DE160738C - - Google Patents
Info
- Publication number
- DE160738C DE160738C DENDAT160738D DE160738DA DE160738C DE 160738 C DE160738 C DE 160738C DE NDAT160738 D DENDAT160738 D DE NDAT160738D DE 160738D A DE160738D A DE 160738DA DE 160738 C DE160738 C DE 160738C
- Authority
- DE
- Germany
- Prior art keywords
- alcohol
- gold
- cyanide solution
- oxygen
- dissolving power
- 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.)
- Active
Links
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 8
- 235000019441 ethanol Nutrition 0.000 claims description 8
- XFXPMWWXUTWYJX-UHFFFAOYSA-N cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 claims description 6
- 239000010931 gold Substances 0.000 claims description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 2
- 229910052737 gold Inorganic materials 0.000 claims description 2
- 238000004090 dissolution Methods 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N oxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 230000005021 gait Effects 0.000 description 2
- OKKJLVBELUTLKV-UHFFFAOYSA-N methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 2
- 150000002825 nitriles Chemical class 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- PFUVRDFDKPNGAV-UHFFFAOYSA-N Sodium peroxide Chemical compound [Na+].[Na+].[O-][O-] PFUVRDFDKPNGAV-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000002349 favourable Effects 0.000 description 1
- NPDODHDPVPPRDJ-UHFFFAOYSA-N permanganate Chemical compound [O-][Mn](=O)(=O)=O NPDODHDPVPPRDJ-UHFFFAOYSA-N 0.000 description 1
- MIMJFNVDBPUTPB-UHFFFAOYSA-N potassium hexacyanoferrate(3-) Chemical compound [K+].[K+].[K+].N#C[Fe-3](C#N)(C#N)(C#N)(C#N)C#N MIMJFNVDBPUTPB-UHFFFAOYSA-N 0.000 description 1
- KWYUFKZDYYNOTN-UHFFFAOYSA-M potassium hydroxide Inorganic materials [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- -1 water Chemical compound 0.000 description 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)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
Wie bekannt, ist die goldlösende Kraft einer wässerigen Cyanidlösung abhängig von dem Luftsauerstoff, welcher in der Lösung enthalten ist, z. B.As is known, the gold-dissolving power of an aqueous cyanide solution depends on the atmospheric oxygen contained in the solution, e.g. B.
2 Au + 4 KCy + O + H2O =2 Au + 4 KCy + O + H 2 O =
2 AuKCy2 + 2 KOH. 2 AuKCy 2 + 2 KOH.
Da Sauerstoff in Wasser sehr wenig löslich ist, und die Gegenwart von Cyanmetallen dieBecause oxygen is very sparingly soluble in water, and the presence of cyanides die
ίο Löslichkeit des Sauerstoffs noch herabdrückt, so fehlt es nicht an Vorschlägen, um durch Zufuhr von Sauerstoff aus anderen Quellen die goldlösende Kraft einer Cyanidlösung zu erhöhen, so z. B. durch Zusatz von Permanganat, Ferricyankalium, Natriumperoxyd usw.ίο still reduces the solubility of the oxygen, So there is no shortage of suggestions as to how to get by supplying oxygen from other sources to increase the gold-dissolving power of a cyanide solution, e.g. B. by adding permanganate, Potassium ferricyanide, sodium peroxide, etc.
Erfinder hat nun, von der Tatsache ausgehend , daß Alkohol siebenmal mehr Sauerstoff löst als wie Wasser, durch Zusatz von Alkohol die goldlösende Kraft einer wässerigen Cyanidlösung zu erhöhen versucht, und der Erfolg war überraschend günstig.Inventor now, based on the fact that alcohol has seven times more oxygen Like water, by adding alcohol it dissolves the gold-dissolving power of a watery one Tried to increase cyanide solution, and the success was surprisingly favorable.
Schon ein geringer Zusatz — wenige Hundertteile — von Alkohol, insbesondere Äthylalkohol oder auch Methylalkohol, bewirkt eine erhebliche Beschleunigung der goldlösenden Kraft einer wässerigen Cyanidlösung; ein stärkerer Zusatz von Alkohol (bei reichen oder angereicherten Erzen auch wirtschaftlich ausführbar) hat dann noch den weiteren Vorteil, daß die den Golderzen beigemengten Gangarten, insbesondere die Verwitterungsprodukte dieser Gangarten, durch den Alkoholzusatz erheblich an Löslichkeit Einbuße erleiden, wodurch der schädliche, verlustbringende Einfluß dieser Stoffe auf die Cyanide vermieden wird.Even a small addition - a few hundred percent - of alcohol, in particular Ethyl alcohol, or methyl alcohol, causes a considerable acceleration of the gold-dissolving power of an aqueous cyanide solution; a stronger addition of alcohol (also economically feasible for rich or enriched ores) then still has the Another advantage is that the gaits added to the gold ores, especially the weathering products of these gaits, due to the addition of alcohol, there is a considerable loss of solubility, whereby the harmful, loss-making influence of these substances on the cyanides is avoided.
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE160738C true DE160738C (en) |
Family
ID=426674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT160738D Active DE160738C (en) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE160738C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4959080A (en) * | 1989-06-29 | 1990-09-25 | Shell Oil Company | Process for gasification of coal utilizing reactor protected interally with slag coalescing materials |
| US20030070951A1 (en) * | 1996-02-27 | 2003-04-17 | Hurley Richard D. | Shipping protector for bottles or the like |
-
0
- DE DENDAT160738D patent/DE160738C/de active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4959080A (en) * | 1989-06-29 | 1990-09-25 | Shell Oil Company | Process for gasification of coal utilizing reactor protected interally with slag coalescing materials |
| US20030070951A1 (en) * | 1996-02-27 | 2003-04-17 | Hurley Richard D. | Shipping protector for bottles or the like |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE160738C (en) | ||
| DE1211132B (en) | Preparation for the production of an aqueous, stable hyposulfite solution | |
| DE710733C (en) | Process for pickling iron and iron alloys | |
| DE179294C (en) | Process for the preparation of the indophenol: NH2 N O | |
| DE248893C (en) | ||
| DE689373C (en) | Process for the production of a sulfur-containing soap | |
| DE261984C (en) | ||
| DE287867C (en) | ||
| DE269660C (en) | ||
| DE276185C (en) | ||
| DE391553C (en) | Process for bleaching fats and oils | |
| DE64444C (en) | Process for the preparation of phenyldimethylpyrazolone and phenylmethylaethylpyrazolone | |
| DE251802C (en) | ||
| DE185183C (en) | ||
| DE325944C (en) | Process for the deacidification of nitric acid esters | |
| DE86707C (en) | ||
| DE235006C (en) | ||
| DE261460C (en) | ||
| DE85243C (en) | ||
| DE91718C (en) | ||
| DE303638C (en) | ||
| DE623075C (en) | Process for the production of colloidal solutions of metals, metal compounds and metalloids in glycol or polyglycerine | |
| DE388396C (en) | Process for the production of ammonia soda | |
| DE510054C (en) | Means for loosening and removing scale | |
| DE156998C (en) |