METHOD FOR THE REMOVAL OF NON-METAL AND METALLOID HYDRIDES

摘要

A method is provided for the removal of metalloid and non-metal hydrides fro m gas or liquid media. The improvement is provided by the use of a high-temperature carbonaceous char derived from a carbonaceo us feedstock which has been exposed to nitrogen containing compounds at temperatures above 700 .degree.C. In the preferred embodiment o f the method, the high-temperature carbonaceous char is prepared by carbonizing and oxidizing a bituminous coal at temperatures less than 700 .degree.C followed by exposure to urea, ammonia, or nitrogen-containing compound as the temperature is raised to above 700 .degree.C.