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发明公开
CN102432707A 聚烯烃催化剂预聚合溶剂或催化剂配制溶剂 无效 - 撤回

聚烯烃催化剂预聚合溶剂或催化剂配制溶剂
摘要：
本发明涉及聚烯烃催化剂预聚合溶剂或催化剂配制溶剂，适用于石油化工行业聚烯烃生产工艺及其催化剂配制工艺，它公开了C4～C5的直链烷烃及其异构体，以丁烷、异丁烷、异戊烷、正戊烷、环戊烷为主要成分，通过限定C4～C5的直链烷烃及其异构体的浓度，制备而成的一种新型混合轻质烷烃类催化剂预聚合溶剂或催化剂配制溶剂。溶剂配制时必须同时满足以下两个条件：丁烷及其同分异构体质量浓度不超过40%；戊烷及其同分异构体质量浓度不低于50%。本发明的溶剂粘度低、易挥发、化学性质稳定，用于代替在聚烯烃行业中催化剂预聚合过程传统的高沸点或高粘度的聚烯烃预聚合溶剂和催化剂配制溶剂。
摘要（英）：

The invention relates to a polyolefin catalyst prepolymerization solvent or a catalyst preparation solvent, which are applicable to a process for producing polyolefin and a process for preparing a catalyst of the polyolefin in the petrochemical industry. The invention discloses a novel mixed light alkane catalyst prepolymerization solvent or a catalyst preparation solvent which is prepared by utilizing C4-C5 straight-chain paraffin and an isomer thereof, taking butane, iso-butane, iso-pentane, n-pentane and cyclopentane as main ingredients, and limiting the concentration of the C4-C5 straight-chain paraffin and the isomer thereof. The two following conditions are needed to be met simultaneously when the solvent is prepared: the mass concentration of the butane and an isomeride of the butane is not more than 40 percent; and the mass concentration of pentane and an isomeride of the pentane is not less than 50 percent. The solvent has low viscosity and stable chemical properties, is easy to volatilize, and is used for substituting the traditional high-boiling-point or high-viscosity polyolefin prepolymerization solvent and catalyst preparation solvent in the prepolymerization process of catalysts in the polyolefin industry.

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