translation: 乙烯在C4至C40范围内低聚至偶数的α-单烯烃,最低限度的同时生产高分子量聚乙烯,通过乙烯在二醇溶剂中在低聚反应区中在升高的压力下与镍络合催化剂组合物 反应区,(a)镍,乙烯和氢化物在二醇溶剂中的稳定的预制配合物,所述络合物通过在二醇溶剂中接触并在乙烯,镍盐,碱和硼氢化物转移 试剂和(b)合适的二齿配体; 稳定的镍络合物溶液和二齿配体分别加入反应区。 镍,乙烯和氢化物在二醇溶液中的稳定配合物被认为是新的低聚催化剂前体组合物。

    Nickel complexes in diol solvents and their use as oligomerization
catalyst precursors
    3.
    发明授权
    Nickel complexes in diol solvents and their use as oligomerization catalyst precursors 失效
    二醇溶剂中的镍络合物及其作为低聚催化剂前体的用途

    公开(公告)号:US4260844A

    公开(公告)日:1981-04-07

    申请号:US116687

    申请日:1980-01-30

    Abstract: Ethylene is oligomerized to even numbered alpha-monoolefins principally in the C.sub.4 to C.sub.40 range with minimal concomittant production of high molecular weight polyethylene by reacting ethylene in a diol solvent in an oligomerization reaction zone at elevated pressure with a nickel complex catalyst composition produced by combining in the reaction zone, (a) a stable preformed complex of nickel, ethylene and hydride in a diol solvent, said complex being prepared by contacting in a diol solvent and in the presence of ethylene, a nickel salt, a base and a boron hydride transfer agent and (b) a suitable bidentate ligand; the stable nickel complex solution and the bidentate ligand being added in separate portions to the reaction zone. These stable complexes of nickel, ethylene and hydride in diol solution are considered to be novel oligomerization catalyst precursor compositions.

    Abstract translation: 乙烯在C4至C40范围内低聚至偶数的α-单烯烃,最低限度的同时生产高分子量聚乙烯,通过乙烯在二醇溶剂中在低聚反应区中在升高的压力下与镍络合催化剂组合物 反应区,(a)镍,乙烯和氢化物在二醇溶剂中的稳定的预制配合物,所述络合物通过在二醇溶剂中和在乙烯,镍盐,碱和硼氢化物转移剂的存在下接触来制备 试剂和(b)合适的二齿配体; 稳定的镍络合物溶液和二齿配体分别加入反应区。 镍,乙烯和氢化物在二醇溶液中的稳定配合物被认为是新的低聚催化剂前体组合物。

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