Beneficiating sodium sulfate-containing material

EP4587412A1Pending Publication Date: 2025-07-23US BORAX INC
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Patent Information

Application Number
EP2023866152
Authority / Receiving Office
EP · EP
Patent Type
Applications
Current Assignee / Owner
Priority Date
2022-09-14
Filing Date
2023-09-13
Publication Date
2025-07-23

AI Technical Summary

Technical Problem

Sodium sulfate-containing waste materials from industrial processes pose environmental challenges due to sulfate limitations in water disposal and lack of marketable products, with limited utilization and high production costs for potassium sulfate.

Method used

A process utilizing the Glaserite method to convert sodium sulfate-containing materials into potassium sulfate (SOP) and subsequently blending SOP with boron-containing compounds to produce a fertiliser product (SOP+B) that addresses environmental concerns and creates a marketable product.

Benefits of technology

The process effectively converts sodium sulfate waste into a valuable fertiliser product that corrects potassium and sulfur deficiencies in soils while providing boron, reducing environmental impact and production costs.

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Abstract

A process for beneficiating a sodium sulfate-containing material that comprises processing a sodium sulfate-containing material and potassium chloride and forming potassium sulfate, i.e. sulfate of potash (SOP) as a marketable product.
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