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Preparation method of sugar alcohol chelated medium trace element liquid fertilizer

A medium and trace element, liquid fertilizer technology, applied in liquid fertilizers, fertilization methods, inorganic fertilizers, etc., can solve the problems of inconvenient operation, operational complexity and danger, complex process, etc., to improve product stability and low molecular weight. , the effect of high application value

Pending Publication Date: 2016-12-21
SINOCHEM YANTAI CROP NUTRITION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Chinese patent 201310549661.5 discloses a compound liquid fertilizer of sugar alcohol calcium magnesium zinc boron and its preparation method and application. For the solubility of alcohol, the organic solvent glycerin and caustic soda, a strong base substance, are added, and the sugar alcohol needs to be heated with glycerin, caustic alkali and water before adding organic calcium, organic magnesium, and organic zinc. Easy to operate, brings complexity and danger to operation

Method used

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  • Preparation method of sugar alcohol chelated medium trace element liquid fertilizer
  • Preparation method of sugar alcohol chelated medium trace element liquid fertilizer
  • Preparation method of sugar alcohol chelated medium trace element liquid fertilizer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] (1) Add 200Kg of pure water to the first reactor, turn on the stirring, control the temperature in the reactor at 80°C, add 10Kg of xylitol, 30Kg of sorbitol and 60Kg of mannitol, and stir rapidly for 1 hour.

[0034] (2) Add 608Kg of calcium nitrate, 50Kg of calcium acetate and 105Kg of calcium citrate to step (1) and keep stirring at 80°C.

[0035](3) After the calcium salt is completely dissolved, add 569Kg of magnesium nitrate into the reaction kettle, keep stirring at 80°C for 2 hours, and make mother liquor A.

[0036] (4) Add 100Kg of pure water into the second reaction kettle, turn on the stirring, control the temperature in the reaction kettle at 80°C, add 10Kg of maltose and 70Kg of mannitol into it, and stir rapidly for 1 hour.

[0037] (4) Add 9Kg of EDTA-Zn, 30Kg of zinc nitrate, and 30Kg of boric acid to it, heat and dissolve for 2 hours, and make mother liquor B.

[0038] (5) Mix the two mother liquors A and B and keep the temperature of the system at 60...

Embodiment 2

[0041] (1) Add 240Kg of pure water to the first reactor, turn on the stirring, control the temperature in the reactor at 80°C, add 10Kg of xylitol, 30Kg of sorbitol and 60Kg of mannitol, and stir rapidly for 1 hour.

[0042] (2) Add 980Kg of calcium nitrate, 50Kg of calcium acetate and 105Kg of calcium citrate to it, keep the temperature at 80°C and stir for 2 hours to make mother liquor A.

[0043] (3) Add 100Kg of pure water into the second reaction kettle, turn on the stirring, control the temperature in the reaction kettle at 80°C, add 10Kg of maltose and 70Kg of mannitol into it, and stir rapidly for 1 hour.

[0044] (4) Add 9Kg of EDTA-Zn, 30Kg of zinc nitrate, and 30Kg of boric acid to it, heat and dissolve for 2 hours, and make mother liquor B.

[0045] (5) Mix the two mother liquors A and B and keep the temperature of the system at 60° C. and stir for 1 hour.

Embodiment 3

[0047] (1) Add 230Kg of pure water to the first reactor, turn on the stirring, control the temperature in the reactor at 80°C, add 10Kg of xylitol, 30Kg of sorbitol and 60Kg of mannitol, and stir rapidly for 1 hour.

[0048] (2) Add 500Kg of calcium nitrate and 105Kg of calcium citrate to it and keep stirring at 80°C.

[0049] (3) After the calcium salt is completely dissolved, add 620Kg of magnesium nitrate into the reaction kettle, keep stirring at 80°C for 2 hours, and make mother liquor A.

[0050] (4) Add 100Kg of pure water into the second reaction kettle, turn on the stirring, control the temperature in the reaction kettle at 80°C, add 10Kg of maltose and 70Kg of mannitol into it, and stir rapidly for 1 hour.

[0051] (5) Add 9Kg of EDTA-Zn, 30Kg of zinc nitrate, and 30Kg of boric acid to it, heat and dissolve for 2 hours, and make mother liquor B.

[0052] (6) Mix the two mother liquors A and B and keep the temperature of the system at 60° C. and stir for 1 hour.

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Abstract

The invention discloses a preparation method of a sugar alcohol chelated medium trace element liquid fertilizer, comprising the following steps: respectively using medium elements and trace elements in two reaction vessels to prepare mother liquor under different conditions and in presence of a chelating agent, mixing the two mother liquors and stirring, carrying out secondary chelating, and cooling to room temperature. The liquid fertilizer comprises the following substances (by weight): 3-10% of sugar alcohol, 0.5-3% of potassium citrate, 30-50% of calcium nitrate, 0-6% of calcium acetate, 0-8% of calcium citrate, 0-50% of magnesium nitrate, 2.5-5% of zinc nitrate, 1-3% of boric acid, 0.5-2% of organoboron, 0-2.5% of EDTA-Zn and the rest of water. The technology is simple. By the method of firstly respectively chelating and mixing medium trace elements for secondary chelating, better chelating degree can be achieved at low temperature. Meanwhile, the product has good solubility and meets requirements of sprinkling and dropping irrigation equipment. In addition, the sugar alcohol chelating technology is beneficial to crop absorption and utilization and can be widely promoted.

Description

technical field [0001] The invention belongs to the field of fertilizer production, and in particular relates to a method for preparing a liquid fertilizer of trace elements in sugar alcohol chelation. Background technique [0002] Calcium is the main component of pectin calcium. Pectin calcium in crops helps the development of cell walls, can promote the division of cells in crops, and has a good effect on the transformation of carbohydrates and nitrogen metabolism. Calcium can eliminate some ions (such as NH 4 + 、H + 、Al 3+ 、Na + ) toxic effects on crops. In addition, calcium in soil can improve soil structure and reduce soil acidity, which is beneficial to the activities of soil microorganisms and can increase the availability of phosphorus. Therefore, calcium is not only an essential nutrient for crops, but also plays a role in improving soil. [0003] Magnesium is the main component of chlorophyll, which can promote the activation of phosphatase and glucose inver...

Claims

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Application Information

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IPC IPC(8): C05G3/00A01C21/00
CPCA01C21/00C05D3/00C05G3/00C05G5/23C05D5/00C05D9/02
Inventor 孙忠鹏王岩王绪涛
Owner SINOCHEM YANTAI CROP NUTRITION
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