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Process for producing alkene random copolymerization by serum method

A process method and olefin copolymerization technology, which is applied in the field of olefin copolymerization random substances, can solve the problems of long process and complicated process, and achieve the effects of moderate reaction conditions and short process flow.

Inactive Publication Date: 2005-07-20
辽阳辽化奇达化工有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

What's more, the use of two-stage polymerization results in a long process and complicated process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] Below by example the present invention is further illustrated.

[0014] Example 1 In a 1500L polymerization kettle, add 100 parts by weight of heptane solvent, start stirring, add titanium 2.9×10 -4 parts by weight of titanium chloride and adding aluminum 25×10 -4 The catalyst that the triisobutylaluminum composition of weight part is passed into 8 * 10 -3 Parts by weight of hydrogen, feed propylene and ethylene, the ratio is 92:8 parts by weight, the reaction temperature is controlled at 80-88°C, the pressure is controlled at 1.2MPa, and the reaction is carried out for 2 hours. The reactants are put into a 4000L distillation pot, and the distillation temperature is controlled at 80 ~130°C, the pressure was controlled at 0.05 MPa, and 31 parts by weight of random copolymers were obtained, with a random content of 94.6%.

[0015] Example 2 adding titanium 5.8×10 -4 Parts by weight titanium chloride and aluminum 8.6×10 -3 For the alkylaluminum in parts by weight, the ...

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PUM

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Abstract

A process for preparing the atactic copolymers for olefine by slurry method uses propylene, ethylene, or butylene-1 as raw material and the saturated straight-chain C5-C10 paraffin as solvent, and includes such steps as copolymerizing reaction at 60-90 deg.c and 1-2 MPa under the action of catalyst and distilling. Its advantages are high purity (90-98%), low cost and no environmental pollution.

Description

1. Technical field: [0001] The invention relates to a process for olefin copolymerization random, in particular to a process for producing olefin copolymer random by a slurry method. 2. Technical background: [0002] Random polypropylene and random olefin copolymers can be divided into homopolymerization, group copolymerization and end-blocking copolymerization in terms of molecular structure. The random polypropylene and random olefin copolymers reported in a large number of literatures have different numbers of random segments in the polymer molecular segment, which is a modification of polypropylene or olefin copolymers and belongs to polypropylene products. One of. Such as JP61-2708, the publication date is the Japanese patent on January 8th, Showa 61 (1986), and the title is "method for producing random polymers of propylene and ethylene", which is bulk polymerization with propylene as a solvent. JP2001-220405A, the publication date is August 14, 2001 (2001.8.14) Japa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F2/06C08F10/00
Inventor 方奇
Owner 辽阳辽化奇达化工有限责任公司