Potassium nitrate co-production tower-type melt micrograin water-soluble fertilizer and preparing method thereof

A technology of potassium nitrate and micro-grains, which is applied in nitrate fertilizers, potash fertilizers, and ammonium orthophosphate fertilizers, etc. It can solve the problems of fluctuations in nitrogen, phosphorus, and potassium nutrients in products, and achieve the effects of nutrient balance, hardening, and energy saving.

Inactive Publication Date: 2016-06-22
STANLEY AGRI GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The difficulty of chemically synthesizing water-soluble fertilizers is that during the synthesis reaction, the solution of a single substance is easy to grasp, while there are two-phase, three-phase or even more phase circulating solutions, and co-crystallization will occur during the process of low-temperature cooling and crystallization. That is, the product actually forms a relatively complex double salt during the precipitation process, which directly leads to fluctuations in the nutrient content of the product's nitrogen, phosphorus and potassium, and the product will not be precipitated according to the envisaged ratio

Method used

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  • Potassium nitrate co-production tower-type melt micrograin water-soluble fertilizer and preparing method thereof
  • Potassium nitrate co-production tower-type melt micrograin water-soluble fertilizer and preparing method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0041] The microcrystalline water-soluble fertilizer produced by the present invention has the following raw material components, all in parts by weight: 200 parts of potassium nitrate concentrate, 350 parts of urea, 125 parts of industrial monoammonium phosphate, 100 parts of water-soluble ammonium polyphosphate, and 270 parts of potassium sulfate , 1.0 parts of EDTA-Fe, 7.0 parts of EDTA-Zn, 4.0 parts of EDTA-Mn, 3.0 parts of boric acid, and 0.2 parts of ammonium heptamolybdate.

[0042] The specific production process is as follows:

[0043] (1) The urea is melted at high temperature (130°C-140°C), enters the buffer tank, and then pressurized by the delivery pump, and then sent to the mixing tank at the top of the tower after metering.

[0044] (2) The potassium nitrate concentrate produced in the production of potassium nitrate by ion exchange is centrifuged and sent to the agitator through metering pipeline air.

[0045] (3) Pre-mix EDTA-Fe, EDTA-Zn, EDTA-Mn, boric acid,...

Embodiment 2

[0049]Take 300 parts of urea, 180 parts of potassium nitrate concentrate, 2.0 parts of EDTA-Fe, 4.0 parts of EDTA-Zn, 4.0 parts of EDTA-Mn, 5.0 parts of boric acid, 0 parts of ammonium heptamolybdate, 125 parts of industrial monoammonium phosphate, 105 parts Water-soluble ammonium polyphosphate, 325 parts potassium sulfate.

[0050] Concrete production technology is with embodiment 1.

[0051] The obtained product specification is 20-12-24, does not contain molybdenum, contains trace elements, and is water-soluble ammonium polyphosphate.

Embodiment 3

[0053] Take 300 parts of urea, 240 parts of potassium nitrate concentrate, 3.0 parts of EDTA-Fe, 8.0 parts of EDTA-Zn, 6.0 parts of EDTA-Mn, 7.0 parts of boric acid, 1.0 parts of ammonium heptamolybdate, 105 parts of industrial monoammonium phosphate, 90 parts Water-soluble ammonium polyphosphate, 310 parts of potassium sulfate.

[0054] Concrete production technology is with embodiment 1.

[0055] The obtained product has a specification of 20-10-26, contains trace elements, and is water-soluble ammonium polyphosphate.

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Abstract

The invention discloses a potassium nitrate co-production tower-type melt micrograin water-soluble fertilizer and a preparing method thereof and belongs to the technical field of water-soluble fertilizer production. The potassium nitrate co-production tower-type melt micrograin water-soluble fertilizer is prepared from potassium nitrate concentrated solution, urea, industrial monoammonium phosphate, water-soluble ammonium polyphosphate, potassium sulfate, EDTA-Fe, EDTA-Zn, EDTA-Mn, boric acid and ammonium heptamolybdate. The potassium nitrate co-production tower-type melt micrograin water-soluble fertilizer is balanced and stable in nutrient, has a microgranular shape and smooth appearance, is not prone to hardening, can be absorbed and utilized by crops easily, and contains comprehensive nutrients. The fully-automatic dispensing equipment production technology is adopted, dispensing, mixing and packaging are integrated and achieved automatically, the technology is environmentally friendly, energy is saved, and production is easy.

Description

technical field [0001] The invention belongs to the technical field of water-soluble fertilizer production, and in particular relates to a potassium nitrate co-production tower-type melt microcrystalline water-soluble fertilizer and a preparation method thereof. Background technique [0002] Water-soluble fertilizer is a kind of multi-component compound fertilizer. As a quick-acting fertilizer, its effect is obvious, and the formula of fertilizer can be adjusted according to the crops. The more important feature of water-soluble fertilizer is that it can be used almost without labor, which can effectively reduce manpower. Cost, saving water, fertilizer and labor. [0003] my country's water-soluble fertilizer market has broad prospects, and more and more fully water-soluble and fully absorbable water-soluble fertilizers are gradually being accepted by dealers and farmers. This has also greatly encouraged domestic enterprises to actively participate in the research and develo...

Claims

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Application Information

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IPC IPC(8): C05G1/00
CPCC05B7/00C05G5/12C05C3/00C05C5/02C05C9/00C05D1/02C05D9/02C05B11/04C05C5/005C05C9/005C05G3/40C05G1/00
Inventor 高进华冯伟光高祥照卞会涛徐勤政李文平史庆才王婷婷崔然何守学李宁王端刘洪霞张军张飞雷文琪陈祥福禹文龙
Owner STANLEY AGRI GRP CO LTD
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