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Method for producing fatty acid alkyl esters and/or glycerin

A technology of fatty acid alkyl ester and production method, which is applied in the directions of fatty acid esterification, organic chemical method, ester group and hydroxyl reaction preparation, etc., can solve the problems of shortened catalyst life, complicated separation and purification steps, leaching of metal components, etc.

Inactive Publication Date: 2008-02-20
NIPPON SHOKUBAI CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the catalyst is used in a reaction mixture containing free fatty acid or water, since fatty acid salt is produced as a by-product and the reaction is repeated, the result is leaching of metal components
Therefore, the separation and purification steps become complicated and the life of the catalyst is shortened
Therefore, there is still room for catalyst improvement

Method used

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  • Method for producing fatty acid alkyl esters and/or glycerin
  • Method for producing fatty acid alkyl esters and/or glycerin
  • Method for producing fatty acid alkyl esters and/or glycerin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0140]The present invention will be described in more detail below with reference to Examples, but the present invention is not limited to these Examples.

[0141] Conversion and yield were calculated according to the following formula.

[0142] (Conversion rate (%))=(the mole number of fat or oil consumed when the reaction is completed) / (feeding mole number of fat or oil)×100(%)

[0143] (the productive rate of methyl ester (mol%))={(the molar number of the methyl ester that makes when reaction completes) / (feeding molar number of effective fatty acid)}×100(%)

[0144] (the productive rate of diglyceride (mol%))={[(the mole number of diglyceride produced when the reaction is completed)×2] / (the feed mole number of effective fatty acid)}×100(%)

[0145] (the productive rate (mol%) of monoglyceride)={(the mole number of monoglyceride when the reaction is completed) / (feeding mole number of effective fatty acid)}×100(%)

[0146] (the productive rate of glycerol (mol %))={(the mol...

preparation example 1

[0150] Catalyst preparation example 1: MnTiO 3 Catalyst preparation

[0151] 200g manganese carbonate (MnCO 3 ) and 150g anatase titanium dioxide (TiO 2 ) were mixed in powder form, and the mixture was calcined at 1000° C. for 5 hours in an air stream to obtain 273 g of MnTiO 3 catalyst. XRD analysis of the catalyst showed that the catalyst has an ilmenite structure and contains a small amount of rutile TiO 2 .

preparation example 2

[0152] Catalyst preparation example 2: ZnTiO 3 Preparation of (Anatase) Catalyst

[0153] 20g of zinc oxide (ZnO) and 20g of anatase titanium dioxide (TiO 2 ) mixed in powder form. The mixture was calcined at 700 °C for 4 hours in air flow to obtain ZnTiO 3 catalyst. XRD analysis of the catalyst shows that the catalyst is ZnTiO with ilmenite structure 3 .

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Abstract

To provide: a production method using a catalyst which can substantially suppress leaching of active metal components and exhibit high activity for both reactions of transesterification of glycerides and esterification of free fatty acids each contained in a fat or oil; and the catalyst. A method for producing fatty acid alkyl esters and / or glycerin comprising a step of bringing a fat or oil into contact with an alcohol in the presence of a catalyst, wherein the catalyst is at least one catalyst selected from the group consisting of the following (I) to (V): (I) a metal oxide having an ilmenite structure and / or a slyrankite structure; (II) an oxide containing a metallic element belonging to the Group 12 and a metallic element belonging to the Group 4; (III) a mixed oxide containing a metallic element belonging to the Group 12 and a tetravalent transition metallic element; (IV) a metal oxide containing zirconium and at least one metallic element selected from the group consisting of metallic elements belonging to the Groups 4, 5 and 8; and (V) a metal oxide containing anatase type titanium oxide and / or rutile type titanium oxide, and the metal oxide containing a sulfur component of 700 ppm or less.

Description

technical field [0001] The present invention relates to a process for the manufacture of fatty acid alkyl esters and / or glycerol from fats or oils of animal or vegetable origin. More specifically, the present invention relates to a method for the production of fatty acid alkyl esters and / or glycerin for fuel, food, cosmetic and pharmaceutical purposes; and a catalyst for the method. Background technique [0002] Fatty acid alkyl esters derived from vegetable fats and oils can be used as edible oils, and in addition, they can also be used in fields such as cosmetics and pharmaceuticals. Their use as additives to fuels such as fossil diesel has attracted attention in recent years. For example, fatty acid alkyl esters are added to light oil in an amount of a few percent as a method for reducing CO 2 Emissions of plant-derived biodiesel fuel. Glycerin is mainly used as a raw material for nitroglycerin and may further be used as a raw material for alkyd resins, or for pharmace...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11C3/10C07C69/58C07C67/03C07B61/00
Inventor 奥智治森口敏光赤塚威夫野野口真则
Owner NIPPON SHOKUBAI CO LTD
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