CN1211627A - Fermentation type preoxidation technique for difficult-treating gold mine - Google Patents
Fermentation type preoxidation technique for difficult-treating gold mine Download PDFInfo
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- CN1211627A CN1211627A CN97107673A CN97107673A CN1211627A CN 1211627 A CN1211627 A CN 1211627A CN 97107673 A CN97107673 A CN 97107673A CN 97107673 A CN97107673 A CN 97107673A CN 1211627 A CN1211627 A CN 1211627A
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- gold
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- 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
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Abstract
A fermentation-type preoxidizing technique for the gold ore difficult to treat includes such steps as baking gold ore, mixing ammonium salt, peroxide, oxide ,or hydroxide with potassium chlorate in water, adding it to gold ore, stirring, fermentating (or oxidizing), and conventional extraction. Its advantages are wide adaptability, good technological stability, low cost, and high gold recovery rate of treated gold ore as it is loosened.
Description
The present invention is one and is used to handle fermentation type preoxidation technique for difficult-treating gold mine, belongs to the pretreatment technology that gold refines.
Existing gold refining technique extracts for the gold in some difficult-treating gold mines does not have effect, in particularly fine dip-dye type oxidized ore, half oxidized ore, because its soil nature greatly, is easily pulled knot, its filtration, perviousness are poor, and contain multiple harmful associated element, easily in oxidation or other refining technique process, produce reactive the interference, thereby the rate of recovery of gold is reduced.
The present invention is a kind of fermentation type preoxidation technique for difficult-treating gold mine of invention, mainly be that oxidized ore or half oxidized ore that is difficult to handle refined preceding pre-treatment, gold mine and pretreatment fluid provided by the invention are carried out oxidation pre-treatment, make the gold mine after handling be easy to extract, raw gold ore, gold ore are because harmful associated element is many and complicated, conventional sinter process does not reach the effect that reclaims gold, through processing of the present invention, can solve existing these problems preferably, improve the output capacity of gold.
The present invention constitutes like this: gold mine is cured standby, ammonium salt, superoxide, oxide compound or oxyhydroxide and Potcrate mix in water and stir, then it is added in the gold mine and stir, ferment after stirring, oxidation can extract gold from according to common process, gold mine is cured to a water content 5%-20%, ammonium salt, hydrogen peroxide, oxide compound or oxyhydroxide and Potcrate mix in water and stir, stir in the gold mine that its adding is handled well then, the secondary fermentation oxidation that stirs can extract gold from according to common process, 1 ton of gold mine is cured to a water content 10%, the ammonium salt of 1-10 kilogram, hydrogen peroxide 2.5-10 kilogram, the Potcrate of 1-10 kilogram oxide compound or oxyhydroxide and 0.1 kilogram mixes respectively in 100 kilograms water and stirs, stir in the gold mine that its adding is handled well then, stir secondary fermentation, oxidation can extract gold from according to common process in 24 hours, used ammonium salt comprises ammonium sulfate, volatile salt, the oxygen ammonium oxide, superoxide comprises hydrogen peroxide, calcium peroxide, oxide compound or oxyhydroxide comprise calcium oxide, calcium hydroxide, sodium hydroxide.
Compared with prior art, the adaptability of technology provided by the invention is more intense, technology stability is good, easy to operate, the loose diafiltration of gold mine after treatment is good, the gold rate of recovery is than higher, used raw material cheapness, is easy to get, and the present invention simultaneously has reasonable effect for processing primary gold mine, gold ore.
Embodiments of the invention 1: 1 ton of gold mine is cured to a water content 10%, is 1 kilogram ammonium sulfate, concentration that the Potcrate of 2.5 kilograms, 1 kilogram calcium oxide of hydrogen peroxide of 27% and 0.1 kilogram mixes respectively in 1000 kilograms water and stirs, stir in the gold mine that its adding is handled well then, stir secondary fermentation, oxidation can extract gold from according to common process in 24 hours.
Embodiments of the invention 2: 1 ton of calcination process is crossed but the low raw gold ore of the rate of recovery cures to a water content 10%, is 5 kilograms ammonium sulfate, concentration that the Potcrate of 5 kilograms, 4 kilograms calcium oxide of hydrogen peroxide of 27% and 0.1 kilogram mixes respectively in 100 kilograms water and stirs, stir in the gold mine that its adding is handled well then, stir secondary fermentation, oxidation can extract gold from according to common process in 24 hours.
Claims (4)
1, fermentation type preoxidation technique for difficult-treating gold mine, it is characterized in that: gold mine is cured standby, ammonium salt, superoxide, oxide compound or oxyhydroxide and Potcrate mixed in water stir, then it is added in gold mine and stirs, ferment after stirring, oxidation can extract gold from according to common process.
2, according to the described this fermentation type preoxidation technique for difficult-treating gold mine of claim 1, it is characterized in that: gold mine is cured to mix in water to a water content 5%-20%, ammonium salt, hydrogen peroxide, oxide compound or oxyhydroxide and Potcrate stir, stir in the gold mine that its adding is handled well then, the secondary fermentation oxidation that stirs can extract gold from according to common process.
3, according to claim 1,2 described this fermentation type preoxidation technique for difficult-treating gold mine, it is characterized in that: 1 ton of gold mine is cured to a water content 10%, the ammonium salt of 1-10 kilogram, hydrogen peroxide 2.The Potcrate of 5-10 kilogram, 1-10 kilogram oxide compound or oxyhydroxide and 0.1 kilogram mixes respectively in 100 kilograms water and stirs, stir in the gold mine that its adding is handled well then, stir secondary fermentation, oxidation can extract gold from according to common process in 24 hours.
4, according to claim 1,2 or described this fermentation type preoxidation technique for difficult-treating gold mine, it is characterized in that: used ammonium salt comprises ammonium sulfate, volatile salt, ammonium hydroxide, superoxide comprises hydrogen peroxide, calcium peroxide, and oxide compound or oxyhydroxide comprise calcium oxide, calcium hydroxide, argon sodium oxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97107673A CN1211627A (en) | 1997-09-12 | 1997-09-12 | Fermentation type preoxidation technique for difficult-treating gold mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97107673A CN1211627A (en) | 1997-09-12 | 1997-09-12 | Fermentation type preoxidation technique for difficult-treating gold mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1211627A true CN1211627A (en) | 1999-03-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97107673A Pending CN1211627A (en) | 1997-09-12 | 1997-09-12 | Fermentation type preoxidation technique for difficult-treating gold mine |
Country Status (1)
| Country | Link |
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| CN (1) | CN1211627A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104232908A (en) * | 2014-09-17 | 2014-12-24 | 河南省岩石矿物测试中心 | Method for recovering gold from gold-containing mercury smelting tailings |
| CN109439922A (en) * | 2018-11-27 | 2019-03-08 | 昆明理工大学 | A method of the Leaching of Gold from low-grade Refractory Au-ores |
-
1997
- 1997-09-12 CN CN97107673A patent/CN1211627A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104232908A (en) * | 2014-09-17 | 2014-12-24 | 河南省岩石矿物测试中心 | Method for recovering gold from gold-containing mercury smelting tailings |
| CN104232908B (en) * | 2014-09-17 | 2017-04-12 | 河南省岩石矿物测试中心 | Method for recovering gold from gold-containing mercury smelting tailings |
| CN109439922A (en) * | 2018-11-27 | 2019-03-08 | 昆明理工大学 | A method of the Leaching of Gold from low-grade Refractory Au-ores |
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| WD01 | Invention patent application deemed withdrawn after publication |