Invention Grant
- Patent Title: Process of removing iron impurities from ores
- Patent Title (中): 从矿石中除去铁杂质的工艺
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Application No.: US333256Application Date: 1981-12-21
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Publication No.: US4405588APublication Date: 1983-09-20
- Inventor: Alejandro J. Caballero , Ricardo I. Holcombe
- Applicant: Alejandro J. Caballero , Ricardo I. Holcombe
- Applicant Address: MXX Col. Obispado
- Assignee: Materias Primas, Monterrey, S.A.
- Current Assignee: Materias Primas, Monterrey, S.A.
- Current Assignee Address: MXX Col. Obispado
- Main IPC: B03B9/00
- IPC: B03B9/00 ; C03C1/02 ; C22B1/00 ; C01B33/12
Abstract:
A process of removing iron impurities from ores, particularly useful for removing stains of iron impurities adhered to silica sand particles, comprises grinding the ore, washing and desliming the ground ore to remove the major part of the clay-type binder, attrition-scrubbing the deslimed particles to release further amounts of binder therefrom, washing and desliming to remove said binder, drying and heating the ore particles, treating the hot particles with a chemical agent suitable to conver the iron impurities into water soluble iron compounds, attrition-scrubbing the hot suspension of chemically treated particles to release the stains of iron impurities, and washing with cold water and desliming to recover the purified ore particles.
Public/Granted literature
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