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Method for preparing hydrogenated petroleum resin

A technology for hydrogenating petroleum resin and petroleum resin, which is applied in the field of preparation of hydrogenated petroleum resin, can solve the problems of decreased compatibility and increased resin saturation, and achieves the effects of improving compatibility, increasing activity and facilitating technology popularization.

Inactive Publication Date: 2012-10-10
HENGHE MATERIALS & SCI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Hydrogenated petroleum resin is light in color (close to colorless), odorless and tasteless, has excellent oxidation resistance, heat resistance, and UV resistance. It is the main choice to replace most existing petroleum resin applications. The main defect is that the resin saturation increases , Compatibility with EVA, SIS, SBS and other polar resins is significantly reduced

Method used

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  • Method for preparing hydrogenated petroleum resin
  • Method for preparing hydrogenated petroleum resin
  • Method for preparing hydrogenated petroleum resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Mix C5 petroleum resin with a Gardner hue of 7 and a softening point of 105°C with hydrocracked aviation kerosene with a boiling point of 200-240°C in a mass ratio of 1:6, then fully dissolve and preheat to 130°C to obtain petroleum resin liquid. The above-mentioned resin liquid and hydrogen are transported into a trickle bed reactor with a fixed bed of hydrogenation catalyst, and the hydrogenation reaction is carried out in the presence of a modified Pd catalyst. The hydrogenation temperature is 270 ° C, the reaction hydrogen pressure is 15.0 MPa, and the reaction space velocity is 0.3h -1 . The active component of the catalyst is Pd, its mass content is 1.0%, the modifier ZnS content is 0.15% of the catalyst mass, and the carrier is γ-Al 2 o 3 , active Al 2 o 3 The specific surface area is 70m 2 / g, the catalyst mesh is 8×14 mesh, and the bulk density is 0.82%. The above-mentioned petroleum resin liquid after hydrogenation is desolventized and oligomers through...

Embodiment 2

[0036]Mix C9 petroleum resin with a Gardner hue of 6 and a softening point of 120°C with hydrocracked aviation kerosene with a boiling point of 200-240°C in a mass ratio of 1:7, fully dissolve, and preheat to 130°C to obtain petroleum resin liquid. The above-mentioned resin liquid and hydrogen are transported into a trickle bed reactor with a fixed bed of hydrogenation catalyst, and the hydrogenation reaction is carried out in the presence of a modified Pd catalyst. The hydrogenation temperature is 280 ° C, the reaction hydrogen pressure is 15.0 MPa, and the reaction space velocity is 0.3h -1 . The active component of the catalyst is Pd with a mass content of 1.05%, the modifier ZnS content is 0.30% of the catalyst mass, and the carrier is γ-Al 2 o 3 , active Al 2 o 3 The specific surface area is 110m 2 / g, the catalyst mesh is 8×14 mesh, and the bulk density is 0.72%. The above-mentioned petroleum resin liquid after hydrogenation, the solvent and oligomers are removed ...

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Abstract

The invention relates to a method for preparing hydrogenated petroleum resin. The method comprises the following steps of: (1) mixing petroleum resin and hydrogenation solvent in a mass ratio of 1: (2-7), fully dissolving, and preheating to the temperature of between 90 and 160 DEG C to obtain petroleum resin liquid; (2) delivering the petroleum resin liquid and hydrogen to a trickle bed reactor with a hydrogenation catalyst fixed bed together, and performing hydrogenation reaction in the presence of a modified Pd catalyst to obtain hydrogenated petroleum resin liquid; and (3) removing the solvent and oligomers from the hydrogenated petroleum resin liquid through a reduced pressure rectification tower, and thus obtaining the hydrogenated petroleum resin. The method is easy and convenient, is suitable for the petroleum resin of which the Gardner hue is less than or equal to No.8 and the softening point is 90 to 120 DEG C, and is beneficial to technical promotion.

Description

technical field [0001] The invention belongs to the field of petroleum resin modification, in particular to a preparation method of hydrogenated petroleum resin. Background technique [0002] Petroleum resin is a medium and low molecular weight polymer obtained by thermal polymerization or catalytic polymerization with ethylene cracking by-products C5 and C9 fractions as the main raw materials. Its number average molecular weight is usually less than 2000. It has low acid value, good miscibility and low melting point. , good adhesion, water resistance and chemical resistance. At present, it has been widely used in road marking paint, ink, rubber processing, adhesives and other fields. According to the monomer and molecular structure of the resin, it can be divided into aromatic petroleum resin, aliphatic petroleum resin and alicyclic petroleum resin. [0003] With the development of technology in the field of petroleum resin and the requirements of downstream application fi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F240/00C08F8/04
Inventor 孙向东王斌李爱元彭振博
Owner HENGHE MATERIALS & SCI TECH CO LTD
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