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A kind of anti-caking agent for agricultural compound fertilizer and preparation method thereof

An anti-caking agent and compound fertilizer technology, applied in the application, agriculture, fertilization device and other directions, can solve the problem of high production cost, and achieve the effects of low production cost, increased added value, and stable source

Active Publication Date: 2016-03-09
湖北海力环保科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to overcome the problem of high production cost existing in the prior art, to provide a kind of agricultural compound fertilizer anti-caking agent and its preparation method that can significantly reduce production cost

Method used

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Examples

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Effect test

preparation example Construction

[0034] A preparation method of the above-mentioned anti-caking agent for agricultural compound fertilizer, the preparation method comprises the following steps successively:

[0035] Step 1: Add biomass ash and modifier into the screw extruder according to the required ratio for modification to form a modified material, wherein the modification time is 3-6min, and the modification temperature is 90-95°C , the modified pressure is 0.3‐0.6MPa;

[0036] Step 2: Pour the modified material into a cooling cylinder and cool it down to room temperature. At this time, the preparation of the anti-caking agent for agricultural compound fertilizer can be completed.

[0037] The raw material composition of the anti-caking agent also includes a crystal phase control agent, and the mass ratio of the crystal phase control agent to the biomass ash is 2-10:80-96;

[0038] The second step also includes the operation of adding the crystal phase control agent into the cooling cylinder and uniform...

Embodiment 1

[0046] An anti-caking agent for agricultural compound fertilizer, the raw material composition and the weight ratio of the anti-caking agent are: biomass ash 96, modifier 2, crystal phase control agent 2, wherein the biomass ash is biomass The material raw material is used for biomass ash produced after burning power generation in a biomass power plant, the modifier is a mixture of fatty acid sodium, phosphate ester, and paraffin, and the crystal phase control agent is sodium dodecylbenzenesulfonate, dodecylbenzenesulfonate, A mixture of sodium alkyl sulfates.

[0047] When preparing, follow the steps below:

[0048] Step 1: Add biomass ash and modifier into the screw extruder according to the required ratio for modification to form a modified material, wherein the modification time is 3-6min, and the modification temperature is 90-95°C , the modified pressure is 0.3‐0.6MPa;

[0049] Step 2: Pour the modified material and the crystal phase control agent into the cooling cyli...

Embodiment 2

[0051] The steps are the same as in Example 1, except that the mass ratio of the biomass ash, modifier, and crystal phase control agent is 91:4:5, and the modifier is a mixture of fatty acid sodium and paraffin wax. The crystal phase control agent is a mixture of sodium dodecylbenzenesulfonate and sodium dodecylsulfate.

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Abstract

The invention discloses an anti-caking agent for agricultural compound fertilizers. The anti-caking agent comprises the following raw materials in parts by weight: 80-96 parts of biomass ash, 2-10 parts of a modifier, and 2-10 parts of a crystal phase control agent, wherein the modifier is at least one of hydrogenated tallow amine, sodium aliphatate, phosphate and paraffin, and the crystal phase control agent is at least one of sodium dodecylbenzene sulfonate and lauryl sodium sulfate. In the process of preparation, the biomass ash and the modifier are added into a screw extruder in required proportion to carry out modification so as to form a modified material, and then, the modified material and the crystal phase control agent are simultaneously poured into a cooling cylinder; in the process of cooling the modified material, the modified material and the crystal phase control agent are uniformly mixed. According to the invention, the anti-caking effect of the anti-caking agent is improved, and the production cost is reduced.

Description

technical field [0001] The invention belongs to the field of chemical fertilizer additives, and relates to an agricultural compound fertilizer anti-caking agent and a preparation method thereof, which is specifically suitable for reducing production costs and enhancing the anti-caking effect. Background technique [0002] During the storage of compound fertilizer, due to the absorption of water by the compound fertilizer and the migration of water between and within the particles of the compound fertilizer, the compound fertilizer is very easy to agglomerate and pulverize. With the market competition, the market requires that the compound fertilizer cannot be agglomerated and pulverized, so anti-caking agents are generally used to prevent the compound fertilizer from agglomerating. [0003] Powder anti-caking agents generally use inert mineral powders such as talc powder and zeolite powder, which have the characteristics of low cost and convenient use, but these inert powder...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05G3/00
Inventor 林祥斌史铁京潘志国刘建平马继伟
Owner 湖北海力环保科技股份有限公司
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