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

Method for distilling citral, chemical additive composition and applications thereof

A technology of chemical auxiliary agent and citral, applied in the field of chemical auxiliary agent composition and distillation of citral, can solve the problems of high equipment requirements and high production cost

Active Publication Date: 2013-03-27
成都建中香料香精有限公司
View PDF3 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the rectification under reduced pressure has greatly improved the purity of the resulting product citral, this method has higher requirements for the equipment used than the common distillation method, and generally requires a higher degree of vacuum and a lower temperature. The citral product with a content of 95% will only be produced at a high temperature; therefore, the vacuum distillation method has higher requirements for equipment and higher production costs to a certain extent.

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for distilling citral, chemical additive composition and applications thereof
  • Method for distilling citral, chemical additive composition and applications thereof
  • Method for distilling citral, chemical additive composition and applications thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Take each material according to the following weight ratio:

[0047] Litsea cubeba oil 1000kg

[0048] Benzoic acid 1kg

[0049] Put the weighed litsea cubeba oil and benzoic acid in a distillation pot, mix and heat up to 100-150°C to distill light components, main fraction citral and rear fraction in sequence, and the obtained citral product is detected by GC / MS , its content is 95.1%.

Embodiment 2

[0051] Take each material according to the following weight ratio:

[0052] Lemongrass Oil 1000kg

[0053] Phenylacetic acid 10kg

[0054] Put the weighed lemongrass oil and phenylacetic acid in a still, mix and heat up to 100-150°C to distill light components, main fraction citral and rear fraction in turn, and the obtained citral product is detected by GC / MS. Its content is 95.7%.

Embodiment 3

[0056] Take each material according to the following weight ratio:

[0057] Lemon Oil 1000kg

[0058] Cinnamic acid 1kg

[0059] Put the weighed lemon oil and cinnamic acid in a distillation pot, mix and heat up to 100-150°C to distill light components, main fraction citral and rear fraction in sequence, and the obtained citral product is detected by GC / MS. The content is 95.0%.

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

No PUM Login to View More

Abstract

The invention discloses a method for distilling chemical engineering spices, the used chemical additive composition and applications thereof, and in particular relates to a method for distilling citral from plant oil, the used chemical additive composition and applications thereof. The method for distilling citral from plant oil comprises the following steps of: mixing the plant oil and a chemical additive according to the weight ratio of 1000:(1-10), distilling the mixture, thereby preparing citral, wherein the chemical additive is selected from at least one of benzoic acid, phenylacetic acid, cinnamic acid, hydrocinnanmic acid or boric acid. The method for distilling citral from the plant oil provided by the invention can improve the content of citral products prepared by a distilling method well, and the requirement of equipment is low by the distilling method, so that the production cost for preparing high-content citral products is lowered.

Description

technical field [0001] The invention relates to a method for distilling chemical spices, a used chemical auxiliary composition and its application, in particular to a method for distilling citral from vegetable oil, the used chemical auxiliary composition and its application. Background technique [0002] Citral, molecular formula C 10 h 16 O, the chemical name is 3,7-dimethyl-2,6-octadiene-1-al; natural citral exists in a variety of vegetable oils, including lemongrass oil, lemon oil, white lemon oil, orange Orange Oil, Litsea Cube Oil, Verbena Oil, which is usually a mixture of two isomers (cis and trans): [0003] [0004] Existing citral is generally prepared by means of separation and purification from natural vegetable oils, and less artificially synthesized. There are currently three methods for separating citral from vegetable oils, namely sodium bisulfite addition method, steam distillation method and vacuum distillation method. [0005] In the sodium bisulfi...

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): C07C47/21C07C45/82
Inventor 马妙玲李良龙曾林久陈冬秀黄宗凉李永红张进廖英
Owner 成都建中香料香精有限公司