CN105309637A

CN105309637A - Synthesis method of edible oil iodine additive

Info

Publication number: CN105309637A
Application number: CN201410329753.7A
Authority: CN
Inventors: 马井芳
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-07-11
Filing date: 2014-07-11
Publication date: 2016-02-10

Abstract

The invention discloses a synthesis method of edible oil iodine additive. The synthesis method is characterized by comprising the following steps: (1) cooling edible oil to a temperature of 5 to 9 DEG C, introducing hydrogen iodide into the edible oil under continuous stirring and ultraviolet radiation, carrying out reactions for 38 to 45 hours, wherein during the reaction process, the color of the edible oil turns from light yellow to dark brown, and the weight increases; (2) adding a proper water into the oily mixture containing free iodine and organic bound iodine, mixing, shaking, allowing the mixture to stand for layering, removing water, and repeating the previous steps for 2 to 5 times; (3) adding a sodium thiosulfate solution into the substance obtained in the step (2), fully shaking, allowing the mixture to stand for layering, removing water, and removing iodine; (4) adding a proper amount of ether into the oil that has been subjected to an iodine removing treatment to dilute the oil, and then adding anhydrous sodium sulfate to carry out dehydration; (5) adding urea into the dehydrated iodine-containing oil, wherein the urea accounts for 1 to 8% of the total weight of oil, shaking to obtain uniform suspension, allowing the suspension to stand still, and filtering the suspension by nitrogen gas flow to obtain a light yellow oily ether solution; (6) carrying out vacuum separation to remove ether to obtain a thick, light yellow, and clarified concentrated solution of iodine-containing edible oil.

Description

A kind of synthetic method of iodine additives of edible oil

Technical field

The invention provides a kind of synthetic method of iodine additives of edible oil, belong to technical field of organic synthesis.

Background technology

We are in global emphasis iodine deficient area, and the Chinese government has promised to undertake eliminated IDD(Iodine deficiency disorders) in recent years.For adapting to eliminate IDD(Iodine deficiency disorders), China enforcement whole people eat iodine common salt and enrich the iodine.But, because salt compounded of iodine is inorganic salts solids, 40/1000ths milligrams, be difficult to mix, and stable not.

Summary of the invention

The present invention adds iodine with edible oil, and jointly to form diet indispensable with iodic salt, oil and salt with every day, often eat, micro-ly take in iodine for a long time, meet human organism and to enrich the iodine needs.

Object of the present invention, is to provide a kind of absorption of human body that is easy to, the synthetic method of more stable iodine additives of edible oil.

Above-mentioned purpose of the present invention, is realized by following technical measures:

Iodine additives of edible oil synthesis step is as follows:

1. will be cooled to the edible oil of 5-9 DEG C, under being placed in Ultraviolet radiation, in the process constantly stirred, pass into hydrogen iodide;

Reaction principle is as follows:

Reaction continues 38-45 hour, and oil is deepened to dark-brown gradually from light yellow, and gains in weight.

2. the oily concurrent above-mentioned reaction gained being contained free-iodine and combination iodine adds appropriate water mixing, jolting, and then leave standstill, multi_layer extraction, except anhydrating, repeats 2-5 time.

3. add hypo solution to above-mentioned reaction gains, shake well, stratification, except anhydrating, collect oil, implement de-iodine;

4. add appropriate ether dilution to de-lipiodol matter, then add anhydrous sodium sulfate dehydration;

5. the skiadin liquid after dehydration, adds the urea of oily gross weight 1-8%, and jolting suspendible is even, after leaving standstill, filters, obtain faint yellow oily ethereal solution in nitrogen stream;

6. the fuel-displaced middle ether of decompression separation, obtains thickness, faint yellow, clear and bright containing iodine edible oil concentrate.

Containing iodine edible oil concentrate, be iodine additives of edible oil.Amount of iodine is between 5-45%.The height of amount of iodine is relevant with selecting the quality of feedstock oil iodine value, optional soya-bean oil, sesame oil, poppy seed oil.Iodine additives of edible oil is kept in nitrogen-filled seal glass container, and concentration (amount of iodine) is diluted, is dissolved in edible oil on demand.Comparatively stablely easily to be mixed containing iodine edible oil character, content of iodine can control.Jointly form the indispensable oil of diet and salt containing iodine edible oil and iodic salt, be more suitable for human intake.Because the raw quality of edible oil can ensure, universal life well.The use of the technology of the present invention, will eradicate IDD more thoroughly.

Below by most preferred embodiment, describe feature of the present invention further.

1. be the soya-bean oil of 5-7 DEG C by oil temperature, under being placed in Ultraviolet radiation, under the uninterrupted state stirred, pass into hydrogen iodide, 40 hours reaction time; Now oil is dark-brown;

2. containing free-iodine and organically combining in the oily concurrent of iodine to above-mentioned reaction gained, add appropriate water, multiple oscillation after mixing, then leave standstill, layering, separation dewaters, and collects oily, repeats secondary;

3. in the oily gains of preceding paragraph collection, adding hypo solution, fully vibrate, leave standstill, be separated, except anhydrating, implementing to remove free-iodine;

4. in the above-mentioned oil removing free-iodine, be blown into 50-60 DEG C of hot-air 8-10 hour, combine unstable iodine to destroy in oil, short its dissociates out;

5. pair to be blown into the oil of hot-air, to repeat sodium thiosulfate and take off iodine operation;

6. take off iodine gains to secondary and add the dilution of appropriate ether, then add anhydrous sodium sulfate dehydration;

7. the skiadin liquid after dehydration, adds the urea of 5% of oily total amount, and jolting suspendible is even, places 2 hours, filters in nitrogen stream, obtain faint yellow oily ethereal solution;

8. the fuel-displaced middle ether of decompression separation, obtains thickness, faint yellow, clear and bright containing iodine edible oil concentrate.

This concentrate, is edible oil containing iodine additives.Content of iodine is less than 45%.In technical process, ultraviolet plays catalytic action, and urea is stabilizing agent, and nitrogen stream has the effect preventing the oxidized decomposition of organic iodine.

In the present embodiment, hydrogen iodide is having under water existence condition by red phosphorus and iodine, and reaction generates hydrogen iodide.

Claims

1. a synthetic method for iodine additives of edible oil, is characterized in that iodine additives of edible oil synthesis step is as follows: the edible oil that (1) will be cooled to 5-9 DEG C, under being placed in Ultraviolet radiation, passes into hydrogen iodide in the process constantly stirred; Reaction principle is as follows: reaction continues 38-45 hour, and oil is deepened to dark-brown gradually from light yellow; And gain in weight, the oily concurrent that above-mentioned reaction gained is contained free-iodine and combination iodine by (2) adds appropriate water mixing, jolting, and stratification, Separation of Water, repeat 2-5 time; (3) add hypo solution to above-mentioned reaction gains, shake well, stratification Separation of Water, implement de-iodine; (4) in de-lipiodol matter, add appropriate ether dilution, then add anhydrous sodium sulfate dehydration; (5) the skiadin liquid after dehydration, adds the urea of oily total amount 1-8%, and jolting suspendible is even, after leaving standstill, filters, obtain faint yellow oily ethereal solution in nitrogen stream; (6) the fuel-displaced middle ether of decompression separation, obtains thickness, faint yellow, clear and bright containing iodine edible oil concentrate.

2. the synthetic method of a kind of iodine additives of edible oil according to claim 1, is characterized in that: oil temperature is the soya-bean oil of 5-7 DEG C by (1), or other plant oil, under being placed in Ultraviolet radiation, under the uninterrupted state stirred, pass into hydrogen iodide, 40 hours reaction time; Now oil is dark-brown; And gain in weight, (2) containing free-iodine and organically combining in the oily concurrent of iodine to above-mentioned reaction gained, add appropriate water, multiple oscillation after mixing, then leaves standstill, and multi_layer extraction is collected oily except anhydrating, repeat secondary; (3) to preceding paragraph collect oily gains in add hypo solution, fully vibrate, leave standstill, layering except anhydrating, implement remove free-iodine; (4) in the above-mentioned oil removing free-iodine, be blown into 50-60 DEG C of hot-air 8-10 hour, combine unstable iodine to destroy in oil, short its dissociates out; (5) to be blown into hot-air oil, repeat sodium thiosulfate take off iodine operation; (6) take off in iodine gains fluid to secondary and add ether dilution, then add anhydrous sodium sulfate dehydration; (7) the skiadin liquid after dehydration, adds the urea of 5% of oily total amount, and jolting suspendible is even, places 2 hours, filters in nitrogen stream, obtain faint yellow oily ethereal solution; (8) the fuel-displaced middle ether of decompression separation, obtains thickness, faint yellow, clear and bright containing iodine edible oil concentrate.