- The current process has its disadvantages as it is hazardous to health of living creatures. It produces hazardous gases (hexafluoride) which is 24,000 times more harmful as compared to COx and NOx.
- Current degassing methods use rotary degassing, which uses finely dispersed argon, nitrogen, chlorine, fluorine and other hazardous gases to remove hydrogen gas and various impurities.
- The impeller comprising stator and rotor is dipped into molten metals and the gases are introduced through it to generate bubbles within melt. The rotor shears off the generated bubbles to reduce their size. These bubbles then absorb dissolved Hydrogen and escape from the surface of molten metal.
