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Preparation method of phosphorus ammonium compound fertilizer

A compound fertilizer and ammonium phosphate technology, which is applied in ammonium orthophosphate fertilizer, phosphate fertilizer, alkaline orthophosphate fertilizer, etc., can solve the problems of increased cost and lack of fertilizer, and achieve the effects of preventing loss, improving soil, and improving hydrophobicity

Inactive Publication Date: 2018-09-21
GUIYANG KAILIN FERTILIZER CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there are separate sulfur-containing fertilizers and silicon-containing fertilizers on the market, but there is a serious shortage of fertilizers containing both elements
Applying sulfur fertilizer or silicon fertilizer alone cannot make rice, corn, wheat and other crops achieve the ideal growth state, and using these two fertilizers at the same time will increase the cost

Method used

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  • Preparation method of phosphorus ammonium compound fertilizer

Examples

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Effect test

Embodiment 1

[0021] A preparation method for ammonium phosphate compound fertilizer, comprising the following steps:

[0022] (1) Sodium silicate, potassium fulvic acid, sodium lauryl sulfate are mixed with water, heated to make a very mixed solution, cooled, and set aside;

[0023] (2) adding the sulfur powder and the mixed solution into the wet milling system, and sieving after wet milling, the mixed material with a solid content of 40%;

[0024] (3) The mixed material is transported to the reactor of the diammonium phosphate plant to react with the ammonium phosphate slurry to make the mixed slurry;

[0025] (4) Part of the mixed slurry is sent to the reactor of the diammonium phosphate plant as a return material, and the remaining slurry is sent to the diammonium phosphate granulator for granulation to obtain pellets.

[0026] (5) The pellets are finally dried in a drier until the water content is lower than 3%, and then sieved and crushed to obtain ammonium phosphate compound fertili...

Embodiment 2

[0034] A preparation method for ammonium phosphate compound fertilizer, comprising the following steps:

[0035] (1) Sodium silicate, potassium fulvic acid, sodium lauryl sulfate are mixed with water, heated to make a very mixed solution, cooled, and set aside;

[0036] (2) adding the sulfur powder and the mixed solution into the wet milling system, and sieving after wet milling, the mixed material with a solid content of 46%;

[0037] (3) The mixed material is transported to the reactor of the diammonium phosphate plant to react with the ammonium phosphate slurry to make the mixed slurry;

[0038] (4) Part of the mixed slurry is sent to the reactor of the diammonium phosphate plant as a return material, and the remaining slurry is sent to the diammonium phosphate granulator for granulation to obtain pellets.

[0039] (5) The pellets are finally dried in a drier until the water content is lower than 3%, and then sieved and crushed to obtain ammonium phosphate compound fertili...

Embodiment 3

[0047] A preparation method for ammonium phosphate compound fertilizer, comprising the following steps:

[0048] (1) Sodium silicate, potassium fulvic acid, sodium lauryl sulfate are mixed with water, heated to make a very mixed solution, cooled, and set aside;

[0049] (2) adding the sulfur powder and the mixed solution into the wet milling system, and sieving after the wet milling, the mixed material with a solid content of 60%;

[0050] (3) The mixed material is transported to the reactor of the diammonium phosphate plant to react with the ammonium phosphate slurry to make the mixed slurry;

[0051] (4) Part of the mixed slurry is sent to the reactor of the diammonium phosphate plant as a return material, and the remaining slurry is sent to the diammonium phosphate granulator for granulation to obtain pellets.

[0052] (5) The pellets are finally dried in a drier until the water content is lower than 3%, and then sieved and crushed to obtain ammonium phosphate compound fer...

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Abstract

The invention belongs to the technical field of fertilizer, and particularly relates to a preparation method of phosphorus ammonium compound fertilizer. The method is characterized in that a production technology for producing diammonium phosphate is improved; in a production process, sulphur and sodium silicate are added for providing sulfur element and silicon element for the fertilizer; the sulphur, the sodium silicate, potassium fulvate, lauryl sodium sulfate and water are prepared into a mixed material; the mixed material and phosphorus ammonium slurry react to prepare mixed slurry; then,through pelletizing and drying, the phosphorus ammonium compound ofertilizer is prepared. The phosphorus ammonium compound fertilizer prepared by the method has the advantages that nitrogen, phosphorus, potassium, silicon and sulfur elements can be provided for the crop growth; the phosphorus ammonium compound fertilizer belongs to fertilizer with rich nutritional ingredients; a good promotion effect is achieved on the growth of crops such as rice, corn and wheat; the crop yield can be improved; the crop disease resistant capability is enhanced; a good slow release effect is achieved; the utilization rate of various elements in the fertilizer is improved; meanwhile, soil can be improved.

Description

technical field [0001] The invention relates to the technical field of fertilizers, in particular to a preparation method of ammonium phosphate compound fertilizer. Background technique [0002] Sulfur is an important component of sulfur-containing proteins in plants, and about 90% of sulfur exists in sulfur-containing amino acids such as cystine and methionine. Sulfur is also a component of lipase, carboxylase, aminotransferase, phosphorylase, etc. in plants, and participates in the composition of certain biologically active substances such as thiamine, coenzyme A, acetyl coenzyme A, etc. Sulfur also promotes nodulation and nitrogen fixation in legumes. In addition, some sulfur fertilizers also have the effect of improving soil properties. The lack of sulfur will have a serious impact on the growth of certain crops such as rice, corn, and wheat. [0003] Silicon is also one of the important elements of plant composition. Its role is second only to nitrogen, phosphorus a...

Claims

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Application Information

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IPC IPC(8): C05G3/00C05G3/04C05G3/80
CPCC05B7/00C05G3/80C05G5/12C05D9/00C05D9/02C05F11/02C05G3/00
Inventor 吴有丽项双龙廖吉星何润林罗付浪徐立钦王采艳唐丽君韩朝应何花蒋学华
Owner GUIYANG KAILIN FERTILIZER CO LTD
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