FR2404468A2 - Iron powder recovery from hot dip galvanising residues - after zinc dissolution by magnetic separation, useful as catalyst - Google Patents

Iron powder recovery from hot dip galvanising residues - after zinc dissolution by magnetic separation, useful as catalyst

Info

Publication number
FR2404468A2
FR2404468A2 FR7729589A FR7729589A FR2404468A2 FR 2404468 A2 FR2404468 A2 FR 2404468A2 FR 7729589 A FR7729589 A FR 7729589A FR 7729589 A FR7729589 A FR 7729589A FR 2404468 A2 FR2404468 A2 FR 2404468A2
Authority
FR
France
Prior art keywords
useful
hot dip
residues
catalyst
iron powder
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.)
Pending
Application number
FR7729589A
Other languages
French (fr)
Inventor
Maurice Bonnemay
Jean Royon
Jean-Claude Catonne
Marie-Therese Descarsin
Henri Fencki
Marcel Bernard-Maugiron
Jean-Francois Fayolle
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.)
SEPREZ
Original Assignee
SEPREZ
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 SEPREZ filed Critical SEPREZ
Priority to FR7729589A priority Critical patent/FR2404468A2/en
Publication of FR2404468A2 publication Critical patent/FR2404468A2/en
Pending 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
    • B03C1/28—Magnetic plugs and dipsticks
    • 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
    • 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
    • B03C1/10—Magnetic separation acting directly on the substance being separated with cylindrical material carriers
    • B03C1/12—Magnetic separation acting directly on the substance being separated with cylindrical material carriers with magnets moving during operation; with movable pole pieces

Landscapes

  • Catalysts (AREA)

Abstract

The parent patent described a method of treating residues, esp. mattes, from hot dip galvanising processes to recover Zn by anodic dissolution or by setting up a corrosion cell. In the present invention, the resulting soln. is treated magnetically to recover Fe. The appts. consists of a rotating metal (esp. stainless steel) cylinder, contacting a magnetic roller and partially immersed in the soln. A scraper is provided for removing Fe particles retained the cylinder surface. The recovered Fe particles are useful, in acid medium, in the conversion of organic nitro cpds. to nitroso or even amino cpds. The particles show catalytic properties comparable with Raney Ni.
FR7729589A 1977-09-30 1977-09-30 Iron powder recovery from hot dip galvanising residues - after zinc dissolution by magnetic separation, useful as catalyst Pending FR2404468A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7729589A FR2404468A2 (en) 1977-09-30 1977-09-30 Iron powder recovery from hot dip galvanising residues - after zinc dissolution by magnetic separation, useful as catalyst

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7729589A FR2404468A2 (en) 1977-09-30 1977-09-30 Iron powder recovery from hot dip galvanising residues - after zinc dissolution by magnetic separation, useful as catalyst

Publications (1)

Publication Number Publication Date
FR2404468A2 true FR2404468A2 (en) 1979-04-27

Family

ID=9195994

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7729589A Pending FR2404468A2 (en) 1977-09-30 1977-09-30 Iron powder recovery from hot dip galvanising residues - after zinc dissolution by magnetic separation, useful as catalyst

Country Status (1)

Country Link
FR (1) FR2404468A2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0040659A1 (en) * 1980-05-28 1981-12-02 National Research Development Corporation Heavy metal recovery in ferrous metal production processes
WO1981003500A1 (en) * 1980-05-28 1981-12-10 Univ Cardiff Heavy metal recovery in ferrous metal production processes
WO2003061893A1 (en) * 2002-01-18 2003-07-31 Speedline Technologies, Inc. Solder-dross mixture separation method and apparatus
US6948650B2 (en) 2001-01-12 2005-09-27 Speedline Technologies, Inc. Dross removal and solder reclamation improvements

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0040659A1 (en) * 1980-05-28 1981-12-02 National Research Development Corporation Heavy metal recovery in ferrous metal production processes
WO1981003500A1 (en) * 1980-05-28 1981-12-10 Univ Cardiff Heavy metal recovery in ferrous metal production processes
US6948650B2 (en) 2001-01-12 2005-09-27 Speedline Technologies, Inc. Dross removal and solder reclamation improvements
WO2003061893A1 (en) * 2002-01-18 2003-07-31 Speedline Technologies, Inc. Solder-dross mixture separation method and apparatus
US6666370B2 (en) 2002-01-18 2003-12-23 Speedline Technologies, Inc. Solder-dross mixture separation method and apparatus

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