C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
260/248.4
C07D 251/32 (2006.01)
Patent
CA 1158645
Abstract: PURIFICATION OF CYANURIC ACID Cyanuric acid is mechanically separated such as by filtration, centrifugation, or centrifugal fil- tration from a slurry of cyanuric acid, urea, biuret, and an inert solvent in which the urea is soluble at temperatures above about 170°C to reduce the urea con- tent of the recovered solid cyanuric acid. The biuret and solvent content of the solid cyanuric acid is also reduced.
372609
Guiliano Basil A.
Kurtz Andrew D.
Pfeffer Henry A.
Fmc Corporation
Osler Hoskin & Harcourt Llp
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