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Preparation process and device of polybutylene-1 resin

A preparation process and resin-like technology, which is applied in the field of polymer preparation, can solve the problems of easy agglomeration of polymer output, unsuitable pilot industrial equipment, and difficulty in material transportation, achieving high polymerization efficiency, simplified equipment, and low cost. cheap effect

Pending Publication Date: 2022-05-10
CHINA PETROLEUM & CHEM CORP +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the patent document CN103788262B, the polymer is transferred to a closed container containing hot water after the reaction is completed, and steam is passed through the bottom to deactivate the active center and remove unreacted monomers at the same time. The operation is simple, but the polymer discharge is very easy to agglomerate , the follow-up material transportation is difficult, not suitable for pilot test and industrial equipment

Method used

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  • Preparation process and device of polybutylene-1 resin
  • Preparation process and device of polybutylene-1 resin

Examples

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example

[0029] According to the present invention, the organoaluminum compound component (B) (cocatalyst) can be selected from alkylaluminum compounds having the structural formula AlR n x (3-n), where R is an alkyl, aralkyl or aryl group with 1-20 carbon atoms, X is a halogen, and n is an integer of 0-3. Specifically include but are not limited to the following examples: trimethylaluminum, triethylaluminum, triisobutylaluminum, trihexylaluminum, tri-n-butylaluminum, diethylaluminum monochloride, monoethylaluminum dichloride, dimethylaluminum Aluminum monochloride, diisobutylaluminum monochloride, isobutylaluminum dichloride, tris(2-methyl-3-phenyl-butyl)aluminum, tris(2-phenyl-butyl)aluminum. The organoaluminum compound component (B) may also be selected from aluminum compounds of aluminoxanes, such as methylaluminoxane, tetra(isobutyl)aluminoxane, tetrakis(2,4,4-trimethyl-pentyl ) aluminoxane, tetrakis(2,3-dimethylbutyl)aluminoxane, tetrakis(2,3,3-trimethylbutyl)aluminoxane and th...

Embodiment 1

[0057] refer to figure 1, the preparation device of polybutene-1 type resin comprises polymerization reactor 1, mixer 2, conveying booster pump 3 and devolatilization equipment 4 that are arranged in sequence; One is shown); the polymerization reactor is a liquid phase stirred tank reactor, and the devolatilization equipment is provided with two connected in series, and a heat exchanger 5 is arranged before each devolatilization equipment, and the described devolatilization equipment 4 is a flash tank, The polymer melt outlet of the last devolatilization device 4 is connected with the granulation device 6, the butene-1 outlet is connected with the butene-1 recovery device 7, and the material outlet of the granulation device 6 is connected with the silo 8, and The material outlet of the ene-1 recovery device 7 is connected with the polymerization reactor 1 .

[0058] The preparation process of the polybutene-1 type resin of this embodiment comprises: main catalyst is prepared ...

Embodiment 2

[0063] The catalyst used in embodiment 2, pre-complexation, polymerization process conditions are identical with embodiment 1. The difference from the examples is that the antioxidant 1135 is selected as the antioxidant added during mixing.

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Abstract

The invention belongs to the technical field of polymer preparation, and discloses a preparation process and device of polybutylene-1 resin. The preparation process comprises the following steps: 1) under the action of a Ziegler-Natta catalyst system, carrying out polymerization reaction on butene-1 and optional C2-C10 alpha-olefin monomer in an inert organic solvent or liquid butene-1 to obtain a polymer solution; 2) mixing the polymer solution with an antioxidant and a deactivator; 3) pressurizing and heating the mixture obtained in the step 2) to obtain a mixture containing supercritical butene-1; and 4) carrying out volatile component removal treatment on the mixture containing the supercritical butene-1 to obtain a polymer melt. The preparation process disclosed by the invention can greatly reduce the load of a delivery pump and a heat exchanger, improve mass transfer and heat transfer efficiency, optimize the process flow and simplify devices and equipment.

Description

technical field [0001] The invention belongs to the technical field of polymer preparation, and more specifically relates to a preparation process and device of polybutene-1 resin. Background technique [0002] Compared with other polyolefin materials, polybutene-1 resins have excellent creep resistance, environmental stress crack resistance and impact resistance, and are very suitable for use as pipes, such as water supply pipes, hot water pipes, industrial pipes and Pipes for buildings, etc.; adding comonomers can broaden the application field, improve the balance between product toughness and rigidity, and make it have good tear-off performance and puncture resistance. It is suitable for film products and can also be used as polyolefin modifiers and binders. At present, polybutene-1 resins have been used in pipes, food and hygiene product packaging, construction, home improvement furniture, agriculture and other fields. [0003] The preparation methods of polybutene-1 m...

Claims

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Application Information

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IPC IPC(8): C08F110/08C08F210/08C08F210/16C08F6/10C08F2/01B01J8/10B01F33/80
CPCC08F110/08C08F210/08C08F6/003B01J8/10C08F210/16C08F2/01C08L23/20
Inventor 陈江波陈明宋文波宁波梁大立施俊林苏洪曹晶洋胡晓石陈平
Owner CHINA PETROLEUM & CHEM CORP
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