摘要:
It is intended to provide a method for efficiently producing a diacylglycerol-rich fat and/or oil that has a low content of trans-unsaturated fatty acids and has a good color and a good flavor characteristic to diacylglycerols. A method for producing a diacylglycerol-rich fat and/or oil, by hydrolyzing a raw fat and/or oil by an enzymatic splitting method, and subjecting the fatty acids and glycerin obtained thereby to an esterification reaction, wherein a raw fat and/or oil containing undeodorized fat and/or oil in an amount of 50% by weight or more is used, and a deodorization treatment is carried out after the esterification reaction, to the extent that the relationship between the deodorization time (x) and the deodorization temperature (y) satisfies the following conditions (i) and (ii): (i) y ‰¥ -2.59x + 566 (ii) y ‰¤ 617x -0.0455 (provided that 475 ‰¤ y ‰¤ 563) wherein x represents the deodorization time (minutes), and y represents the deodorization temperature (K).
摘要:
The invention relates to a process for alkaline hydrolysis of carboxylic acid derivatives, especially carboxylic esters, to carboxylic acids, wherein, for the alkaline hydrolysis of the carboxylic acid derivatives, red mud which is produced by the Bayer process used for aluminum production is used as a reaction-promoting component, especially as a hydroxide ion source.
摘要:
The invention relates to a process for alkaline hydrolysis of carboxylic acid derivatives, especially carboxylic esters, to carboxylic acids, wherein, for the alkaline hydrolysis of the carboxylic acid derivatives, red mud which is produced by the Bayer process used for aluminum production is used as a reaction-promoting component, especially as a hydroxide ion source.
摘要:
The present invention is concerned with a new method of processing lipid materials, such as triglycerides and waxes, which process involves contacting such lipid materials with a reactive granulate in the presence of a gas in near supercritical state. More particularly the present invention relates to a method of processing lipid material comprising the steps of
a) dissolving into the lipid material from 5-95 wt.% of a gas selected from the group consisting of carbon dioxide, ethane, propane, or nitrous oxide and mixtures thereof, at a temperature and a pressure at which the gas per se would be near its supercritical state, b) contacting the lipid material containing the dissolved gas with a reactive granulate, c) separating the granulate from the lipid material and d) allowing the gas to evaporate from the lipid material by reducing the pressure.
The reactive granulate employed in the present process may suitably be a catalyst, such as bleaching earth or hydrogenation catalyst, or an adsorbent, such as active carbon.
摘要:
An effective process for producing fatty acids catalysed by double metal cyanide complex or a supported group VIb transition metal oxide, wherein the catalyst is stable and reusable.
摘要:
Provided is a device for producing ultra-low sulfur biodiesel. The device for producing ultra-low sulfur biodiesel is a two-stage processing device, comprising a two-stage purification unit, a two-stage enzyme reaction unit, a two-stage distillation unit, and a decompression rectification unit. The present invention is green and environment-friendly, effectively and completely removing sulfur-containing impurities from the raw material, eliminating the attack of a sulfur-containing group in the synthesis process on fatty acids, and providing sufficient conditions for obtaining ultra-low sulfur content methyl esters in the product section.
摘要:
It is intended to provide a method for efficiently producing a diacylglycerol-rich fat and/or oil that has a low content of trans-unsaturated fatty acids and has a good color and a good flavor characteristic to diacylglycerols. A method for producing a diacylglycerol-rich fat and/or oil, by hydrolyzing a raw fat and/or oil by an enzymatic splitting method, and subjecting the fatty acids and glycerin obtained thereby to an esterification reaction, wherein a raw fat and/or oil containing undeodorized fat and/or oil in an amount of 50% by weight or more is used, and a deodorization treatment is carried out after the esterification reaction, to the extent that the relationship between the deodorization time (x) and the deodorization temperature (y) satisfies the following conditions (i) and (ii): (i) y ≥ -2.59x + 566 (ii) y ≤ 617x -0.0455 (provided that 475 ≤ y ≤ 563)
wherein x represents the deodorization time (minutes), and y represents the deodorization temperature (K).