GB451979A - Improvements in or relating to the recovery of precious metals from ores or preciousmetal bearing deposits - Google Patents
Improvements in or relating to the recovery of precious metals from ores or preciousmetal bearing depositsInfo
- Publication number
- GB451979A GB451979A GB1415235A GB1415235A GB451979A GB 451979 A GB451979 A GB 451979A GB 1415235 A GB1415235 A GB 1415235A GB 1415235 A GB1415235 A GB 1415235A GB 451979 A GB451979 A GB 451979A
- Authority
- GB
- United Kingdom
- Prior art keywords
- solution
- ores
- bisulphite
- precious metals
- preciousmetal
- 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
Links
- 239000010970 precious metal Substances 0.000 title abstract 3
- 238000011084 recovery Methods 0.000 title 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 abstract 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- 230000003750 conditioning effect Effects 0.000 abstract 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical class O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract 1
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 abstract 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 abstract 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 abstract 1
- 239000005864 Sulphur Substances 0.000 abstract 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 abstract 1
- 239000003513 alkali Substances 0.000 abstract 1
- LVGQIQHJMRUCRM-UHFFFAOYSA-L calcium bisulfite Chemical compound [Ca+2].OS([O-])=O.OS([O-])=O LVGQIQHJMRUCRM-UHFFFAOYSA-L 0.000 abstract 1
- 235000010260 calcium hydrogen sulphite Nutrition 0.000 abstract 1
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract 1
- 238000000605 extraction Methods 0.000 abstract 1
- 239000003546 flue gas Substances 0.000 abstract 1
- 230000003993 interaction Effects 0.000 abstract 1
- 150000002500 ions Chemical class 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 229910052708 sodium Inorganic materials 0.000 abstract 1
- 239000011734 sodium Substances 0.000 abstract 1
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 abstract 1
- 235000011149 sulphuric acid Nutrition 0.000 abstract 1
- 239000001117 sulphuric acid Substances 0.000 abstract 1
- 229910052725 zinc Inorganic materials 0.000 abstract 1
- 239000011701 zinc Substances 0.000 abstract 1
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
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)
- Removal Of Specific Substances (AREA)
Abstract
Precious metals are recovered from ores by extraction with dilute alkaline cyanide solution, subjecting the solution to a conditioning operation which renders the solution capable of actively reacting with a metallic precipitant, deoxides the solution, and neutralizes alkalinity to an extent sufficient to afford a pH value of from 6-8,4, and then contacting the solution with a metallic precipitant such as zinc or iron. The conditioning operation may comprise the addition of sodium or calcium bisulphite, sulphur or carbon dioxides, either singly or in combination, a suitable source of mixed dioxides being flue-gas. Before the addition of bisulphite, the solution may be neutralized with sulphuric acid and the bisulphite may be formed by interaction between the alkali or alkaline earth ion in the solution and sulphurous acid. Reference has been directed by the Comptroller to Specification 442,315.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1415235A GB451979A (en) | 1935-05-14 | 1935-05-14 | Improvements in or relating to the recovery of precious metals from ores or preciousmetal bearing deposits |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1415235A GB451979A (en) | 1935-05-14 | 1935-05-14 | Improvements in or relating to the recovery of precious metals from ores or preciousmetal bearing deposits |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB451979A true GB451979A (en) | 1936-08-14 |
Family
ID=10035957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1415235A Expired GB451979A (en) | 1935-05-14 | 1935-05-14 | Improvements in or relating to the recovery of precious metals from ores or preciousmetal bearing deposits |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB451979A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1990010721A1 (en) * | 1989-03-07 | 1990-09-20 | Dean Robert Butler | Recovery of gold, silver and platinum group metals with various leachants at low pulp densities |
-
1935
- 1935-05-14 GB GB1415235A patent/GB451979A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1990010721A1 (en) * | 1989-03-07 | 1990-09-20 | Dean Robert Butler | Recovery of gold, silver and platinum group metals with various leachants at low pulp densities |
| GB2248631A (en) * | 1989-03-07 | 1992-04-15 | Dean Robert Butler | Recovery of gold, silver and platinum group metals with various leachants at low pulp densities |
| GB2248631B (en) * | 1989-03-07 | 1993-06-09 | Dean Robert Butler | Recovery of gold, silver and platinum group metals with various leachants at low pulp densities |
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