Powdery compound fertilizer anti-caking agent and preparation method thereof

Abstract

The invention discloses relates to a powdery compound fertilizer anti-caking agent and a preparation method thereof. The powdery compound fertilizer anti-caking agent is composed of the following components in percentages by weight: 60 to 90% of inorganic powder and 10 to 40% of an additive. The preparation method for the powdery compound fertilizer anti-caking agent comprises the following steps: adding mineral oil, liquid wax and paraffin into a reaction vessel in proportion, carrying out heating to 95 DEG C, maintaining the temperature for 20 minutes until the mixture is completely dissolved, then carrying out cooling to about 80 DEG C, slowly adding high-carbon alcohol, and adding fatty acid into the reaction kettle so as to prepare an additive; and adding the inorganic powder with a particle size of 325 to 800 meshes and the additive into a powder modifying device, controlling the temperature at 70 to 80 DEG C, carrying out stirring at a high speed for 30 minutes, and carrying out cooling so as to prepare the powdery compound fertilizer anti-caking agent. The powdery compound fertilizer anti-caking agent provided by the invention has the following advantages: simple processing, convenient use, low cost, environmental protection, no pollution, good anti-caking effect, and capability of guaranteeing a fertilizer not to cake in 6 months.

Description

technical field [0001] The invention relates to a powder compound fertilizer anti-caking agent and a preparation method thereof. Background technique [0002] my country produces tens of millions of tons of compound fertilizers every year. The limitations of formula and system equipment in the production process of compound fertilizers make the products easy to agglomerate during storage, making it difficult for users to use, and seriously affecting the product quality and corporate image of compound fertilizer manufacturers. Enterprises have to use various anti-caking agents to achieve the purpose of anti-caking. In order to solve the caking problem of compound fertilizers, various fertilizer companies and scientific research institutes have conducted in-depth research on this subject, and have developed targeted anti-caking agents for different types of fertilizers. At present, most of the oil-soluble anti-caking agents are used, which consume a large amount of mineral oi...

AI Technical Summary

Problems solved by technology

At present, most of the oil-soluble anti-caking agents are used, which consume a large amount of mineral oil every year, the use cost is high, and there is serious environmental pollution. Although there are some powder anti-caking agents, most of them use talcum powder and diatomaceous earth. Ordinary powder, but there are several disadvantages: high cost, complicated adding operation process, poor anti-caking effect