Abstract
Equilibrium of phosphorus-carbon-oxygen in liquid iron in contact with a mixture of solid calcium phosphate and calcium oxide was studied in a controlled gas atomosphere of CO-CO2 gas mixture in the range of 0.03-1.2% of phosphorus in liquid iron at 1530.., 1560.., and 1585... It was found that the stable phase of calcium phosphate was of tetracalcium phosphate, 4CaO.P205, at the presence of free lime in this experiments.
The results obtained were summerized as follows: (1)
(1b)
(1c)
(2)
(2b)
(2c)
(3)
(3b)
(3c)
