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Cardanol polyoxyethylene ether as well as preparation method and application thereof

A cardanol polyoxyethylene ether, cardanol technology is applied in chemical instruments and methods, preparation of detergent mixture compositions, detergent compounding agents, etc. Insufficient research, dark color and other problems, to achieve the effect of strong natural degradation ability, good foam stability and light color

Pending Publication Date: 2020-12-04
上海邦高化学有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] To sum up, in recent years, the research on cardanol polyoxyethylene ether lacks the development and application of high-polymerization products, and the research on foaming property is insufficient. In addition, untreated cashew nut polyoxyethylene ether usually has a darker color deep and smelly

Method used

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  • Cardanol polyoxyethylene ether as well as preparation method and application thereof
  • Cardanol polyoxyethylene ether as well as preparation method and application thereof
  • Cardanol polyoxyethylene ether as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] The preparation method of cardanol polyoxyethylene ether comprises the following steps:

[0040] Put 234.64g of cardanol into a closed reaction kettle, add 2.94g of potassium hydroxide catalyst, replace the air in the reaction kettle with nitrogen for 3 times, raise the temperature to 100-110°C, keep the temperature, and keep the temperature under a negative vacuum of 0.08MPa. Press down nitrogen gas for dehydration for 30 minutes, start to add ethylene oxide at a temperature of 112.4°C, control the pressure in the reactor between 0.1Mpa and 0.2MPa during the feeding process, and control the reaction temperature at 150-170°C. After 765g of ethylene oxide, the feed intake is all over, continue to react until the pressure in the reactor no longer drops, degassing 10min under 0.1Mpa negative pressure, until the temperature drops to 75°C, add 3g of 30% hydrogen peroxide (according to the obtained cashew nut 0.003 of the theoretical yield of phenol polyoxyethylene ether (add...

Embodiment 2

[0048] The preparation method of cardanol polyoxyethylene ether comprises the following steps:

[0049] Put 197g of cardanol into a closed reaction kettle, add 2.31g of potassium hydroxide catalyst, replace the air in the reaction kettle with nitrogen for 3 times, raise the temperature to 100-110°C, keep the temperature, and keep the temperature under a vacuum of 0.1MPa. Dehydration under high temperature for 30min, and start to add ethylene oxide at a temperature of 120°C. During the feeding process, control the pressure in the reactor between 0.1Mpa and 0.2MPa, and control the reaction temperature at 150-170°C. After adding 574g of epoxy The ethane feeding is all over, continue to react until the pressure in the reactor is no longer reduced, and degas for 10min under a negative pressure of 0.1MPa. When the temperature drops to 65°C, add 2g of 30% hydrogen peroxide (according to the product cardanol polyoxygen 0.005% of the theoretical yield of vinyl ether (add 30% hydrogen p...

Embodiment 3

[0057] The preparation method of cardanol polyoxyethylene ether comprises the following steps:

[0058] Put 213g of cardanol into a closed reaction kettle, add 2.12g of sodium hydroxide catalyst, replace the air in the reaction kettle with nitrogen three times, raise the temperature to 100-110°C, keep the temperature, and under the negative pressure of 0.1MPa vacuum Dehydrate for 30 minutes, start adding ethylene oxide at a temperature of 120°C, control the pressure in the reactor between 0.1Mpa and 0.2MPa during the feeding process, control the reaction temperature at 150-170°C, and add 527g of ethylene oxide After the alkanes, the feeding is all finished, and the reaction is continued until the pressure in the reactor no longer drops, and the degassing is performed under a negative pressure of 0.1Mpa for 10 minutes. When the temperature drops to 80°C, 3.7g of hydrogen peroxide (according to cardanol polyoxyethylene) with a concentration of 30% is added. Add 30% hydrogen pero...

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Abstract

The invention discloses cardanol polyoxyethylene ether. The structure of the cardanol polyoxyethylene ether is as shown in the specification. The cardanol polyoxyethylene ether provided by the invention can be used as a foaming agent; and compared with a traditional foaming agent, the cardanol polyoxyethylene ether has the advantages of being good in foam stability, light in color, low in odor andsimple to prepare.

Description

technical field [0001] The invention belongs to the technical field of surfactants, and in particular relates to cardanol polyoxyethylene ether with light color, low odor and strong foaming ability, its preparation method and application. Background technique [0002] Cashew nut shell liquid (CNSL) is a by-product of cashew nut processing, its content is about 25% to 30% of cashew nuts, and the annual output is about 500,000 tons. The main ingredient of CNSL is cardanol, which is as high as 90%. The meta-position of the phenolic hydroxyl group of cardanol is an unsaturated hydrocarbon substituent with 15 carbons, and its unique structure enables it to be used in the synthesis of surfactants. [0003] [0004] Cardanol polyoxyethylene ether is a non-ionic surfactant, which has important applications in pesticides, coal smelting, washing, pharmaceuticals, pigment surface treatment, and metal corrosion inhibition. In recent years, cases about the synthesis and application ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G65/28C11D1/72C11D1/83C11D3/386C11D3/38C11D3/34C11D3/60
CPCC08G65/2612C11D1/72C11D1/83C11D3/38618C11D3/38C11D3/349C11D1/662C11D1/29C11D2111/12
Inventor 王利民巩宇车飞张蒙杨彭张景清韩建伟田禾顾怡宁赵鹏杰
Owner 上海邦高化学有限公司
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