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Method for preparing silver carbonized Raney copper catalyst, catalyst and application

A technology for carbonizing Raney copper and catalysts, which is applied to Raney catalysts, physical/chemical process catalysts, chemical instruments and methods, etc., can solve the problems of low catalyst space velocity, etc., achieve high activity, low loss rate, and improve the use of effect of life

Active Publication Date: 2018-04-24
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although there are many documents and patents, such as patent CN103170349, US3912789A relates to the addition of promoter metals and can improve the selectivity and stability of the catalyst, but the problem of the low space velocity of the catalyst still cannot be changed

Method used

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  • Method for preparing silver carbonized Raney copper catalyst, catalyst and application
  • Method for preparing silver carbonized Raney copper catalyst, catalyst and application
  • Method for preparing silver carbonized Raney copper catalyst, catalyst and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] (1) 100 mass parts of liquid epoxy resin (Baling Petrochemical, CYD-128), 85 mass parts of curing agent methyltetrahydrophthalic anhydride (MeTHPA) (Guangdong Shengshida Technology and Trade Co., Ltd.), curing accelerator triethanolamine (TEA) (Tianjin Chemical Reagent No. 1 Factory) 1.5 parts by mass and stirred evenly.

[0060] (2) Take by weighing 50g step (1) prepared epoxy system and 150g copper-aluminum alloy powder and fully stir and mix, Cu content is 50% (weight) in the copper-aluminum alloy, and aluminum content 50% (weight), take appropriate amount Put the mixture into a cylindrical mold, mold it with a flat vulcanizer at a temperature of 120°C and a pressure of 7MPa for 30mins, and use a flat vulcanizer at a temperature of 150°C and a pressure of 7MPa for 90mins, and take it out after cooling to obtain a 2.0mm× About 3.0mm cylindrical catalyst precursor;

[0061] (3) Measure 100ml of catalyst precursor, put it into a tube-type high-temperature electric furn...

Embodiment 2

[0066] (1) Fully mix powdered phenolic resin and curing agent hexamethylenetetramine with a high-speed mixer, the weight ratio of hexamethylenetetramine to phenolic resin is 12 / 100; mix 100 grams of mixture with 300 grams of copper aluminum alloy The powder is fully mixed with a high-speed mixer, and the Cu content is 50% (weight) in the copper-aluminum alloy, and the aluminum content is 50% (weight);

[0067] (2) Heat up the tablet press to 90°C, put the above materials into the mold and press on the tablet press to form a sheet with a thickness of 2mm; raise the temperature of the tablet press to 150°C, and mold the formed sheet Put it into the mold and solidify under the pressure of 5MPa on the tablet press for 10min; cut the cured 2mm thick sheet into small rectangular particles of 3-5mm;

[0068] (3) Measure 100mL of small particles and carbonize them in a tube-type high-temperature electric furnace with a heating rate of 10°C / min and a furnace temperature of 650°C for 3 ...

Embodiment 3

[0073] (1) Fully mix powdered phenolic resin and curing agent hexamethylenetetramine with a high-speed mixer, the weight ratio of hexamethylenetetramine to phenolic resin is 12 / 100; mix 150 grams of mixture with 300 grams of copper aluminum alloy The powder is fully mixed with a high-speed mixer, and the Cu content is 50% (weight) in the copper-aluminum alloy, and the aluminum content is 50% (weight);

[0074] (2) Heat up the tablet press to 90°C, put the above materials into the mold and press on the tablet press to form a sheet with a thickness of 2mm; raise the temperature of the tablet press to 150°C, and mold the formed sheet Put it into the mold and solidify under the pressure of 5MPa on the tablet press for 10min; cut the cured 2mm thick sheet into small rectangular particles of 3-5mm;

[0075] (3) Measure 100mL of small particles and carbonize them in a tube-type high-temperature electric furnace with a heating rate of 10°C / min and a furnace temperature of 650°C for 6 ...

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Abstract

The invention discloses a method for preparing a silver carbonized Raney copper catalyst, a catalyst and an application. The method comprises the steps: (1) uniformly mixing Raney alloy particles witha curing system of carbonizable organic matters, and carrying out curing, so as to obtain a catalyst precursor; (2) carbonizing the obtained catalyst precursor at a high temperature under the protection of inert gas, and then, carrying out activation, so as to obtain a carbonized Raney copper catalyst; (3) preparing a mixed solution from soluble organic amine and water, and then, dissolving a soluble silver salt and soluble salts of other auxiliaries, so as to prepare a silver source solution; and (4) adding the carbonized Raney copper catalyst into deionized water, carrying out stirring to form a suspension solution, dropwise adding the silver source solution obtained in the step (3) into the carbonized Raney copper catalyst solution, and carrying out a reaction and washing, thereby preparing the silver carbonized Raney copper catalyst. According to the catalyst disclosed by the invention, alkyne in liquid-phase C4 distillate can be removed until the concentration is 30ppm or less, and the loss rate of 1,3-butadiene is controlled to be 3% or less.

Description

technical field [0001] The invention relates to the field of carbon four selective hydrogenation deacetylene catalysts, and furthermore, relates to a preparation method, catalyst and application of a silver carbonized Raney copper catalyst. Background technique [0002] 1,3-butadiene is an important chemical raw material for the production of synthetic rubber. The cracked mixed carbon four contains about 40-50% of 1,3-butadiene, which is the main source of butadiene. Polymerized dienes have high requirements on alkyne impurities. For example, polymerized butadiene requires a purity of more than 99.7% and an alkyne content of less than 50ppm. In order to meet the requirements of the polymerization grade, it is necessary to remove alkyne from the C4 fraction. At present, the industrial separation of butadiene from mixed carbon four mainly adopts two-stage solvent extraction and rectification technology, wherein one stage separates butene, butane, etc. from crude butadiene, an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J25/00C07C7/167C07C11/167
CPCB01J25/00C07C7/167C07C11/167
Inventor 彭晖吴佳佳鲁树亮张晓红王秀玲蒋海斌乐毅刘海江汪晓菁郝雪松徐洋乔金樑戴伟
Owner CHINA PETROLEUM & CHEM CORP
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