US 2025/0179226 A1 · METHOD FOR PREPARING ZIEGLER-NATTA CATALYST FOR POLYMERIZATION OF LOW-DENSITY COPOLYMER

Abstract

The present disclosure relates to a method for preparing a Ziegler-Natta catalyst for polymerization of a low-density copolymer, and in particular, to a method for preparing a Ziegler-Natta catalyst including preparing a magnesium chloride support using an inorganic chloride as a halogen source of the magnesium chloride support. In the method for preparing a Ziegler-Natta catalyst according to an embodiment, an inorganic chloride is used when preparing the magnesium chloride support, such that reaction conditions are mild and generation of impurities is minimized, which is preferable for large-scale preparation of catalysts.

Claims14

Dependent claims

A method for preparing a Ziegler-Natta catalyst for polymerization of a low-density copolymer, the method comprising:

obtaining a magnesium chloride support by reacting dialkyl magnesium with an inorganic chloride represented by the following Chemical Formula 1;
and
sequentially adding an alkyl aluminum chloride represented by the following Chemical Formula 2 and a metal compound containing titanium (Ti) to the magnesium chloride support to allow a reaction to proceed:
R1xAlCl3-x Chemical Formula 1
in Chemical Formula 1,
each R1 is independently C1-10 alkyl or C3-10 cycloalkyl;
and
x is 0 to 2,
R2yAlCl3-y Chemical Formula 2
in Chemical Formula 2,
each R2 is independently C1-10 alkyl or C3-10 cycloalkyl;
and
y is 1 to 2.

10 more elements

Dependencies are inferred from the claim text.

Method for preparing ziegler-natta catalyst for polymerization of low-density copolymer

Life of this patent

Method for preparing ziegler-natta catalyst for polymerization of low-density copolymer

Life of this patent

Abstract

Claims14