Method for catalysis of pimelinketone oxamidine

A technology of cyclohexanone ammonia oxime and cyclohexanone, which is applied in the field of cyclohexanone ammonia oximation catalyzed by titanium silicon materials
CN101314577AActive Publication Date: 2008-12-03CHINA PETROLEUM & CHEM CORP +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA PETROLEUM & CHEM CORP
Publication Date
2008-12-03

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Abstract

The invention discloses a method for catalyzing ammoximation of cyclohexanone. The method comprises the steps as follows: subjecting cyclohexanone, ammonia, oxygen, hydrogen, diluent gas and a solvent to coming in contact with a catalyst. The mole ratio of cyclohexanone, to ammonia, oxygen, hydrogen and diluent gas is 1:(0.1-10.0):(0.1-10.0):(0.1-10.0):(0-100). The mass ratio of the solvent to the catalyst is (20-1000):1. The catalyst is a microporous titanium-silicon material or a compound containing the microporous titanium-silicon material. The composition of the microporous titanium-silicon material is expressed as xTiO2*100SiO2*yEmOn*zE in an oxide form, wherein x ranges from 0.001 to 50.0; the sum of y plus z ranges from 0.005 to 20.0; the ratio of y to z is smaller than 1; E is one or more metal noble metals selected from Ru, Rh, Pd, Re, Os, Ir, P and Au; m and n are numbers required for meeting the oxidation state of the E; and material grains are partially or totally hollow-structured. The method has the advantages of high selectivity of cyclohexanone oxime, high product activity and stability, environment friendliness and low cost.
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Description

Technical field

[0001] The invention relates to a method for catalyzing the ammoximation of cyclohexanone, and more particularly to a method for catalyzing the ammoximation of cyclohexanone by a titanium-silicon material containing noble metals. Background technique

[0002] Cyclohexanone oxime is a key intermediate for the production of ε-caprolactam, and ε-caprolactam is an important organic chemical raw material, mainly used as a monomer for synthetic fibers and engineering plastics (such as nylon-6). About 91% of caprolactam in industry is produced through the cyclohexanone oxime route, that is, the cyclohexanone-hydroxylamine process. This process is not only complex, long production process, high equipment investment, but also due to the production or use of NO X , SO X And there are serious corrosion and pollution problems. With the increasing awareness of environmental protection in our country, the research and development of a method for producing cyclohexanone oxime wi...

Claims

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