Solid alpha-olefin polymerization catalyst components

Patent

Solid alpha-olefin polymerization catalyst components

- 15 May 1990

9

TL;DR: In this article, a process for preparing a solid catalyst component which comprises halogenating a magnesium compound in the formula MgRR¹ is described, in which R and R are the same or different alkoxy or phenoxy groups and n is a number of from 0 to 2 with a halide of tetravalent titanium in the presence of dialkylester of a dihydric aromatic carboxylic acid and an inert hydrocarbon diluent by reacting at a temperature of from 120 to 136 °C.

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Citations

Patent

Solid catalyst component and catalyst for polymerization of olefins

Kenji Goto, +3 more

- 09 Feb 1996

TL;DR: A solid catalyst component for polymerization of olefins prepared by reacting a titanium halide, a diester of aromatic dicarboxylic acid and a dialkoxymagnesium having a bulk density of at least 0.25 g/ml and an average particle size of 1 to 100 μm is presented in this article.

...read moreread less

52

Patent

Polyolefin catalyst for polymerization of propylene and a method of making and using thereof

Edwar S Shamshoum, +2 more

- 16 Dec 1997

TL;DR: In this article, a polyolefin catalyst component is formed by chlorinating magnesium ethoxide and then treating the product first with an electron donor, particularly diethyl phthalate or di-isobutyl pthalate, at a relatively low donor level, and then second with a titanating agent, such as titanium tetrachloride, to produce a catalyst component.

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45

Patent

Solid titanium catalyst component for olefin polymerization, process for preparation of the same, olefin polymerization catalyst and process for olefin polymerization

Tetsunori Shinozaki, +4 more

- 30 Apr 1996

TL;DR: In this article, a solid titanium catalyst component for olefin polymerization comprising magnesium, titanium, halogen, and a phthalic diester represented by the following structural formula (i): STR1## wherein R is a branched hydrocarbon group of 7 carbon atoms, and two or R may be the same as or different from each other.

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21

Patent

Treatment of a titanium tetrachloride-containing waste stream

Marcellinus Antonius Maria Te Nijenhuis, +1 more

- 28 Feb 2003

TL;DR: In this article, a process to increase the amount of TiC I4 that is retrieved from a waste stream comprising one or more titanium (halo) (alk) oxides while also reducing the quantity and/or hazard of the resulting waste is described.

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11

Patent

Method for producing solid catalyst component for olefin polymerization, catalyst for olefin polymerization, and method for producing olefin polymer

Toshiya Uozumi, +1 more

- 03 Aug 2012

TL;DR: A method for producing a solid catalyst component for olefin polymerization includes bringing a magnesium compound, a tetravalent titanium halide compound, and an electron donor compound represented by a general formula (1) into contact with each other, reacting the mixture, washing the resulting reaction product to obtain a solid component, bringing the solid component and the corresponding reaction product into contact, and washing the result.

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3

References

Patent

Components and catalysts for the polymerization of olefins

Mario Sacchetti, +2 more

- 22 Mar 1995

TL;DR: The catalysts obtained from the components of the invention are particularly suitable for gas-phase polymerization processes as discussed by the authors, and are used for gas phase polymerization of olefins.

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947

Patent

A solid catalyst component for the polymerization of olefins and an olefin polymerization catalyst

Minoru Terano, +2 more

- 03 Jul 1987

TL;DR: In this paper, a solid catalyst component prepared by admixing and reacting, with a reaction product which has been obtained by suspending diethoxymagnesium in an alkylbenzene and bringing the suspension into contact with titanium tetrachloride in an amount less than 1 in terms of volume ratio to the alkylsensene, a phthaloyl dichloride at a temperature within the range between 80° C and 125° C.

...read moreread less

117

Patent

Olefin polymerization catalyst compositions and a process for the polymerization of olefins employing such compositions

Brian L. Goodall, +2 more

- 17 Apr 1980

TL;DR: An olefin polymerization catalyst composition consisting of a reaction product of an organoaluminum compound and an electron donor has been obtained by halogenating a magnesium compound with the formula MgR1 R2 in the presence of a halohydrocarbon as discussed by the authors.

...read moreread less

98

Patent

Magnesium carboxylate supports

Gregory G. Arzoumanidis, +2 more

- 04 Jul 1985

TL;DR: In this paper, a transition metal component and a magnesium carboxylate were combined by reacting a solution of hydrocarbyl magnesium compound with carbon dioxide to precipitate a modified version of the mixture.

...read moreread less

38

Patent

Catalyst and process for the polymerization of olefins

Nicholas M. Karayannis, +2 more

- 08 Nov 1971

TL;DR: In this paper, disubstituted heterocyclic amine oxides substituted alpha, alpha' to the N atom have been found to markedly reduce production of alkane-soluble components formed during the polymerization of propylene and its mixtures with titanium chloride-organoaluminum catalyst.

...read moreread less

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