Process for the purification of benzaldehyde

Details Process for the purification of benzaldehyde Process for the purification of benzaldehyde

1978-10-18

1980-04-08

Helfin, Bernard

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07C 4524

Patent

active

041972619

ABSTRACT:
Crude benzaldehyde, and especially benzaldehyde prepared by the oxidation of toluene with a gas containing molecular oxygen, will contain certain impurities which will cause unwarranted discoloration and olfactory problems. These impurities can be effectively removed by treating the benzaldehyde with an oxidizing agent and then distillation.

REFERENCES:
patent: 1636854 (1927-07-01), Craver
patent: 2199585 (1940-05-01), Bone et al.
patent: 3423466 (1969-01-01), Guyer, Jr. et al.
Tobolsky et al., Organic Peroxides (1954) p. 37.
Crenne, Chemical Abstracts, vol. 78 (1973) 62040g.
Crenne, Riv. Ital. Essenze, Profumi, Piante Off., Aromi, Saponi, Cosmet., Aerosol (1972) vol. 57(7) pp. 487-492.

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