Hydrogenation catalyst for preparing dicyclopentadiene hydrogenated petroleum resin

A technology for hydrogenation of petroleum resin and dicyclopentadiene, which is applied in the field of hydrogenation catalysts and can solve problems such as the inability to obtain hue hydrogenation resins

Inactive Publication Date: 2004-03-31
SINOPEC SHANGHAI PETROCHEMICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of dicyclopentadiene petroleum resin can not be hydrogenated with the existing general petroleum resin hydrogenation catalyst to obtain a hydrogenated resin with ideal hue

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～8

[0021] One, the preparation of catalyst:

[0022] Weigh a certain amount of PdCl 2 and H 2 PtC 16 , Dissolve it in 0.1N HCl, take the specific surface as 150-250m 2 / g, γ-Al with a pore volume of 0.5-0.9ml / g 2 o 3 as a carrier. the Al 2 o 3 Pour into the above solution and age for 2 hours. Dry it with an infrared lamp while stirring, then place the catalyst precursor in a box-type resistance furnace and roast at 300°C for 1 hour, and then roast at 500°C for 3 hours to obtain a finished catalyst for future use. Catalyst index and catalyst consumption of each embodiment are shown in Table 1.

[0023] 2. Catalyst evaluation:

[0024] Add 200ml of cyclohexane into a 2L stirred autoclave with a capacity, and then add 200g of crushed dicyclopentadiene petroleum resin raw material and a required amount of catalyst into the still. The air in the kettle is fully replaced with nitrogen and hydrogen in sequence, and then reacted for 2 to 6 hours at a temperature of 280-300° C....

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Abstract

A hydrogenation catalyst for preparing dicyclopentadiene hydrogenant petroleum resin by dicyclopentadiene petroleum resin. The active components of the resin are Pd and Pt. The contents of Pd and Pt are 0.1í½ 1.0wtúÑ and 0.05í½0.5wtúÑ, respectively. The carrier of the catalyst is ª†-Al2O3, the specific surface are is 150í½250m2/g, the volume is 0.5í½0.9ml/g. Hydrogenant resin prepared from dicyclopentadiene petroleum resin through the catalyst has a lowered content of unsaturated hydrocarbon bonds, and the color of the resin is improved to water-white.

Description

technical field [0001] The invention relates to a hydrogenation catalyst, in particular to a catalyst for preparing dicyclopentadiene hydrogenated petroleum resin from dicyclopentadiene petroleum resin through catalytic hydrogenation. Background technique [0002] Dicyclopentadiene petroleum resin is usually prepared by thermal polymerization of dicyclopentadiene. It is a thermoplastic hydrocarbon resin with a relatively low number average molecular weight. It has better compatibility with other resins. It is often used as a tackifier and adhesive, and has been widely used in hot melt adhesives, pressure sensitive tapes, ink printing and rubber. At present, a large part of dicyclopentadiene is derived from the separation product of the C5 fraction produced by petroleum cracking to ethylene. The petroleum resin produced from this dicyclopentadiene generally has deep hue, odor, high content of unsaturated hydrocarbon bonds, heat It has defects such as low stability and oxidat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F8/04C08F240/00
Inventor 谢家明陈国忠杨忠保郑金达潘奇艳吴忠平
Owner SINOPEC SHANGHAI PETROCHEMICAL CO LTD
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