A technical method for reducing the viscosity of rapeseed oil feet by using ultrasonic waves
A kind of rapeseed oil and ultrasonic technology, which is applied in the direction of fat oil/fat production and fat generation, can solve the problems of restricting the comprehensive development and utilization of rapeseed oil feet, the oil feet are easy to rancid and smelly, and the viscosity of rapeseed oil feet is high. Low cost, easy to use, and the effect of reducing viscosity
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Embodiment 1
[0014] Embodiment 1: a kind of technical method that utilizes ultrasonic assist to reduce the viscosity of rapeseed oil foot, comprises the following steps:
[0015] 1. Weigh 50g of rapeseed oil foot, place it in a 250mL Erlenmeyer flask and heat it to 40°C, add sodium hypochlorite solution (the amount added is based on adding 40mL of sodium hypochlorite solution per 100g of oil foot), and drop glacial acetic acid to adjust the pH, so that the pH is 4.5.
[0016] 2. Insert the ultrasonic probe into the material of the Erlenmeyer flask, adjust the ultrasonic power (120w), and maintain a constant temperature (40°C) for ultrasonic treatment for 15 minutes.
[0017] 3. After the ultrasonic treatment, take out the ultrasonic probe, heat the reaction vessel in a water bath, stir while heating, the stirring speed is 300r / min, keep the temperature of the reaction material at 40°C, and stir for 19 minutes.
[0018] 4. After the reaction, add 100mL water to wash 3 times each time, and ...
Embodiment 2
[0020] Embodiment 2: a kind of technical method that utilizes ultrasonic wave to assist to reduce the viscosity of rapeseed oil foot, comprises the following steps:
[0021] 1. Weigh 50g of rapeseed oil foot, place it in a 250mL Erlenmeyer flask and heat it to 43°C, add sodium hypochlorite solution (adding 36mL of sodium hypochlorite solution per 100g of oil foot), add dropwise glacial acetic acid to adjust the pH, so that the pH is 3.8.
[0022] 2. Insert the ultrasonic probe into the material in the Erlenmeyer flask, adjust the ultrasonic power (100w), and maintain a constant temperature (43°C) for 18 minutes of ultrasonic treatment.
[0023] 3. After the ultrasonic treatment, take out the ultrasonic probe, place the reaction vessel in a water bath to heat, stir while heating, the stirring speed is 300r / min, keep the temperature of the reaction material constant at 43°C, and stir for 15 minutes.
[0024] 4. After the reaction is over, add 140mL of water to wash twice, and t...
Embodiment 3
[0026] Embodiment 3: a kind of technical method that utilizes ultrasonic assist to reduce the viscosity of rapeseed oil foot, comprises the following steps:
[0027] 1. Weigh 50g of rapeseed oil foot, put it in a 250mL Erlenmeyer flask and heat it to 35°C, add sodium hypochlorite solution (the amount added is based on adding 44mL of sodium hypochlorite solution per 100g of oil foot), and drop glacial acetic acid to adjust the pH, so that the pH is 4.2.
[0028] 2. Insert the ultrasonic probe into the material of the Erlenmeyer flask, adjust the ultrasonic power (130w), and maintain a constant temperature (35°C) for ultrasonic treatment for 12 minutes.
[0029] 3. After the ultrasonic treatment, take out the ultrasonic probe, heat the reaction vessel in a water bath, stir while heating, the stirring speed is 300r / min, keep the temperature of the reaction material constant at 35°C, and stir for 25 minutes.
[0030] 4. After the reaction, add 80mL water to wash 4 times each time...
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