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Purification method of vegetable oil for preparing iodinated oil

A purification method and vegetable oil technology, applied in the direction of fat oil/fat refining, fat production, etc., can solve the problems of low overall benefit, waste of vegetable oil raw materials, low yield of vegetable oil, etc., and achieve the effect of improving the overall yield

Pending Publication Date: 2020-06-05
SHANGHAI WANXIANG PHARMA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In the above application documents, although impurities can be removed during the purification process to obtain high-purity plant essential oils, the raw material of vegetable oils is rich in unsaturated fatty acids, which are easily oxidized and deteriorated during the extraction process, making it difficult for the vegetable oil itself to be purified. As a result, the yield of vegetable oil is low, and is far lower than the theoretical yield value, which in turn causes waste of vegetable oil raw materials, which is not conducive to environmental protection, and the overall benefit is low. Therefore, a new solution needs to be proposed to solve the above problems

Method used

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  • Purification method of vegetable oil for preparing iodinated oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Embodiment 1: a kind of purification method that is used to prepare the vegetable oil of iodized oil mainly comprises following preparation steps:

[0032] Step 1, mix poppy seed oil and absolute ethanol in corresponding parts by weight, and the mass mixing ratio of poppy seed oil and absolute ethanol is 1:1, stir and heat up to 40°C, and keep stirring during this period, the stirring speed is 500rpm, and keep stirring continuously for 45min, then stop stirring, and place it at 25°C for 14h to obtain a layered purified sample;

[0033] Step 2, add 0.45 times the amount of absolute ethanol of poppy seed oil and 0.03 times the amount of activated carbon to the purified sample of the layered, stir and heat up to 75 ° C, and keep stirring at a stirring speed of 600 rpm for 30 minutes , then filter, and select centrifugal filtration for filtration, and the centrifugal speed is 1300rpm, the aperture size of the centrifugal screen is 25 mesh, and the centrifugation time is 7mi...

Embodiment 2

[0036] Embodiment 2: a kind of method for the purification of the vegetable oil that is used to prepare iodized oil, the difference with embodiment 1 is, mainly comprises following preparation steps:

[0037] Step 1, mix poppy seed oil and absolute ethanol in corresponding parts by weight, and the mass mixing ratio of poppy seed oil and absolute ethanol is 0.8:1, stir and heat up to 30°C, during which the stirring is continued, and the stirring speed is 400rpm, and kept stirring for 30min, then stopped stirring, and placed at 20°C for 10h to obtain a layered purified sample;

[0038] Step 2, add 0.4 times the amount of absolute ethanol of poppy seed oil and 0.02 times the amount of activated carbon to the purified sample of the layered, stir and heat up to 70 ° C, during which the stirring speed is 400 rpm, and keep stirring continuously for 20 minutes , then filter, and select centrifugal filtration for filtration, and the centrifugal speed is 800rpm, the aperture size of the c...

Embodiment 3

[0040] Embodiment 3: a kind of method for the purification of the vegetable oil that is used to prepare iodized oil, the difference with embodiment 1 is, mainly comprises following preparation steps:

[0041] Step 1, mix poppy seed oil and absolute ethanol in corresponding parts by weight, and the mass mixing ratio of poppy seed oil and absolute ethanol is 1.2:1, stir and heat up to 50°C, during which the stirring is continued, and the stirring speed is 600rpm, and keep stirring continuously for 60min, then stop stirring, and place it at 30°C for 18h to obtain a layered purified sample;

[0042] Step 2, add 0.5 times the amount of absolute ethanol of poppy seed oil and 0.04 times the amount of activated carbon to the purified sample of the layered, stir and heat up to 80 ° C, and keep stirring at a stirring speed of 800 rpm for 40 minutes , then filter, and select centrifugal filtration for filtration, and the centrifugal speed is 1800rpm, the aperture size of the centrifugal ...

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Abstract

The invention discloses a purification method of vegetable oil for preparing iodized oil, and relates to the technical field of vegetable oil purification. The purification method comprises the following steps: step 1, mixing vegetable oil and an alcohol solvent according to a mass ratio of (0.8-1.2):1, stirring, heating to raise the temperature, continuously stirring for 30-60 minutes during theheating process, then stopping stirring, and standing at 20-30 DEG C for 10-18 hours to obtain a layered purified sample; step 2, adding an alcohol solvent accounting for 40 to 50% of the vegetable oil and activated carbon accounting for 2 to 4% of the vegetable oil into the layered purified sample, stirring, heating to raise the temperature, continuously stirring for 20-40 minutes during the heating process, and filtering to obtain a filtrate; and step 3, finally, carrying out reduced pressure distillation on the filtrate to obtain an alcohol solvent, controlling the temperature in a distillation container to be 60-70 DEG C and the vacuum degree to be 0.055-0.085 MPa, and stopping heating and closing vacuum after distillation is finished to obtain purified vegetable oil. The purificationmethod has the advantages of high yield, environment friendliness and high overall benefit in the actual application process.

Description

technical field [0001] The invention relates to the technical field of vegetable oil purification, more specifically, it relates to a method for purifying vegetable oil used for preparing iodized oil. Background technique [0002] Iodized oil is an organic iodide obtained by combining iodine on the double bond of unsaturated fatty acid in vegetable oil. It is mainly used for contrast examination of bronchi, uterus, fallopian tube, fistula, cavity, etc., and also for embolization treatment of liver cancer and local Goiter. However, ordinary vegetable oils are not suitable for the synthesis of iodized oils directly, but must be purified before use. [0003] In the Chinese invention patent application document with publication number CN110055132A, a method for purifying plant essential oils is disclosed. The specific steps are as follows: 1. Select fresh plant materials, wash and dry them; 2. Pulverize the plant materials, And beating it; 3. Dry the plant material after beati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B3/00C11B3/10C11B3/12
CPCC11B3/001C11B3/006C11B3/10C11B3/008C11B3/12
Inventor 袁相富赵铭张崇东
Owner SHANGHAI WANXIANG PHARMA