CN104086453A - Production method of nutrition enhancer ferric sodium ethylenediamine tetraacetate - Google Patents
Production method of nutrition enhancer ferric sodium ethylenediamine tetraacetate Download PDFInfo
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- CN104086453A CN104086453A CN201410260561.5A CN201410260561A CN104086453A CN 104086453 A CN104086453 A CN 104086453A CN 201410260561 A CN201410260561 A CN 201410260561A CN 104086453 A CN104086453 A CN 104086453A
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- production method
- tetraacetic acid
- ethylenediamine tetraacetic
- sytron
- sodium hydroxide
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Abstract
The invention discloses a production method of a nutrition enhancer ferric sodium ethylenediamine tetraacetate. The method comprises the processes of raw material synthesizing and dissolving, concentrating, crystallizing, centrifuging, drying, crushing and sieving, packaging, and storing. The innovative point of the invention lies in that according to the production method, iron oxide, ethylenediamine tetraacetic acid and sodium hydroxide are adopted as raw materials. In the raw material synthesizing and dissolving step, according to a mass ratio that water to iron oxide to ethylenediamine tetraacetic acid to sodium hydroxide equals 5-7:2-3:3-5:1-2, iron oxide and ethylenediamine tetraacetic acid are dissolved in water, and the mixture is heated to the temperature of 30-35 DEG C. Sodium hydroxide is added, and the pH value of the solution is regulated to 5-7 after the solution is completely dissolved. The method provided by the invention has the following advantages: no byproduct is generated during the production process, such that safety is high; mother liquor can be recycled and repeatedly applied, such that the mother liquor utilization rate is high; the product yield reaches 98.2%; and the requirement on environment protection is low.
Description
Technical field
The present invention relates to a kind of production method of foodstuff additive, be specifically related to a kind of production method of nutrition-fortifying agent Sytron.
Background technology
Iron nutritive deficiency is one of global the most serious at present nutrition problem.Food fortification iron and the iron-fortified foods of ingesting are considered to the effective way of improving iron nutritional status of " inexpensive " conventionally.The general specific absorption of traditional iron enriched nutrient is lower and irritant to stomach, and can cause the disadvantageous changes of food carrier mouthfeel and color and luster aspect, difficult to strengthening sheet iron strip in food.Researchist was in composition scientific research group in 1997, succeed in developing tasteless easily melting and there is bioactive organic chelated iron enriched nutrient simultaneously---Sytron (NaFeEDTA), trade(brand)name is according to subway, claim again ethylenediamine tetraacetic acid(EDTA) ferrisodium, whole nation foodstuff additive technical committee for standardization (TCST) can agree to use as source of iron the 19 next year, the Ministry of Health notices approval 1999 No. 14, list GB2760-1996 (amendments in 1999) in, use range and time consumption implement GB14880-94 standard, use as iron enriched nutrient, this just makes to become work hardening iron to become in food can be the iron enriched nutrient that has prospect present stage present stage.
Sytron is light yellow solid powder, and stable performance can be high temperature resistant and be difficult for oxidizedly, has good solubility (in water, solubleness is issued to 100g/100ml 25 DEG C of conditions) in water and acid, is insoluble in ethanol.Of many uses, mainly at foodstuff additive and field of medicaments as irony supplement, sequestrant.Sytron mainly contains following advantage: 1) without gastrointestinal irritation, have special duodenum to absorb; 2) specific absorption is high, there are some researches show that its iron absorptivity is 2~3 times of ferrous sulfate; 3) safe without toxic side effect, is put into " GRAS " list, also has the effect with the rapid complexing removing toxic substances of poisonous metal in the process of being absorbed by the body simultaneously; 4) there is the effect that the source of iron that promotes in other meals or endogenous source of iron absorb, can promote the absorption of zinc, and the absorption of calcium is not affected simultaneously.
Traditional food level Sytron is produced by iron(ic) chloride and disodium ethylene diamine tetraacetate, and principle is as follows:
/CH
2-COONa
FeCl
3+HOOC-CH
2-N-CH
2-CH
2-N-CH
2-COOH------→(C
10H
12N
2O
8)FeNa·3H
2O+NaCl
NaOOC-CH
2/
There is following defect in traditional food grade Sytron: 1) in production process, has by product sodium-chlor and produce; 2) yield is low gradually, and in product, impurity increases; 3) mother liquid recycling needs to discard for several times, causes production cost high; 4) increased environmental requirement.
Therefore, people expect the production method of a kind of nutrition-fortifying agent Sytron that a kind of defect that can overcome traditional method can be provided.
Summary of the invention
The technical problem to be solved in the present invention is to provide the production method of the nutrition-fortifying agent Sytron that a kind of no coupling product produces, degree of safety is high, yield is high, environmental requirement is low.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of production method of nutrition-fortifying agent Sytron, comprise that raw material synthetic dissolves, concentrated, crystallization, centrifugal, be dried, crush and screen after and packaging warehouse-in operation, this production method is taking ferric oxide, ethylenediamine tetraacetic acid (EDTA) and sodium hydroxide as raw material; The synthetic dissolving step of described raw material is to by soluble in water to ferric oxide and ethylenediamine tetraacetic acid (EDTA), is heated to 30-35 DEG C, adds sodium hydroxide, regulator solution pH value after solution dissolves completely.
Further, the synthetic dissolving step of described raw material is specially: be the ratio of 5-7: 2-3: 3-5: 1-2 according to the mass ratio of water, ferric oxide, ethylenediamine tetraacetic acid (EDTA) and sodium hydroxide, by soluble in water to ferric oxide and ethylenediamine tetraacetic acid (EDTA).
Further, regulate pH value value 5-7.
Further, in described enrichment step, concentration kettle pressure is-10 to-20Mpa.
Further, described drying step, wet crystal is heated to 75~85 DEG C and is dried in moisture eliminator.
Beneficial effect of the present invention:
1) the present invention is taking ferric oxide, ethylenediamine tetraacetic acid (EDTA) and sodium hydroxide as raw material production irony food enrichment Sytron, and in production process, no coupling product produces, and degree of safety is high;
2) adopt capable of circulation the applying mechanically of method production irony food enrichment Sytron mother liquor of the present invention, mother liquor utilization ratio is high, and product yield is high, and yield reaches how many 98.2%;
3) method environmental requirement of the present invention is low.
Embodiment
Below in conjunction with specific embodiment, technical scheme of the present invention is elaborated.
Embodiment 1
The production method of nutrition-fortifying agent Sytron comprises the following steps:
1, in dissolving pan, add water 2000L, continue to add iron oxide yellow 100kg and ethylenediamine tetraacetic acid (EDTA) 350kg, add sodium carbonate 80kg after being heated to 90 DEG C, stirring reaction, to dissolving completely, regulates pH value to 5.6.
2, dissolve and start after filtering to concentrate, concentration kettle pressure is-10MPA to be reduced at 1/3 o'clock until volume, preparation decrease temperature crystalline;
3, the wet crystal of centrifugal collection is collected mother liquor simultaneously;
4, wet crystal is heated to 80 DEG C, qualified rear discharging after testing in moisture eliminator;
5, dried feed is packed to obtain finished product after pulverizing, sieving.
The product of the present embodiment is light yellow solid powder, and yield is 98.2%.
Embodiment 2
The production method of nutrition-fortifying agent Sytron comprises the following steps:
1, in dissolving pan, add water 2000L, continue to add red iron oxide 95kg and ethylenediamine tetraacetic acid (EDTA) 350kg, add sodium hydroxide 75kg after being heated to 90 DEG C, stirring reaction is to dissolving completely;
2, dissolve and start after filtering to concentrate, concentration kettle pressure is-20MPA to be reduced at 1/3 o'clock until volume, preparation decrease temperature crystalline;
3, the wet crystal of centrifugal collection is collected mother liquor simultaneously;
4, wet crystal is heated to 84 DEG C, qualified rear discharging after testing in moisture eliminator;
5, dried feed is packed to obtain finished product after pulverizing, sieving.
The product of the present embodiment is light yellow solid powder, and yield is 98.3%.
Claims (5)
1. the production method of a nutrition-fortifying agent Sytron, comprise that raw material synthetic dissolves, concentrated, crystallization, centrifugal, be dried, crush and screen after and packaging warehouse-in operation, it is characterized in that: this production method is taking ferric oxide, ethylenediamine tetraacetic acid (EDTA) and sodium hydroxide as raw material; The synthetic dissolving step of described raw material is to by soluble in water to ferric oxide and ethylenediamine tetraacetic acid (EDTA), is heated to 30-35 DEG C, adds sodium hydroxide, regulator solution pH value after solution dissolves completely.
2. the production method of a kind of nutrition-fortifying agent Sytron according to claim 1, it is characterized in that: the synthetic dissolving step of described raw material is specially: be the ratio of 5-7: 2-3: 3-5: 1-2 according to the mass ratio of water, ferric oxide, ethylenediamine tetraacetic acid (EDTA) and sodium hydroxide, by soluble in water to ferric oxide and ethylenediamine tetraacetic acid (EDTA).
3. the production method of a kind of nutrition-fortifying agent Sytron according to claim 1, is characterized in that: regulate pH value value 5-7.
4. the production method of a kind of nutrition-fortifying agent Sytron according to claim 1, is characterized in that: in described enrichment step, concentration kettle pressure is-10 to-20Mpa.
5. the production method of a kind of nutrition-fortifying agent Sytron according to claim 1, is characterized in that: described drying step, wet crystal is heated to 75~85 DEG C and is dried in moisture eliminator.
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Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1426998A (en) * | 2001-12-19 | 2003-07-02 | 钟林 | Production method of EDTA complex metal salt |
CN1431193A (en) * | 2002-01-10 | 2003-07-23 | 钟林 | Method for producing complexation metal salt of ethylenediamine tetra acetic acid |
CN102001880A (en) * | 2010-05-11 | 2011-04-06 | 苏州联胜化学有限公司 | Process for producing microelement complex fertilizer |
-
2014
- 2014-06-11 CN CN201410260561.5A patent/CN104086453A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1426998A (en) * | 2001-12-19 | 2003-07-02 | 钟林 | Production method of EDTA complex metal salt |
CN1431193A (en) * | 2002-01-10 | 2003-07-23 | 钟林 | Method for producing complexation metal salt of ethylenediamine tetra acetic acid |
CN102001880A (en) * | 2010-05-11 | 2011-04-06 | 苏州联胜化学有限公司 | Process for producing microelement complex fertilizer |
Non-Patent Citations (2)
Title |
---|
安涛等: "食品强化剂EDTA铁钠制备新工艺研究", 《中国调味剂》 * |
张志朋等: "食品强化剂NaFeEDTA.3H2O的合成及表征", 《精细化工》 * |
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Application publication date: 20141008 |