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Saturated cardanol polyoxyethylene ether and preparation method thereof

A cardanol polyoxyethylene ether and cardanol technology are applied in the field of saturated cardanol polyoxyethylene ether and its preparation, and achieve the effects of simple process and stable use performance

Active Publication Date: 2011-10-05
NORTHEASTERN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] Aiming at the performance problems of existing cardanol phenolic compounds, the present invention provides a saturated cardanol polyoxyethylene ether and a preparation method thereof, through catalytic hydrogenation and epoxidation of cardanol, so that the unsaturated side chain alkanes become It is a saturated alkane, so that the original mixture of various substances can be changed into one substance, so as to obtain a product with stable performance

Method used

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  • Saturated cardanol polyoxyethylene ether and preparation method thereof
  • Saturated cardanol polyoxyethylene ether and preparation method thereof
  • Saturated cardanol polyoxyethylene ether and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0071] The hydrogenation catalyst used is RTH3110Raney nickel; the organic solvent used is absolute ethanol, the addition catalyst used is NaOH, and the inert gas used is nitrogen;

[0072] Put 720g of cardanol in a high-pressure airtight container, add RTH3110Raney nickel and absolute ethanol, the addition of hydrogenation catalyst is 1 times of the total weight of cardanol; the addition of absolute ethanol is 5 times of the total weight of cardanol; Nitrogen gas was passed into the high-pressure airtight container at 2 L / min for 10 minutes, the air was replaced, and then hydrogen was introduced until the pressure in the high-pressure airtight container was 0.15 MPa. Drop again, and the 6.5h reaction is completed, and a reaction solution is obtained;

[0073] The primary reaction solution is filtered to remove the hydrogenation catalyst, and then the filtrate is subjected to atmospheric distillation at 78-80°C to remove absolute ethanol to obtain an intermediate solution;

...

Embodiment 2

[0079] The hydrogenation catalyst used is RTH3124Raney nickel; the organic solvent used is absolute ethanol, and the addition catalyst used is K 2 CO 3 , the inert gas used is argon;

[0080] 720g cardanol is placed in a high-pressure airtight container and added RTH3124Raney nickel and dehydrated alcohol, the addition of hydrogenation catalyst is 10 times of the total weight of cardanol; the addition of dehydrated alcohol is 6 times of the total weight of cardanol; Pass argon gas at 2 L / min into the high-pressure closed container for 10 minutes, replace the air, and then pass hydrogen gas into the high-pressure closed container until the pressure in the high-pressure closed container is 0.13 MPa. Drop again, and the 7h reaction is completed, and a reaction solution is obtained;

[0081] The primary reaction solution is filtered to remove the hydrogenation catalyst, and then the filtrate is subjected to atmospheric distillation at 78-80°C to remove absolute ethanol to obtain...

Embodiment 3

[0087] The hydrogenation catalyst adopted is RTH3146Raney nickel; the organic solvent adopted is tetrahydrofuran, and the addition catalyst adopted is Na 2 CO 3 , the inert gas used is CO 2 ;

[0088] Put 720g of cardanol into a high-pressure airtight container, add RTH3110Raney nickel and tetrahydrofuran, the addition of hydrogenation catalyst is 4 times of the total weight of cardanol; the addition of tetrahydrofuran is 4 times of the total weight of cardanol; Inject CO at 2 L / min 2 10min, replace the air, and then pass in hydrogen until the pressure in the high-pressure airtight container is 6MPa, and then react at room temperature and with a stirring speed of 180r / min until the hydrogen pressure no longer drops, and the reaction is completed in 5.5h, and a reaction solution is obtained ;

[0089] The primary reaction solution is filtered to remove the hydrogenation catalyst, and then the filtrate is subjected to atmospheric distillation at 65~67°C to remove tetrahydrof...

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Abstract

The invention relates to saturated cardanol polyoxyethylene ether and a preparation method thereof, which belongs to the technical field of organic synthesis, and the structural formula of the saturated cardanol polyoxyethylene ether is as follows, wherein n=2-30. The preparation method comprises the following steps: performing a hydrogenation reaction of cardanol; performing filtration and distillation, and performing an addition reaction with ethylene oxide; adjusting the pH value, filtering, and performing reduced-pressure distillation; or performing an addition reaction of cardanol and ethylene oxide; adjusting the pH value, filtering, performing a hydrogenation reaction, filtering, and performing reduced-pressure distillation. The preparation method of the invention uses cardanol as a raw material, and prepares cardanol polyoxyethylene ether with different ethylene oxide adduct numbers and saturated side chains; the product does not contain mixed unsaturated double bond structures, has surface activity, and has stable using performance.

Description

technical field [0001] The invention belongs to the technical field of organic synthesis, in particular to a saturated cardanol polyoxyethylene ether and a preparation method thereof. Background technique [0002] Cardanol is a compound extracted from discarded cashew nut shells. As a renewable resource, it can replace petroleum as raw materials to prepare phenolic substances and derivatives, creating a new field of green chemistry. [0003] Cardanol is mainly used in the synthesis and modification of synthetic cardanol / aldehyde condensation products, epoxy resins, water-based oily and other multi-purpose coatings. According to the literature record of patent No. IND111326, cardanol can be obtained by distillation and separation of cashew nut shell liquid, and its structure is found to be: [0004] [0005] The meta-substituent R is mainly an unsaturated chain alkyl group with 15 carbons; according to K.Prabhakaran (K.Prabhakaran, Asha Narayanan, C.Pavithran. Cardanol a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G65/28C08G65/322C07C43/205C07C41/03
Inventor 陈锋胡芳李红耀陈自强
Owner NORTHEASTERN UNIV
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