IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0483664
(1983-04-11)
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발명자
/ 주소 |
- Hermolin Joshua (Wilmington DE)
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출원인 / 주소 |
- E. I. Du Pont de Nemours and Company (Wilmington DE 02)
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인용정보 |
피인용 횟수 :
3 인용 특허 :
7 |
초록
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An improvement in a process for decomposing mixtures of cyclohexane and cyclohexyl hydroperoxide to mixtures of cyclohexanone and cyclohexanol is disclosed. According to the improved process, stable catalyst dispersions, or solutions derived therefrom, of transition metal complexes of certain 1,3-bi
An improvement in a process for decomposing mixtures of cyclohexane and cyclohexyl hydroperoxide to mixtures of cyclohexanone and cyclohexanol is disclosed. According to the improved process, stable catalyst dispersions, or solutions derived therefrom, of transition metal complexes of certain 1,3-bis(2-pyridylimino)isoindolines are formed by mixing, in cyclohexanone, cyclohexanol or mixtures of cyclohexanone, cyclohexanol and cyclohexane, cobalt, iron or manganese salts and 1,3-bis(2-pyridylimino)isoindolines.
대표청구항
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In a process for producing a mixture containing cyclohexanol and cyclohexanone, wherein cyclohexyl hydroperoxide is decomposed in a reaction mixture comprising cyclohexane and a catalytic amount of a catalyst composition consisting essentially of at least one transition metal complex having the stru
In a process for producing a mixture containing cyclohexanol and cyclohexanone, wherein cyclohexyl hydroperoxide is decomposed in a reaction mixture comprising cyclohexane and a catalytic amount of a catalyst composition consisting essentially of at least one transition metal complex having the structural formula [Figure] the improvement comprising forming a catalyst composition feedstock prior to introducing the catalyst composition to the reaction mixture, wherein said feedstock is a stable dispersion formed by mixing a 1,3-bis(2-pyridylimino)isoindoline ligand having the structural formula [Figure] with a metal salt of formula MX2 or MX3 in a catalyst dispersing liquid selected from the group consisting of (a) cyclohexanol; (b) cyclohexanone; (c) a mixture of cyclohexanol, cyclohexanone, and from 0-50% cyclohexane; and (d) a plant process mixture (SDKA) obtained by steam distillation of cyclohexyl hydroperoxide decomposition reactor product, said mixture consisting essentially of cyclohexanone, cyclohexanol, water, dicylohexyl peroxide, dicyclohexyl ether, and cyclohexyl hydroperoxide; wherein the primary ligand is the entity in brackets; M is Co, Mn or Fe; R1, R2, R3, R5, R6 and, R7 are independently hydrogen, lower alkyl, lower alkoxy, lower alkoxyalkyl, phenyl, benzyl, or phenethyl, or any two adjacent members of R1 through R3 and R6 through R7 can jointly be four CH entities of a benzene ring fused to the pyridine ring; R4 and R8 are hydrogen or methyl; R9, R10, R11 and R12 are independently hydrogen, lower alkyl, lower alkoxy, lower alkoxyalkyl or any two adjacent members or R9 through R12 can jointly be four CH entities of a benzene ring fused to the benzene ring of the isoindoline moiety; X is an ancillary anionic ligand; n is 1 or 2; and p is 0, 1 or 2, provided that n=p is 2 or 3; with the proviso that when there are two primary ligand, the values of R1 through R12 can be different for each ligand and when there are two ancillary anionic ligands, the value of X can be different.
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