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PlasmaChemistry in REC PLASMA
BorodinValentin
1. PLASMA EXPEDIENT OF REDUCTION OF MAGNETITE CONCENTRATES BY WOOD WASTES
In some wood regions and, in particular, in Kareliya there was a following situation: on the one hand there are stocks of ore raw materials, on the other hand are annually formed hundred thousand tons of organic wastes of a timber industry complex, which pollute a surrounding medium. However these wastes can be utilised as reduction raw materials for an iron and steel industry. Therefore urgent the mining of technology allowing to solve simultaneous two problems is: to utillize organic wastes of manufactures of a timber industry complex and to manufacture mineral raw materials with reception of metals. The metallurgy is manufacture with major energy consumptions, and the level of power inputs defines prospects of this or that metallurgical technology for practical embodying.
Table 1 Relation of expenses of the electric power and dry wood on reduction of 1 kg of iron from a magnetite concentrate (67%Fe)
with dry blast at 100 % reduction
Mass of wood on 1 kg Fe
(kg)
Mass of wood on 1
kg of a concentrate
(kg)
The contents of air (in mass % to wood)
A relation of masses of a concentrate and wood
External power inputs
(electric power)
(kW/kg Fe)
0,50 0,33 0 3,0 1,1
0,68 0,45 25 2,2 0,8
0,84 0,56 67 1,8 0,7
1,07 0,71 100 1,4 0,5
1,16 0,77 122 1,3 0,3
1,50 1,00 150 1,0 0
2,10 1,40 186 0,7 -1,1
Fig. 2 Schemas of laboratory technological setting for reduction of magnetite concentrates by wood wastes.
MagnetiteConcentrates
WoodWastes
MeltingGasifi-cator
Gases
The air engine
PlasmageneratorAir
pyrolysisgas
air
cast iron
slag
plasmatron
reactor
iron ore and wood waste
Plasma Chemistry
technologyapplicationto extractivemetallurgywith usingwood waste
2. PLASMA PROCESSING OF WATER
Now there is a problem of a decontamination and clearing of water. A serious problem is the replacement of chlorination of water by other methods of a decontamination. It is revealed, that at chlorination of water there is a formation of chloric organic compounds, which have cancerogenic properties. The given problem is sharp enough stands for wood regions, the water in which contains especially many organic impurities. One of the most effective expedients of destruction of organic impurities, is the plasma processing of water. Thus theoretical and experimental research have shown, that in water plasma of electric discharge the appreciable quantity of fissile particles is formed, as well as at radiative action. Primary products will be fissile radicals H, OH, H2O2, O2, e-hydrate, and
also various ions. The research have shown, that the above-stated fissile radicals best are formed in nonequilibrium plasma of a glow discharge.
electrodes
reactor
cuttingwater
original water
glowdischarge
Experimentalinstallation
forthe glow discharge
disinfectionprocessing
ofwater