EP0950129A1 - Installation d'affinage d'argent - Google Patents

Installation d'affinage d'argent

Info

Publication number
EP0950129A1
EP0950129A1 EP98955250A EP98955250A EP0950129A1 EP 0950129 A1 EP0950129 A1 EP 0950129A1 EP 98955250 A EP98955250 A EP 98955250A EP 98955250 A EP98955250 A EP 98955250A EP 0950129 A1 EP0950129 A1 EP 0950129A1
Authority
EP
European Patent Office
Prior art keywords
silver
conveying elements
support
elements
anode
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.)
Granted
Application number
EP98955250A
Other languages
German (de)
English (en)
Other versions
EP0950129B1 (fr
Inventor
Adalbert Prior
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.)
Prior Engineering AG
Original Assignee
Prior Engineering AG
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 Prior Engineering AG filed Critical Prior Engineering AG
Priority to AT98955250T priority Critical patent/ATE240426T1/de
Publication of EP0950129A1 publication Critical patent/EP0950129A1/fr
Application granted granted Critical
Publication of EP0950129B1 publication Critical patent/EP0950129B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C1/00—Electrolytic production, recovery or refining of metals by electrolysis of solutions
    • C25C1/20—Electrolytic production, recovery or refining of metals by electrolysis of solutions of noble metals
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
    • C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells

Definitions

  • the invention relates to a system for silver refining according to the Möbius process for the processing of part-shaped raw silver, wherein in the anodes a raw silver receiving space and underneath an anode sludge receiving space with intermediate, anode sludge-permeable support for the raw silver fill are provided, as well as the support having at least two horizontally movable axis elements which extend essentially across the width of the support and between which a gap is provided for the passage of anode sludge.
  • raw silver is anodically dissolved and cathodically deposited as female silver.
  • plate-shaped silver anodes were originally surrounded by anode bags and arranged between stripping cathode sheets. The anode bags hold back the gold sludge - if an anode is used up, it is replaced, with the gold sludge from the anode bags after inverting the bags is unwound.
  • anode body is a frame-like or basket-like structure made of insoluble metal, for example titanium, and is charged with raw silver granules, so that it can be driven continuously.
  • a sieve plate is provided for separating raw silver debris from the anode sludge collecting chamber.
  • the problem of blockage of the sieve bottom can also occur, even when the electrolyte is moving, since its gaps have to be narrow enough to allow only anode sludge to pass through.
  • the raw silver granules remain solid for most of the silver dissolution period and that their size changes very little - the granules only soften when the silver content has dropped (from over 80%) to about 4%.
  • the gold content is about 90%. It is believed that the palladium content is responsible for this resistance, the, timing has been enriched to about 6% for this.
  • the granules almost disintegrate by themselves, but during the transition from softening to decay there is a so-called slush phase, in which sieve trays can become clogged.
  • the support for the raw silver fill is provided in the form of at least two oppositely driven rollers with axes parallel to one another, the conveyor elements on the circumference of the roller, in particular axial conveyor ribs, for conveying anode sludge between the rollers and optionally between a roller and an adjacent stationary one Exhibit wall.
  • the conveying elements fulfill the further very important function of bringing about the complete disintegration of the granules by movement - for this an oscillating movement of the rollers was preferred, where material can still remain in the roller gap while the conveyor elements are moving away after being conveyed from the conveyor elements to the roller gap. The same applies to the gap between the roller and the bottom container wall. It has now surprisingly been found that a disassembly effect of the granules which is even better than that of the A 896/97 by the applicant can be achieved if the conveying elements are not pivoted against one another but are moved back and forth in the axial direction
  • the support ⁇ has at least two relatively movable conveyor elements with horizontal axes, which essentially extend over the width of the support and between which a gap is provided for the passage of anode sludge, especially as a result characterized in that the conveying elements are provided so as to be movable in the axial direction.
  • the surfaces of the conveying elements touched by the granite are displaced with respect to the granary filling and ensure the necessary abrasion
  • Preferred prismatic elements are straight prisms with a triangular cross section, which are arranged so that the gap lies between their edges, so that abrasion material is guided to the gap by slanting puddles.
  • FIG. 1 is an end cross-sectional view
  • FIG. 2 is a side cross-sectional view of one in one Electrode cloth between the stripping cathodes, which can be hooked into the basket anode with raw silver granite neck filling.
  • FIG. 3 is an enlarged detail from FIG. 2
  • the anode is a flat anode with granule receiving space 1 at the top and tapering at the bottom
  • the granule receiving space 1 has a central, porous partition wall 4 and an anode contact plate 5 on each side.
  • the anode basket can be flowed through with electrolyte, not shown, for this purpose perforated side walls and diaphragms are provided between the granules and the rare walls
  • a mechanically driven granite separation device is provided between the granule receiving space 1 and the anode sludge collecting space, which extends under the granule bed essentially over its entire width, generally designated 6 and is described in more detail in FIG. 3
  • the Granahenzerlegvor ⁇ chtung 6 has two straight prism poles 6A, 6B with a square cross-section, which run parallel to each other, the prism poles with their edges facing each other and against the side walls of the grana close-up space 1, which in their lowermost section 7A, 7B obliquely to the P ⁇ smenstetten hm thus there is a gap S1 between wall section 7A and prism bar 6A, a gap S2 between prism bar 6A and 6B and a gap S3 between prism bar 6B and wall section 7B, the gaps preferably having the same width.
  • the gap width depends on the operating parameters of the system, including the size and composition of the raw silver granules - approx. 0.5 to approx.
  • the P ⁇ smenstabe 6A, 6B are slidably held in supporting walls 8, which have relief holes 9 where the rod edges pass, so that solids can be removed laterally from the supporting walls 8 when the prismatic rods are moved parallel to each other
  • a pivot lever 9 can be seen schematically, which engages the pin rods 6A 6B via a transmission axis 10 and cams 11 and - if it is pivoted back and forth - for one Disassembly of the granah remains in the three columns mentioned above ensures.
  • the inclined sections 7A 7B and the shape of the prismatic rod 6A, 6B ensure the guidance of the granules to the gaps, so that there are no surfaces on which the granahen material could remain and there is no risk of clogging.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electrolytic Production Of Metals (AREA)

Abstract

L'invention concerne une installation d'affinage d'argent fonctionnant selon le procédé Möbius et destinée au traitement d'argent brut particulaire. Les anodes renferment un compartiment (1) destiné à recevoir l'argent brut, un compartiment (2) sous-jacent destiné à recevoir la boue anodique et, intercalé entre ces deux compartiments un support (6A, 6B) perméable à la boue anodique et destiné au déversement de l'argent brut. Le support présente au moins deux éléments de transport qui sont mobiles l'un par rapport à l'autre et possèdent des axes horizontaux s'étendant sensiblement sur la largeur du support et entre lesquels une fente (S1, S2, S3) permet le passage de la boue anodique. L'invention est caractérisée en ce que les éléments de transport ont un mouvement de va-et-vient dans la direction axiale.
EP98955250A 1997-11-06 1998-11-06 Installation d'affinage d'argent Expired - Lifetime EP0950129B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT98955250T ATE240426T1 (de) 1997-11-06 1998-11-06 Anlage zur silberraffination

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT69497U 1997-11-06
AT0069497U AT2421U1 (de) 1997-11-06 1997-11-06 Anlage zur silberraffination
PCT/AT1998/000273 WO1999024646A1 (fr) 1997-11-06 1998-11-06 Installation d'affinage d'argent

Publications (2)

Publication Number Publication Date
EP0950129A1 true EP0950129A1 (fr) 1999-10-20
EP0950129B1 EP0950129B1 (fr) 2003-05-14

Family

ID=3497368

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98955250A Expired - Lifetime EP0950129B1 (fr) 1997-11-06 1998-11-06 Installation d'affinage d'argent

Country Status (6)

Country Link
US (1) US6190515B1 (fr)
EP (1) EP0950129B1 (fr)
AT (1) AT2421U1 (fr)
CA (1) CA2277070A1 (fr)
DE (1) DE59808359D1 (fr)
WO (1) WO1999024646A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT407996B (de) * 2000-01-28 2001-07-25 Prior Eng Ag Vorrichtung und verfahren zur elektrolyse von schüttgut mit anodisch löslichen bestandteilen
EP1932951A1 (fr) * 2006-11-17 2008-06-18 PRIOR Engineering Services AG Panier d'électrode avec alimentation en courant pulse
CN114990636B (zh) * 2022-05-31 2026-04-28 肇庆市鑫丰科技有限公司 一种银电解装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4054503A (en) * 1976-10-14 1977-10-18 Ag-Met, Inc. Portable metal recovery apparatus
IT1078107B (it) * 1977-05-11 1985-05-08 Chimet S P A Cella di affinazione elettrolitica dell'argento
US4090935A (en) * 1977-07-12 1978-05-23 The United States Of America As Represented By The Secretary Of The Interior Process for recovering silver, copper and stainless steel from silver brazed stainless steel sections
US4257864A (en) * 1979-08-02 1981-03-24 Gacki Leonard W Portable silver recovery unit
AT380032B (de) * 1983-08-29 1986-03-25 Oegussa Elektrolytisches silberraffinationsverfahren
AT383372B (de) * 1985-07-24 1987-06-25 Oegussa Elektrolytisches silberraffinationsverfahren
CA1334745C (fr) * 1989-03-28 1995-03-14 Paul Spira Cuve d'affinage de l'argent en continu
US5620586A (en) * 1995-11-27 1997-04-15 Noranda, Inc. Silver electrolysis method in Moebius cells

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9924646A1 *

Also Published As

Publication number Publication date
AT2421U1 (de) 1998-10-27
DE59808359D1 (de) 2003-06-18
CA2277070A1 (fr) 1999-05-20
EP0950129B1 (fr) 2003-05-14
WO1999024646A1 (fr) 1999-05-20
US6190515B1 (en) 2001-02-20

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