Isononyl aldehyde

The aldehydes commercially produced this way are many. One of the most important is n-butyraldehyde. Isononyl aldehyde is also an important intermediate. As shown by reactions 5.2 and 5.3, propylene is hydroformylated to n-butyraldehyde which is then converted by aldol condensation and hydrogenation to 2-ethyl hexanol. 

Mitshubishi Isononyl aldehyde for isononyl Rhodium catalyst with triphenyl phosphine... 

In UCC s low-pressure and Mitsubishi Kasei oxo processes the reaction products (isononyl aldehyde, etc.) are separated by distillation from the catalyst phase. As already mentioned, in the Ruhrchemie/Rhone-Poulenc s hydrofor-mylation process, the aqueous phase containing the catalyst is removed after the reaction from the organic phase by decantation. Also in this process, the heat from the oxo reaction is recovered in a falling film evaporator incorporated inside the reactor, which acts a reboiler for the /i- butanal/isobutana I distillation column. 

Trimethylhexadecylammonium bromide. See Cetrimonium bromide 3,5,5-Trimethylhexaldehyde. See Isononyl aldehyde... 

Diethylaminopropylamine Tris [1-(2-methyl-aziridinyl) phosphine oxide] raw material, rubber Sunflower (Helianthus annuus) seed oil raw material, rubber additives Isononyl aldehyde... 

Cyclohexylpropanol Diisobutyl ketone Isononyl aldehyde 2-Methyloctanal Nonanal 2-Nonanone cls-6-Nonen-1-ol trans-2-Nonen-1-ol Trimethylcyclohexanol C9H18O2 Amyl butyrate Amyl isobutyrate n-Butyl isovalerate N-Butyl-2-methylbutyrate Butyl valerate Ethyl heptanoate Heptyl acetate... 

Mitsubishi Kasei introduced a process to manufacture isononyl alcohol, an important PVC (polyvinyl chloride) plasticizer, via the hydroformylation of octenes (a mixture of isomers produced by dimerization of the C4 cut of naphtha cracker or FCC processes).95 First a nonmodified rhodium complex exhibiting high activity and selectivity in the formation of the branched aldehyde is used. After the oxo reaction, before separation of the catalyst, triphenylphosphine is added to the reaction mixture and the recovered rhodium-triphenylphosphine is oxidized under controlled conditions. The resulting rhodium-triphenylphosphine oxide with an activity and selectivity similar to those of the original complex, is recycled and used again to produce isononanal. 

---