Slow-release oil-basedammonium bicarbonate

Abstract

The invention disclosesslow-release oil-basedammonium bicarbonate. Firstly, chaff is crushed, the fineness of thechaff is controlled to be within 20-30 meshes, then the crushed powdery chaff is dried and carbonized at the temperature of 350-400 DEG C for 20-25 min, themoisture content of dried and carbonized powdery chaff materials is in a range of 10-15%, finally, the dried and carbonized powdery chaff materials and powdery ammonium bicarbonate are evenly mixed as well as separated and dehydrated by a high-speed centrifuge to become finished products, and the weight part ratio of the dried and carbonized powdery chaff materials to the powdery ammonium bicarbonate is 1:(5-6). The slow-release oil-basedammonium bicarbonate has the advantages as follows: long-stem storage of the products is facilitated; thevolatilization speed of the ammonium bicarbonate is greatly decreased, so that the fertilizer efficiency period of the products is effectively prolonged; theresidual dried and carbonized powdery chaff is also good potash fertilizer and also has certainfertilizer efficiency.

Description

technical field [0001] The present invention relates to the technical field of fertilizers, more specifically to the technical field of ammonium bicarbonate fertilizers. Background technique [0002] Ammonium bicarbonate is referred to as ammonium bicarbonate for short, and its nitrogen content is about 17%. The pure product is a white powdery crystal, and the industrial product is slightly gray and has an ammonia smell. Ammonium bicarbonate generally has a water content of 5% to 6%. It is easy to deliquesce and agglomerate. It is relatively stable when the temperature is below 20°C. When the temperature is slightly higher or the moisture in the product exceeds a certain standard, ammonium bicarbonate will decompose into ammonia gas. And carbon dioxide, if the gas escapes in the air, it will cause the loss of nitrogen fertilizer efficiency, and the utilization rate of nitrogen will be greatly reduced. Therefore, ammonium bicarbonate not only needs to be sealed and kept at a ...

AI Technical Summary

Problems solved by technology

Ammonium bicarbonate generally has a water content of 5% to 6%. It is easy to deliquesce and agglomerate. It is relatively stable when the temperature is below 20°C. When the temperature is slightly higher or the moisture in the product exceeds a certain standard, ammonium bicarbonate will decompose into ammonia gas. And carbon dioxide, if the gas escapes in the air, it will cause the loss of nitrogen fertilizer efficiency, and the utilization rate of nitrogen will be greatly reduced. Therefore, ammonium bicarbonate not only needs to be sealed and kept at a low temperature during its storage, but also be used After being applied to the field, due to deliquescence and volatilization, its fertilizer effect period is also short, and it cannot exert its fertilizer effect in the field for a long time