Relevance of the Physicochemical Properties of Calcined Quail Eggshell (CaO) as a Catalyst for Biodiesel Production

Table 1

Chemical composition (wt.%) of natural quail eggshell and calcined quail eggshell.

Material	Elements (wt.%)
	Ca	P	S	K	Al	Cl	Si	Sr	Σ
Natural quail eggshell	97.71	1.30	0.31	0.19	0.16	0.15	0.13	0.06	100.00
Calcined quail eggshell	99.20	0.54	—	0.11	0.10	—	—	0.05	100.00