[go: up one dir, main page]

WO2002046717A3 - Recycling and purification of dropping mercury electrode - Google Patents

Recycling and purification of dropping mercury electrode Download PDF

Info

Publication number
WO2002046717A3
WO2002046717A3 PCT/IL2001/001122 IL0101122W WO0246717A3 WO 2002046717 A3 WO2002046717 A3 WO 2002046717A3 IL 0101122 W IL0101122 W IL 0101122W WO 0246717 A3 WO0246717 A3 WO 0246717A3
Authority
WO
WIPO (PCT)
Prior art keywords
mercury
electrode
acid
recycling
purification
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.)
Ceased
Application number
PCT/IL2001/001122
Other languages
French (fr)
Other versions
WO2002046717A2 (en
Inventor
Vladimir Dozortchev
Elisha Rabinovitz
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.)
IONGUARD Ltd
Original Assignee
IONGUARD Ltd
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 IONGUARD Ltd filed Critical IONGUARD Ltd
Priority to AU2002222451A priority Critical patent/AU2002222451A1/en
Publication of WO2002046717A2 publication Critical patent/WO2002046717A2/en
Publication of WO2002046717A3 publication Critical patent/WO2002046717A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
    • G01N27/28—Electrolytic cell components
    • G01N27/30—Electrodes, e.g. test electrodes; Half-cells
    • G01N27/34—Dropping-mercury electrodes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Molecular Biology (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)

Abstract

The present invention provides a voltammetric apparatus comprising a) an electroanalytical cell (12) comprising a mercury electrode (14) as a working electrode; a counter electrode (16); and a reference electrode (18); b) a purification container (28) connected to the cell, the purification container comprising at least an oxidizing acid or a mixture of at least one oxidizing agent and at least one acid; and c) a means (38) for feeding the resulting purified mercury from the purification container to the working electrode. The present invention further provides a process for purifying and recycling mercury in a mercury electrode, the process comprising the steps of continuously bringing contaminated mercury in contact with at least an oxidizing acid or a mixture of at least one oxidizing agent and at least one acid, resulting in purified mercury; and continuously delivering the purified mercury into the mercury electrode. In one embodiment, the working electrode is a dropping mercury electrode. In another embodiment, the working electrode is a static dropping mercury electrode.
PCT/IL2001/001122 2000-12-05 2001-12-05 Recycling and purification of dropping mercury electrode Ceased WO2002046717A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002222451A AU2002222451A1 (en) 2000-12-05 2001-12-05 Recycling and purification of dropping mercury electrode

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US25104100P 2000-12-05 2000-12-05
US60/251,041 2000-12-05

Publications (2)

Publication Number Publication Date
WO2002046717A2 WO2002046717A2 (en) 2002-06-13
WO2002046717A3 true WO2002046717A3 (en) 2003-05-01

Family

ID=22950227

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IL2001/001122 Ceased WO2002046717A2 (en) 2000-12-05 2001-12-05 Recycling and purification of dropping mercury electrode

Country Status (2)

Country Link
AU (1) AU2002222451A1 (en)
WO (1) WO2002046717A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3289346B1 (en) * 2015-04-29 2022-01-12 AMS Trace Metals, Inc. Renewable mercury meniscus electrode with mercury circulation system and contaminant removal
WO2018013293A1 (en) * 2016-07-13 2018-01-18 Ams Trace Metals, Inc. Techniques for toxic metal detection and speciation in aqueous matrices

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB396041A (en) * 1931-05-01 1933-07-18 Knut Wilhelm Palmaer Improved method of purifying mercury which has been used as a cathode in electrolysis
US2845344A (en) * 1954-10-26 1958-07-29 Olin Mathieson Process for purifying mercury
US3410763A (en) * 1963-08-08 1968-11-12 Union Carbide Corp Continuous polarographic method
US3857088A (en) * 1971-04-07 1974-12-24 Vyzk Ustav Organ Syntez Apparatus for cleaning a mercury-dropping electrode of a through-flow polarographic analyzer
US3895938A (en) * 1973-01-27 1975-07-22 Bayer Ag Purification of mercury
US4138322A (en) * 1977-07-12 1979-02-06 University Of Strathclyde Polarographic apparatus
US4298380A (en) * 1980-02-14 1981-11-03 Bochkarev Ellin P Process for purifying low-melting metals from impurities
EP0148023A2 (en) * 1983-12-30 1985-07-10 MONTEDIPE S.p.A. Process for the purification of mercury
US5314527A (en) * 1992-04-28 1994-05-24 Rockandel Michael A Mercury contaminated mud treatment
WO1999028738A1 (en) * 1997-12-01 1999-06-10 Verdeco Technologies Ltd. Dropping mercury electrode with mercury purification and recycling by means of contact with oxygenated water

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB396041A (en) * 1931-05-01 1933-07-18 Knut Wilhelm Palmaer Improved method of purifying mercury which has been used as a cathode in electrolysis
US2845344A (en) * 1954-10-26 1958-07-29 Olin Mathieson Process for purifying mercury
US3410763A (en) * 1963-08-08 1968-11-12 Union Carbide Corp Continuous polarographic method
US3857088A (en) * 1971-04-07 1974-12-24 Vyzk Ustav Organ Syntez Apparatus for cleaning a mercury-dropping electrode of a through-flow polarographic analyzer
US3895938A (en) * 1973-01-27 1975-07-22 Bayer Ag Purification of mercury
US4138322A (en) * 1977-07-12 1979-02-06 University Of Strathclyde Polarographic apparatus
US4298380A (en) * 1980-02-14 1981-11-03 Bochkarev Ellin P Process for purifying low-melting metals from impurities
EP0148023A2 (en) * 1983-12-30 1985-07-10 MONTEDIPE S.p.A. Process for the purification of mercury
US5314527A (en) * 1992-04-28 1994-05-24 Rockandel Michael A Mercury contaminated mud treatment
WO1999028738A1 (en) * 1997-12-01 1999-06-10 Verdeco Technologies Ltd. Dropping mercury electrode with mercury purification and recycling by means of contact with oxygenated water

Also Published As

Publication number Publication date
WO2002046717A2 (en) 2002-06-13
AU2002222451A1 (en) 2002-06-18

Similar Documents

Publication Publication Date Title
AU2325795A (en) Method of making and amperometric electrodes
KR960705373A (en) Small particle electrode by aerosol method (SMALL PARTICLE ELECTRODES BY AEROSOL PROCESS)
DE69600427D1 (en) Carbon electrode for non-aqueous secondary battery, process for its production and non-aqueous cell containing it
AU5788486A (en) Solid composition useful as a contact material for oxidative conversion of hydrocarbons
AU7296294A (en) Method and compositions for chlorine dioxide manufacture
FR2718129B1 (en) Process for the protection against oxidation of a porous material containing carbon, and material obtained.
WO1998037024A3 (en) Method for removing chlorate ions from solutions
WO2000031524A3 (en) Electrode system
CA2204314A1 (en) Process for electrochemical decomposition of organic pollutants
CA2143337A1 (en) A method and mixture for treating electric arc furnace dust
WO2002046717A3 (en) Recycling and purification of dropping mercury electrode
ID1014B (en) PROCESS FOR SEPARATE METAL SEPARATION USING SEPARATOR SOLUTION CONTAINING Cyanide, AND HYDROGEN PEROXIDE
BR0213191A (en) Process for recycling process gas in electrochemical processes
AU2003296578A1 (en) Method for eliminating mercury from solutions contaminated by the same
AU1350199A (en) Dropping mercury electrode with mercury purification and recycling by means of contact with oxygenated water
JPS5421054A (en) Biological method of removing nitrogen
DE3660413D1 (en) Process for working up waste products from the production of carbon electrodes, and adsorbant therefor
NZ319571A (en) Process for purifying alkoxylated fats
JPS5378665A (en) Method of refining valuable substance contained liquid
AU1390101A (en) Method for reducing the content of poly-chlorinated dibenzo-dioxins and -furans in the effluent gas from high temperature chemical processes
AU2560795A (en) Method and apparatus for the decontamination of products containing heavy metal
AU7743581A (en) Separating noble metals, copper and mercury from aqueous solutions
ES8404687A1 (en) Process for preparing p.chlorophenoxyacetyl-piperonylpiperazine.
JPS5240492A (en) Process for purifying waste fluid containing alminum
IT1269883B (en) METHOD FOR REMOVAL OF ACID CONTAMINANTS CONTAINED IN A VAPORIZED CURRENT COMPOSED OF ORGANIC VAPORS AND WATER

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ OM PH PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG US UZ VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
WWE Wipo information: entry into national phase

Ref document number: 2002548407

Country of ref document: JP

REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: JP