Deacidification of Soybean Oil Combining Solvent Extraction and Membrane Technology

Table 1

Experimental results of extraction of FFAs from soybean oil.

Ethanol/oil ratio; (by weight)	% FFAs feed	% FFAs ethanol phase	% FFAs oil phase
Experience 1
1 : 1 (First stage)	1.10	0.58	0.51
1 : 1 (Second stage)	0.51	0.28	0.24
Experience 2
1 : 1 (First stage)	1.17	0.62	0.54
1 : 1 (Second stage)	0.54	0.24	0.36
Experience 3
1.8 : 1 (First stage)	0.98	0.33	0.23
1.8 : 1 (Second stage)	0.23	0.10	0.07
Experience 4
1.8 : 1 (First stage)	0.94	0.38	0.35
1.8 : 1 (Second stage)	0.35	0.11	0.11