Controlled-release oxidizing agent with calcium peroxide as matrix and tung oil as coating and preparation method

A calcium peroxide and oxidant technology, applied in chemical instruments and methods, other chemical processes, organic fertilizers, etc., can solve the problems of short oxygen release time, unable to meet the demand for oxygen, etc. Oxygen time problem and the effect of improving rice growth environment

Inactive Publication Date: 2016-08-17
HUNAN SOIL & FERTILIZER INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the release time of calcium peroxide in the gleization paddy field is short, which cannot meet the demand for oxygen in the middle and late stages of rice growth.

Method used

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  • Controlled-release oxidizing agent with calcium peroxide as matrix and tung oil as coating and preparation method
  • Controlled-release oxidizing agent with calcium peroxide as matrix and tung oil as coating and preparation method
  • Controlled-release oxidizing agent with calcium peroxide as matrix and tung oil as coating and preparation method

Examples

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Embodiment 1

[0045] A kind of slow-release oxidant that takes calcium peroxide as matrix tung oil as coating, and it is made of the raw material of following weight part:

[0046]

[0047] A kind of preparation method that takes calcium peroxide as matrix tung oil as the sustained-release oxidant of coating, its steps are:

[0048] A.60% calcium peroxide raw powder granulation:

[0049] ①Pelleting: Adjust the inclination angle of the disk granulator to 60°, the speed to 30r / min, and the heating device to 40 or 44 or 46 or 48 or 50°C; take 1kg of calcium peroxide raw powder , divided into 10 equal parts, take one part into the disc, quickly use water mist to moisten it and granulate it, the particle size of the small particle is about 0.5mm, take it out for use, repeat the above steps until all 10 parts of powder are granulated .

[0050] ②Granulation: adjust the inclination angle of the disc granulator to 60°, adjust the speed to 30r / min, adjust the heating device to 40 or 44 or 46 or...

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Abstract

The invention discloses a slow-release oxidant with calcium peroxide as the matrix and tung oil as the coating and a preparation method. It is prepared from 60% calcium peroxide, binder, attapulgite, pure tung oil, and talcum powder. The steps are: A. 60% calcium peroxide raw powder granulation: ① granulation; ② granulation; ③ drying: take out and cool, seal, and store in the dark. B. Calcium peroxide granule coating: ①Preparation of bottom spray fluidized bed coating machine: start the bottom spray fluidized bed coating machine; ②Preparation of coating liquid: heat pure tung oil and stir evenly; ③Coating: weigh Granulated calcium peroxide particles, until the coating solution is sprayed; ④ drying: dry the coated particles in the bottom spray fluidized bed; close the heating equipment of the bottom spray fluidized bed coating machine, and the fluidized bed The inner coated particles are cooled to room temperature, and the coated particles are taken out. It can effectively solve the problem of oxygen release time of calcium peroxide in the gleization paddy field, improve the growth environment of rice in the gleization paddy field, and has broad prospects for popularization and application.

Description

technical field [0001] The invention belongs to the fields of agricultural ecology, soil improvement and plant nutrition control, and more specifically relates to a slow-release oxidant with calcium peroxide as the substrate and tung oil as the coating, and also relates to a slow-release oxidant with calcium peroxide as the substrate and tung oil as the substrate. The preparation method of the coated slow-release oxidant, the slow-release oxidant can effectively reduce the toxic reducing substances in the gleization paddy field, and can supply oxygen to the rice, and can also improve the soil pH of the acidic gleization paddy field, and improve the quality of the rice in the gleization paddy field. growth environment, the prepared slow-release oxidant is suitable for the improvement of gleization paddy fields when rice is planted in vast gleization paddy areas. Background technique [0002] The gleogenic paddy field is the most common low-yielding field in southern my countr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K17/50C09K101/00C09K109/00
CPCC09K17/50C09K2101/00C09K2109/00
Inventor 董春华苏以荣罗尊长褚飞李万民陈香碧胡亚军洪曦
Owner HUNAN SOIL & FERTILIZER INST
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