公开(公告)号：US10947166B2

公开(公告)日：2021-03-16

申请号：US16487589

申请日：2018-02-26

Applicant: YARA INTERNATIONAL ASA

Inventor： Riccardo Mulato ,  Amund Myrstad

IPC: C05G5/12 ,  C05G5/30 ,  C05C1/02 ,  C05C5/04 ,  C05G1/00 ,  C05C5/00 ,  C08B7/00 ,  C05D1/02 ,  C05D9/02 ,  C05B7/00

Abstract: The present disclosure concerns a method for producing fertilizer particles comprising an alternative source of boron. It is found that certain colemanite and ulexite powders can be supplied to a fertilizer melt shortly before granulation essentially without dissolving into the melt. Accordingly, the fertilizer particles produced from the melt may contain negligible amounts or non-detectable levels of sodium borates or boric acid. Furthermore, the fertilizer particles can be homogeneous which is desirable for boron supplying fertilizers. It is also found that the fertilizer particles can supply boron to plants at a rate comparable to borax pentahydrate.