Process for producing aromatic aldehydes

Details Process for producing aromatic aldehydes Process for producing aromatic aldehydes

1981-07-13

1983-08-16

Helfin, Bernard

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

423 94, C07C 4542, C07C 4543

Patent

active

043993117

ABSTRACT:
In a process for producing aromatic aldehydes by reacting chlorinated methylbenzenes with nitric acid, the improvement wherein a lead compound is added to the residue left after separation and recovery of the resulting aromatic aldehydes from the reaction mixture thereby to remove a chlorine ion present in the residue as a precipitate of lead chloride, and the residue left after removal of the lead chloride is recycled to the reaction of the chlorinated methylbenzenes with nitric acid.

REFERENCES:
patent: 4335263 (1982-06-01), Minai

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