in combination with chromium, molybdenum or tungsten metal, or compounds thereof

Full Title

Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds > Hydrogenation of the aromatic hydrocarbons > characterised by the catalyst used > containing nickel or cobalt metal, or compounds thereof > in combination with chromium, molybdenum or tungsten metal, or compounds thereof

Classification Context

Section:

CHEMISTRY; METALLURGY

Class:

PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT

Subclass:

CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES