6PPD production

Condensation of aniline with p-nitrochlorobenzene produces 4-nitrodiphenyl-amine (PNDPA), an important intermediate in the production of antioxidants. Reductive N-alkylation of PNDPA gives anti-ageing materials for rubber, the most important of which are IPPD and 6PPD. 

ADPA is an important intermediate in the more efficient process for 6PPD antiozo-nant production. 

Aniline can react with hydrogen chloride to form an aniline hydrochloride intermediate that is used to produce diphenylamine, the base feedstock for production of ADPA, octylated diphenylamine, 6PPD, and DOPD antidegradant used by the rubber industry. These are some of the highest volume AOs used by the rubber industry. 

Aniline hydrochloride is directly used to produce diphenylamine, a very important feedstock in the production of 6PPD antiozonant, octylated diphenylamine antioxidant, and ADPA AO, all produced for rubber use. 

Butane is also oxidized to acetone, which is used to make TMQ antioxidant, ADPA antioxidant, and mesityl oxide for production of MIBK to produce 6PPD antiozonant... 

Cumene is oxidized to acetone, which is converted to mesityi oxide that is used to make MIBK, which is needed in the production of 6PPD, the highest voiume antiozo-nant used by the rubber industry. 

Diphenylamine is a very important feedstock in the production of 6PPD antiozonant. Nonrubber Uses... 

About 10% of all MIBK production goes to synthesize rubber chemicals. MIBK is used in the synthesis of 6PPD, the largest volume antiozonant made. 

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