High tower compound fertilizer slurry viscosity reducer and preparation method thereof

Abstract

The invention relates to a high tower compound fertilizer slurry viscosity reducer and a preparation method thereof. The high tower compound fertilizer slurry viscosity reducer consists of the following components in percentage by mass: 30 to 50 percent of anionic surfactant, 5 to 20 percent of nonionic surfactant and 40 to 50 percent of water. The preparation method comprises the following steps of: dissolving the anionic surfactant in water until solution is uniform to obtain solution 1; and adding the nonionic surfactant into the solution 1 in which the anionic surfactant is completely uniformly dissolved, and stirring until the nonionic surfactant is completely dispersed to obtain the high tower compound fertilizer slurry viscosity reducer. The high tower compound fertilizer slurry viscosity reducer is liquid at normal temperature, totally water-soluble and good in fluidity; and in the using process, the high tower compound fertilizer slurry viscosity reducer can be directly added into fertilizer slurry without being heated, the operation is simple, the dosage is small, only 2 to 3kg of high tower compound fertilizer slurry viscosity reducer is added into each ton of fertilizer to improve the fluidity of the slurry, and the qualified compound fertilizer of a medium nitrogen or low nitrogen formula is produced.

Description

technical field [0001] The invention relates to a high-tower compound fertilizer slurry viscosity reducer and a preparation method thereof. Background technique [0002] High-tower compound fertilizer (full name high-tower granulation compound fertilizer) is one of the new technologies in my country's compound fertilizer production process. Solid urea or ammonium nitrate (ammonium nitrate, phosphorus, etc.) is heated and melted to become a molten liquid, and it can also be directly used after evaporation and concentration. of molten liquid. Add corresponding phosphate fertilizer, potash fertilizer, filler and additives to the molten liquid to make mixed slurry. The mixed slurry is sent to the high-tower granulator for spraying and granulation. The granulated material sprayed into the granulation tower through the granulator interacts with the gas resistance rising from the bottom of the tower during the process of descending from the high-tower. After heat exchange, it fall...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problems that the existing high-tower production technology is difficult to produce compound fertilizer with medium nitrogen or low nitrogen formula, or the produced compound fertilizer with medium nitrogen or low nitrogen formula is of poor quality, excessive water content, easy to knot and fast, etc. , and provide a high-tower compound fertilizer slurry viscosity reducer and its preparation method, the high-tower compound fertilizer slurry viscosity reducer provided by the present invention is liquid and fully water-soluble at room temperature, has good fluidity, and can be used without heating It can be directly added to the fertilizer slurry, the operation is simple, the dosage is small, only 2-3 kg / ton of fertilizer is needed to improve the fluidity of the slurry, and it is easier to produce qualified medium nitrogen or low nitrogen formula. compound fertilizer