Enrichment of By-Product Materials from Steel Pickling Acid Regeneration Plants (TRP 9942)

Lu Swan, Delta Ferrites LLC

Bailey PVS Oxides LLC, Canonsburg, PA

关键词: By-Products;    Testing;    Steel Pickling, Acid Regeneration;    Pickling;    Precursor;   

DOI  :  10.2172/974246
RP-ID  :  None
RP-ID  :  FC36-97ID13554
RP-ID  :  974246

美国|英语

来源: UNT Digital Library

【 摘 要 】

A new process for manufacturing an enriched, iron-based product (strontium hexaferrite) in existing steel pickling acid regeneration facilities was evaluated. Process enhancements and equipment additions were made to an existing acid regeneration plant to develop and demonstrate (via pilot scale testing and partial-capacity production trials) the viability of a patented method to produce strontium-based compounds that, when mixed with steel pickling acid and roasted, would result in a strontium hexaferrite powder precursor which could then be subjected to further heat treatment in an atmosphere that promotes rapid, relatively low-temperature formation of discrete strontium hexaferrite magnetic domains yielding an enriched iron-based product, strontium hexaferrite, that can be used in manufacturing hard ferrite magnets.