Method for preparing ammonia-nitrogen removers

Abstract

The invention discloses a method for preparing ammonia-nitrogen removers. The method includes adding 10-18 parts of trimethylolpropane into a reaction kettle and heating the trimethylolpropane until the trimethylolpropane is molten at the temperature of 60 DEG C; adding 3-5 parts of ethanolamine into the trimethylolpropane, and slowly completely adding 20-40 parts of maleic anhydride into the trimethylolpropane in 1-1.5 hours approximately to obtain mixtures; heating the mixtures until the temperatures of the mixtures reach 100-110 DEG C, carrying out reaction for 3-5 hours and cooling reaction products until the temperatures of the reaction products reach 80-85 DEG C; adding 100 parts of distilled water into the reaction products, dissolving the reaction products to obtain solution and then adding 1-3 parts of dodecanol sodium maleic acid ester into the solution; simultaneously completely dropwise adding 6-12 parts of hydroxypropyl acrylate, 18-30 parts of acrylamide aqueous solution and 3-5 parts of initiator solution into the solution at the temperature of 80-85 DEG C in 3 hours approximately; carrying out heat reaction for 2 hours to obtain first reaction products, heating the first reaction products until the temperatures of the first reaction products reach 90-92 DEG C, carrying out reaction for 0.5 hour to obtain second reaction products, and then cooling the second reaction products until the temperatures of the second reaction products reach 50-60 DEG C; adding 10-15 parts of tetrakis hydroxymethyl phosphonium sulfate-urea condensation products and 2-4 parts of sodium percarbonate into the second reaction products, carrying reaction for 1-1.5 hours to obtain third reaction products, cooling the third reaction products until the temperatures of the third reaction products reach the room temperature and discharging the third reaction products. Compared with the prior art, the method has the advantages that the method includes few technological processes and simple steps and is easy and convenient to implement, accordingly, the ammonia-nitrogen remover preparation efficiency can be improved, and the method has popularization and application value.

Description

technical field [0001] The invention relates to a technology for preparing chemical medicines, in particular to a method for preparing an ammonia nitrogen remover. Background technique [0002] Ammonia nitrogen remover is a general term for agents that specifically remove ammonia nitrogen in wastewater in sewage treatment. The general term for agents that specifically remove ammonia nitrogen in wastewater in sewage treatment. There are two main types of ammonia nitrogen removers. One is chemical agents, and the other is microbial agents. Chemical agents: By adding chemical agents, the ammonia nitrogen in the wastewater undergoes a chemical reaction. There are many such methods with different principles. For example, sodium phosphate and magnesium chloride belong to the conventional precipitation method, MT-501 belongs to the catalytic oxidation method, and chlorine gas belongs to the folding method. Point chlorine addition method, but the ultimate goal is to reduce the amm...

AI Technical Summary

Problems solved by technology

In the prior art, the preparation method of ammonia nitrogen remover is cumbersome and the preparation efficiency is low. Therefore, a new method needs to be born