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A kind of ferrous sucrose and preparation method thereof

A technology of sucrose and ferrous iron, which is applied in the field of preparation of organic complexes, can solve the problems of iron-deficiency yellowing of plant leaves, not being absorbed and utilized by plants, and difficulty in maintaining divalent forms, so as to achieve less raw materials, shorten production time, The effect of increasing productivity

Active Publication Date: 2020-09-15
北京市林业果树科学研究院
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Soil salinization leads to iron deficiency and yellowing of plant leaves, which directly restricts photosynthetic capacity, thereby affecting tree growth, reducing yield and quality
Ferrous iron Fe(II) is an indispensable element for plant growth, but in saline-alkaline soil, Fe(II) is easily oxidized to trivalent Fe(III) or combined with PO 4 3- Plasma forms insoluble compounds that are not effectively absorbed by plants
There are few reports on ferrous sucrose, and the research on preparation methods is also very limited. Similar substances appear in the form of ferric iron. The main technical difficulty is that iron is easily oxidized during the preparation process and it is difficult to maintain the divalent form.
Propose adopting ferrous hydroxide in the prior art, be equipped with the method for preparing ferrous sucrose of stabilizer, its shortcoming is that reaction step is many, energy consumption is big, product production cycle is long, equipment utilization rate is low, and production cost is higher

Method used

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  • A kind of ferrous sucrose and preparation method thereof

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Embodiment 1

[0039] The present embodiment provides a kind of preparation method of ferrous sucrose, and described preparation method comprises the steps:

[0040] 1) Dissolve 1 kg of sucrose in 8 times the weight of tetrahydrofuran solvent, and stir at 400 rpm for 10 min at a temperature of 40°C;

[0041] 2) Dissolve 5kg of ferrous chloride in THF solvent twice the weight, and stir at 600rpm for 5min at a temperature of 40°C;

[0042] 3) Mix the two solutions prepared in step 1) and step 2) uniformly, place them at a temperature of 100° C., stir at a rate of 400 to 600 rpm, and react for 8 hours to obtain a ferrous sucrose solution; Put the iron solution at a temperature of 40°C, distill under reduced pressure, take the solid phase, and collect the powder by spray drying to obtain ferrous sucrose;

[0043] 4) Heat and sterilize the ferrous sucrose obtained in step 3) at a temperature of 121° C. for 20 minutes, and cool to obtain ferrous sucrose. The yield was 86% and the purity was 98%....

Embodiment 2

[0045] The present embodiment provides a kind of preparation method of ferrous sucrose, and described preparation method comprises the steps:

[0046]1) Dissolve 1 kg of sucrose in 8 times the weight of dimethyl sulfoxide solvent, and stir at 800 rpm for 10 min at a temperature of 50 ° C;

[0047] 2) Dissolve 3 kg of ferrous sulfate in 2.3 times the weight of dimethyl sulfoxide solvent, and stir at 1000 rpm for 15 min at a temperature of 40 ° C;

[0048] 3) Mix the two solutions prepared in step 1) and step 2) uniformly, place them at a temperature of 110° C., stir at a rate of 400 to 600 rpm, and react for 12 hours to obtain a ferrous sucrose solution; The iron solution is placed at a temperature of 50°C, distilled under reduced pressure, the solid phase is taken, and the powder is collected by spray drying to obtain ferrous sucrose;

[0049] 4) Heat and sterilize the ferrous sucrose obtained in step 3) at a temperature of 121° C. for 25 minutes, and cool to obtain ferrous s...

Embodiment 3

[0052] The present embodiment provides a kind of preparation method of ferrous sucrose, and described preparation method comprises the steps:

[0053] 1) Dissolve 3 kg of sucrose in 3.4 times the weight of acetonitrile solvent, and stir at 1200 rpm for 15 min at a temperature of 60 ° C;

[0054] 2) Dissolve 7.5kg of ferrous chloride in 1.07 times the weight of acetonitrile solvent, and stir at 1600rpm for 20min at a temperature of 40°C;

[0055] 3) Mix the two solutions prepared in step 1) and step 2) uniformly, place them at a temperature of 120° C., stir at a rate of 400 to 600 rpm, and react for 16 hours to obtain ferrous sucrose solution; Place the iron solution at a temperature of 60°C, distill under reduced pressure, take the solid phase, and collect the powder by spray drying to obtain ferrous sucrose;

[0056] 4) Heat and sterilize the ferrous sucrose obtained in step 3) at a temperature of 121° C. for 35 minutes, and cool to obtain ferrous sucrose. The yield was 86%...

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Abstract

The invention relates to ferrous sucrose and a preparation method thereof. The preparation method specifically includes respectively and sufficiently dissolving sucrose and ferrous salt in strong polar solvents, uniformly mixing the two solutions, allowing the mixed solution to react at the temperature of 70-130 DEG C for 4-20 hours to obtain a ferrous sucrose solution, and powdering the ferrous sucrose solution to obtain the ferrous sucrose. The ferrous sucrose prepared by the method has the ferrous characteristics, high stability and high water solubility, and is not liable to oxidize. The ferrous sucrose can be further prepared into iron-supplementing preparations, thereby being efficient and environmentally friendly.

Description

technical field [0001] The invention relates to a preparation process of an organic complex, in particular to ferrous sucrose and a preparation method thereof. Background technique [0002] my country's salinized land area is about 1.48 billion mu, concentrated in the northeast, central north, northwest, coastal and northern China and other planting areas, seriously restricting the development of agriculture and forestry. Soil salinization leads to iron deficiency and yellowing of plant leaves, which directly restricts photosynthetic capacity, thereby affecting tree growth, reducing yield and quality. Ferrous iron Fe(II) is an indispensable element for plant growth, but in saline-alkaline soil, Fe(II) is easily oxidized to trivalent Fe(III) or combined with PO 4 3- Plasma forms poorly soluble compounds that are not effectively absorbed by plants. The traditional method of iron supplementation uses organic matter such as EDTA to form a chelate compound with Fe(II) to stabi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07H23/00C07H1/00C07H1/06C07H3/04C05D9/02
Inventor 杨雨璋李民吉张强张军科魏钦平
Owner 北京市林业果树科学研究院
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