GB1434288A - Separation and purification of gold - Google Patents

Separation and purification of gold

Info

Publication number
GB1434288A
GB1434288A GB3594473A GB3594473A GB1434288A GB 1434288 A GB1434288 A GB 1434288A GB 3594473 A GB3594473 A GB 3594473A GB 3594473 A GB3594473 A GB 3594473A GB 1434288 A GB1434288 A GB 1434288A
Authority
GB
United Kingdom
Prior art keywords
gold
boiled
solution
hno
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.)
Expired
Application number
GB3594473A
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.)
SWARSAB MINING
Original Assignee
SWARSAB MINING
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 SWARSAB MINING filed Critical SWARSAB MINING
Publication of GB1434288A publication Critical patent/GB1434288A/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
    • C22B11/00—Obtaining noble metals
    • C22B11/04—Obtaining noble metals by wet processes
    • 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
    • C22B11/00—Obtaining noble metals

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)

Abstract

1434288 Recovering and purifying gold SWARSAB MINING EXPLORATION & DEVELOPMENT CO (PTY) Ltd 27 July 1973 [10 Aug 1972] 35944/73 Heading C7D A solution of gold plus one or more platinum group metals containing HNO 3 is evaporated to dryness at least once, the residue is redissolved in HNO 3 , H 2 O 2 is added to the solution which is then boiled to obtain gold. The final filtrate may be boiled with formic acid to precipitate the remaining gold, which can then be recirculated to a suitable prior step.
GB3594473A 1972-08-10 1973-07-27 Separation and purification of gold Expired GB1434288A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ZA725488A ZA725488B (en) 1972-08-10 1972-08-10 Improvements in or relating to the separation and purification of gold

Publications (1)

Publication Number Publication Date
GB1434288A true GB1434288A (en) 1976-05-05

Family

ID=25565244

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3594473A Expired GB1434288A (en) 1972-08-10 1973-07-27 Separation and purification of gold

Country Status (9)

Country Link
JP (1) JPS5234246B2 (en)
BE (1) BE803391A (en)
CA (1) CA998533A (en)
FI (1) FI58161C (en)
FR (1) FR2195690B1 (en)
GB (1) GB1434288A (en)
IT (1) IT1006037B (en)
NO (1) NO134704C (en)
ZA (1) ZA725488B (en)

Also Published As

Publication number Publication date
NO134704B (en) 1976-08-23
ZA725488B (en) 1973-09-26
CA998533A (en) 1976-10-19
JPS5234246B2 (en) 1977-09-02
FR2195690A1 (en) 1974-03-08
FI58161C (en) 1980-12-10
JPS4945823A (en) 1974-05-01
FI58161B (en) 1980-08-29
AU5881173A (en) 1974-10-10
BE803391A (en) 1973-12-03
IT1006037B (en) 1976-09-30
DE2340157A1 (en) 1974-02-28
DE2340157B2 (en) 1975-10-23
FR2195690B1 (en) 1976-11-19
NO134704C (en) 1976-12-01

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Legal Events

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