IPC-Stelle: C21B 15/04 [Version 7 (gültig ab 01.2000)]

SymbolTypTitel
CSKCHEMISTRY; METALLURGY
C21USKMETALLURGY
C21KLMETALLURGY OF IRON
C21BUKLMANUFACTURE OF IRON OR STEEL (preliminary treatment of ferrous ores or scrap C22B 1/00; electric heating H05B)
C21B 3/00HGRGeneral features in the manufacture of pig-iron (mixers for pig-iron C21C 1/06)
C21B 3/02UGR1
.by applying additives, e.g. fluxing agents
C21B 3/04UGR1
.Recovery of by-products, e.g. slag
C21B 3/06UGR2
. .Treatment of liquid slag (slag wool C03B; slag stones C04B)
C21B 3/08UGR3
. . .Cooling slag
C21B 3/10UGR3
. . .Slag pots; Slag cars
C21B 5/00HGRMaking pig-iron in the blast furnace
C21B 5/02UGR1
.Making special pig-iron, e.g. by applying additives, e.g. oxides of other metals
C21B 5/04UGR1
.Making slag of special composition
C21B 5/06UGR1
.using top gas in the blast furnace process (in coke ovens C10B)
C21B 7/00HGRBlast furnaces (lifts associated with blast furnaces B66B 9/06)
C21B 7/02UGR1
.Internal forms
C21B 7/04UGR1
.with special refractories (refractory materials C04B)
C21B 7/06UGR2
. .Linings for furnaces
C21B 7/08UGR1
.Top armourings
C21B 7/10UGR1
.Cooling; Devices therefor
C21B 7/12UGR1
.Opening or sealing the tap holes
C21B 7/14UGR1
.Discharging devices, e.g. for slag
C21B 7/16UGR1
.Tuy%$res
C21B 7/18UGR1
.Bell-and-hopper arrangements
C21B 7/20UGR2
. .with appliances for distributing the burden
C21B 7/22UGR1
.Dust arresters
C21B 7/24UGR1
.Test rods or other checking devices
C21B 9/00HGRStoves for heating the blast in blast furnaces
C21B 9/02UGR1
.Brick hot-blast stoves
C21B 9/04UGR2
. .with combustion shaft
C21B 9/06UGR2
. .Linings
C21B 9/08UGR1
.Iron hot-blast stoves
C21B 9/10UGR1
.Other details, e.g. blast mains
C21B 9/12UGR2
. .Hot-blast valves or slides for blast furnaces (valves in general F16K)
C21B 9/14UGR1
.Preheating the combustion air
C21B 9/16UGR1
.Cooling or drying the hot-blast
C21B 11/00HGRMaking pig-iron other than in blast furnaces
C21B 11/02UGR1
.in low shaft furnaces
C21B 11/06UGR1
.in rotary kilns
C21B 11/08UGR1
.in hearth-type furnaces
C21B 11/10UGR1
.in electric furnaces
C21B 13/00HGRMaking spongy iron or liquid steel, by direct processes
C21B 13/02UGR1
.in shaft furnaces
C21B 13/04UGR1
.in retorts
C21B 13/06UGR1
.in multi-storied furnaces
C21B 13/08UGR1
.in rotary furnaces
C21B 13/10UGR1
.in hearth-type furnaces
C21B 13/12UGR1
.in electric furnaces
C21B 13/14UGR1
.Multi-stage processes
C21B 15/00HGROther processes for the manufacture of iron from iron compounds (general methods of reducing to metal C22B 5/00; by electrolysis C25C 1/06)
C21B 15/02UGR1
.Metallothermic processes, e.g. thermit reduction
C21B 15/04UGR1
.from iron carbonyl