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US 2021/0130278 A1Published application
A single step process for the oxidation of cyclohexane
AssigneeCouncil of Scientific and Industrial Research
InventorsThirumalaiswamy RAJA, Shatabdi Porel MUKHERJEE, Marimuthu PRABHU, Yogita Manikroa SHIKRE
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Abstract
The present invention disclosed a single step process for the conversion of cyclohexane to adipic acid by using manganese oxide, tungsten oxide or Mn—WOx nano structure having improved yield and selectivity.
Claims8
A single step process for conversion of cyclohexane to adipic acid comprising:
- adding cyclohexane, solvent and catalyst to a reactor followed by charging oxygen with pressure in a range of 0-30 bars at a temperature ranging from 100-125° C. under constant stirring for a period in the range of 5 to 6 hours to afford adipic acid, wherein said catalyst is selected from manganese oxide, tungsten oxide or Mn—WOx nanostructure and the yield of adipic acid is in the range of 20-40%.
A process for the preparation of Mn with Tungsten oxide fish bone catalyst comprising the steps of:
- a) dissolving sodium tungstate dihydrate, manganese (II) sulfate monohydrate and metal sulphates in a suitable solvent at a temperature ranging from 25-30° C.;
- b) adjusting the pH of solution of step (a) upto 0.5 to 5 by constant stirring for 30-50 mins;
- c) heating the solution of step (b) at a temperature ranging from 100-250° C. for a time period ranging from 24-72 hours;
- d) cooling the solution of step (c) upto 25-30° C. to afford Mn with Tungsten oxide fish bone catalyst.
1 more element
Dependencies are inferred from the claim text.