Unlock instant, AI-driven research and patent intelligence for your innovation.

Glyceride interesterification method

A technology for glycerides and triglycerides, which is applied in the field of preparation of fatty acid alkyl esters, and can solve the problems of being expensive and sensitive to water

Inactive Publication Date: 2009-10-14
ROHM & HAAS CO
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the heteropolyacid catalysts are expensive, contain undesired heavy metals such as tungsten, are prone to water sensitivity, and do not pack well to form a catalyst bed in a column

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Example 1. Preparation of neutralized weakly acidic resin, CsOH

[0016] 50g AMBERLITE TM IRC 50 ion exchange resin was slurried in 100 grams of deionized water. AMBERLITE TM IRC-50 ion exchange resin is a weakly acidic macroporous acrylic ion exchange resin. It is a copolymer of methacrylic acid and divinylbenzene. To this slurry was added 83.9 grams of CsOH (50% in water, 1 equivalent to total acid functionality). The resulting mixture was allowed to stir for 1 hour before the column was washed with 5 liters of deionized water to remove any residual salts. The neutralized washed resin was dried in a convection oven at 60-70°C for about 24 hours.

Embodiment 2

[0017] Example 2. Preparation of neutralized weakly acidic resin, Cs 2 CO 3

[0018] 15g AMBERLITE TM IRC 50 ion exchange resin was slurried in 200 grams of deionized water. To this slurry was added 27.4 g of Cs 2 CO 3 (1 equivalent relative to total acid functionality). The resulting mixture was stirred for 1 hour, then the column was washed with 10 liters of deionized water to remove any residual salts, and dried, as described above.

Embodiment 3

[0019] Example 3. Preparation of neutralized weakly acidic resin, LiOH

[0020] 40g IONEX TM 64V resin (methacrylic resin) was slurried in 100 grams of deionized water. To this slurry was added 9.6 grams of LiOH (56% solids, 1 equivalent to total acid functionality). The resulting mixture was allowed to stir for 1-2 hours and then worked up as described above.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle sizeaaaaaaaaaa
Login to View More

Abstract

A method of using C[1]-C[8] aliphatic alcohol to proceed a interesterification to glyceride. The method uses a form of subacidity ion-exchange resin as catalyst. The catalyst contacts with a reaction mixture containing glyceride and C[1]-C[8] aliphatic alcohol.

Description

technical field [0001] The present invention generally relates to a method for transesterifying glycerides, in particular to a method for transesterifying triglycerides and alcohols to prepare fatty acid alkyl esters. Background technique [0002] High fuel prices and environmental concerns are driving the development of alternative fuels, especially those derived from renewable resources. One such fuel, commonly referred to as "biodiesel" fuel, contains alkyl esters (usually methyl esters) of fatty acids and is combusted in diesel engines. Biodiesel fuel is produced by transesterification of triglycerides (such as vegetable oils) with alcohols (usually methanol). Generally, homogeneous basic catalysts (such as alkali metal alkoxides) are used as transesterification catalysts, but these salts must be removed from the reaction product, which increases the difficulty of the purification process. The prior art also discloses heterogeneous catalysts for the transesterification...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C11C3/10
CPCC10L1/026C11C3/003
Inventor R·M·巴那瓦里A·潘蒂西尼A·K·舒尔茨
Owner ROHM & HAAS CO