ES2068185T3 - MAGNETIC PURIFICATION OF SUSPENSIONS. - Google Patents

MAGNETIC PURIFICATION OF SUSPENSIONS.

Info

Publication number
ES2068185T3
ES2068185T3 ES87307590T ES87307590T ES2068185T3 ES 2068185 T3 ES2068185 T3 ES 2068185T3 ES 87307590 T ES87307590 T ES 87307590T ES 87307590 T ES87307590 T ES 87307590T ES 2068185 T3 ES2068185 T3 ES 2068185T3
Authority
ES
Spain
Prior art keywords
suspension
matrix
retained
flush liquid
impurities
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 - Lifetime
Application number
ES87307590T
Other languages
Spanish (es)
Inventor
Mitchell J Willis
Glen Alton Hemstock
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.)
BASF Catalysts LLC
Original Assignee
Engelhard Corp
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
Priority claimed from US06/900,666 external-priority patent/US4784758A/en
Priority claimed from US06/938,205 external-priority patent/US4781298A/en
Application filed by Engelhard Corp filed Critical Engelhard Corp
Application granted granted Critical
Publication of ES2068185T3 publication Critical patent/ES2068185T3/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C1/00—Magnetic separation
    • B03C1/02—Magnetic separation acting directly on the substance being separated
    • B03C1/025—High gradient magnetic separators
    • B03C1/031—Component parts; Auxiliary operations
    • B03C1/032—Matrix cleaning systems

Landscapes

  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Silicates, Zeolites, And Molecular Sieves (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)

Abstract

A process which is especially useful for effecting magnetic separation of magnetically attractable impurities from an aqueous clay slurry or suspension includes passing the suspension (42) through a porous, ferromagnetic matrix while applying a magnetic field to the matrix (10), on which impurities are collected, and thereafter regenerating the matrix by flushing collected impurities therefrom with a flush liquid (26), e.g. water. The improvement comprises, after discontinuing the passage of the suspension through the matrix, but before passing flush liquid therethrough, admitting a pressurized gas (68) e.g. compressed air, into the separator to displace suspension retained therein, and recovering the displaced suspension. In addition, flush liquid retained in the matrix after the flushing step may be displaced therefrom by the compressed air. By displacing the retained suspension from the matrix with compressed gas instead of flush liquid the retained suspension is not diluted and is recovered instead of sewered as in the prior art processes.
ES87307590T 1986-08-27 1987-08-27 MAGNETIC PURIFICATION OF SUSPENSIONS. Expired - Lifetime ES2068185T3 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US06/900,666 US4784758A (en) 1986-08-27 1986-08-27 Process for removing magnetic particles from a suspension of solids in a liquid
US91614986A 1986-10-07 1986-10-07
US06/938,205 US4781298A (en) 1986-10-07 1986-12-03 Process for beneficiating clay at high solids

Publications (1)

Publication Number Publication Date
ES2068185T3 true ES2068185T3 (en) 1995-04-16

Family

ID=27420585

Family Applications (1)

Application Number Title Priority Date Filing Date
ES87307590T Expired - Lifetime ES2068185T3 (en) 1986-08-27 1987-08-27 MAGNETIC PURIFICATION OF SUSPENSIONS.

Country Status (4)

Country Link
EP (1) EP0258054B1 (en)
AT (1) ATE118370T1 (en)
DE (1) DE3751058T2 (en)
ES (1) ES2068185T3 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3819515A (en) * 1972-08-28 1974-06-25 J Allen Magnetic separator
US3838773A (en) * 1973-03-16 1974-10-01 Massachusetts Inst Technology Vibrating-matrix magnetic separators
US4087358A (en) * 1976-10-12 1978-05-02 J. M. Huber Corporation Augmenting and facilitating flushing in magnetic separation
DE2650925C3 (en) * 1976-11-08 1985-07-11 Klöckner-Humboldt-Deutz AG, 5000 Köln Magnetic separator with devices for cleaning the matrices
JPH0722658B2 (en) * 1985-05-31 1995-03-15 大同特殊鋼株式会社 Electromagnetic filter

Also Published As

Publication number Publication date
ATE118370T1 (en) 1995-03-15
EP0258054A2 (en) 1988-03-02
EP0258054A3 (en) 1989-10-04
DE3751058T2 (en) 1995-09-07
DE3751058D1 (en) 1995-03-23
EP0258054B1 (en) 1995-02-15

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