Multi-functional sugar alcohol calcium leaf fertilizer and preparation method thereof

A technology of sugar alcohol calcium and foliar fertilizer, applied in fertilization devices, fertilizer mixtures, applications, etc., can solve the problems of low utilization rate of calcium nitrate and insufficient supplementation of crops, etc., to solve physiological obstacles and fast absorption of crops , the effect of improving the utilization rate

Inactive Publication Date: 2015-04-08
QINGDAO BRIGHT MOON SEAWEED GROUP
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the utilization rate of calcium nitrate commonly used in vegetable production is low. Even if calcium fertilizer is applied, the crops will not get enough supplement. One key to solve the calcium deficiency of plants is to find a carrier that can transport calcium ions to prevent calcium from being deposited in plants. In vivo fixation

Method used

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  • Multi-functional sugar alcohol calcium leaf fertilizer and preparation method thereof

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preparation example Construction

[0021] Multifunctional sugar alcohol calcium foliar fertilizer of the present invention is prepared by the following method, specifically:

[0022] Use crystalline glucose monohydrate as raw material, dilute with pure water to obtain a glucose solution with a mass concentration of 50-60%; add boric acid to the glucose solution to adjust the pH to 2.5-3.5, and add catalyst molybdate; in a high-pressure hydrogenation kettle The epimerization reaction is carried out to partially convert the glucose into mannose, the conversion rate is 30%-37%, and the solution A is obtained, and the reaction temperature is 115-125°C.

[0023] Add Ca(OH) to the above solution A 2 Adjust the pH to be neutral, add the catalyst Raney nickel, the addition amount is 1-1.5% of the weight of glucose on a dry basis, and carry out the hydrogenation reaction in the high-pressure hydrogenation kettle, and raise the temperature to 120-140°C under the pressure of 8-9MPa The hydrogenation reaction was carried ...

Embodiment 1

[0029] Dilute 5.5kg of crystalline glucose monohydrate to a concentration of 60% with pure water, add boric acid to adjust the pH to 3.5, add catalyst ammonium molybdate 10g, and perform epimerization in a high-pressure hydrogenation kettle at 115°C to partially convert glucose It is mannose, and after the reaction, the content of mannose is 34.5%. solution with Ca(OH) 2 Adjust the pH to 7.0, add 5g of Raney nickel, in the kettle, under the pressure of 8Mpa, heat up to 120°C for hydrogenation reaction for 1 hour, filter to remove the catalyst, the mixed alcohol contains 34.7% of mannitol, 65.1% of sorbitol, add Calcium nitrate 5kg, calcium hydroxide adjust pH to be 8, react under the pressure of 0.3Mpa at 100 ℃ for 1.5 hours, add 300g Tween, stir well, obtain liquid calcium sugar alcohol, as calcium sugar alcohol foliar fertilizer.

Embodiment 2

[0031] Dilute 5.5kg of crystalline glucose monohydrate to a concentration of 55% with pure water, adjust the pH to 3.0 with boric acid, add 15g of catalyst ammonium molybdate, and carry out epimerization in a high-pressure hydrogenation kettle at 120°C to partially convert glucose It is mannose, and after the reaction, the content of mannose is 35.3%. solution with Ca(OH) 2 Adjust the pH to 7.0, add 5g of Raney nickel, in the kettle, under the pressure of 8Mpa, heat up to 130°C for hydrogenation reaction for 2 hours, filter to remove the catalyst, the mixed alcohol contains 34.9% of mannitol, 64.2% of sorbitol, add Calcium nitrate 4.5kg, calcium hydroxide to adjust the pH to 8, react at 130°C under a pressure of 0.3Mpa for 1.5 hours, add 350g OP-10, stir evenly to obtain liquid calcium sugar alcohol, as calcium sugar alcohol foliar fertilizer.

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Abstract

The invention relates to a multi-functional sugar alcohol calcium leaf fertilizer which comprises 20-30 parts by weight of polyol, 15-20 parts by weight of calcium nitrate, molybdate, a boron type compound and the balance of water, wherein the weight of the molybdate is 0.1-2 percent of the weight of the polyol; the weight of the boron type compound is 0.1-2 percent of that of the polyol. A preparation method of the multi-functional sugar alcohol calcium leaf fertilizer comprises the following steps: transforming a glucose solution into mannose by means of partial epimerization; performing hydrogenation reaction to prepare mixed alcohol of mannitol and sorbitol; subsequently allowing the mixed alcohol to react with the calcium nitrate to prepare the multi-functional sugar alcohol calcium leaf fertilizer. The leaf fertilizer disclosed by the invention is good in water solubility, capable of enabling a leaf to absorb abundant calcium elements coexisting in a sugar alcohol complexed state and beneficial for solving physiological barriers caused by the fact that the calcium elements can not reach tender positions easily.

Description

technical field [0001] The invention relates to a water-soluble calcium fertilizer, which belongs to the field of fertilizer processing, in particular to a multifunctional sugar alcohol calcium foliar fertilizer and a preparation method thereof. Background technique [0002] Calcium is an indispensable and irreplaceable medium element in the normal growth and development of plants. It has multiple functions such as stabilizing cell walls, maintaining cell wall structures, regulating plant physiological metabolism and plant growth and development, and regulating osmotic pressure. Usually, plants absorb calcium in the soil through the root system, but the absorption of calcium in the soil is limited by the transpiration force, soil structure, water content, pH, ion balance, transportation distance, etc. The acid and anion groups are fixed, and the poor mobility of calcium can easily cause calcium deficiency in crops. Calcium deficiency in crops can lead to a variety of physio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00
CPCC05G3/00
Inventor 王暖升王海朋纪伟尹宗美
Owner QINGDAO BRIGHT MOON SEAWEED GROUP
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