Title: High-efficiency boron-magnesium fertilizer and producing method
Application Number: 97104634 Application Date: 1997.04.15
Publication Number: 1196340 Publication Date: 1998.10.21
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: C05D11/00
Applicant(s) Name: Ji Chunxuan Address: 453300
Inventor(s) Name:
Attorney & Agent: hao xiuchun
Abstract:
     An efficient B-Mg fertilizer is prepared from boron ore through crushing boron ore into particles (130-150 meshes) raction with sulfuric acid in reactor at 80-100 deg.C while stirring for 20-40 min. until its pH=3.5-5, filter to remove impurities, loading pure liquid into crystallizer, cooling to temp lower than 20-40 deg.C, separating crystal from mother liquid, centrifugal dewatering of crystal, drying at 70-90 deg.C and building-up, and features easy absorption by plant, low cost, increasing yield obviously and no environmental pollution.
Time: 10
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