US 2019/0169324 A1 · MAGNESIUM ALKOXIDE CATALYST SUPPORT AND THE PREPARATION METHOD AND USE THEREOF

Abstract

A magnesium alkoxide catalyst support and the preparation method and use thereof are provided. The method for preparing the magnesium alkoxide catalyst support comprises the following steps: mixing a metallic magnesium, a monohydric alcohol, a halogenating agent and a surfactant at 0° C. to 90° C. under an inert gas atmosphere, and then washing the resultant with an inert solvent to obtain the magnesium alkoxide catalyst support. A magnesium alkoxide catalyst support obtained by the above method is also provided, which can be used to catalyze olefin polymerization. The magnesium alkoxide catalyst support obtained by the above method according to the invention has excellent particle morphology and controllable size, and is suitable for preparing a catalyst for olefin polymerization.

Claims15

Dependent claims

A method for preparing a magnesium alkoxide catalyst support, characterized in that, the method comprises the following steps:

mixing a metallic magnesium, a monohydric alcohol, a halogenating agent and a surfactant at 0° C. to 90° C. under an inert gas atmosphere, and then washing the resultant with an inert solvent to obtain the magnesium alkoxide catalyst support;
wherein the monohydric alcohol is added in an amount of 2 mol to 50 mol, the halogenating agent is added in an amount of 0.0025 mol to 0.03 mol, and the inert organic solvent is added in an amount of 2 mol to 50 mol, based on 1 mol of the metallic magnesium;
wherein the surfactant is added in a volume of from 0.01% to 10% based on the volume of the monohydric alcohol, and the surfactant is one or more selected from aliphatic esters or aromatic esters having 1 to 20 carbon atoms.

Dependencies are inferred from the claim text.

Facts

Application

16/201,973Filed 27 Nov 2018

Priority

CN 201711245608.01 Dec 2017

Published

6 Jun 2019

Term ends

Not estimatedThe source records don’t support an estimate.

Classification5 codes

C08F 10/00
Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double
C08F 4/02
Polymerisation catalysts: carriers therefor
C08F 2410/01
Features related to the catalyst preparation, the catalyst use or to the deactivation of the catalyst: additive used together with the catalyst,…
C08F 2410/06
Features related to the catalyst preparation, the catalyst use or to the deactivation of the catalyst: catalyst characterized by its size

Magnesium alkoxide catalyst support and the preparation method and use thereof

Life of this patent

Magnesium alkoxide catalyst support and the preparation method and use thereof

Life of this patent

Abstract

Claims15