GB616425A - Cleaning of magnetic heavy media - Google Patents

Cleaning of magnetic heavy media

Info

Publication number
GB616425A
GB616425A GB26962/46A GB2696246A GB616425A GB 616425 A GB616425 A GB 616425A GB 26962/46 A GB26962/46 A GB 26962/46A GB 2696246 A GB2696246 A GB 2696246A GB 616425 A GB616425 A GB 616425A
Authority
GB
United Kingdom
Prior art keywords
medium
cleaning
subjecting
demagnetizing
hydraulic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB26962/46A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wyeth Holdings LLC
Original Assignee
American Cyanamid Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by American Cyanamid Co filed Critical American Cyanamid Co
Publication of GB616425A publication Critical patent/GB616425A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
    • B03B5/28—Washing granular, powdered or lumpy materials; Wet separating by sink-float separation
    • B03B5/30—Washing granular, powdered or lumpy materials; Wet separating by sink-float separation using heavy liquids or suspensions
    • B03B5/44—Application of particular media therefor

Landscapes

  • Manufacture And Refinement Of Metals (AREA)

Abstract

In a method of cleaning magnetic heavy media the medium to be cleaned is subjected to sizing in the damagnetized state and hydraulic classification in the magnetically flocculated condition. These steps may be performed in any order, but the medium before re-use must be in the demagnetized condition. The sizing operation may comprise tabling or screening, the former being preferred when the density of the medium is not high, e.g. in coal cleaning, and the hydraulic classifier may be of any known type. A preferred cleaning process comprises magnetically flocculating the medium, subjecting it to hydraulic classification, e.g. in an upward current classifier, demagnetizing the medium subjecting it to a screening operation, magnetizing the clean medium, subjecting it to thickening, demagnetizing and returning it to the separating system. The sink and float fractions are treated separately in parallel circuits and the valuable contaminant of the medium is recovered.
GB26962/46A 1945-11-08 1946-09-07 Cleaning of magnetic heavy media Expired GB616425A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US616425XA 1945-11-08 1945-11-08

Publications (1)

Publication Number Publication Date
GB616425A true GB616425A (en) 1949-01-20

Family

ID=22037130

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26962/46A Expired GB616425A (en) 1945-11-08 1946-09-07 Cleaning of magnetic heavy media

Country Status (1)

Country Link
GB (1) GB616425A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2690261A (en) * 1951-03-02 1954-09-28 Western Machinery Company Concentration of minerals
DE974361C (en) * 1951-07-04 1960-12-01 Stamicarbon Process for the regeneration of a sword-beet from magnetizable heavy material
US3031074A (en) * 1952-08-30 1962-04-24 Osawa Hirosaburo Process for cleaning coal by dense medium

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2690261A (en) * 1951-03-02 1954-09-28 Western Machinery Company Concentration of minerals
DE974361C (en) * 1951-07-04 1960-12-01 Stamicarbon Process for the regeneration of a sword-beet from magnetizable heavy material
US3031074A (en) * 1952-08-30 1962-04-24 Osawa Hirosaburo Process for cleaning coal by dense medium

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