Catalyst and its preparing process and usage method and use

A technology of catalysts and additives, which is applied in the field of hydrogenation saturated catalysts, can solve the problems of high cost, high cost, and unfavorable production, and achieve the effects of proper proportioning, reasonable acidity control, and improved catalyst activity

Active Publication Date: 2006-12-13
兰州金润宏成新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, domestic petroleum resin hydrogenation units all use imported palladium-based cata

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The preparation of embodiment 1 catalyst of the present invention

[0027] Aluminum hydroxide powder prepared by nitric acid method is mixed and kneaded with nitric acid aqueous solution, water, and silicon micropowder, extruded, dried at 120°C, and then calcined at 1000°C for 4 hours to obtain the carrier of the present invention. Separately weigh 4 parts by weight of sodium carbonate and 6 parts by weight of tungsten oxide, add about 50ml of distilled water and 2ml of nitric acid, stir and heat to 80°C, wait until they are completely dissolved and cool for later use. Then take 40ml of palladium chloride solution (containing 0.25gPd / ml) and mix it with the above solution and dilute to 1L with distilled water. 1 L containing PdCl 2 Adjust the pH value of the mixed solution of catalyst additive elements to 2.8, heat, then immerse 1 kg of the above-mentioned carrier, boil for 20 minutes, remove the residual liquid, wash the catalyst with distilled water for 3 times, age,...

Embodiment 2

[0028] The preparation of embodiment 2 catalysts of the present invention

[0029] Aluminum hydroxide powder prepared by nitric acid method is kneaded with nitric acid aqueous solution, silica sol aqueous solution and water, extruded, dried at 100°C, and then calcined at 800°C for 6 hours to obtain the carrier of the present invention. Weigh 10 parts by weight of molybdenum oxide and 10 parts by weight of potassium carbonate, add about 100ml of distilled water and 5ml of nitric acid, stir and heat to 100°C, wait until they are completely dissolved and then cool for later use. Then take 50ml of palladium nitrate solution (containing 0.30gPd / ml) and mix it with the above solution, then dilute to 1L with distilled water. Adjust the pH value of 1L of the mixed solution containing palladium nitrate and catalyst promoter elements to 2.0, heat, then immerse 1kg carrier, boil for 30 minutes, remove the residual liquid, wash the catalyst with distilled water for 5 times, age, dry, Cal...

Embodiment 3

[0030] The preparation of embodiment 3 catalysts of the present invention

[0031] Aluminum hydroxide powder prepared by nitric acid method is kneaded with nitric acid aqueous solution, silica sol aqueous solution and water, extruded, dried at 110°C, and then calcined at 900°C for 5 hours to obtain the carrier of the present invention. Weigh 4 parts by weight of molybdenum oxide and 2 parts by weight of potassium carbonate, add about 70ml of distilled water and 2ml of phosphoric acid, stir and heat to 90°C, wait until they are completely dissolved and then cool for later use. Then take 50ml of palladium chloride solution (containing 0.25gPd / ml) and mix it with the above solution, then dilute to 1L with distilled water. Adjust the pH value of 1L of the mixed solution containing palladium chloride and catalyst promoter elements to 2.5, heat, then immerse 1kg of the carrier, boil for 25 minutes, remove the remaining liquid, wash the catalyst with distilled water for 3 times, age ...

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PUM

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Abstract

The disclosed catalyst comprises: the 1.00-1.50% Pd as active constituent, and the auxiliary agent composed by 0.5-5% X1 from IA family and 1-5% X2 from VIB family. This invention reduces cost greatly and fit to the hydrogenation remove-olefin for C5 petroleum resin.

Description

technical field [0001] The invention relates to a hydrogenation saturation catalyst for olefins in petroleum resins, which is a catalyst for deep hydrotreating of low molecular weight polymers to improve their quality, in particular to a catalyst for C 5 Catalyst for hydrogenation saturation of olefins in petroleum resin and its preparation, use and application. Background technique [0002] Petroleum resin is a by-product of ethylene plant C 5 、C 9 The distillate is the main raw material, and the solid or viscous relatively low molecular weight polymer obtained by polymerization, the relative molecular weight is generally less than 2000. Because of its low acid value, good miscibility, low melting point, good adhesion, water resistance and chemical resistance, it is widely used in adhesive tapes, hot melt adhesives, road coatings, inks and rubbers. The production of petroleum resins in developed countries in the world tends to be large-scale, diversified, and serialized....

Claims

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Application Information

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IPC IPC(8): B01J23/652B01J23/58C10G45/10
Inventor 张小工
Owner 兰州金润宏成新材料科技有限公司
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