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Highly-efficient biomass charcoal coated fertilizer and preparation method thereof

A biomass charcoal, coating technology, applied in fertilizer mixtures, fertilization devices, applications, etc., can solve the problems of restricting the popularization and application of fertilizers, high price, environmental pollution, etc., and achieve excellent slow-release effect, high cost performance, and obvious effect. Effect

Inactive Publication Date: 2015-10-14
MAANSHAN KEBANG ECO FERTILIZER
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, most of them use fat-soluble substances in the production process, which is easy to pollute the environment after application, and the price is expensive, which limits the popularization and application of this type of fertilizer.

Method used

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  • Highly-efficient biomass charcoal coated fertilizer and preparation method thereof
  • Highly-efficient biomass charcoal coated fertilizer and preparation method thereof

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Embodiment 1

[0026] A high-efficiency biochar-coated fertilizer is characterized in that it is made of the following raw materials in parts by weight (kg): walnut shells 25, bagasse 10, bamboo 15, urea 22, 1mol / L dilute hydrochloric acid solution 100, humic Ammonium acid 10, potassium sulfate 20, ferrous sulfate 6, calcium hydrogen phosphate 25, clay 10, zinc chloride 8, binder 4 and an appropriate amount of water;

[0027] The binder is made of the following raw materials in parts by weight: polyvinyl alcohol 14, limestone powder 3, coal tar 6, sodium bicarbonate 1, chitin 2, sodium dodecylbenzene sulfonate 2, tributyl phosphate 0.5, ethanol 8 and water 50; the preparation method is to mix and dilute ethanol and water in a reaction kettle, then add coal tar, sodium dodecylbenzenesulfonate, sodium bicarbonate and tributyl phosphate, and heat to 70~ Stir at 80°C at a constant temperature of 350-600r / min for 30-40min, let it stand for 20min under heat preservation until the foam disappears, ...

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Abstract

The invention discloses a high-efficient biomass charcoal coated fertilizer and a preparation method thereof. The fertilizer is prepared from the following raw materials by weight: 20 to 35 parts of walnut shells, 8 to 15 parts of bagasse, 12 to 20 parts of moso bamboo, 20 to 26 parts of urea, 80 to 100 parts of a diluted hydrochloric acid solution with a concentration of 1 mol / L, 10 to 15 parts of ammonium humate, 20 to 30 parts of potassium sulfate, 5 to 10 parts of ferrous sulfate, 18 to 25 parts of calcium monohydrogen phosphate, 6 to 10 parts of clay, 6 to 10 parts of zinc chloride, 4 to 5 parts of a binder and a proper amount of water. According to the invention, the walnut shells containing rich lignin, the bagasse and the like are ground into particles with appropriate sizes, and are subjected to high-temperature sealed carbonization so as to obtain a porous activated carbon component, and the porous activated carbon component is combined with polyvinyl alcohol so as to prepare a fertilizer controlled-release coating agent which has excellent controlled-release effect; meanwhile, the obtained granular activated carbon component has the advantages of large sizes, intensive pores, tight structure, insusceptible breakage, durability in use, and higher cost performance; besides, through timely washing with hydrochloric acid, the pores are timely dredged, and more obvious effects are achieved.

Description

technical field [0001] The invention belongs to the technical field of fertilizers, and in particular relates to a high-efficiency biomass charcoal-coated fertilizer and a preparation method thereof. Background technique [0002] Slow-release fertilizers can not only improve fertilizer use efficiency, but also reduce the negative impact of fertilization on the environment, which has attracted extensive attention of scholars in recent years. The current research on coated slow-release fertilizers mainly focuses on the selection and development of coating materials. Organic polymer coated slow-release fertilizers can slow down nutrient release and improve fertilizer use efficiency, which has been widely recognized. [0003] However, most of them use fat-soluble substances in the production process, which is easy to cause pollution to the environment after application, and the price is high, which limits the popularization and application of this type of fertilizer. Therefore,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00
Inventor 王晓亭吴德清陈永山黄会真
Owner MAANSHAN KEBANG ECO FERTILIZER
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