A kind of method utilizing hydrogenated oil to prepare vinylbisstearamide

A technology of vinyl bisstearamide and hydrogenated oil, which is applied in chemical instruments and methods, preparation of organic compounds, preparation of carboxylate, etc., can solve the problem of low saponification rate of hydrogenated palm oil saponification reaction, and achieve unmatched reaction conditions Harsh, high saponification rate, high yield effect

Active Publication Date: 2019-12-13
GUANGZHOU CARDLO BIOCHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this invention, the saponification rate of hydrogenated palm oil saponification reaction is relatively low, and needs to be improved

Method used

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  • A kind of method utilizing hydrogenated oil to prepare vinylbisstearamide
  • A kind of method utilizing hydrogenated oil to prepare vinylbisstearamide
  • A kind of method utilizing hydrogenated oil to prepare vinylbisstearamide

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Effect test

Embodiment 1

[0026] Embodiment 1 A kind of method utilizing hydrogenated oil to prepare vinylbisstearamide

[0027] The described method utilizing hydrogenated oil to prepare vinylbisstearamide comprises the following steps:

[0028] S1 puts hydrogenated palm oil into the reactor, stirs and adds 30% sodium hydroxide solution and 1% hydrogenated palm oil mass H 3 SiW 12 o 40 -SbF 5 , controlling the ultrasonic power to 280W, the reaction temperature to 70°C, the stirring speed to 200r / min, and the reaction time to 5h, the saponified product was obtained;

[0029] S2 Stir and add sulfuric acid solution with a volume concentration of 15% to the saponified product obtained in step S1 until the pH is 1, stop the acidification, cool to room temperature, let stand for 1h, take the lower layer and place it in a distillation tower at a pressure of 0.08 MPa and a temperature of 230 Distill at ℃ to obtain stearic acid;

[0030] S3 adds the stearic acid obtained in step S2 and the antioxidant T50...

Embodiment 2

[0032] Embodiment 2 A kind of method utilizing hydrogenated oil to prepare vinylbisstearamide

[0033] The described method utilizing hydrogenated oil to prepare vinylbisstearamide comprises the following steps:

[0034]S1 puts hydrogenated palm oil into the reactor, stirs and adds a sodium hydroxide solution with a mass concentration of 35% and hydrogenated palm oil with 2% H 3 SiW 12 o 40 -SbF 5 , control the ultrasonic power to 320W, the reaction temperature is 75°C, the stirring speed is 250r / min, the reaction time is 6h, and the saponified product is obtained;

[0035] S2 Stir and add a volume concentration of 20% sulfuric acid solution to the saponified product obtained in step S1 until the pH is 1.5, stop the acidification, cool to room temperature, let stand for 1.5h, take the lower layer liquid and place it in a distillation tower at a pressure of 0.08 MPa and a temperature of Distill at 240°C to obtain stearic acid;

[0036] S3 adds the stearic acid obtained in ...

Embodiment 3

[0038] Embodiment 3 A kind of method utilizing hydrogenated oil to prepare vinylbisstearamide

[0039] The described method utilizing hydrogenated oil to prepare vinylbisstearamide comprises the following steps:

[0040] S1 puts hydrogenated palm oil into the reactor, stirs and adds 40% sodium hydroxide solution and 3% hydrogenated palm oil quality H 3 SiW 12 o 40 -SbF 5 , controlling the ultrasonic power to 360W, the reaction temperature to 80°C, the stirring speed to 300r / min, and the reaction time to 7h, to obtain a saponified product;

[0041] S2 Stir and add a sulfuric acid solution with a volume concentration of 25% to the saponified product obtained in step S1 until the pH is 2, stop the acidification, cool to room temperature, let stand for 2h, take the lower layer and place it in a distillation tower at a pressure of 0.09MPa and a temperature of 250 Distill at ℃ to obtain stearic acid;

[0042] S3 adds stearic acid obtained in step S2 and antioxidant T501 with 0....

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Abstract

The invention belongs to the technical field of chemical engineering, and concretely relates to a method for preparing N,N'-ethylene bis-stearamide (EBS) by utilizing hydrogenated oil. According to the provided method for preparing the N,N'-ethylene bis-stearamide (EBS) by utilizing the hydrogenated oil, the N,N'-ethylene bis-stearamide is prepared by using hydrogenated palm oil as a raw material, performing saponification to obtain stearic acid, and performing reaction on the obtained stearic acid and ethylenediamine, wherein T501 is used as an antioxidant and a material obtained by compounding phosphoric acid and lithium tert-butoxide is used as a catalyst. The method is simple in preparation process, not strict in reaction conditions, and do not have three wastes (waste gas; waste water; industrial residue); the reaction temperature of the saponification reaction of the hydrogenated palm oil is low, the reaction time is short, and the saponification rate is high; and the prepared N,N'-ethylene bis-stearamide has the advantages of high purity, low chroma, a narrow melting range and a high yield.

Description

technical field [0001] The invention belongs to the technical field of chemical industry, and in particular relates to a method for preparing vinyl bisstearamide from hydrogenated oil. Background technique [0002] Vinyl bisstearamide, also known as ethylene bisstearamide (N,N′-Ethylenebisstearamide, referred to as EBS), is a representative variety of fatty bisamide compounds in plastic lubricants. It is used in rigid PVC, ABS, AS, It plays a pivotal role in the processing of thermoplastic resins such as PC and POM. At present, EBS synthesis methods can generally be divided into four routes: 1) the reaction of stearic acid and amine compounds; 2) the reaction of stearate and amine compounds; 3) the reaction of stearyl chloride and amine compounds; 4) the reaction of nitrile compounds of hydrolysis. The first method has simple process, not harsh reaction conditions, and no three wastes, but the purity is low; although the latter three methods can obtain high-purity products...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C231/02C07C233/36
CPCC07C51/02C07C51/412C07C231/02C07C233/36C07C53/126
Inventor 徐怀义马银官
Owner GUANGZHOU CARDLO BIOCHEM TECH
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