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Granular carbon dioxide and its preparation method

A carbon dioxide and gas fertilizer technology, which is applied in the production of fertilizers, inorganic fertilizers, and fertilization devices with carbon dioxide, can solve the problems of not very safe, strong acidity of potassium hydrogen sulfate, and easy gas with acid, etc., and achieves safe and convenient transportation and use. The effect of high utilization and simple operation

Inactive Publication Date: 2006-07-26
王维超
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of the above formula are: 1. Potassium bisulfate has a strong acidity and is not very safe to use; 2. Ammonium bicarbonate is unstable and easily decomposes to release ammonia gas
Many farmers use dilute sulfuric acid and ammonium bicarbonate to react to produce carbon dioxide. Although the method is simple, concentrated sulfuric acid is not safe in the process of dilution and use, and the gas is easy to carry acid during the reaction process, causing varying degrees of damage to crops. harm

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] 1. Raw material pretreatment, take 200 kg of aluminum sulfate and pulverize to 100-120 mesh,

[0018] 2. Take 100 kg of light calcium carbonate and heat it to 300°C, then add crushed aluminum sulfate, mix quickly and evenly, transfer the material to a fluidized bed to cool down, and pack it when the temperature drops to 60°C.

Embodiment 2

[0020] 1. Raw material pretreatment, take 220 kg of aluminum sulfate and pulverize to 100-120 mesh,

[0021] 2. Take 100 kg of light calcium carbonate and heat it to 350°C, then add crushed aluminum sulfate, mix quickly and evenly, transfer the material to a fluidized bed to cool down, and pack it when the temperature drops to 30°C.

Embodiment 3

[0023] 1. Raw material pretreatment, take 210 kg of aluminum sulfate and pulverize to 100-120 mesh,

[0024] 2. Take 100 kg of light calcium carbonate and heat it to 250°C, then add crushed aluminum sulfate, mix quickly and evenly, transfer the material to a fluidized bed to cool down, and pack it when the temperature drops to 40°C.

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PUM

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Abstract

The invention discloses a kind of granular form carbon dioxide gaseous fertilizer and method for preparation, wherein the gaseous fertilizer is prepared from the following raw material (by weight portions): aluminum sulfate 2-2.2, light calcium carbonate 1.

Description

Technical field [0001] The invention belongs to a fertilizer for producing carbon dioxide and a preparation method thereof. Background technique [0002] Carbon dioxide gas fertilizer is an indispensable fertilizer for modern protected land cultivation. Generally, the method of producing carbon dioxide is used to supplement the shortage of carbon dioxide in the greenhouse. There are various raw materials and methods used. CN 01139982 discloses an agricultural greenhouse. The preparation method of the carbon dioxide gas fertilizer comprises uniformly mixing ammonium bicarbonate and potassium bisulfate in proportion, and natural chemical reaction at room temperature to generate potassium sulfate, ammonium sulfate, carbon dioxide and water. The disadvantages of the above formula are: 1. Potassium bisulfate has strong acidity and is not very safe to use, 2. Ammonium bicarbonate is unstable in nature and easily decomposes to release ammonia. Many farmers use dilute sulfuric acid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05D7/00
Inventor 王维超
Owner 王维超
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