Recovering method of acetone and ammonia in hydrated hydrazine waste salt water by ketone azine method

Abstract

A process for reclaiming the acetone and ammonia from the rejected saline generated in preparing hydrazine hydrate from ammonia, sodium hypochlorite and ketone by oxidizing method includes bubble evaporating, flash evaporating, and returning the recovered acetone and ammonia back to production system of hydrazine hydrate.

Description

technical field

[0001] The invention relates to a method for recovering acetone and ammonia taken away by waste brine in the process of producing hydrazine hydrate by using ammonia, sodium hypochlorite and ketone oxidation method, more specifically, for the acetone and ammonia taken away by waste brine in the distillation process method of recovery and utilization. Background technique

[0002] Hydrazine hydrate, also known as: hydrazine hydrate, chemical formula: N 2 h 4 ·H 2 O, molecular weight: 50.07, is a fine chemical product. As a chemical intermediate, hydrazine hydrate has a wide range of potential uses and application fields, which are mainly divided into three aspects: first, the production of plastic foaming agents; second, in the steam cycle of the power industry, it is used to prevent The pipes are rusted and aged in advance, thereby greatly improving the safety and reliability of the power station; in addition, hydrazine hydrate is also an important raw mat...

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