Table 4.

Hexane losses in the oilseed crushing industry.

Sources of Hexane Losses	Percentage of Total Losses	Kg Hexane Lost per Ton of Seeds
Meals	30–60%	0.05–0.3
Crude oil	2–6%	0.02–0.05
Exhaust from mineral oil system and drying/cooling vents	5–20%	0.05–0.15
Fugitive losses and losses from start-ups and shutdowns	14–63% a	0.1–0.5
Wastewater	Negligible	Negligible

^a Calculated as a balance of previous losses.