Application of surfactant in anti-caking of compound fertilizer with high tower granulation process;

With a great deal of data and literature,this paper analyzes the salt caking mechanism and puts forward the considerations of solving the caking problems,which can guide the research of salt anti-caking.

In the paper, following contents of inorganic compounds are summarized, such as caking mechanism, caking factors, anti-caking methods and types of anti-caking agents.

Against the caking in compound fertilizers, the revamping on the 100 kt/a facility of Liaotong Company is described with the previous powder coating process changed into oil coating process,the anticaking agent shows good effect after 1 year operation.

The reason for anticaking of ammonium persulfate is analysed.

Primary account for study on anti-caking agent of compound fertilizer;

Study and application of anti-caking agents for compound fertilizer;

The types of anti-caking agents for fertilizer and their application;

Application of anticaking agent suitable f or high nitrogen (25%～28% N)compound fertilizer;

Also a product of anticaking agent "Feiteli" and its mechanism, usage and effects are described .

This article introduces the caking reasons of salts and fertilizers,it also describes the method of research and progress of anticaking agent.

The types, functions and a dditive process of anti caking agent for urea are presented.

This paper introduces the research, manufacture and use of the anti caking agent for nitrate, Application shows that the agent is good for anti caking and has advantages such as low consumption, non poisonous and easy to use.