Process for purifying melamine-containing ammonia

Details Process for purifying melamine-containing ammonia Process for purifying melamine-containing ammonia

2005-03-22

2005-03-22

Balasubramanian, Venkataraman (Department: 1624)

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

Organic compounds

Four or more ring nitrogens in the bicyclo ring system

C544S203000

Reexamination Certificate

active

06870051

ABSTRACT:
A process for purifying gaseous melamine containing ammonia is provided. The method comprises partly condensing the gaseous melamine-containing ammonia to form melamine in liquid NH3and purified NH3gas. The melamine and purified NH3gas are taken off.

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International Search Report of PCT/EP01/12691, dated Mar. 8, 2002.
International Preliminary Examination Report of PCT/EP01/12691, dated Apr. 12, 2002.

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