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Water-soluble fertilizer and preparation method thereof

A technology of water-soluble fertilizers and alkaline substances, applied in the directions of organic fertilizers, inorganic fertilizers, ammonium salt fertilizers, etc., can solve the problems of effective absorption affecting the growth of crops, complex manufacturing process, poor compatibility, etc., to improve yield and The effect of quality, simple preparation method and close connection

Inactive Publication Date: 2018-03-13
RI ZHENG JIU AN SCI BEIJING TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, there are still a series of problems in the fertilizers used in the prior art, such as poor stability, high production cost, complicated manufacturing process, poor compatibility with other fertilizers, affecting the effective absorption of crop growth, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The concrete preparation method of water-soluble fertilizer comprises the steps:

[0035] Dissolve 40 kg of titanium sulfate in 300 kg of water at 60°C, add 80 kg of gluconic acid, and stir for 1 hour at 60°C at a speed of 500 rpm to form a titanium gluconate complex. After aging for 1-3 days, slowly add 120 kg of ammonium hydroxide and stir for 1 hour at 60°C and 1000 rpm. Settled at 50°C for 48h. (Total number of moles of gluconic acid): The number of moles of Ti(IV) was 2.44. The precipitated insoluble matter was filtered off. The filtrate is diluted with water until the concentration of titanium ions is 10.0g / L (the determination of the concentration of titanium ions can be carried out according to the method specified in the industry standard NYT 2879-2015 "Determination of Cobalt and Titanium Content in Water-Soluble Fertilizers" 5.2 Titanium Content Plasma Emission Spectroscopy conduct).

[0036] Take 2.0ml of the water-soluble fertilizer of the above-mention...

Embodiment 2

[0048] The concrete preparation method of water-soluble fertilizer comprises the steps:

[0049] Dissolve 40 kg of titanyl sulfate in 300 kg of water at 25°C, add 120 kg of gluconolactone, and stir for 1 hour at 25°C with a rotation speed of 500 rpm to form a titanium gluconate complex. After aging for 1-3 days, slowly add 36 kg of potassium hydroxide and stir for 1 hour at 25°C and 1000 rpm. Settle at 50°C for 24h. (Total number of moles of gluconolactone): The number of moles of Ti(IV) was 3.67. The precipitated insoluble matter was filtered off. The filtrate was diluted with water to a titanium ion concentration of 10.0g / L (the mass ratio of titanyl sulfate to water was controlled between (4-30):1). Then add this filtrate to the liquid ammonium salt solution of EDTA chelated zinc, manganese, iron and magnesium (the content of elements Mn+Zn+Fe+Mg≥100g / L), the addition ratio is 1:2, and mix well.

[0050] The water-soluble fertilizer of the above-mentioned Example 2 was ...

Embodiment 3

[0053] The concrete preparation method of water-soluble fertilizer comprises the steps:

[0054] Dissolve 40 kg of titanyl sulfate and titanium sulfate together in 300 kg of water at 40°C, add 160 kg of gluconolactone, stir for 3 hours at 40°C and 700 rpm to form a titanium gluconate complex. After aging for 1-3 days, slowly add 36 kg of triethanolamine, and stir for 1 hour at 50°C and 1500 rpm. Settled at 50°C for 30h. (Total number of moles of gluconolactone): The number of moles of Ti(IV) was 4.88. The precipitated insoluble matter was filtered off to remove most of the sulfate ions. Heat the filtrate to evaporate and concentrate until the weight decreases by about 40%, then switch to vacuum drying at 80°C, take it out when it is dried into a paste, and cool it to a solid. Then add this solid to the mixture of solid powdery EDTA chelated zinc, manganese, iron, potassium salt of magnesium and sodium octaborate (element content Mn+Zn+Fe+B+Mg≥20%), add Ratio 1:4, mix and p...

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Abstract

The invention provides water-soluble fertilizer and a preparation method thereof. The water-soluble fertilizer is mainly composed of titanium gluconate complex and alkaline substance, wherein the titanium gluconate complex is prepared from gluconic acid substance and titanium compound according to a coordination molar ratio of (2-5):1. The preparation method includes: (A), enabling the gluconic acid substance and the titanium compound to be in coordination, and allowing reaction at 25-60 DEG C for 1-3h to obtain the titanium gluconate complex; (B), aging for 1-3d, neutralizing, settling, filtering, and adding other substances to obtain the water-soluble fertilizer. Gluconic acid is used as a ligand to coordinate with titanium ions to form titanium gluconate complex functional fertilizer. The fertilizer is nontoxic, can be better absorbed and utilized by crops, is environment-friendly, more reasonable in element proportioning, capable of improving yield and quality of the crops and freeof causing soil caking and has the advantages of being capable of managing soil and environment-friendly.

Description

technical field [0001] The invention relates to the field of fertilizer processing, in particular to a water-soluble fertilizer and a preparation method thereof. Background technique [0002] Regarding the application of element titanium in agriculture, there have been many research reports on the application of element titanium in agriculture. It has been proved that titanium-containing fertilizer is a broad-spectrum, low-use functional fertilizer, which has a good promotion effect on the physiological activities of plants, can improve the absorption of various nutrients by plants, and enhance plant resistance to disease and stress. ability, increase crop yield, and improve crop quality, so titanium-containing fertilizer is a promising new type of fertilizer. Due to the unstable properties of inorganic titanium salts, it is easy to decompose into water-insoluble titanium dioxide under natural conditions, which cannot be absorbed and utilized by plants. At present, a variet...

Claims

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Application Information

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IPC IPC(8): C05G3/04C05G3/80C05G5/20
CPCC05C3/00C05C11/00C05G5/20C05G3/80C05D9/02C05D1/00C05F11/00
Inventor 家新发付荣伟马玲
Owner RI ZHENG JIU AN SCI BEIJING TECH CO LTD
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