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Method for producing special large-particle slow release fertilizer for oil palm

A production method and technology of slow-release fertilizer, which are applied in the field of special slow-release fertilizer for large-particle oil palm, can solve the problems of inconvenient operation and inability to supply, and achieve the effects of uniform particles, less material return and short process flow

Active Publication Date: 2013-03-20
ZHENGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When fertilizing, the weight of nutrients that each adult oil palm tree needs to fertilize is fixed, so it is necessary to weigh a certain weight of fertilizer for fertilization, which is inconvenient to operate
The nutrients of ordinary slow-release fertilizers are not proportioned according to the nutrient ratio required by oil palm, so they cannot be supplied according to the nutrients required for oil palm growth.

Method used

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  • Method for producing special large-particle slow release fertilizer for oil palm

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example 1

[0024] Configuration of coating material: 3.5 kg of ethylene glycol dimethacrylate, 25 kg of methyl methacrylate, 5 kg of butyl methacrylate, 1 kg of neoprene, ethylene glycol-maleic anhydride unsaturated polyester Mix 0.25 kg, 15 kg of styrene, 0.075 kg of paraffin, and 1.5 kg of benzoyl peroxide paste for use.

[0025] First, add 299 kg of granular urea preheated to 80 degrees into the drum coater. After the material is rotated evenly and continuously, the above-mentioned coating material is evenly added for coating; after the coating is completed, 114 kg of monoammonium phosphate (containing Nitrogen 11%, phosphorus pentoxide 44%), bitter soil 58.6 kg (magnesium oxide content 70%), potassium chloride 417 kg (potassium oxide content 60%), copper sulfate pentahydrate 21 kg (containing copper sulfate pentahydrate 95 %), 15 kg of borax (containing 95% of borax), and 24 kg of zinc sulfate heptahydrate (containing 95% of zinc sulfate heptahydrate), mix them evenly, and add the mi...

example 2

[0027] Configuration of coating material: 5 kg of ethylene glycol dimethacrylate, 30 kg of methyl methacrylate, 7 kg of butyl methacrylate, 2 kg of neoprene, ethylene glycol-maleic anhydride unsaturated polyester Mix 0.5 kg, 20 kg of styrene, 0.05 kg of paraffin, and 1 kg of benzoyl peroxide paste for use.

[0028] First, add 272 kg of granular urea preheated to 75 degrees into the drum coater, adjust the angle and rotation speed of the drum coater to make the material flow and distribute evenly, and then evenly add the above-mentioned coating material for coating; Then, 228 kg of monoammonium phosphate (containing 11% nitrogen and 44% phosphorus pentoxide), 40.35 kg of bitter soil (75% of magnesium oxide), 334 kg of potassium chloride (60% of potassium oxide), and pentahydrate were added in turn. 21 kg of copper sulfate (containing 95% copper sulfate pentahydrate), 15 kg of borax (containing 95% of borax), and 24 kg of zinc sulfate heptahydrate (containing 95% of zinc sulfate...

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Abstract

The invention discloses a method for producing a special large-particle slow release fertilizer for oil palm, belonging to the technical field of fertilizer manufacture. The method comprises the steps of: firstly, coating particular urea preheated to 50-100 DEG C by adopting a coating material in a drum coating machine; after coating is completed, adding monoammonium phosphate, magnesium oxide, potassium chloride, copper sulfate pentahydrate, sodium borate and zinc sulfate, uniformly stirring, adding a mixture into an extruding and pelleting machine for extruding and pelleting; and placing and curing the pelleted semi-finished special slow release fertilizer at a temperature of 50-80 DEG C for 20-30h, and then naturally cooling and sieving to obtain the finished product of the special large-particle slow release fertilizer. The special large-particle slow release fertilizer for oil palm, with the diameter of 10-60mm and the weight of 10-200g, can be produced according to the size of a mould of the extruding and pelleting machine. The method has the advantages of short process, less returned materials, and convenience and flexibility in operation. The special slow release fertilizer has the characteristics of high particle uniformity, high strength and no powderization.

Description

technical field [0001] The invention relates to a production method of a special slow-release fertilizer for large-particle oil palm, belongs to the technical field of fertilizer manufacturing, and specifically relates to the production of a special-purpose slow-release fertilizer for large-particle oil palm by using urea, monoammonium phosphate, potassium chloride and the like as main raw materials Techniques for slow-release fertilizers. Background technique [0002] Palm oil is the second largest edible vegetable oil in the world. The unit output is 6 to 11 times that of other vegetable oil crops such as soybean, cottonseed and peanut. In the past 20 years, the worldwide increase in demand for vegetable oil and the continuous innovation of oil palm cultivation and processing technology have greatly promoted the development of the oil palm industry, resulting in a rapid increase in the total output of palm oil in the world. The largest variety of oils and fats. [0003]...

Claims

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Application Information

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IPC IPC(8): C05G3/08C05G3/90
Inventor 张文辉谷守玉万亚珍
Owner ZHENGZHOU UNIV
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