Miscella refining

Abstract

Miscella refining can be practiced as a batch process or, preferably, as a continuous process with oil concentrations through the range of 30–70% by wt of oil. Miscella refining is preferably practiced at the oilseed solvent extraction plant for the economic reason of single solvent recovery system. Three immediate benefits are lower refining loss, lighter colored refined oil, and elimination of water washing. Various types of chemical conditioning, mechanical conditioning, and combinations of both are discussed for miscella refining certain oils. Blends of compatible crude oils can be advantageously miscella refined and, if desired, winterized or hydrogenated to produce oils with unique properties.

New approaches in deacidification of edible oils––a review

“…Thus, removal of solvent from miscella must take place in two stages, a preliminary concentration to $50% oil, followed by refining and washing and a final removal of solvent (Anderson, 1996;Hodgson, 1996). This preliminary concentration to desired level is done either by evaporating part of the solvent from a direct extraction operation, or combining prepressed or purchased crude oil with miscella from the extractor (Cavanagh, 1976). …”

Miscella Refining of Isopropanol Extracted Cottonseed Oil

“…After initiation, the reaction was almost instantaneous and produced tiny soap micelles which agglomerated quickly within the first 20 s of caustic addition (Crauer and Penuington 1964). In addition to the reaction between caustic and free fatty acids, hydrolysis and reaction of phosphatides and pigments with caustic required optimum mixing in a homogenizer for about 15 s (Cavanagh 1976). Those phosphatides and gossypol would mix with the agglomerated soap micelles and then be removed by centrifugation.…”

Loss of Label During Processing Cotton Oil Grown with 14 C-Aldicarb

“…The refining process followed the outline flow-chart given in Figure 2 (Cavanagh 1976;Mounts 1981). Necessary equipment was constructed or adapted to simulate the refining process in the laboratory.…”