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Process for producing cycloalkanol and/or cycloalkanone

A technology of cycloalkanone and cycloalkanol, applied in the field of preparing cycloalkanol and/or cycloalkanone, can solve unsatisfactory, cycloalkane conversion degree cycloalkanol and/or cycloalkanone selectivity is not always Satisfactory and other issues, to achieve the effect of excellent selectivity

Inactive Publication Date: 2008-03-26
SUMITOMO CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the above-mentioned Applied Catalysis A: General, (Netherlands), 2005, volume 280, pages 175-180 and the method described in the above-mentioned International Publication No. Not always satisfactory in terms of degree of conversion and selectivity of cycloalkanols and / or cycloalkanones
[0005] The catalyst described in the above-mentioned Korean Journal of Chemical Engineering (Republic of Korea), 1998, volume 15, pages 510-515 is used to oxidize cyclohexane, but the purpose of preparing the catalyst having the above-mentioned composition is to generate adipic acid, and Unsatisfactory as a catalyst for the preparation of cycloalkanols and / or cycloalkanones with excellent selectivity

Method used

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  • Process for producing cycloalkanol and/or cycloalkanone
  • Process for producing cycloalkanol and/or cycloalkanone

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] 100 g of cyclohexane and 0.1 g of the mesoporous silica obtained in Reference Example 1 were introduced into a 300 ml high-pressure vessel, and after the system was pressurized to 0.93 MPa with nitrogen at room temperature, the mixture was heated to 130° C. and contained in 5 The reaction was carried out for 8 hours in an air flow with volume % concentration of oxygen.

[0041] At the time point of 8 hours after the start of the reaction, the degree of conversion of cyclohexane was 8.6%, the selectivity of cyclohexanone was 39.7%, the selectivity of cyclohexanol was 40.9%, and the selectivity of cyclohexyl hydroperoxide was 2.1%. % (total selectivity: 82.7%).

Embodiment 2

[0043] The same operation as in Example 1 was carried out, except that the mesoporous silica obtained in Reference Example 2 was used instead of the mesoporous silica obtained in Reference Example 1.

[0044] At the time point of 8 hours after the start of the reaction, the degree of conversion of cyclohexane was 8.8%, the selectivity of cyclohexanone was 39.3%, the selectivity of cyclohexanol was 41.4%, and the selectivity of cyclohexyl hydroperoxide was 1.0%. % (total selectivity: 81.7%).

Embodiment 3

[0046] The same operation as in Example 1 was carried out, except that the mesoporous silica obtained in Reference Example 3 was used instead of the mesoporous silica obtained in Reference Example 1.

[0047] At the time point of 8 hours after the start of the reaction, the conversion degree of cyclohexane was 8.1%, the selectivity of cyclohexanone was 39.8%, the selectivity of cyclohexanol was 42.1%, and the selectivity of cyclohexyl hydroperoxide was 1.9% % (total selectivity: 83.8%).

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Abstract

The object of the present invention is to provide a process capable of producing cycloalkanol and / or cycloalkanone with excellent selectivity by oxidizing cycloalkane with a good degree of conversion. Thus, the present invention relates to a process for producing cycloalkanol and / or cycloalkanone, which comprises oxidizing cycloalkane with oxygen at 25 to 140 DEG C in the presence of mesoporous silica containing a group 8 and / or 9 element in the periodic table, wherein the content of phosphorus atom in the mesoporous silica is 0 to 4 mol% based on silicon atom. Said element is preferably cobalt and said mesoporous silica is preferably MCM-41.

Description

technical field [0001] The present invention relates to a process for the preparation of cycloalkanols and / or cycloalkanones by oxidizing cycloalkanes with oxygen. Background technique [0002] The method of preparing cycloalkanol and / or cycloalkanone by oxidizing cycloalkane with oxygen has been studied, wherein the oxidation is carried out in a heterogeneous system using mesoporous silica containing certain kinds of metal elements as a catalyst. For example, Applied Catalysis A: General, (Netherlands), 2005, Vol. 280, pp. 175-180 describes an oxidation method at 140 to 160° C. using gold-containing mesoporous silica as a catalyst, and International Publication No. 00 / 03963 describes an oxidation process at 200 to 350° C. in the presence of mesoporous mixed oxide catalysts, in particular mesoporous mixed oxide catalysts containing chromium and vanadium. [0003] Korean Journal of Chemical Engineering (Republic of Korea), 1998, Vol. 15, pp. 510-515 describes a method using ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C27/12C07C35/08C07C45/33C07C49/403B01J27/182
CPCC07C29/50B01J29/0308B01J29/041B01J29/0333C07C2101/14C07C45/33C07C2601/14C07C49/403C07C35/08
Inventor 星野正大石田一铃木达也
Owner SUMITOMO CHEM CO LTD