Refined vegetable oil and production method thereof

A technology for refining vegetable oils and plants, applied in the field of refining vegetable oils, can solve the problems of oil pollution, environmental pollution by chemical refining methods, unfavorable health, etc., and achieve the effect of good oil quality

Inactive Publication Date: 2018-06-15
0 Cites 1 Cited by

AI-Extracted Technical Summary

Problems solved by technology

Refining vegetable oil by chemical methods will cause certain pollution to the oil, which is not conducive to health after eatin...
View more


The invention mainly discloses refined vegetable oil and a production method thereof. The concrete production method includes filtration, degelation (hydration), deacidification (alkalization), hydrogenation, decolorization and deodorization of crude oil; the refined vegetable oil ensures the quality of oil, impurities and pigments in the oil are removed, original fragrance and nutrient elements of the oil are not destroyed, and the refined vegetable oil meets the standards of first grade vegetable oil in China, and has good quality.

Application Domain

Fatty-oils/fats refining

Technology Topic

NutrientChemistry +5


  • Experimental program(1)

Example Embodiment

[0021] Example: A refining vegetable oil and a method thereof, including filtration, degumming (hydration), deacidification (alkalization), hydrogenation, decolorization, and deodorization of crude oil;
[0022] The specific production steps are as follows:
[0023] (1) Filter
[0024] Put the crude vegetable oil into the plate and frame filter to filter out some of the magazines, and then put it in the WL centrifuge for centrifugation and filtration for use.
[0025] (2) Degumming
[0026] After the process (1), the crude vegetable oil is heated to 70-75°C, and 50% citric acid is added according to the content of the non-hydratable phospholipid of the raw oil. The reaction is carried out in the acidification tank for 25-40 minutes, and 3-4 Baume is added. The lye is flocculated, while adding hot soft water of 3.0-3.5% oil weight, reacting in the hydration tank for 46-60 minutes, heating to 85°C, centrifugally separating the oil feet and primary degumming oil, and drying the primary degumming oil to remove moisture and residual solvent; The primary degummed vegetable oil is heated to 75°C through a heat exchanger, and 75% phosphoric acid with a concentration of 0.02-0.04% by weight is added, and the degumming reaction is carried out for 15-30 minutes to obtain the secondary degummed oil.
[0027] (3) Deacidification
[0028] Put the degummed oil in (2) into a cylindrical iron pot, then add 0.02%~0.5% phosphoric acid in the cylindrical iron pot, and treat it at 60~90℃ for 15-30 minutes, then add 1%~3 of oil Sodium hydroxide (caustic soda) with a concentration of 8% to 12% is saponified for 10 to 30 minutes. Because the saponified material sinks to the bottom of the pot due to its high proportion, it is called soapstock after being released; then it is washed with water or dilute acid at 65℃ 2 times, put the water solution, and then heated at 114 ℃ to remove the water, after drying to obtain a neutralized oil.
[0029] (4) Hydrogenation
[0030] Put the neutralized oil in (3) into the serpentine hydrogenation pot, keep the temperature in the pot at 200°C and the pressure at 41.37 kPa, add 0.01% to 0.2% nickel formate or nickel carbonate to the fat to fully react 4-6 Hydrogenated fat is obtained in about hours.
[0031] (5) Decolorization
[0032] Put the hydrogenated grease in (4) into the reactor, ensure that the temperature in the reactor is 225°C, 0.065-0.13KPa, and add active alumina or sulfurous acid with an amount of grease of 4%-6% After reacting for 30 minutes after the decolorizing agent, take out the decolorized fat and oil to cool, and filter to separate the decolorizing agent after cooling to 70°C.
[0033] (6) Deodorization
[0034] Put the decolorized grease in (5) into a vacuum tank with a temperature of 270°C and an air pressure of 5.07KPa, and put an appropriate amount of activated carbon for distillation. After the grease in the vacuum tank is cooled, add 0.005% to 0.01% of the lemon. Refined vegetable oil can be obtained after acid.
[0035] To sum up: the refined vegetable oil of the present invention removes impurities and pigments in the oil while ensuring the quality of the oil. The original fragrance and nutrient elements of the oil are not destroyed. It complies with the national first-level vegetable oil refining standard, and the oil quality is good.


no PUM

Description & Claims & Application Information

We can also present the details of the Description, Claims and Application information to help users get a comprehensive understanding of the technical details of the patent, such as background art, summary of invention, brief description of drawings, description of embodiments, and other original content. On the other hand, users can also determine the specific scope of protection of the technology through the list of claims; as well as understand the changes in the life cycle of the technology with the presentation of the patent timeline. Login to view more.
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products