GB633203A - Improvements in and relating to the precipitation and filtration of gold and silver from cyanide solution - Google Patents

Improvements in and relating to the precipitation and filtration of gold and silver from cyanide solution

Info

Publication number
GB633203A
GB633203A GB2823447A GB2823447A GB633203A GB 633203 A GB633203 A GB 633203A GB 2823447 A GB2823447 A GB 2823447A GB 2823447 A GB2823447 A GB 2823447A GB 633203 A GB633203 A GB 633203A
Authority
GB
United Kingdom
Prior art keywords
filter
gold
diatomaceous earth
outlet pipes
silver
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
GB2823447A
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.)
EUSTACE NORMAN HARPER MOLLOY
Original Assignee
EUSTACE NORMAN HARPER MOLLOY
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 EUSTACE NORMAN HARPER MOLLOY filed Critical EUSTACE NORMAN HARPER MOLLOY
Priority to GB2823447A priority Critical patent/GB633203A/en
Publication of GB633203A publication Critical patent/GB633203A/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
    • C22B11/08—Obtaining noble metals by cyaniding
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode

Abstract

633,203. Filters; filtering media. HUNTINGTON, HEBERLEIN & CO., Ltd. (Molloy, E. N. H.). Oct. 22, 1947, No. 28234. [Class 46] [Also in Group II] Granular diatomaceous earth and zinc dust are added to gold or silver cyanide solution to precipitate the gold or silver prior to delivering it to a filter. Cyanide solution containing initially only coarse diatomaceous earth of preferably 100-325 mesh is pumped at 8 into a filter casing 1 having a removable top cover 2, and passes in parallel through layers of canvas or metal filter cloth 7 resting on the perforate tops 6 of four horizontal hollow trays 4 supported on brackets 5 and having outlet pipes 9 which embody quick release coupling devices 10. When a layer of filter acid is formed on the canvases, zinc dust is introduced into the solution along with diatomaceous earth. The latter is in the proportion of 25 to 30 per cent of the weight of the zinc dust. Preferably the outlet pipes 9 are led to, or each continued as, a pipe carried above the top of the filter to avoid eddying of the solution within the filter casing. Vacuum is applied to the outlet pipes 9 to dry the deposit before removal.
GB2823447A 1947-10-22 1947-10-22 Improvements in and relating to the precipitation and filtration of gold and silver from cyanide solution Expired GB633203A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2823447A GB633203A (en) 1947-10-22 1947-10-22 Improvements in and relating to the precipitation and filtration of gold and silver from cyanide solution

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2823447A GB633203A (en) 1947-10-22 1947-10-22 Improvements in and relating to the precipitation and filtration of gold and silver from cyanide solution

Publications (1)

Publication Number Publication Date
GB633203A true GB633203A (en) 1949-12-12

Family

ID=10272447

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2823447A Expired GB633203A (en) 1947-10-22 1947-10-22 Improvements in and relating to the precipitation and filtration of gold and silver from cyanide solution

Country Status (1)

Country Link
GB (1) GB633203A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2793754A (en) * 1954-09-14 1957-05-28 Frank M Yeiser Filter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2793754A (en) * 1954-09-14 1957-05-28 Frank M Yeiser Filter

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