Table 6.

Results of phosphogypsum heat treatment with different reducing agent contents at different temperatures.

Reducing Agent Mass, g	Reducing Agent Mole Fraction, %	Relative Luminous Flux (Rel. Units) at Treatment Temperature
		1073 К	1173 К	1273 К
1.10	6.40	0.24	0.10	0.10
2.10	12.21	0.39	0.12	0.10
4.30	25.00	0.86	0.35	0.15
6.40	37.21	0.93	0.75	0.15
8.50	49.42	0.91	0.90	0.15
10.70	62.21	0.90	0.88	0.10
12.80	74.42	0.84	0.80	0.26
17.10	99.42	0.63	0.60	0.21