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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

Experimental program
Comparison scheme
Effect test

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 controlled-release oxidizing agent with calcium peroxide as a matrix and tung oil as a coating and a preparation method. The controlled-release oxidizing agent is prepared from 60% calcium peroxide, binder, attapulgite, the pure boiled tung oil and talcum powder. The preparation method comprises the steps that firstly, 60% calcium peroxide raw powder is granulated, wherein 1, seediness, 2, granulating and 3, drying, taking out for cooling, sealing and storing in darkness are carried out; secondly, calcium peroxide granules are coated, wherein 1, a bottom-spraying fluidized bed coating machine is prepared and turned on; 2, coating liquid is prepared, and the pure boiled tung oil is heated and stirred evenly; 3, enveloping is conducted, the granulated calcium peroxide granules are weighed until all the enveloping liquid is sprayed; 4, drying is carried out, the coated granules in the bottom-spraying fluidized bed are dried, a heating device of the bottom-spraying fluidized bed is turned off, the coated granules in the fluidized bed are cooled to the room temperature, and the coated granules are taken out. The controlled-release oxidizing agent can effectively solve the oxygen releasing time problem of calcium peroxide in a gleying rice field, improves the growing environment of rice in the gleying rice field, and is high in application and popularization prospect.

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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