Ammonia → Isophorone diamine

HRID 1829091Notes

Reaction equation

HRID 1829091 reaction equation
[CH3:1][C:2]1([CH3:12])[CH2:8][C:7]([C:10]#[N:11])([CH3:9])[CH2:6][C:4](=O)[CH2:3]1.[NH3:13].[H][H]>[Co]>[CH3:1][C:2]1([CH3:12])[CH2:8][C:7]([CH2:10][NH2:11])([CH3:9])[CH2:6][CH:4]([NH2:13])[CH2:3]1

Participants

5

Reactant 3

HCID 222AmmoniaHCID 990683-Cyano-3,5,5-trimethylcyclohexanoneHCID 178418361HCID 178418361, compound

Product 1

HCID 17857Isophorone diamine

Reagents, catalysts & solvents 1

HCID 104730CobaltCatalyst2×

Procedure

Isophoronenitrile (130 ml/h), ammonia (600 g/h) and 300 l/h of hydrogen are passed at about 80–100° C. in the upflow mode through the first reactor (imination reactor, 200 ml) charged with γ-Al2O3 as catalyst. The imination occurs here. The reaction mixture is fed into the first reactor (trickle-bed reactor) containing the cobalt catalyst. The temperature there is 90° C. In the third (last) reactor, the after-hydrogenation is carried out at 130° C. in the upflow mode in the presence of the cobalt catalyst. The product mixture is depressurized and cooled and analyzed by gas chromatography.

Workup

  1. customare passed at about 80–100° C. in the upflow mode through the first reactor (imination reactor, 200 ml)
  2. additioncharged with γ-Al2O3 as catalyst
  3. customThe temperature there is 90° C
  4. temperaturecooled

Sources & evidence

ORD record
ord-2646dc53f54548fb99d0435d49d469c4
Source dataset
uspto-grants-2006_06
Patent number
US07060857B2

Reaction notes

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