approach to the avoidance of støvning and sammenbagning of salts and fertilizers by the application of the coating.

摘要

1292718 Coated fertilizers BADISCHE ANILIN- & SODA-FABRIK AG 5 Feb 1970 [6 Feb 1969] 5573/70 Headings C1A and C1B [Also in Divisions B2 and C2] A granular or crystalline salt or fertilizer is provided with a coating to avoid dust formation and agglomeration, the coating comprising a polyethylene wax and/or polypropylene wax of mean M.W. from 500 to 10,000 and having a penetrometer number of not more than 3, and a surfactant. Specified salts/fertilizers are urea, calcium nitrate, sodium nitrate, potassium nitrate, calcium ammonium nitrate, nitrophosphates, potassium sulphate, potassium chloride and sodium chloride, and various fertilizers specified by NPK and NPKMg proportions. The surfactant may be anionic, cationic or non-ionic and examples of each type are given.