LOW AROMATICITY POLYOLEFINS

• Main Authors: BERG BRIAN R, SHANNON, PORTER, C, KUO CHI-I, BROUSSARD, CHRISTIAN, M
• Format: Patent
• Language: Chinese; English
• Published: 22.07.2022
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; COMPOSITIONS BASED THEREON; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR PREPARATION OR CHEMICAL WORKING-UP; THEIR RELEVANT APPARATUS; TRANSPORTING

The present disclosure relates to a process for producing a catalyst composition. A method may include mixing a catalyst compound having a transition metal atom, an activator, and a support to form a supported catalyst mixture. The method may also include drying the supported catalyst mixture at a pressure of about 10 kPa or less and at a temperature of about 60 DEG C or more for a time of about 6 h or less. The present disclosure also relates to a process for producing a polyolefin. The method can include introducing a catalyst composition and at least one olefin into a polymerization reactor, wherein the catalyst composition has an aromatic hydrocarbon content of from about 0.5 wt% to about 1.5 wt% and an aliphatic hydrocarbon content of less than 1 wt%. The method may also include obtaining a polyolefin having about 300 ppb or less aromatic hydrocarbons. 本公开涉及用于生产催化剂组合物的方法。方法可以包括混合具有过渡金属原子的催化剂化合物、活化剂和载体以形成负载的催化剂混合物。方法还可以包括在约10kPa或更低的压力和在约60℃或更高的温度下干燥所述负载的催化剂混合物约6h或更短的时间。本公开还涉及用于生产聚烯烃的方法。方法可以包括将催化剂组合物和至少一种烯