Monolithic activated carbon
AssigneeMega-Carbon Company
InventorsKen K. Robinson, Rodney L. Mieville
Life of this patent
Estimating the term…
Abstract
A highly adsorbent, temperature-resistant monolithic activated carbon article is obtained by forming an aqueous emulsion of a polymeric binder, combining the resulting aqueous emulsion with wet, relatively high surface area (>2000 m.sup.2 /g) carbon particles to produce a slip mixture, forming the obtained slip mixture into a shaped structure, and thereafter curing the shaped structure.
Claims16
A microporous, monolithic carbonaceous article exhibiting substantially no loss of compressive strength upon heating to 275.degree. C. and consisting essentially of activated carbon having a surface area in excess of about 2000 m.sup.2 /g and a polymeric binder;
- said polymeric binder being present in an amount up to 13 percent, based on the weight of the article, and said article having an open pore structure, a surface area in excess of 2000 m.sup.2 /g of article, a pore size distribution such that at least 50 percent of total pore volume is constituted by pores less than about 2 nanometers diameter and 80 percent of total pore volume by pores less than about 4 nanometers diameter, and a bulk density of at least about 0.25 grams/cubic centimeter.
A microporous, monolithic carbonaceous structure consisting essentially of active carbon and a water-dispersible high-temperature binder, said structure having an open pore structure, a surface area in excess of 2000 m.sup.2 /g of article, and a bulk density of at least about 0.25 grams/cubic centimeter and, said high-temperature binder being thermally stable up to 275.degree. C. and being present in an amount up to 13 percent, based on the weight of the composition.
Dependencies are inferred from the claim text.