Patent ID: 6022993
Filing Date: 2000-02-08
Classification: C01B

Abstract:
A process for producing phosgene, comprising:contacting a mixture comprising CO and Cl.sub.2 at about 300.degree. C. or less with carbon having an active metal content of less than 1000 ppm by weight and weight loss of about 12 percent, or less when heated in air at 125.degree. C. for 30 minutes, followed by heating at 200.degree. C. for 30 minutes, followed by heating at 300.degree. C. for 30 minutes, followed by heating at 350.degree. C. for 45 minutes, followed by heating at 400.degree. C. for 45 minutes, followed by heating at 450.degree. C. for 45 minutes and finally followed by heating at 500.degree. C. for 30 minutes.