CATALYTIC PROCESS OF FORMALDEHYDE REMOVAL FROM AQUEOUS SOLUTIONS Russian patent published in 2015 - IPC C02F1/74 B01J23/50 B82B3/00 B82Y30/00 

Abstract RU 2548093 C2

FIELD: chemistry.

SUBSTANCE: invention relates to a process of formaldehyde removal by catalytic oxidizing which can be used in waste water treatment in petrochemical, medical, chemical and pharmaceutical industries. The process of formaldehyde removal from aqueous solutions at ambient temperature comprises exposing formaldehyde to a catalyst and oxidizing with oxygen. A nanocomposite material comprising silver - high basic anion exchanger in OH--form is used as a catalyst. The oxidation is conducted within 0.5-5 hours.

EFFECT: simple and cost-effective method for removal of up to 60-80% of the initial formaldehyde concentration in aqueous solutions at the temperature of T = 20-25°C and atmospheric pressure.

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RU 2 548 093 C2

Authors

Sakardina Ekaterina Aleksandrovna

Zolotukhina Ekaterina Viktorovna

Kravchenko Tamara Aleksandrovna

Dates

2015-04-10Published

2012-06-25Filed