Technique for producing composite (compound) fertilizer by using liquid mixture of ammonia gas, carbon dioxide and water

Abstract

The process of producing composite fertilizer with the mixture of ammonia, CO2 and water from melamine producing plant, liquid urea plant and other plant includes pumping the mixture to the fertilizer producing shop, mixing, neutralizing, ammoniating and pelletizing to obtain high efficiency composite fertilizer. The present invention has high economic effect and environment friendship.

Description

Technical field: [0001] The invention relates to the field of chemical engineering, in particular to a melamine device or a liquid urine device or other devices that generate a liquid mixture of ammonia, carbon dioxide and water, and a compound (mixed) fertilizer production device. Background technique: [0002] At present, the liquid mixture of ammonia, carbon dioxide and water produced by melamine device or liquid urine device or other devices is directly sold as a commodity. Due to the low price and narrow use, sometimes the sale is not timely. It is prone to overflow, leakage, and illegal discharge, causing environmental pollution and low efficiency. Since the current production of compound fertilizers generally uses pure ammonia as a raw material, the cost is high. If the liquid mixture can be used instead of pure ammonia to produce compound (mixed) fertilizers, the production cost can be greatly reduced, and a new process has been developed at the same time. Inventio...

AI Technical Summary

Problems solved by technology

[0002] At present, the liquid mixture of ammonia, carbon dioxide and water produced by melamine device or liquid urine device or other devices is directly sold as a commodity. Due to the low price and narrow use, sometimes the sale is not timely. It is prone to overflow, leakage, and illegal discharge, causing environmental pollution and low efficiency

Since the current production of compound fertilizers generally uses pure ammonia as a raw material, the cost is relatively high. If the liquid mixture can be used instead of pure ammonia to produce compound (mixed) fertilizers, the production cost can be greatly reduced, and a new process has been developed at the same time.

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