• How is sunflower crushed for oil recovery?
  • Sunflower is crushed for oil recovery via one of two process methods, hard pressing or prepress solvent extraction. Hard pressing relies upon exerting high pressure on the prepared seed to separate oil from the solids fraction, historically recovering about 25% oil from the seed.
  • What is a prepress solvent extraction method in a sunflower crushing plant?
  • In a typical sunflower crushing plant using the prepress solvent extraction method, the initial steps of seed pre-cleaning and seed drying are located in the seed receiving section of the facility, prior to seed storage.
  • What products does Viterra Hungary sell?
  • Viterra Hungary markets, and in its Fokt? plant produces, sunflower seed, rapeseed and soybean oil, which are primarily sold to the feed and biodiesel industries and, after refining, to the edible oil industry.
  • Why is prepress solvent extraction better than sunflower meal?
  • Because sunflower oil has a substantially higher economic value than sunflower meal, process economics improve significantly as the oil recovery yield increases. Therefore, prepress solvent extraction, with the highest oil recovery yield, is the process method utilized today for the majority of the sunflower seed that is crushed globally.
  • How does a sunflower extractor recover the solvent pumped to the extractor?
  • The solvent evaporated from the sunflower meal and the miscella are both recovered in the solvent recovery system within the solvent extraction process area. A typical sunflower plant will recover 99.8¨C99.9% of the solvent pumped to the extractor.
  • How does a heat extruder work?
  • A heat extruder aids in breaking down oilseeds for the most efficient oil recovery possible. The heat treatment in the extruder deactivates the trypsin inhibitor and urease enzymes, which are detrimental to the meal if not properly destroyed. The oilseeds processed with this extruder are low-oil content seeds (less than 25% oil).