GB1441736A - Method of and apparatus for refining crude cadmium - Google Patents

Method of and apparatus for refining crude cadmium

Info

Publication number
GB1441736A
GB1441736A GB4630874A GB4630874A GB1441736A GB 1441736 A GB1441736 A GB 1441736A GB 4630874 A GB4630874 A GB 4630874A GB 4630874 A GB4630874 A GB 4630874A GB 1441736 A GB1441736 A GB 1441736A
Authority
GB
United Kingdom
Prior art keywords
leg
tube
condenser
transition portion
crude
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
GB4630874A
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.)
Preussag AG Metall
Original Assignee
Preussag AG Metall
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 Preussag AG Metall filed Critical Preussag AG Metall
Publication of GB1441736A publication Critical patent/GB1441736A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C22B17/00—Obtaining cadmium
    • C22B17/06—Refining
    • 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
    • C22B19/00—Obtaining zinc or zinc oxide
    • C22B19/04—Obtaining zinc by distilling
    • 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
    • C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
    • C22B9/04—Refining by applying a vacuum
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)

Abstract

1441736 Refining cadmium PREUSSAG A G METALL 25 Oct 1974 [13 April 1974] 46308/74 Heading C7D Crude cadmium is continuously refined by evaporation in a vacuum and passing the vapour through a reflex condenser to remove the higher boiling point impurities prior to condensing and collecting the purified Cd. The apparatus used comprises an inverted U-shaped steel vacuum chamber 20, with a first and second legs formed by an inclined transition portion 34. In the first e.g., an evaporator portion 22 with a heating jacket 28 leads to a reflex condenser 30 containing a helical baffle 56 and surrounded by a temperature adjustable jacket 32. The outlet of the reflex condenser 30 connects with transition portion 34 which is connected to a condenser 36 in the second leg. A temperature adjustable jacket 38 surrounds condenser 36. A vacuum tube 42, connected to a pump, extends to just above the outlet end of the second leg and has the largest possible diameter to permit a minimum annular space 50 between the tube 42 and the wall of chamber 20 to give the maximum condensing surface. The free end of the second leg feeds via pipe 44 into a heated receiver 46. The crude liquid Cd input to the first leg is from a heated vessel 10 through tube 12, a further tube 16 leading from the first leg to a heated distillation residue container 14, the heights of tubes 12 and 16 being arranged such that the residue cannot feed back into the input tube. The materials in vessels 10, 14 and 46 act as barometric locks. In operation, the pressure and temperatures are adjusted and crude Cd is sucked into evaporator 22 via tube 12. The evaporated vapour passes into the baffled reflex condenser where impurities and some Cd condense and flow back counter current to the ascending vapour, this further purifying the gas. The distillation residue is discharged into receiver 14. The remaining gas passes through the transition portion 34 into condenser 36 in the second leg where it is condensed and collected in vessel 46.
GB4630874A 1974-04-13 1974-10-25 Method of and apparatus for refining crude cadmium Expired GB1441736A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2418170A DE2418170C2 (en) 1974-04-13 1974-04-13 Process and apparatus for refining crude cadmium

Publications (1)

Publication Number Publication Date
GB1441736A true GB1441736A (en) 1976-07-07

Family

ID=5912969

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4630874A Expired GB1441736A (en) 1974-04-13 1974-10-25 Method of and apparatus for refining crude cadmium

Country Status (11)

Country Link
JP (1) JPS548535B2 (en)
BE (1) BE820375A (en)
CA (1) CA1022344A (en)
DE (1) DE2418170C2 (en)
ES (2) ES430655A1 (en)
FI (1) FI60036C (en)
GB (1) GB1441736A (en)
IT (1) IT1019296B (en)
NL (1) NL182328C (en)
NO (1) NO136799C (en)
SE (1) SE401374B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100494424C (en) * 2007-08-31 2009-06-03 侯仁义 Hydrogenation method for high-pure cadmium
CN112322913A (en) * 2020-12-10 2021-02-05 中国核电工程有限公司 Refining device and refining method

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS578853B2 (en) * 1974-05-14 1982-02-18
FR2398807A1 (en) * 1977-07-29 1979-02-23 Preussag Ag Metall Impure cadmium refined by vacuum distillation - using an inverted U-tube still
CN108570564B (en) * 2018-07-09 2023-11-17 长沙科力威蒸馏技术有限公司 Vacuum distillation furnace
US11855520B2 (en) 2018-07-18 2023-12-26 Panasonic Intellectual Property Management Co., Ltd. Electric tool, control method, and program

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100494424C (en) * 2007-08-31 2009-06-03 侯仁义 Hydrogenation method for high-pure cadmium
CN112322913A (en) * 2020-12-10 2021-02-05 中国核电工程有限公司 Refining device and refining method

Also Published As

Publication number Publication date
FI60036C (en) 1981-11-10
SE7413670L (en) 1975-10-14
NL7413532A (en) 1975-10-15
ES430655A1 (en) 1976-10-16
FI60036B (en) 1981-07-31
ES430654A1 (en) 1976-10-16
SE401374B (en) 1978-05-02
FI279174A (en) 1975-10-14
NL182328C (en) 1988-02-16
DE2418170C2 (en) 1975-11-06
JPS548535B2 (en) 1979-04-17
CA1022344A (en) 1977-12-13
JPS50133923A (en) 1975-10-23
BE820375A (en) 1975-01-16
IT1019296B (en) 1977-11-10
DE2418170B1 (en) 1975-02-20
NO743438L (en) 1975-10-14
NO136799B (en) 1977-08-01
NL182328B (en) 1987-09-16
NO136799C (en) 1977-11-09
AU7544574A (en) 1976-05-20

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee