CN1676220A - Method for pretreating gold ore and extracting gold - Google Patents
Method for pretreating gold ore and extracting gold Download PDFInfo
- Publication number
- CN1676220A CN1676220A CN 200510020503 CN200510020503A CN1676220A CN 1676220 A CN1676220 A CN 1676220A CN 200510020503 CN200510020503 CN 200510020503 CN 200510020503 A CN200510020503 A CN 200510020503A CN 1676220 A CN1676220 A CN 1676220A
- Authority
- CN
- China
- Prior art keywords
- gold
- ore pulp
- ore
- breeze
- ultra
- 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.)
- Granted
Links
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
The present invention discloses a method for pretreating gold ore. Said method includes the following steps: adding water into ore powder to obtain ore pulp, placing the ore pulp into grinding machine to make superfine treatment to obtain ore pulp whose grain side is nano-grade, and depositing pulp-like concentrate in the bottom portion of the grinding machine. Said invention also provides a method for extracting gold, and said method includes the following steps: adopting the said pulp-like concentrate, sieving said pulp-like concentrate so as to obtain its undersized material, and drying said undersized material, namely, it is obtained gold.
Description
Technical field
The present invention relates to the extraction of noble metal, the method that especially relates to a kind of preliminary treatment gold ore and extract gold from.
Background technology
The research and development of the difficult selecting and smelting technology of gold ore are paid attention to by states such as the U.S., South Africa, Australia, Canada always.Present applied preprocess method is used in industry by the external developmental research and the back that takes the lead in basically.The research of these methods, exploitation and application make the explored unmanageable resource of external major part can both obtain the development and use of economical rationality, safety and environmental protection basically.The carbonaceous refractory gold ore that depolarization is fine still lacks outside the effective treating method, and at present, the total output of world's gold existing about 1/3 is to originate from the indissoluble gold ore deposit.21st century, the basic preprocess method of refractory gold ore mainly contained method of roasting, hot-press method and bacterial oxidation method, they have the refractory gold ore oxidation Decomposition are become golden sulfide mineral, destroy the sulfide mineral crystal structure gold that is wrapped is exposed, be beneficial to cyanidation gold-extracted denominator.But method of roasting changes responsive to operating parameter and feed composition, cause burning or underburnt easily, causes the leaching rate of gold to descend, and can produce sulfur dioxide and arsenic trioxide during roasting, comprehensively reclaims when ineffective, can severe contamination atmosphere and environment; The hot-pressure oxidation method is very high to the corrosion protection design and the material safety requirements of equipment, and the capital expenditure expense is higher, has only the large-scale plant of the day output of construction more than 1200 tons, economically just relatively rationally; The oxidization time of bacterial oxidation method is long, and pulp density is low, needs the tank diameter of big volume, and the cooling cooling that requires the expenditure of energy particularly occurs " maloperation ", and bacterium may be dead, needs the time in several weeks could recover the biomass of bacterium.China is the world important gold producing country, through exploitation for many years, easily select the smelting gold resource constantly to reduce, the situation that reserved resources is in short supply is more outstanding, but, be distributed widely in the difficult-treating gold mine in areas such as southwest, northwest and northeast, reserves account for 30% of national gold deposit geology reserves, and its prospective reserves is more considerable.Be necessary that the research and development operating condition is relatively gentle, method investment cost and producing cost are few, be more suitable for national conditions, the easier refractory gold ore preprocess method of applying at home.In addition, existing gold ore selects most of industrial flows of smelting also to exist and uses the hypertoxicity medicament or produce, discharge radioactive substance on stream, contaminated environment is serious, and long flow path and complexity, the rate of recovery is low, cost is high shortcoming, therefore, be necessary also that research and development rate of recovery height, cost are low, asepsis environment-protecting, can replace the method that extracts gold from of cyaniding.
Summary of the invention
Technical problem to be solved by this invention is to overcome above-mentioned the deficiencies in the prior art, propose that a kind of operating condition is relatively gentle, method investment cost and producing cost are few, be more suitable for national conditions, easier apply at home a kind of method of preliminary treatment gold ore.
Another technical problem to be solved by this invention is to overcome above-mentioned the deficiencies in the prior art, proposes that a kind of rate of recovery height, cost are low, asepsis environment-protecting, can replace a kind of method that extracts gold from of cyaniding.
For the method for a kind of preliminary treatment gold ore of the present invention, above-mentioned technical problem is solved like this:
The method of this preliminary treatment gold ore is that the applying nano technology is that the millimeter level is the improvement that fineness is not higher than 200 purpose preprocess methods to the ore dressing of existing gold and the used gold ore granularity of purifying, and comprises the step that earlier gold ore to be extracted is broken into breeze.
The characteristics of the method for this preliminary treatment gold ore are also to include following steps:
(1) described breeze is added water and make ore pulp;
(2) be processed into the ore pulp that granularity is a nanometer scale with described ore pulp is ultra-fine, and collect deposit pulpous state enrichment.
For the method for a kind of preliminary treatment gold ore of the present invention, above-mentioned technical problem can be solved like this:
The described step that is broken into breeze is that to be broken into granularity be breeze below 1 millimeter.
The described step that is broken into breeze is preferably to carry out in the high pressure roller pressure device, and breeze inside under the effect of high pressure stress has a lot of stress defectives, becomes a kind of micro-crack breeze.
The described step that is broken into breeze also can be carried out in hammer mill or jaw crusher, but crushing effect is poor.
The described ore pulp of making is that preferably to make solid content be 30%～50% ore pulp.Solid content is too high, and the viscosity height is unfavorable for the ultra-fine separation of gold, and solid content is low excessively, and effectively treating capacity is low, can corresponding raising production cost.
Described input grinding machine is ultra-fine, and to be processed into granularity be that the ore pulp of nanometer scale is ore pulp to be dropped into preferably to carry out the ultra-fine granularity that is processed in the ultrafine eddy flow attitude grinding machine be that nanometer scale is that granularity is not less than 12000 purpose ore pulps below 1 micron.Enter the ore pulp in the ultrafine eddy flow attitude grinding machine; because the radius apart from the axle center does not wait in the horizontal direction; thereby linear velocity difference; and have a plurality of linear velocities; therefore rotation in the horizontal direction is a speed-change process; the suffered shearing of different sections at the same inner core of ultrafine eddy flow attitude grinding machine; extruding; collision; significantly improved grinding efficiency; the disintegration of associated mineral internal tiny crack is the particle of nanometer scale below 1 micron by the ultra-fine granularity that is processed into; gold is owing to be ductile by the ultra-fine flat sheet-like goldc grains that is processed into than coarsegrain; both granularity difference are obvious; and the proportion of gold is 3～4 times of impurity proportion in the associated mineral, and the goldc grains that is included under the high speed turning effort of eddy flow attitude grinding machine in the ore can be separated; be enriched in the bottom of eddy flow attitude grinding machine.
The described ultra-fine granularity that is processed into is that the step of the ore pulp of nanometer scale also can stir in the mill at ultrafine vibromill or ultrafine and carry out, but will satisfy the ultrafine requirement, and cost is too high.
The input of described ore pulp is to adopt the pump mode of movement.
For a kind of method that extracts gold from of the present invention, above-mentioned technical problem is solved like this:
This method that extracts gold from comprises the step that earlier gold ore to be extracted is broken into breeze.
The characteristics of this method that extracts gold from are also to include following steps:
(1) described breeze is added water and make ore pulp;
(2) be processed into the ore pulp that granularity is a nanometer scale with described ore pulp is ultra-fine, and collect the pulpous state enrichment;
(3) the pulpous state enrichment is sieved;
(4) sieve to such an extent that thing is dried with described, be gold.
For a kind of method that extracts gold from of the present invention, above-mentioned technical problem can be solved like this:
The described step that is broken into breeze is that to be broken into granularity be breeze below 1 millimeter.
The described step that is broken into breeze is preferably to carry out in the high pressure roller pressure device, and breeze inside under the effect of high pressure stress has a lot of stress defectives, becomes a kind of micro-crack breeze.
The described step that is broken into breeze also can be carried out in hammer mill or jaw crusher, but crushing effect is poor.
The described ore pulp of making is that preferably to make solid content be 30%～50% ore pulp.Solid content is too high, and the viscosity height is unfavorable for the ultra-fine separation of gold, and solid content is low excessively, and effectively treating capacity is low, can corresponding raising production cost.
The described ultra-fine granularity that is processed into is that the ore pulp of nanometer scale is ore pulp to be dropped into preferably to carry out the ultra-fine granularity that is processed in the ultrafine eddy flow attitude grinding machine be the ore pulp of nanometer scale below 1 micron.
The described ultra-fine granularity that is processed into is that the step of the ore pulp of nanometer scale also can stir in the mill at ultrafine vibromill or ultrafine and carry out, but will satisfy the ultrafine requirement, and cost is too high.
The described pulpous state enrichment is sieved is to adopt 400 orders～1250 order water sieves, and gold is separated with associated mineral.
Described will sieve thing oven dry be temperature be in 105 ℃～130 ℃ the drying plant oven dry sieve thing, temperature is low excessively be difficult to evaporate sieve the moisture content in the thing, the too high performance that can influence gained gold of temperature.
Described will sieve thing oven dry be preferred temperature be in 110 ℃ the drying plant oven dry sieve thing.
Ore pulp after described pulpous state enrichment is sieved can be used as the application of rubber or plastic filler after concentrating.
Preliminary treatment gold ore method of the present invention adopts nanometer technology that the gold that is wrapped is separated with its associated mineral, utilizes the difference in specific gravity separating gold again.Operating condition is relatively gentle, has improved the recovery rate of gravity treatment, and particularly the recovery rate for refractory gold ore significantly improves, and method investment cost and producing cost are few, and cost greatly reduces, and is more suitable for national conditions, applies at home easilier.The method that extracts gold from of the present invention is saved flotation and is leached step, compares with conventional method, because the existence of nano effect, leaching process is accelerated, and the time shortens, rate of recovery height, and cost is low, chemical agent consumption not, asepsis environment-protecting can replace cyaniding.Especially the ore pulp after the enrichment of grinding machine bottom is sieved, because through ultra-fine processing, raw meal particle size is thin, specific area is big, and the surface has a lot of high energy active sites, can concentrate the filler of making rubber or plastics, and mine tailing is realized utilizing again, turns waste into wealth.
The specific embodiment
The invention will be further described below in conjunction with the specific embodiment.
This preliminary treatment gold ore method is that the gold content earlier Yexuan county, Shandong gold mine produced is 200 kilograms in the altered rock type deposit stone of 33.37 gram/tons, drop in the WG3 type high pressure roll-in mill that Shenzhen big male plant equipment Co., Ltd produces and be broken into breeze, cross 100 mesh sieves, described breeze being added water, to make solid content be 35% ore pulp again, then described ore pulp is dropped in the WXA5 type ultrafine eddy flow attitude grinding machine that Shenzhen big male plant equipment Co., Ltd produces with 10 fens clock times are ultra-fine and be processed into the ore pulp that granularity is a nanometer scale, and in grinding machine bottom deposit gold yellow pulpous state enrichment.This ultrafine eddy flow attitude grinding machine has been applied for Chinese patent, and number of patent application is 200410081580.8.
This method that extracts gold from is to take out to adopt the golden yellow pulpous state enrichment of above-mentioned preliminary treatment gold ore method in the bottom deposit of ultrafine eddy flow attitude grinding machine, behind 600 order water sieves, take out sieve thing, in being 110 ℃ baking oven, temperature dries, be gold, be weighed as 6.41 grams, the rate of recovery is up to 96%.
Ore pulp after described pulpous state enrichment is sieved can be as the filler of rubber or plastics after concentrating.
Above content be in conjunction with concrete preferred implementation to further describing that the present invention did, can not assert that concrete enforcement of the present invention is confined to these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to the scope of patent protection that the present invention is determined by claims of being submitted to.
Claims (10)
1. the method for a preliminary treatment gold ore comprises the step that earlier gold ore to be extracted is broken into breeze, it is characterized in that further comprising the steps of:
(1) described breeze is added water and make ore pulp;
(2) be processed into the ore pulp that granularity is a nanometer scale with described ore pulp is ultra-fine, and in grinding machine bottom deposit pulpous state enrichment.
2. according to the method for the described preliminary treatment gold ore of claim 1, it is characterized in that:
The described step that is broken into breeze is that to be broken into granularity be breeze below 1 millimeter.
3. according to the method for the described preliminary treatment gold ore of claim 2, it is characterized in that:
The described step that is broken into breeze is carried out in the high pressure roller pressure device.
4 methods according to any described preliminary treatment gold ore in the claim 1～3 is characterized in that:
The described ultra-fine granularity that is processed into is that the ore pulp of nanometer scale is ore pulp to be dropped into to carry out the ultra-fine granularity that is processed in the ultrafine eddy flow attitude grinding machine be the ore pulp of nanometer scale below 1 micron.
5. a method that extracts gold from comprises the step that earlier gold ore to be extracted is broken into breeze, it is characterized in that:
Also include following steps successively:
(1) described breeze is added water and make ore pulp;
(2) with the ultra-fine ore pulp that granularity is a nanometer scale, the collection pulpous state enrichment of being processed into of described ore pulp;
(3) the pulpous state enrichment is sieved;
(4) sieve to such an extent that thing is dried with described, be gold.
6. according to claim 3 or 5 described methods, it is characterized in that:
The described ore pulp of making is that to make solid content be 30%～50% ore pulp.
7. according to claim 5 or the 6 described methods that extract gold from, it is characterized in that:
The described ultra-fine granularity that is processed into is that the ore pulp of nanometer scale is ore pulp to be dropped into to carry out the ultra-fine granularity that is processed in the ultrafine eddy flow attitude grinding machine be the ore pulp of nanometer scale below 1 micron.
8. according to the described method that extracts gold from of claim 7, it is characterized in that:
It is to adopt 400 orders～1250 order water sieves that described pulpous state enrichment is sieved.
9. according to the described method that extracts gold from of claim 10, it is characterized in that:
Described will sieve thing oven dry be temperature be in 105 ℃～130 ℃ the drying plant oven dry sieve thing.
10, according to the application as rubber or plastic filler after concentrating of the ore pulp after any described pulpous state enrichment is sieved in the claim 1～9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100205036A CN100434184C (en) | 2005-03-07 | 2005-03-07 | Method for pretreating gold ore and extracting gold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100205036A CN100434184C (en) | 2005-03-07 | 2005-03-07 | Method for pretreating gold ore and extracting gold |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1676220A true CN1676220A (en) | 2005-10-05 |
| CN100434184C CN100434184C (en) | 2008-11-19 |
Family
ID=35049057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100205036A Expired - Fee Related CN100434184C (en) | 2005-03-07 | 2005-03-07 | Method for pretreating gold ore and extracting gold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100434184C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103540170A (en) * | 2013-09-26 | 2014-01-29 | 湖南有色新田岭钨业有限公司 | Modified tungsten tailings as well as preparation method and application thereof as plastic filler |
| CN108722881A (en) * | 2018-04-24 | 2018-11-02 | 福建金东矿业股份有限公司 | A kind of metal in chamber box settling sand captures beneficiation method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1125161A (en) * | 1993-11-03 | 1996-06-26 | 苏亚杰 | Device for recovery of gold from iron tailings |
| CN1142104C (en) * | 2000-09-19 | 2004-03-17 | 张美焦 | Industrial process for preparing high-purity super-fine magnetite powder |
| CN1180888C (en) * | 2001-02-22 | 2004-12-22 | 王庆中 | Superfine particle electrostatic separating method and system for separating mineral |
| CN1468659A (en) * | 2002-07-16 | 2004-01-21 | 东南大学 | Separation method of insoluble nano particles |
| CN2666556Y (en) * | 2003-09-29 | 2004-12-29 | 福建紫金矿业股份有限公司 | Micro-impregnation closed preprocessing apparatus for gold ore |
-
2005
- 2005-03-07 CN CNB2005100205036A patent/CN100434184C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103540170A (en) * | 2013-09-26 | 2014-01-29 | 湖南有色新田岭钨业有限公司 | Modified tungsten tailings as well as preparation method and application thereof as plastic filler |
| CN103540170B (en) * | 2013-09-26 | 2015-04-22 | 湖南有色新田岭钨业有限公司 | Modified tungsten tailings as well as preparation method and application thereof as plastic filler |
| CN108722881A (en) * | 2018-04-24 | 2018-11-02 | 福建金东矿业股份有限公司 | A kind of metal in chamber box settling sand captures beneficiation method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100434184C (en) | 2008-11-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102071310B (en) | Method for comprehensively utilizing gold and arsenic-containing sulfur concentrate | |
| CN101376924B (en) | Method for recycling gold from refractory gold concentrate | |
| CN108203760B (en) | Granulation-biological heap leaching process suitable for low-grade oxygen-sulfur mixed copper ore | |
| CN108325738A (en) | The step recovery method of metallic aluminium in a kind of aluminium ash | |
| CN100351407C (en) | Method for extracting gold from gold tailings | |
| CN101537394A (en) | Chemical-adding scrubbing beneficiation and enrichment method suitable for clay vanadium ore | |
| CN102826642A (en) | Method for recovering wastewater by using colloform pyrite | |
| CN107460336A (en) | A kind of processing method of golden cyanide residue | |
| CN100434184C (en) | Method for pretreating gold ore and extracting gold | |
| CN1308470C (en) | Poisonless low cost refining method for noble metals | |
| CN1295363C (en) | Poisonless extracting and refining method for noble metals | |
| CN106861927A (en) | A kind of beneficiation method of micro fine particle | |
| CN102274785A (en) | Novel environmental-friendly gold ore dressing process | |
| CN112593073A (en) | Method for recovering valuable metal minerals in tin tailings | |
| RU2283883C1 (en) | Method of preparation of ores of technogenious wastes for heap leaching of gold | |
| CN105039692A (en) | Aspergillus niger granulating and leaching method of copper tailings | |
| CN102513207B (en) | Wind driven permanent magnetic ore dressing method | |
| CN1304606C (en) | Method for extracting gold | |
| CN1765520B (en) | Method for extracting Fe from ion ore tailings | |
| CN1108876C (en) | Wet process for magnetic separation of steel slags | |
| CN214612697U (en) | System for efficiently recycling valuable elements from gold smelting slag | |
| CN101554626A (en) | Automatic non-water non-chemicla novel technology and device for gold selection | |
| CN207013028U (en) | A kind of limonite ore washing disintegrating machine | |
| CN112871415A (en) | Unconventional green separation method for uranium polymetallic ore minerals | |
| CN115404352A (en) | Copper sulfide ore leaching method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081119 Termination date: 20190307 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |