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