Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Synthetic method for isopropyl palmitate

A technology of isopropyl palmitate and a synthesis method, applied in the field of synthesis of ester compounds in organic chemistry, can solve problems such as unfavorable clean production, many side reactions, complicated operation control, etc., avoid toxicity and chemical corrosion, reduce Investment and operation difficulty, the effect of shortening the process flow

Active Publication Date: 2015-12-09
安徽大松树脂有限公司
View PDF4 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the existence of SO 2 , HCl, H 2 SO 4 and other chemical substances, the above-mentioned method has strong toxicity and chemical corrosion, and the leak-proof and anti-corrosion requirements of the whole system are extremely strict, and there are complex production processes, large one-time investment, cumbersome operation control; high production cost, poor selectivity, side effects There are many shortcomings such as many reactions, poor product quality, and unfavorable clean production.

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

[0022] A kind of synthetic method of isopropyl palmitate of the present embodiment utilizes the high-purity methyl palmitate that obtains through fractionation process in the biodiesel production process as the raw material of producing high-quality isopropyl palmitate. The mass percent concentration of the high-purity methyl palmitate is 99.5%. From the biodiesel production process, the fractionation process for obtaining high-purity methyl palmitate can be found in Patent No. CN200610112322.0. The synthetic mechanism of isopropyl palmitate is:

[0023] Methyl palmitate and isopropanol react in the presence of a catalyst to generate isopropyl palmitate, and the reaction equation is as follows:

[0024] RCOOCH 3 +(CH 3 ) 2 CHOH→RCOOCH(CH 3 ) 2 +CH 3 Oh

[0025] The concrete process of present embodiment synthetic isopropyl palmitate is as follows:

[0026] Mix high-purity methyl palmitate and isopropanol in a molar ratio of 1:4 in the pipeline mixer and then enter the...

Embodiment 2

[0028] Mix the high-purity methyl palmitate and isopropanol with a mass percentage concentration of 99.6% and isopropanol in a molar ratio of 1:3 in the pipeline mixer and then enter the reaction heater. After heating to 80°C, enter the tower reaction The transesterification reaction is carried out in the reactor, and the catalyst attached to the tower reactor is a supported solid acid---SO 4 2- / ZrO 2 , control the reaction pressure in the tower reactor to 0.35MPa, the CH generated in the reaction process 3After the OH is vaporized, it enters the methanol condenser for condensation and finally enters the mixed alcohol separation tower for separation. After the reaction, the reaction mixture enters the isopropyl ester dealcoholization tower to remove excess isopropanol and unvaporized methanol generated during the reaction. The material in the tower is the product of isopropyl palmitate, which is cooled by a heat exchanger and used as palmitic acid Isopropyl ester finished ...

Embodiment 3

[0030] Mix high-purity methyl palmitate and isopropanol with a mass percentage concentration of 99.55% and isopropanol in a molar ratio of 1:5 in a pipeline mixer, then enter the reaction heater, heat to 85°C and enter the tank reaction The reactor is used for transesterification reaction, and the catalyst attached to the tank reactor is a supported solid acid---SO 4 2- / TiO 2 +ZrO 2 , control the reaction pressure in the tank reactor to 0.15MPa, the CH generated during the reaction 3 After the OH is vaporized, it enters the methanol condenser for condensation and finally enters the mixed alcohol separation tower for separation. After the reaction, the reaction mixture enters the isopropyl ester dealcoholization tower to remove excess isopropanol and unvaporized methanol generated during the reaction. The material in the tower is the product of isopropyl palmitate, which is cooled by a heat exchanger and used as palmitic acid Isopropyl ester finished product output. The t...

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 synthetic method for isopropyl palmitate, and belongs to the technical field of synthesizing ester compounds in organic chemistry. The synthetic method includes the steps that methyl palmitate and isopropanol are mixed in a pipeline mixer according to a certain ratio, enter a flow reactor which a catalyst adheres to after being mixed evenly and heated to certain temperature, and are controlled to perform transesterification at certain pressure, and reaction product methanol is continuously separated at the same time. The reaction mixture enters an isopropyl ester dealcoholizing tower, the redundant isopropanol and methanol which is generated in the reaction process and not removed are removed at certain pressure and temperature, and the kettle material is cooled through a heat exchanger and then output as an isopropyl palmitate finished product. The high-purity methyl palmitate obtained through a fractionation technology in the process of producing biodiesel is used as a raw material, the reaction product methanol is continuously removed through a continuous catalytic reaction, the technological flow path is shortened, process energy consumption and raw material consumption are reduced, the yield of the isopropyl palmitate is increased, and the product quality of the isopropyl palmitate is improved.

Description

technical field [0001] The invention relates to a derivative product of biodiesel, which belongs to the technical field of synthesis of ester compounds in organic chemistry; more specifically, it relates to a synthesis method of isopropyl palmitate. Background technique [0002] Biodiesel was born in Germany in 1988, and my country began to produce biodiesel in 2001. Biodiesel is a fatty acid monoalkyl ester obtained by transesterification of animal and vegetable oils and alcohols. The most typical biodiesel is fatty acid methyl ester. Due to its superior environmental performance, biodiesel has become a hot spot in the development of new energy sources worldwide. The vast majority of biodiesel is used as fuel, but biodiesel is also a good chemical intermediate. The development of its derivatives will also become the only way for all enterprises to develop rapidly in the future. After the sustainable development of energy has become the basis of national strategic securit...

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
IPC IPC(8): C07C69/24C07C67/03
CPCC07C67/03C07C69/24Y02E50/10
Inventor 沈建平白仲兰张宇陈俊
Owner 安徽大松树脂有限公司
Features
  • Generate Ideas
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com