Formaldehyde synthesis

Details Formaldehyde synthesis Formaldehyde synthesis

2011-07-12

2011-07-12

Witherspoon, Sikarl (Department: 1621)

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

Organic compounds

Oxygen containing

C568S475000, C568S490000

Reexamination Certificate

active

07977515

ABSTRACT:
A process is disclosed for the synthesis of formaldehyde from methane starting with the oxychlorination of methane to produce methylene chloride. Hydrolysis of methylene chloride yields the product formaldehyde. Gaseous formaldehyde is condensed for shipment. Byproduct chloroform and carbon tetrachloride are recovered and hydrogenated to provide additional methylene chloride.

REFERENCES:
patent: 7790933 (2010-09-01), Stauffer

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