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1. WO1992016487 - PROCESS FOR PREPARING AN ALKANONE AND/OR ALKANOL

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[ EN ]

C L A I M S

1. Process for preparing an alkanone and/or alkanol
comprising mixture in a solvent by a decomposition of an alkyl hydroperoxide which is present in an
alkylhydroperoxde comprising mixture in a solvent in the presence of a metal compound immobilized on a carrier, the process being characterized in that the carrier
carries aliphatic or aromatic amine groups or sulphide groups .
2. Process according to claim 1, characterized in that the carrier has groups with the following structure.

R1 - Y - R2



where the substrate is silica, alumina, titanate
n: 0, 1, 2 and m: 0, 1, 2 where n + m = 2
X: Si, Ti, Zr
R: H or C1_12 alkyl or alkoxy
Rl : cι-i8 alkyl, aryl, alkaryl
Y: S or NR3
R2 , R3 : H, Ci-Cjj alkyl, R4^Z-R5 where
R4 = C2-C12 alkyl
Z = NR6 or S
R5, R6 = H, or Cj-C6 alkyl
where R1 may contain ether groups and R2 , R3 , R4 , R5 and

R6 may additionally contain 1 or 2 ether, alcohol or
carboxyl groups .
3. Process according to any one of claims 1-2,
characterized in that the substrate is silica.
4. Process according to any one of claims 2-3,
characterized in that X is Si.

5. Process according to any one of claims 2-4,
characterized in that R1 is C2-C6 alkyl.
6. Process according to any one of claims 2-5,
characterized in that Y and optionally Z are nitrogen atoms .
7. Process according to any one of claims 2-6,
characterized in that R2 is H, or R4 -NH4 , where R4 is C2-C3 alkyl.
8. Process according to any one of claims 2-6,
characterized in that R3 is H.
9. Process according to any one of claims 1-8,
characterized in that the metal compound used is a complex or salt of a metal from the fourth period of groups IB, IVB, VB, VIB, VIIB or VIII of the periodic system.
10. Process according to claim 9, characterized in that the metal compound used comprises a complex or salt of a metal from the group cobalt, chromium, vanadium,
molybdenum, ruthenium, titanium, manganese and iron and mixtures thereof.
11. Process according to claims 1-10, characterized in that, for complexing the metal compound to the carrier
carrying amine groups or sulphide groups, a metal salt or complex is used which is soluble in the dispersant used for disperging the carrier.
12. Process for preparing an alkanone and/or alkanol by oxidizing an alkane with 3-30 C-atoms, using oxygen, to form an alkyl hydroperoxide, followed by a decomposition of the resulting alkyl hydroperoxide in the presence of a metal compound immobilized on a carrier, the process being characterized in that the carrier carries
aliphatic or aromatic amine groups or sulphide groups. 13. Process as described in substance in the specification and/or examples.