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Cobalt phosphide catalyst for preparing 3-pentanone and propanal from hydrogen, carbon monoxide and ethylene

A carbon monoxide and catalyst technology, applied in the direction of carbon monoxide reaction preparation, physical/chemical process catalysts, chemical instruments and methods, etc.

Active Publication Date: 2013-05-08
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the above catalysts all use noble metals

Method used

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  • Cobalt phosphide catalyst for preparing 3-pentanone and propanal from hydrogen, carbon monoxide and ethylene
  • Cobalt phosphide catalyst for preparing 3-pentanone and propanal from hydrogen, carbon monoxide and ethylene
  • Cobalt phosphide catalyst for preparing 3-pentanone and propanal from hydrogen, carbon monoxide and ethylene

Examples

Experimental program
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Effect test

Embodiment 1

[0022] The catalyst of Example 1 is 15% Co-0.66% P / coconut shell carbon (Co / P=12 molar ratio). Weigh 10.0 grams of coconut shell charcoal (20-40 mesh, BET specific surface area: 1135m 2 / g, the average pore size is 21nm), the configuration 8ml contains 7.80 grams of Co(NO 3 ) 2 .6H 2 O and 0.3 g (NH 4 ) 2 HPO 4 aqueous solution, drop about 2ml of concentrated HNO 3 , heat to dissolve, impregnate the coconut shell charcoal carrier with this aqueous solution, dry in a water bath at 60°C, and dry in an oven at 80°C for 8 hours. At this time, the weight of the dried sample was about 18.45 grams. The prepared product is the precursor of the 15%Co-0.66%P / coconut shell carbon catalyst.

[0023] Before the precursor of the above-mentioned catalyst is used, take 5ml (3.4 grams) of the above-mentioned catalyst and place it in the inner diameter of φ10, and the length is the middle section of a stainless steel reactor of 30 cm, and both ends are filled with 20-40 mesh quartz sand...

Embodiment 2

[0025] The catalyzer of embodiment 2 is 15%Co-0.66%P / almond kernel charcoal (Co / P=12 molar ratio). In addition to using apricot charcoal (BET specific surface area: 1070m 2 / g, the average pore diameter is 25nm), and all the other preparation steps are the same as in Example 1.

Embodiment 3

[0027] The catalyst of Example 3 is 15% Co-0.66% P / carbon nanotube (Co / P=12 molar ratio). In addition to the use of carbon nanotubes (BET specific surface area: 254m 2 / g, the average pore diameter is 7.5nm), and all the other preparation steps are the same as in Example 1.

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Abstract

The present invention provides a cobalt phosphide catalyst for preparing 3-pentanone and propanal from hydrogen, carbon monoxide and ethylene. Specifically the present invention provides an active carbon supported cobalt phosphide catalyst for preparing 3-pentanone and propanal from H2, CO and ethylene under a certain temperature and pressure reaction condition. The catalyst comprises a main active component, an additive and a carrier, wherein the main active component is a cobalt phosphide, the additive is one or a plurality of alkali metals or oxides thereof, and the carrier is selected from active carbon. In a fixed bed reactor, at a creation temperature, under a certain pressure and in the presence of the catalyst, high activity and high selectivity preparation of products such as 3-pentanone and propanal by using H2, CO and ethylene can be achieved.

Description

technical field [0001] The invention relates to a supported cobalt phosphide catalyst for preparing 3-pentanone and propionaldehyde by using hydrogen, carbon monoxide and ethylene as raw materials. More specifically, the present invention relates to CO, H 2 A catalyst for efficiently producing 3-pentanone and propionaldehyde with ethylene mixed gas as a raw material and cobalt phosphide supported on activated carbon. technical background [0002] 3-Pentanone is an important fine chemical raw material and a high-grade solvent, widely used in the synthesis of dyes, medicines and pesticides, and as an organic solvent. As a key intermediate in the production of the pesticide herbicide pendimethalin and the anti-avian flu drug Tamiflu, the amount of 3-pentanone is increasing year by year. The methods for synthesizing 3-pentanone include: 3-pentanol oxidation method, methyl ethyl ketone and methanol one-step method, methanol butanone one-step method, piperylene method, acid-acid...

Claims

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Application Information

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IPC IPC(8): B01J27/185B01J27/187B01J27/19C07C49/04C07C47/02C07C45/50
Inventor 丁云杰宋宪根吕元陈维苗
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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