Abstract: The present invention relates to a new process for obtaining fatty acids with improved color, odor and heat stability which is characterized in that: (a) in a first step the crude acids are fed to a rectification (“precut”) column in order to remove low boiling by-products being present in the starting material as a top fraction, and (b) in a second step the bottom fraction of the precut column is fed to a sidestream column in order to obtain the pure fatty acids as the side fraction, to remove low boiling by-products which have been formed in the course of the first distillation as a top fraction and to remove high boiling by-products, either being present from the starting material or formed during the first distillation, with the residue.

Abstract: The invention relates to a process for working up fatty compounds from esterification and transesterification reactions, wherein, the fatty compounds are contacted with ion exchangers to remove unwanted constituents.

Abstract: A process for making technical oleic acid methyl esters having a stearic acid methyl ester content of less than about 2% by weight, and a palmitic acid methyl ester content of less than about 5%, comprising: (a) providing a C8-18 palm kernel oil fatty acid methyl ester; (b) fractionally distilling said C8-18 palm kernel oil fatty acid methyl ester to form a C8-14 head product and a C16-18 bottom product; (c) fractionally distilling the C16-18 bottom product to form a short-chain C16 head product and a long-chain and unsaturated C18 bottom product; (d) fractionally distilling the long-chain and unsaturated C18 bottom product to form a predominantly unsaturated head product having a high palmitic acid methyl ester content and a predominantly unsaturated bottom product have a minimal palmitic acid methyl ester content; and (e) fractionally distilling the predominantly unsaturated bottom product have a minimal palmitic acid methyl ester content to form a head product rich in oleic acid methyl ester and poor in st

Abstract: The invention is an apparatus and process for batch rectification or reaction with batch distillation. The apparatus is a rectifying column alone or mounted on a batch reactor. The rectifying column having a collector for the downflowing column liquid arranged to collect liquid flowing down the column and a valve arrangement to direct the flow selectively away from the column or to the column at a time when downflowing product is being removed from the column. The column is operated at total reflux until the product reaches a required purity then the liquid flow from the collector is directed away from the column and the product recovered.

Abstract: Disclosed is a new process for obtaining fatty acids with improved color, odor and heat stability which is characterized in that (a) in a first step the crude acids are fed to a rectification (“precut”) column in order to remove low boiling by-products being present in the starting material as a top fraction, and (b) in a second step the bottom fraction of the precut column is fed to a sidestream column in order to obtain the pure fatty acids as the side fraction, to remove low boiling by-products which have been formed in the course of the first distillation as a top fraction and to remove high boiling by-products, either being present from the starting material or formed during the first distillation, with the residue.

Abstract: A process for making technical oleic acid methyl esters having a stearic acid methyl ester content of less than about 2% by weight, and a palmitic acid methyl ester content of less than about 5%, comprising: (a) providing a C8-18 palm kernel oil fatty acid methyl ester; (b) fractionally distilling said C8-18 palm kernel oil fatty acid methyl ester to form a C8-14 head product and a C16-18 bottom product; (c) fractionally distilling the C16-18 bottom product to form a short-chain C16 head product and a long-chain and unsaturated C18 bottom product; (d) fractionally distilling the long-chain and unsaturated C18 bottom product to form a predominantly unsaturated head product having a high palmitic acid methyl ester content and a predominantly unsaturated bottom product have a minimal palmitic acid methyl ester content; and (e) fractionally distilling the predominantly unsaturated bottom product have a minimal palmitic acid methyl ester content to form a head product rich in oleic acid methyl ester and poor in st