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Modified biological wax coated controlled-release fertilizer and preparation method thereof

A technology for controlled-release fertilizers and biological waxes, which is applied to organic fertilizers, fertilizer mixtures, fertilization devices, etc., can solve problems such as the inability to achieve slow-release and controlled-release effects and the inability to achieve thickness, and achieve simple production processes, low prices, and low investment. Effect

Active Publication Date: 2017-02-08
SHANDONG AGRI UNIV FERTILIZER TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using biological wax alone to coat fertilizers cannot reach a certain thickness, nor can it achieve the required slow and controlled release effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment １

[0025] Add 16KG of palm wax into the container for heating and melting, keep at 100°C, add 2KG of polyisobutylene and 2KG of petroleum resin, and keep stirring for 5-10 minutes to prepare the modified biological wax coating agent A.

[0026] Add 10KG palm wax into the container for heating and melting, keep at 100°C, add 2KG polyisobutylene, 2KG petroleum resin, 1KG paraffin, and keep stirring for 5-10 minutes to prepare the modified biological wax coating agent B.

[0027] Add 9KG palm wax into the container for heating and melting, keep at 100°C, add 2KG polyisobutylene, 2KG petroleum resin, 2KG paraffin, and keep stirring for 5-10 minutes to prepare the modified biological wax coating agent C,

[0028] Add 1000KG of 28-12-8 compound fertilizer containing 3-5% humic acid into the drum, turn on the hot air heating system, and heat the fertilizer to 90°C; add the prepared modified biological wax coating agent A, and keep the temperature constant Change, coat for 5-10 minutes; ...

Embodiment 2

[0036] Add 16KG soybean wax into the container for heating and melting, keep at 100°C, add 2KG polyisobutylene, 2KGC5 petroleum resin, and keep stirring for 10-20 minutes to prepare modified biological wax coating agent A.

[0037] Add 14KG soybean wax into the container for heating and melting, keep at 100°C, add 2KG polyisobutylene, 2KGC5 petroleum resin, 2KG paraffin, and keep stirring for 10-20 minutes to prepare the modified biological wax coating agent B.

[0038] Add 12KG soybean wax into the container for heating and melting, keep at 100°C, add 2KG polyisobutylene, 2KGC petroleum resin, 4KG paraffin, and keep stirring for 10-20 minutes to prepare modified biological wax coating agent C,

[0039] Add 1000KG of 24-14-7 compound fertilizer containing 3-5% humic acid into the drum, turn on the hot air heating system, and heat the fertilizer to 90°C; add the prepared modified biological wax coating agent A, and keep the temperature constant Change, coat for 5-10 minutes; af...

Embodiment 3

[0047] Add 16KG of hydrogenated palm oil into a container for heating and melting, keep at 100°C, add 2KG of ethylene-vinyl acetate copolymer, 2KG of petroleum resin, and 2KG of quartz powder and keep stirring for 5-10 minutes to prepare the modified biological wax coating agent A.

[0048] Add 10KG hydrogenated palm oil into the container for heating and melting, keep at 100°C, add 2KG ethylene-vinyl acetate copolymer, 2KG petroleum resin, 1KG paraffin, 2KG quartz powder and keep stirring for 5-10 minutes to prepare the modified biological wax coating Agent B,

[0049] Add 9KG hydrogenated palm oil into the container for heating and melting, keep at 100°C, add 2KG ethylene-vinyl acetate copolymer, 2KG petroleum resin, 2KG paraffin, 2KG quartz powder and keep stirring for 5-10 minutes to prepare the modified biological wax coating Agent C,

[0050] Add 1000KG of 27-8-10 compound fertilizer containing 3-5% humic acid into the drum, turn on the hot air heating system, and heat ...

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PUM

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Abstract

The invention discloses a modified biological wax coated controlled-release fertilizer and a preparation method thereof; the preparation method comprises the steps: firstly, melting biological wax, then adding a modifier, and modifying to change the melting point and toughness; then taking the modified biological wax as a coating material to coat the surface of 2-5 mm fertilizer particles, and coating for a plurality of times according to different melting points; and finally, cooling to prepare the coated controlled-release fertilizer, wherein the weight of the coating material accounts for 1%-10% of the total weight of the fertilizer. Compared with ordinary controlled-release fertilizer, the modified biological wax coated controlled-release fertilizer has the advantages of environmental-protection and no-toxic film material, simple production process, low investment, low energy consumption in the production process and the like.

Description

technical field [0001] The invention relates to the technical field of slow and controlled release fertilizers and their preparation, in particular to a modified biological wax-coated slow and controlled release fertilizers and a preparation method thereof. Background technique [0002] All countries in the world are aiming at the problems of low utilization rate of ordinary chemical fertilizers, easy loss and environmental pollution during use, and have developed nutrient controlled release or slow release fertilizers. Realize labor-saving and high-efficiency one-time fertilization, and can greatly improve the utilization rate of fertilizer. Slow and controlled release fertilizer is a new type of fertilizer produced to meet the needs of sustainable agricultural development. [0003] At present, the coating materials used for slow and controlled release fertilizers at home and abroad mainly come from petrochemical and other non-renewable raw materials, such as: polyethylene...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05G3/04C05G3/80
CPCC05F11/02
Inventor 丁方军孟庆羽马学文尹秀波陈士更陈卫民吴钦泉于建洪丕征张娟朱军朱福军郭新送路艳艳吴凤林张宏陈光峰
Owner SHANDONG AGRI UNIV FERTILIZER TECH CO LTD
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