B01J
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
B01J
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
B01J27/00
Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
B01J27/00
Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
B01J27/02
Sulfur, selenium or tellurium; Compounds thereof
B01J27/02
Sulfur, selenium or tellurium; Compounds thereof
B01J27/047
with chromium, molybdenum, tungsten or polonium
B01J27/047
with chromium, molybdenum, tungsten or polonium