50-3000 t/d soybean oil seed pre-treatment, pre-pressing, extraction, refining processing line. Business Scope 1. 50 ... treatment and pre-pressing, extraction, refining, oil materials including cotton seed, sunflower seed, rape seed, soybean, palm, peanuts rice ... wild oil plants.8. Waste water treatment techniques in vegetable oil mills.. Soybean seed/oil pretreatment, pressing/extraction and refining ...