GB1373771A - Mercury recovery process - Google Patents

Mercury recovery process

Info

Publication number
GB1373771A
GB1373771A GB610671A GB610671A GB1373771A GB 1373771 A GB1373771 A GB 1373771A GB 610671 A GB610671 A GB 610671A GB 610671 A GB610671 A GB 610671A GB 1373771 A GB1373771 A GB 1373771A
Authority
GB
United Kingdom
Prior art keywords
mercury
chamber
solutions
vapour
condensate
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
GB610671A
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.)
BP Chemicals Ltd
Original Assignee
BP Chemicals 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 BP Chemicals Ltd filed Critical BP Chemicals Ltd
Priority to GB610671A priority Critical patent/GB1373771A/en
Priority to BE780222A priority patent/BE780222R/en
Priority to NL7202879A priority patent/NL7202879A/xx
Priority to IT21452/72A priority patent/IT990501B/en
Priority to FR7207655A priority patent/FR2128648A2/en
Priority to DE19722210759 priority patent/DE2210759A1/en
Publication of GB1373771A publication Critical patent/GB1373771A/en
Priority to GB24721/76A priority patent/GB1530489A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00—Multistage treatment of water, waste water or sewage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/06—Flash distillation
    • B01D3/065—Multiple-effect flash distillation (more than two traps)
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/34—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping with one or more auxiliary substances
    • B01D3/343—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping with one or more auxiliary substances the substance being a gas
    • B01D3/346—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping with one or more auxiliary substances the substance being a gas the gas being used for removing vapours, e.g. transport gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/34—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping with one or more auxiliary substances
    • B01D3/38—Steam distillation
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
    • C01D3/00—Halides of sodium, potassium or alkali metals in general
    • C01D3/14—Purification
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/02—Treatment of water, waste water, or sewage by heating
    • C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
    • C02F1/048—Purification of waste water by evaporation
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/70—Treatment of water, waste water, or sewage by reduction
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B43/00—Obtaining mercury
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/20—Heavy metals or heavy metal compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00—General aspects of water treatment
    • C02F2301/06—Pressure conditions
    • C02F2301/063—Underpressure, vacuum

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

1373771 Recovering mercury BP CHEMICALS Ltd 28 Feb 1972 [5 March 1971] 6106/71 Heading C7D [Also in Division B1] Aqueous solutions in which mercury is present as soluble inorganic mercury compounds are treated with a reducing agent and then flash distilled under vacuum, mercury being separated from the mixed condensate of steam and mercury vapour. Preferred reducing agents are ferrous sulphate, when the solutions have a pH greater than S, sodium borohydride, hydroxine, hydroxylamine or D-glucose when the solutions are alkaline, or iron or steel turnings or chips. Solutions containing insoluble compounds or elemental mercury must be converted to the soluble form; sodium sulphite or sulphur dioxide may be used to reduce any oxidizing agents present prior to the treatment with the preferred reductants. The process may be used to decontaminate brine from mercury cathode cells. The mixed vapour is preferably condensed on the external surfaces of internallycooled pipes or tubes; mercury is separated from the condensate by passage through a fibre pad and gravity separator or centrifuge. Distillation Apparatus, Fig.1. Aqueous solution is led in at 6 to a chamber 1 provided with a series of partitions 2; each section of the chamber includes an entrainment eliminator 3, an assembly of cooling tubes 4, a condensate collecting tray 5 and an inert gas bleed 16; reducing agent is fed in at 7. Treated solution leaves via barometric leg 8, condensates from each section are mixed and pass through a coalescing device 12 which includes fibre pads or packing pieces to a gravity separator 13 for mercury 14 and water 15, while vapour is removed by a steam ejector 9 to condensor 10 and another gravity separator, the ejector also providing the required vacuum. In one modification Fig.2 (not shown), the base of chamber 1 is stepped and includes a series of small capacity sumps from which the liquid is flash distilled, while in a further modification Fig.3 (not shown), inert gas is introduced at the base of the chamber to increase the rate of mercury vapourization.
GB610671A 1970-12-31 1971-03-05 Mercury recovery process Expired GB1373771A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
GB610671A GB1373771A (en) 1971-03-05 1971-03-05 Mercury recovery process
BE780222A BE780222R (en) 1971-03-05 1972-03-03 RECOVERY PROCESS
NL7202879A NL7202879A (en) 1971-03-05 1972-03-03
IT21452/72A IT990501B (en) 1971-03-05 1972-03-04 PROCESS OF RECOVERY OF MERCURY
FR7207655A FR2128648A2 (en) 1970-12-31 1972-03-06 Mercury recovery - from aq solns by treating with reducing agent and steam distilling finely divided or colloidal mercury
DE19722210759 DE2210759A1 (en) 1971-03-05 1972-03-06 Process for the recovery of mercury
GB24721/76A GB1530489A (en) 1971-03-05 1977-06-15 Process for the removal of mercury from aqueous solutions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB610671A GB1373771A (en) 1971-03-05 1971-03-05 Mercury recovery process

Publications (1)

Publication Number Publication Date
GB1373771A true GB1373771A (en) 1974-11-13

Family

ID=9808495

Family Applications (1)

Application Number Title Priority Date Filing Date
GB610671A Expired GB1373771A (en) 1970-12-31 1971-03-05 Mercury recovery process

Country Status (5)

Country Link
BE (1) BE780222R (en)
DE (1) DE2210759A1 (en)
GB (1) GB1373771A (en)
IT (1) IT990501B (en)
NL (1) NL7202879A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1245687A2 (en) * 2001-03-30 2002-10-02 Matsushita Electric Industrial Co., Ltd. Method and apparatus for mercury recovery from waste fluorescent lamps
EP2508243A1 (en) * 2011-04-06 2012-10-10 Shell Internationale Research Maatschappij B.V. Method and apparatus for removing mercury from waste water from hydrocarbon well stream
WO2012104662A3 (en) * 2011-02-02 2012-11-22 Emmanuil Dermitzakis Multi-stage desalination of low enthalpy
ITPI20130058A1 (en) * 2013-06-21 2014-12-22 Scuola Superiore Sant Anna REACTION TRANSPORT AND RELATED METHOD OF USE
CN113354015A (en) * 2021-05-06 2021-09-07 浦恩远 Automatic change water sample mercury vapour and blow and take off enrichment facility

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5710173B2 (en) * 1974-06-10 1982-02-25
DE3816282C1 (en) * 1988-05-12 1989-10-05 Gerhard Dipl.-Ing. 6940 Weinheim De Bernecker

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1245687A2 (en) * 2001-03-30 2002-10-02 Matsushita Electric Industrial Co., Ltd. Method and apparatus for mercury recovery from waste fluorescent lamps
EP1245687A3 (en) * 2001-03-30 2003-08-13 Matsushita Electric Industrial Co., Ltd. Method and apparatus for mercury recovery from waste fluorescent lamps
US6800112B2 (en) 2001-03-30 2004-10-05 Matsushita Electric Industrial Co., Ltd. Mercury recovery method
US6866814B2 (en) 2001-03-30 2005-03-15 Matsushita Electric Industrial Co., Ltd. Mercury recovery apparatus
WO2012104662A3 (en) * 2011-02-02 2012-11-22 Emmanuil Dermitzakis Multi-stage desalination of low enthalpy
EP2508243A1 (en) * 2011-04-06 2012-10-10 Shell Internationale Research Maatschappij B.V. Method and apparatus for removing mercury from waste water from hydrocarbon well stream
WO2012136780A1 (en) * 2011-04-06 2012-10-11 Shell Internationale Research Maatschappij B.V. Method and apparatus for removing mercury from waste water from hydrocarbon well stream
AU2012238593B2 (en) * 2011-04-06 2015-12-03 Shell Internationale Research Maatschappij B.V. Method and apparatus for removing mercury from waste water from hydrocarbon well stream
ITPI20130058A1 (en) * 2013-06-21 2014-12-22 Scuola Superiore Sant Anna REACTION TRANSPORT AND RELATED METHOD OF USE
CN113354015A (en) * 2021-05-06 2021-09-07 浦恩远 Automatic change water sample mercury vapour and blow and take off enrichment facility

Also Published As

Publication number Publication date
NL7202879A (en) 1972-09-07
DE2210759A1 (en) 1972-09-21
IT990501B (en) 1975-07-10
BE780222R (en) 1972-09-04

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee