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Coating controlled-release carbon dioxide air fertilizer and preparation method thereof

A slow-release technology of carbon dioxide and coating, which is applied in the direction of carbon dioxide production of fertilizers, inorganic fertilizers, fertilization devices, etc., can solve the problems of insufficient shelf life and easy self-reaction, and achieve the effect of prolonging storage time and improving disease resistance

Active Publication Date: 2013-07-10
SHANDONG ZOETICLAND BIOLOGICAL TECH
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Problems solved by technology

[0002] Carbon dioxide gas fertilizer is an indispensable fertilizer for modern protected cultivation. The inventor first invented a preparation method of granular carbon dioxide gas fertilizer CN1807361. This invention provides a mixture of aluminum sulfate and calcium carbonate in a certain proportion. The method of preparing carbon dioxide gas fertilizer by pellets, although the carbon dioxide prepared by this method has the advantages of convenient transportation, storage and use compared with the method of using liquid acid and carbonate to prepare carbon dioxide, it is found in practice that it is easy to react by itself, and the shelf life is not long enough Shortcomings

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Embodiment 1, a kind of preparation method of coating slow-release carbon dioxide gas fertilizer, comprises the following steps: A. light calcium carbonate granulation: light calcium carbonate is added the lime slurry of water content 80% by weight 1-3% and evenly Extrude and granulate after stirring, with a particle size of 1.5-2mm, and dry for later use;

[0016] B. Preparation of coating agent: add 95 kg of water in the container, first turn on the agitator, and slowly add sodium carboxymethylcellulose under full stirring until it is completely dissolved and transparent, then continue to add, add 5 kg in total, add After finishing, also continue to stir for 2 hours, place 10-20 hours, stand-by,

[0017] C. coating: calcium carbonate granules are added to the agitator, and the coating agent obtained in step B is added in a stirring state, and the addition is 1-2% of the weight of the calcium carbonate granules, and the coating is evenly completed after stirring, and t...

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Abstract

The invention discloses a coating controlled-release carbon dioxide air fertilizer and a preparation method thereof, which belongs to fertilizers and fertilizer preparation methods, particularly fertilizers capable of producing carbon dioxide and preparation methods thereof. According to the preparation method, aluminum sulfate and light calcium carbonate are respectively pelleted and coated and then are uniformly mixed in parts by weight ratio of 2.2:1, the mixture is packaged in a sealing manner, and the two raw materials of the product are respectively coated so as to be separated in the storage and transportation process and be prevented from reacting, so that the storage time of the product can be effectively prolonged. The coating controlled-release carbon dioxide air fertilizer is uniform in particle and long in quality guarantee period and can react to give off pure carbon dioxide when encountering water. The preparation method has the characteristics of time and labor saving, economy, practicability and the like.

Description

technical field [0001] The invention belongs to fertilizer and its preparation method, in particular to the fertilizer which produces carbon dioxide and its preparation method. Background technique [0002] Carbon dioxide gas fertilizer is an indispensable fertilizer for modern protected cultivation. The inventor first invented a preparation method of granular carbon dioxide gas fertilizer CN1807361. This invention provides a mixture of aluminum sulfate and calcium carbonate in a certain proportion. The method of preparing carbon dioxide gas fertilizer by pellets, although the carbon dioxide prepared by this method has the advantages of convenient transportation, storage and use compared with the method of using liquid acid and carbonate to prepare carbon dioxide, it is found in practice that it is easy to react by itself, and the shelf life is not long enough Shortcomings. Contents of the invention [0003] The purpose of the present invention is to overcome the shortcom...

Claims

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Application Information

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IPC IPC(8): C05D7/00
Inventor 王维超
Owner SHANDONG ZOETICLAND BIOLOGICAL TECH
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