Distillation: processes – separatory – With chemical reaction – Including step of adding catalyst or reacting material
Patent
1982-01-20
1983-04-05
Sever, Frank
Distillation: processes, separatory
With chemical reaction
Including step of adding catalyst or reacting material
203 32, 568433, 568438, B01D 334
Patent
active
043790267
ABSTRACT:
A process for the purification in the presence of water of impure benzaldehyde by which a purified benzaldehyde is prepared which has improved color stability and improved olfactory characteristics. The process is comprised of the steps of treating the impure benzaldehyde simultaneously with water and a metal less noble than hydrogen followed by distillation.
REFERENCES:
patent: 1935914 (1933-11-01), Olson
patent: 2544562 (1951-03-01), Michael
Sever Frank
Stamicarbon B.V.
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