Part B. MIXED USES
These mixed uses are the only ones that involve relevant commodities being used partly as fuel and partly not, but which are specified as being uses that are not to be taken as being uses of those commodities as fuel (see paragraph 18(3) of the Act).
Coal, coke and natural gas as chemical reductants for ironmaking, for example, in blast furnaces
Coal, coke and natural gas as chemical reductants in the blast furnace production of zinc and other non-ferrous metals
Coal and coke in the recarburising of iron and steel
Coke breeze in a sinter plant to assist in the agglomeration of iron ore and its subsequent chemical reduction in blast furnaces
Coke injected into electric arc furnaces to control the chemistry of the steel and the steelmaking slag
Coke charged to electric arc furnaces to control the oxygen activity of the steel melt
Coke as a carburiser in iron casting
Coke as a source of carbon dioxide in the Ammonia Soda process for producing soda ash
Anthracite as a reductant in the smelting of precious metals
Gas for vacuum reduction in metal powder production and to maintain carbon content in metal during the sintering process
Gas to maintain or increase the carbon content of metals during heat treatment
Natural gas as a reductant in emission control systems, for example, in the reduction of oxides of nitrogen
Natural gas in the manufacture of methocrylate monomers and polymers including that natural gas used for emission control which is an integral and essential part of the manufacturing process
Natural gas as feedstock in the production of carbon black
Natural gas as feedstock in a gas generator supplying a reducing atmosphere for the treatment or annealing of metal products
Liquid propane in the production of ethylene where heat is provided either by combustion of the waste products or from another source
Commodities in reduction furnaces for the production of lead
Commodities in the reduction of chlorine
Commodities to form reducing atmospheres, for example, in the refining and manipulation of molten copper to control oxygen levels
Commodities in ASARCO (American Smelting and Refining Company) shaft furnaces, the deoxidisation of copper swarf and the annealing of copper and copper alloys to provide a reducing atmosphere