Method for preparing high-grade resin by catalytic hydrogenation

A technology for catalytic hydrogenation and hydrogen preparation, applied in the field of petroleum resin hydrogenation, can solve the problems of low product grade and poor economic benefits, and achieve the effects of less softening point, lower softening point and wide range of raw materials

Active Publication Date: 2012-08-15
河北启明化工科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The invention provides a method for preparing high-grade resin by hydrogenation, which solves the problems of low product grade and poor economic benefit in the process of resin conversion

Method used

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  • Method for preparing high-grade resin by catalytic hydrogenation
  • Method for preparing high-grade resin by catalytic hydrogenation
  • Method for preparing high-grade resin by catalytic hydrogenation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Embodiment 1: put into resin, solvent, palladium catalyst in one-stage kettle type high-pressure reactor, the ratio of solvent and resin is 10: 1, and the palladium catalyst consumption is 5wt% of resin, airtight rear replacement air is filled with 5MPa hydrogen, Slowly heated to the reaction temperature, the reaction temperature is 150 ° C, and then kept for 2h. Put the reacted reaction solution into the two-stage kettle-type high-pressure reactor and then add the skeleton nickel catalyst. The amount of nickel catalyst is 20wt% of the resin. After sealing, replace the air, fill with 8MPa hydrogen, and slowly heat to the reaction temperature. The reaction temperature is 220 ℃, and then keep for 2h. See the following table 1 for raw material properties, one-stage hydrogenation and two-stage hydrogenation results

[0018]

[0019] ① Hydrogenation was performed at 150°C over palladium catalyst for 2 hours, and then at 220°C over skeletal nickel catalyst for 2 hours.

...

Embodiment 2

[0023] Embodiment 2: put into resin, solvent, palladium catalyst in one-stage tank type high-pressure reactor, the ratio of solvent and resin is 10: 1, and the palladium catalyst consumption is 5wt% of resin, airtight rear replacement air is filled with 5MPa hydrogen, Slowly heated to the reaction temperature, the reaction temperature is 150 ° C, and then kept for 2h. Add the reacted reaction liquid to the two-stage kettle-type high-pressure reactor and add palladium catalyst. The amount of nickel catalyst is 5wt% of the resin. After sealing, replace the air, fill with 8MPa hydrogen, and slowly heat to the reaction temperature. The reaction temperature is 220°C , and then keep for 2h. See Table 2 below for resin properties after hydrogenation.

[0024]

[0025] It can be seen from Table 2 that the hydrogenation resin was prepared by using the precious metal palladium as the first-stage hydrogenation catalyst and the second-stage hydrogenation catalyst, and the resin was hy...

Embodiment 3

[0026] Embodiment 3: Put resin, solvent, palladium catalyst in one-stage kettle type high-pressure reactor, the ratio of solvent and resin is 10: 1, and the amount of skeleton nickel catalyst is 20wt% of resin, airtight rear replacement air, fills into 5MPa hydrogen , slowly heated to the reaction temperature, the reaction temperature is 150 ° C, and then kept for 2h. Put the reacted reaction solution into the two-stage kettle-type high-pressure reactor and then add the skeleton nickel catalyst. The amount of skeleton nickel is 20wt% of the resin. After sealing, replace the air, fill with 8MPa hydrogen, and slowly heat to the reaction temperature. The reaction temperature is 220 ℃, and then keep for 2h. Table 2 sees resin properties after hydrogenation

[0027] It can be seen from Table 2 that the hydrogenation reaction of the resin was carried out by using the skeleton nickel as the one-stage hydrogenation catalyst and the two-stage hydrogenation catalyst by adopting the two...

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Abstract

The invention discloses a method for preparing high-grade resin by catalytic hydrogenation and belongs to the technical field of resin catalytic hydrogenation. The method is characterized by comprising the following steps of: taking load type noble metal palladium as a first-section hydrogenation catalyst and taking framework nickel as a second-section hydrogenation catalyst; utilizing a two-section kettle type or a fixed bed continuous hydrogenation way to carry out hydrogenation reaction on the resin; and improving a resin color phase of the prepared hydrogenated resin to be water-white and have good heat stability. The method disclosed by the invention has the advantages of simple process and high catalyst activity, improves the resin chromaticity, improves the heat stability, slightly reduces the softening temperature, and has good economic benefits and wide industrial application prospect.

Description

technical field [0001] The invention belongs to the technical field of petroleum resin hydrogenation, and relates to a method for preparing a colorless, odorless, high-grade resin with good thermal stability through hydrogenation. Background technique [0002] Due to the yellowish or brown appearance of traditional resins, its application is largely limited. After hydrogenation modification, its degree of unsaturation is greatly reduced, the resin becomes colorless and has no special smell, and its adhesiveness and stability are improved, which further broadens its application field. Although the quality of petroleum resin in my country is gradually improving, most manufacturers are still focusing on expanding production capacity, controlling resources, and increasing market share. As the market tends to be saturated, the downstream market has continuously improved product quality requirements, and the country's regulations on environmental protection and occupational healt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F240/00C08F8/04
Inventor 梁长海许春建李闯陈霄肖子辉
Owner 河北启明化工科技有限公司
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