CN206015040U - A kind of clean gold extraction element - Google Patents
A kind of clean gold extraction element Download PDFInfo
- Publication number
- CN206015040U CN206015040U CN201621052226.7U CN201621052226U CN206015040U CN 206015040 U CN206015040 U CN 206015040U CN 201621052226 U CN201621052226 U CN 201621052226U CN 206015040 U CN206015040 U CN 206015040U
- Authority
- CN
- China
- Prior art keywords
- micro
- reactive tank
- gold
- nano
- extraction element
- 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
Classifications
-
- 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
Landscapes
- Manufacture And Refinement Of Metals (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
This utility model provides a kind of clean gold extraction element, and the clean gold extraction element includes medicine system, reactive tank, solid-liquid separation system, micro-nano bubble generator and golden adsorption system.This utility model carries out gold extraction using micro-nano bubble as oxidant source, can excite the substantial amounts of hydroxyl radical free radical of generation, and hydroxyl radical free radical has strong oxidizing property, greatly improves the leaching rate of breeze.And as its bubble is minimum, considerably increase the mass-transfer efficiency of reaction., also using golden agent is proposed to the avirulent aminoacid of environment, environment-protecting asepsis, waste water can discharges through simple process for this utility model.And can adsorb when leaching, improve production efficiency.Using clean gold extraction element of the present utility model, and can make the leaching rate of easily leaching gold mine more than 90% using the process for extracting gold that golden agent and modification PAN adsorbed films is carried without cyanogen aminoacid, make not pretreated Refractory Au-ores leaching rate be more than 85%.
Description
Technical field
This utility model belongs to field of hydrometallurgy, is related to a kind of clean gold extraction element.
Background technology
Extraction of gold by cyanidation technique is the main method for carrying gold from Ore or concentrate.Since New Zealand's Ke Luen ore deposits in 1889
The cyanidation gold-extracted factory of First in the world is built up, extraction of gold by cyanidation has the history of more than 100 years so far, and extraction of gold by cyanidation has back
The features such as high income, Ore wide adaptability.But, due to the hypertoxic characteristic of cyanide so that the production of cyanide, transport, deposit
Storage, use and the waste containing cyanide all produces grave danger to environmental and human health impacts.Its dump leaching gold-extracting is to surface water, underground
Water and soil all constitute grave danger.Current people to environmental conservation pay attention to day by day, increasingly will receive by the therefore use of cyanide
To restriction.
In addition cyanide carries gold as to refractory mineral, the Ore leaching rate such as containing pyrite and mispickel is very low, generally
Be less than 30%, it is therefore desirable to the pretreatment of complexity is carried out to such Ore, increase extraction of gold process cost and operation difficulty.
The gold for being referred to a kind of use thiourea in CN203513764U leaches blood circulation, using leaching system,
But do not refer to the leaching rate using thiourea gold extraction in patent, only publicity one kind puies forward golden blood circulation.Public in CN104911371A
Show that a kind of low toxicity proposes golden agent, comprising sodium hexameta phosphate 12-12.4 parts, sour sodium 7-7.4 parts, sodium ferrocyanide 9.4-9.8 parts, sulfur
Change sodium 10.3-10.7 parts, sulfur 13.3-13.7 parts, sodium bromide 10.4-10.8 parts, sodium chloride 6.3-6.7 parts, manganese dioxide
8.2-8.6 part, carbamide 11.8-12.2 parts, calcined soda for industry 9.3-9.7 parts.The golden agent that carries that the patent is proposed still contains Sodium cyanate (NaOCN)
And the Cyanogran. of complexation, still there is toxicity.A kind of wet method containing refractory gold ores such as arsenic, antimony is disclosed in CN1814831A
Pretreatment and bridge without platform method.Its bridge without platform still needs acid chloride oxidant and carries out pretreatment, and which is carried without cyanogen
Gold is extracted gold from as oxide isolation using chlorine.
Therefore, how a kind of clean gold extraction element is provided, with cleaning, high efficiency extraction gold, becomes art technology
Personnel's important technological problems urgently to be resolved hurrily.
Utility model content
The shortcoming of prior art in view of the above, the purpose of this utility model are that providing a kind of clean gold extracts dress
Put, for solving traditional extraction of gold process pollution environment, severe toxicity, the low problem of the not preprocessed leaching efficiency of refractory mineral.
For achieving the above object and other related purposes, this utility model provides a kind of clean gold extraction element, described
Clean gold extraction element includes medicine system, reactive tank, solid-liquid separation system, micro-nano bubble generator and gold absorption system
System；Wherein：
The medicine system is connected to the reactive tank, for adding gold extractant to the reactive tank；
The solid-liquid separation system is connected to the reactive tank and the micro-nano air Bubble generating apparatus, described for extracting
Mixed liquor in reactive tank, and after the mixed liquor of extraction is carried out solid-liquid separation, it is divided into two-way output, wherein dense for breeze all the way
Contracting liquid, exports to the reactive tank, and another road is the clear liquor comprising less solid, exports to the micro-nano bubble and produces dress
Put；
The micro-nano air Bubble generating apparatus are connected to the solid-liquid separation system, the reactive tank and the gold absorption system
System, for being mixed into air in the clear liquor from the solid-liquid separation system and producing micro-nano bubble, and will include micro-
The clear liquor of nano bubble is delivered to the reactive tank or the golden adsorption system；
The golden adsorption system is connected to the micro-nano air Bubble generating apparatus and the reactive tank, for absorption from institute
The gold ion in the clear liquor of micro-nano air Bubble generating apparatus is stated, while the clear liquor that inhales after gold is transmitted back to the reactive tank.
Alternatively, the reactive tank is provided with PH meters, for measuring the pH value of mixed liquor in reactive tank.
Alternatively, the medicine system includes dosing tank and dosing pump；The dosing pump be connected to the dosing tank with anti-
Answer between groove.
Alternatively, the solid-liquid separation system includes centrifugal pump and ceramic membrane separation system；The ceramic membrane separation system
Including inlet, breeze concentrated solution outlet and pure water inlet；Described centrifugal pump one end is connected with the outlet of the reactive tank, another
End is connected to the inlet of the ceramic membrane separation system；The breeze concentrated solution outlet of the ceramic membrane separation system is connected to institute
Reactive tank is stated, pure water inlet is connected to the micro-nano air Bubble generating apparatus.
Alternatively, for aluminium oxide or zirconium oxide, aperture is 0.1-1 to the ceramic membrane materials that the ceramic membrane separation system is adopted
μm.
Alternatively, the solid-liquid separation system includes cyclone.
Alternatively, the micro-nano bubble generator includes gas-liquid mixing pump or pressure air-dissolving device.
Alternatively, a diameter of 10nm-10 μm of the micro-nano bubble.
Alternatively, polyacrylonitrile nanofiber film absorption gold ion of the golden adsorption system using amidoxim.
Alternatively, the polyacrylonitrile nanofiber film preparation of the amidoxim is on macromolecule non-woven fabrics.
Alternatively, the polyacrylonitrile nanofiber film of the amidoxim is rolled membrane module form.
Alternatively, the golden adsorption system includes adsorption tank, and the adsorption tank includes and the micro-nano bubble generator
The charging aperture of connection and the discharging opening being connected with the reactive tank；The polyacrylonitrile nanofiber film of the amidoxim is positioned over
In the adsorption tank.
Alternatively, the golden adsorption system is the rolled membrane module, and the rolled membrane module lower end is provided with micro- with described
The charging aperture of air Bubble generating apparatus of receiving connection, upper end is provided with the discharging opening being connected with the reactive tank.
Alternatively, the golden adsorption system adopts activated carbon adsorption gold ion.
This utility model also provides a kind of process for extracting gold, and the process for extracting gold is using described in above-mentioned any one
Clean gold extraction element.
Alternatively, the process for extracting gold comprises the steps：
S1：Powder containing gold mine is added in the reactive tank, and gold extractant is added by the medicine system described
Reactive tank, makes the breeze reach preset concentration；
S2：The medicine system is closed, the solid-liquid separation system and the micro-nano bubble generator is opened, is made described
Reactive tank, solid-liquid separation system and micro-nano bubble generator form closed circuit circulatory system, carry out the leaching of gold；
S3：The golden adsorption system is opened, while carrying out the leaching of gold and the absorption of gold.
Alternatively, in step S3, the valve that the micro-nano air Bubble generating apparatus lead to the reactive tank is closed,
The clear liquor for including micro-nano bubble is made only to be delivered to the golden adsorption system.
Alternatively, the gold extractant is without cyanogen extractant.
Alternatively, described without cyanogen extractant comprising mass fraction for 0.5%-2% aminoacid, mass fraction is 0.2%-
2% alkali, solvent are water.
Alternatively, the aminoacid is included in glycine, alanine, aspartic acid, phenylalanine, Leucine, histidine
One or more.
Alternatively, the alkali includes one or more in caustic soda, quick lime, Calx.
Alternatively, ozone is added to be used as co-oxidants by the air inlet pipe of the micro-nano air Bubble generating apparatus.
Alternatively, hydrogen peroxide is added in the reactive tank as co-oxidants.
Alternatively, in step S1, after adding the gold extractant, the quality of breeze described in the reactive tank
Fraction is 1-50%.
Alternatively, in step S2 and step S3, in the reactive tank, the temperature of mixed liquor is 25-80 DEG C, and PH is tieed up
Hold in 9-13.
Alternatively, gas-liquid mixed ratio when the micro-nano air Bubble generating apparatus produce micro-nano bubble is 1:10-1:50.
Alternatively, using the gold ion of golden adsorption system absorption described in aminoacid desorbing.
Alternatively, the aminoacid is included in glycine, alanine, aspartic acid, phenylalanine, Leucine, histidine
One or more.
As described above, clean gold extraction element of the present utility model, has the advantages that：
(1) this utility model carries out gold extraction using micro-nano bubble as oxidant source.Micro-nano bubble is referred to
Micro-bubble of the diameter between ten microns (μm) and tens nanometer (nm) is produced when bubble occurs.There is the bubble super large to compare table
Area, and the rate of climb is slow, therefore its solvability is greatly increased.The solvability of micro-nano bubble increases by 20 than general air
Wan Bei.Micro-nano bubble ruptures moment, and due to the acute variation that gas-liquid interface disappears, the high concentration ion gathered on interface will be put aside
Chemical energy abrupt release can out, now excite the substantial amounts of hydroxyl radical free radical of generation, and hydroxyl radical free radical has strong oxidizing property,
Greatly improve the leaching rate of breeze.And as its bubble is minimum, considerably increase the mass-transfer efficiency of reaction.
(2) also using golden agent is proposed to the avirulent aminoacid of environment, reusable edible, environment-protecting asepsis give up this utility model
Water can discharge through simple process.And can adsorb when leaching, improve production efficiency.
(3) relatively conventional Cyanogran. extraction of gold process, using clean gold extraction element of the present utility model, and using without cyanogen
Aminoacid proposes golden agent and the process for extracting gold of modification PAN adsorbed films and can make the leaching rate of easily leaching gold mine more than 90%, reachable
To 95%, suitable with prior art；Refractory Au-ores can be made, its leaching rate not preprocessed of the Ore such as containing pyrite mispickel is big
In 85%, and 30% is less than without the leaching rate of such Ore tradition cyanidation technology of pretreatment, gold of the present utility model
Extracting method is greatly improved the leaching rate of Refractory Au-ores.
(4) adsorption capacity of the modified PAN films that this utility model is adopted is up to 120mg/g, far above existing process activity
The adsorption capacity of charcoal.
Description of the drawings
Fig. 1 is shown as clean gold extraction element of the present utility model structural representation in one embodiment.
Fig. 2 is shown as the process chart of this utility model process for extracting gold.
Component label instructions
1 dosing tank
2 dosing pumps
3 reactive tanks
4 centrifugal pumps
5 ceramic membrane separation systems
6 micro-nano bubble generators
7 gold medal adsorption systems
8 pH meters
9 charge doors
10 air inlets
S1～S3 steps
Specific embodiment
Embodiment of the present utility model is described below by way of specific instantiation, those skilled in the art can be by this theory
Content disclosed by bright book understands other advantages of the present utility model and effect easily.In addition this utility model can also pass through
Different specific embodiments is carried out or applies, and the every details in this specification can also be based on different viewpoints and answer
With, without departing from of the present utility model spirit under carry out various modifications and changes.
Refer to Fig. 1 to Fig. 2.It should be noted that the diagram provided in the present embodiment only illustrates this in a schematic way
The basic conception of utility model, when only showing then the component relevant with this utility model in schema rather than implementing according to reality
Component count, shape and size are drawn, and during its actual enforcement, the kenel of each component, quantity and ratio can change for a kind of random
Become, and its assembly layout kenel be likely to increasingly complex.
Embodiment 1
This utility model provides a kind of clean gold extraction element, refers to Fig. 1, is shown as the structural representation of the device
Figure, including medicine system, reactive tank 3, solid-liquid separation system, micro-nano bubble generator 6 and golden adsorption system 7.
Specifically, the reactive tank 3 is provided with pH meter 8 and charge door 9, and the charge door 9 is used for adding in the reactive tank 3
Enter breeze, the pH meter 8 is used for the pH value for measuring mixed liquor in reactive tank 3.
Specifically, the medicine system is connected to the reactive tank 3, for adding gold extractant to the reactive tank 3.
As an example, the medicine system includes dosing tank 1 and dosing pump 2；The dosing pump 2 is connected to the dosing tank
Between 1 and reactive tank 3.Valve is equipped with before and after the dosing pump 2, after gold extractant is prepared in the drug slot 1, can
Gold extractant is pumped into the reactive tank 3 using the dosing pump 2 by valve before and after unlatching.
Specifically, the solid-liquid separation system is connected to the reactive tank 3 and the micro-nano air Bubble generating apparatus 6, uses
Mixed liquor in the extraction reactive tank 3, and after the mixed liquor of extraction is carried out solid-liquid separation, it is divided into two-way output, wherein one
Road is breeze concentrated solution, exports to the reactive tank 3, and another road is the clear liquor comprising less solid, exports to the micro-nano
Rice air Bubble generating apparatus 6.
As an example, the solid-liquid separation system includes centrifugal pump 4 and ceramic membrane separation system 5.The ceramic membrane separation
System 5 includes inlet, breeze concentrated solution outlet and pure water inlet；The outlet phase of 4 one end of the centrifugal pump and the reactive tank 3
Even, the other end is connected to the inlet of the ceramic membrane separation system 5；The breeze concentrated solution outlet of the ceramic membrane separation system
The reactive tank 3 is connected to, pure water inlet is connected to the micro-nano air Bubble generating apparatus 6.Wherein, obtain through solid-liquid separation
The clear liquor comprising less solid exported to the micro-nano generator 6 by the pure water inlet.
Wherein, the centrifugal force produced when centrifugal pump (centrifugal pump) is referred to and rotated by impeller is conveying liquid
Pump.In the present embodiment, before and after the centrifugal pump, valve is equipped with.Set between the breeze concentrated solution outlet and the reactive tank 3
There is valve, between the pure water inlet and the micro-nano bubble generator 6, be provided with valve.
Ceramic membrane separation technique is a kind of fluid separation process of " cross flow filter " form：Material liquid high velocity stream in the membrane tube
Dynamic, the clarified permeation liquid under pressure-driven containing small molecule component outwards passes through film along direction normal thereto, containing macromolecular components
Muddy concentrated solution be rejected by so that fluid reach separate, concentration, the purpose of purification.
Ceramic membrane be by porosity 30%～50%, the ceramic monolith of aperture 50nm～15 μm, using sol-gel process or
The asymmetric compound film that other techniques are made.Structure for detached ceramic membrane is usually sandwich style：Supporting layer
(also known as carrier layer), transition zone (also known as intermediate layer), film layer (also known as stratum disjunctum).The aperture of wherein supporting layer is generally 1～20 μ
M, porosity are 30%～65%, and which acts on the mechanical strength for being to increase film；The aperture of the aperture ratio supporting layer in intermediate layer is little, its
Effect is to prevent infiltration of the granule to porous support layer in film layer preparation process, about 20～60 μm of thickness, and porosity is 30%
～40%；Film layer has a separation function, aperture from 0.8nm～1 μm, about 3～10 μm of thickness, porosity is 40%～
55%.The pore-size distribution of whole film is gradually reduced to film layer by supporting layer, forms asymmetric structure distribution.Porous ceramic film has
There are excellent high temperature resistant, solvent resistant, acid-proof alkaline and high mechanical strength, regenerating easily.
As an example, for aluminium oxide or zirconium oxide, aperture is the ceramic membrane materials that the ceramic membrane separation system 5 is adopted
0.1-1 μm, preferably 0.1-0.5 μm.Herein, the aperture of the ceramic membrane refers to the aperture of stratum disjunctum.
In another embodiment, the solid-liquid separation system may also be employed cyclone form.The ultimate principle of cyclone is
Two-phase or multiphase mixture such as the liquid-liquid with certain density contrast, liquid-solid, liquid-gas is carried out point under the influence of centrifugal force
From.Mixed liquor is tangentially entered cyclone with certain pressure, high speed rotational flow field is produced in cylinder intracavity.Mixture Midst density
Big component is axially simultaneously moved downward in the presence of eddy flow field, is moved radially outwards, and reaches cone segments along wall
Move downward, and discharged by underflow opening, material is thus formed outer swirling flow field；The little component of density is transported to central axial direction
Dynamic, and an inside vortex for moving upwards is formed in axis centre, then discharged by overfall, thus reached two-phase laminated flow
Purpose.
Specifically, the micro-nano air Bubble generating apparatus 6 are connected to the solid-liquid separation system, the reactive tank 3 and institute
Golden adsorption system 7 is stated, for being mixed into air in the clear liquor from the solid-liquid separation system and producing micro-nano bubble, and
The clear liquor for including micro-nano bubble is delivered to the reactive tank 3 or the golden adsorption system 7.Wherein, the oxygen in air
Gas is used as oxidant.
Micro-nano bubble refer to bubble occur when produce diameter between ten microns (μm) and tens nanometer (nm) (for example
10nm-10 μm) micro-bubble.The bubble has extra specific surface area, and the rate of climb is slow, and therefore its solvability increases
Plus.The solvability of micro-nano bubble increases by 200,000 times than general air.Micro-nano bubble ruptures moment, as gas-liquid interface disappears
Acute variation, the chemical energy abrupt release that puts aside can out, now excite generation big by the high concentration ion gathered on interface
The hydroxyl radical free radical of amount, and hydroxyl radical free radical has strong oxidizing property, greatly improves the leaching rate of breeze.And due to its bubble
Minimum, considerably increase the mass-transfer efficiency of reaction.
As an example, the micro-nano bubble generator 6 adopts gas-liquid mixing pump, and gas-liquid mixed ratio is 1:10-1:50,
Preferably 1:10-1:20.The suction inlet of gas-liquid mixing pump can utilize suction function to suck gas, so without the need for adopting air pressure
Contracting machine and vacuum pump.Liquid is stirred by the impeller of pump of rotation with gas mixing at a high speed, so without the need for agitator and blender.
As the pressurization in pump mixes, gas fully dissolved with liquid, and dissolved efficiency is up to 80～100%.So without the need for pressurized bulk
The reaction tower of dissolving or costliness can produce high dissolution liquid.One gas-liquid mixing pump can carry out gas-liquid attraction, mixing, molten
High dissolution liquid is simultaneously directly delivered to point of use by solution.Therefore, molten gas-liquid can be improved using gas-liquid mixing pump and produces efficiency, simplification
Device for making, save space, save operating cost and maintenance cost.
In another embodiment, the micro-nano bubble generator 6 may also be employed pressure air-dissolving device, and liquid is used by which
Water pump is pressurized to 3-4kg/cm2And dissolving is sent into, in tank, air is substantially soluble in liquid, then through releasing in flotation tank
Put device and reduce to suddenly normal pressure, the supersaturated air being at this moment dissolved in liquid forms micro-nano bubble.
Specifically, the golden adsorption system 7 is connected to the micro-nano air Bubble generating apparatus 6 and the reactive tank 3, is used for
Gold ion of the absorption in the clear liquor of the micro-nano air Bubble generating apparatus 6, while the clear liquor that inhales after gold is transmitted back to
The reactive tank 3, realizes adsorbing when leaching, improve production efficiency.
As an example, polyacrylonitrile nanofiber film (referred to as modification PAN of the golden adsorption system 7 using amidoxim
Film) absorption gold ion.The adsorption capacity of modified PAN films is up to 120mg/g, far above the adsorption capacity of existing process activated carbon.
Certainly, in other embodiments, also may be selected to adopt activated carbon adsorption gold ion.
A kind of preparation method and application of nano fibrous membrane absorbent module, the nanometer is disclosed in patent CN105080509A
Fibrous membrane passes through electrostatic spinning in PET nonwoven surface composite polypropylene nitrile (PAN) nano fibrous membranes, then by the fibrous membrane handss
Work or machinery roll into wound module, finally by membrane module amidoxim.This patent exactly employs preparation in above patent
Modified PAN membrane modules carry out the absorption of gold ion in leachate.
As an example, the golden adsorption system 7 includes adsorption tank, and the adsorption tank includes producing dress with the micro-nano bubble
Put the charging aperture and the discharging opening being connected with the reactive tank 3 of 6 connections；The polyacrylonitrile nanofiber film of the amidoxim is put
It is placed in the adsorption tank.When leachate enters the polyacrylonitrile nanofiber of simultaneously amidoxim described in submergence in the adsorption tank
Film, you can realize the absorption of gold ion.Wherein, the polyacrylonitrile nanofiber film of the amidoxime being placed in the adsorption tank can
Think folded form or rolled membrane module form.
In another embodiment, the golden adsorption system 7 also can directly adopt the rolled membrane module, the rolled film group
Part lower end is provided with and connects 6 charging apertures for connecing with the micro-nano bubble generator, and upper end is provided with the discharging being connected with the reactive tank 3
Mouthful.Leachate can be entered in rolled membrane module by the charging aperture, then returns the reactive tank 3 via the discharging opening.
Clean gold extraction element of the present utility model, is divided using ceramic membrane as oxidant source using micro-nano bubble
Solid-liquid separation is carried out from system or cyclone, gold ion absorption is carried out using modified PAN films, it is possible to achieve adsorbed when leaching,
Improve production efficiency, and greatly improve the leaching rate of breeze.
Embodiment 2
This utility model also provides a kind of process for extracting gold, and the process for extracting gold is using any one in embodiment 1
Clean gold extraction element described in.
Fig. 2 is referred to, the process chart of the process for extracting gold is shown as, is comprised the steps：
Step S1 is first carried out：Powder containing gold mine is added in the reactive tank, and gold is carried by the medicine system
Take agent and add the reactive tank, make the breeze reach preset concentration.
Specifically, the powder containing gold mine can be any powder containing gold mine, can be obtained by gold containing ore is beaten powder.The ore deposit
The mean diameter of powder is preferably 0.1-500 μm.The gold extractant can adopt existing any gold extractant.The present embodiment
In, the gold extractant is preferably adopted without cyanogen extractant, to reduce the pollution to environment.
As an example, described without cyanogen extractant comprising mass fraction for 0.5%-2% aminoacid, mass fraction is
The alkali of 0.2%-2%, solvent are water.Wherein, the aminoacid includes glycine, alanine, aspartic acid, phenylalanine, bright
One or more in propylhomoserin, histidine.The alkali includes one or more in caustic soda, quick lime, Calx.
In one embodiment, described without cyanogen extractant be preferably comprising mass fraction for 0.5%-1.5% aminoacid,
PH value is 9-13.
In another embodiment, described without cyanogen extractant preferably comprise mass fraction be 0.6%-1% aminoacid, pH value
For 10-12.
As an example, after adding the gold extractant, the mass fraction of breeze described in the reactive tank is 1-50%,
1-30% is preferably in the present embodiment.
Then execution step S2：The medicine system is closed, the solid-liquid separation system is opened and the micro-nano bubble is produced
Generating apparatus, make the reactive tank, solid-liquid separation system and micro-nano bubble generator form closed circuit circulatory system, carry out the leaching of gold
Go out.
Specifically, the mixed liquor in reactive tank is pumped to the solid-liquid separation system, and breeze concentrated solution returns reactive tank and enters
Row circulation, clear liquor are again introduced into reactive tank after entering the micro-nano air Bubble generating apparatus and are circulated.
This step can maintain Preset Time, such as 8-72 hours so that the gold in breeze is fully leached.In this process,
In the reactive tank, the temperature of mixed liquor is 25-80 DEG C, and preferably 40-70 DEG C, PH maintains 9-13, preferably 10-12.
As an example, gas-liquid mixed ratio when the micro-nano air Bubble generating apparatus produce micro-nano bubble is 1:10-1:
50, preferably 1:10-1:30.
Further, ozone can be added to be used as co-oxidants by the air inlet pipe of the micro-nano air Bubble generating apparatus, or
Hydrogen peroxide is added in the reactive tank as co-oxidants, to improve reaction rate.The concentration of oxidant is preferably in 1.1%-
1%.
Then execution step S3：The golden adsorption system is opened, while carrying out the leaching of gold and the absorption of gold.
Specifically, the clear liquor from the micro-nano bubble enters the absorption that the golden adsorption system realizes gold, and from
The golden adsorption system outlet returns the reactive tank and is circulated, so as to realize adsorbing when leaching.In this process, described
In reactive tank, the temperature of mixed liquor is 25-80 DEG C, and preferably 40-70 DEG C, PH maintains 9-13, preferably 10-12.
In the present embodiment, can select to close the valve that the micro-nano air Bubble generating apparatus lead to the reactive tank, make
The clear liquor for including micro-nano bubble is only delivered to the golden adsorption system.In another embodiment, it is also possible to keep the valve
Door makes to include the clear liquor of micro-nano bubble while being delivered to the reactive tank and the gold absorption system in opening
System.
The gold ion of golden adsorption system absorption described in aminoacid desorbing can subsequently be adopted.The aminoacid include glycine,
One or more in alanine, aspartic acid, phenylalanine, Leucine, histidine.
Process for extracting gold of the present utility model carries golden agent, environment-protecting asepsis, waste water using to the avirulent aminoacid of environment
Can discharge through simple process.And can adsorb when leaching, improve production efficiency.Refractory mineral is not preprocessed also to be can reach very
High leaching rate.
Embodiment 3
Contain sulfur gold ore, its main component is that powder beaten by quartz 65%, kaolinite 8%, pyrophyllite 20%, pyrite 8%, warp
Afterwards, particle diameter is less than 74 μm, fills appropriate breeze in reactive tank.Configure in dosing tank without cyanogen extractant, glycine concentration is
0.75%, pH sodium hydroxide is adjusted to 11-12, squeezes into reactive tank by dosing pump, and control breeze concentration is closed and added 5%
Teat pipette, opens ceramic membrane separation system, gas-liquid mixing pump, it is ensured that liquid-gas ratio 10：1, pressure maintains 0.3MPa.After question response 8h,
Valve before and after modification PAN film adsorption systems is opened, starts to adsorb when leaching.After 24h, the leaching rate for obtaining breeze is more than 90%.
The gold of PAN films absorption can use glycine desorbing.
Embodiment 4
Contain sulfur gold ore, its main component is that powder beaten by quartz 65%, kaolinite 8%, pyrophyllite 20%, pyrite 8%, warp
Afterwards, particle diameter is less than 74 μm, fills appropriate breeze in reactive tank.Configure in dosing tank without cyanogen extractant, glycine concentration is
0.75%, pH sodium hydroxide is adjusted to 11-12, squeezes into reactive tank by dosing pump, and control breeze concentration is closed and added 30%
Teat pipette, opens ceramic membrane separation system, gas-liquid mixing pump, it is ensured that liquid-gas ratio 10:1, pressure maintains 0.3MPa.By gas-liquid mixed
The air inlet pipe of pump adds ozone as co-oxidants, after addition is 0.5% question response 8h, opens modification PAN film adsorption systems
Valve, starts to adsorb when leaching in front and back.After 48h, the leaching rate for obtaining breeze is more than 90%.The gold of PAN films absorption can be with sweet
Propylhomoserin desorbing.
Embodiment 5
Arsenic-containing gold ore, its main component are quartzy 85%, pyrite 5%, mispickel 10%, and through beating after powder, particle diameter is less than 74 μ
M, fills appropriate breeze in reactive tank.Configure in dosing tank without cyanogen extractant, glycine concentration is 1%, pH sodium hydroxide
Adjust to 11-12, reactive tank is squeezed into by dosing pump, control breeze concentration is closed dosing pump 10%, opens ceramic membrane separation
System, gas-liquid mixing pump, it is ensured that liquid-gas ratio 10:1, pressure maintains 0.3MPa.Ozone is added by the air inlet pipe of gas-liquid mixing pump
As co-oxidants, after addition is 0.5% question response 8h, valve before and after modification PAN film adsorption systems is opened, started when leaching
Absorption.After 24h, the leaching rate for obtaining breeze is more than 85%.The gold of PAN films absorption can use glycine desorbing.
In sum, clean gold extraction element of the present utility model, has the advantages that：
(1) this utility model carries out gold extraction using micro-nano bubble as oxidant source.Micro-nano bubble is referred to
Micro-bubble of the diameter between ten microns (μm) and tens nanometer (nm) is produced when bubble occurs.There is the bubble super large to compare table
Area, and the rate of climb is slow, therefore its solvability is greatly increased.The solvability of micro-nano bubble increases by 20 than general air
Wan Bei.Micro-nano bubble ruptures moment, and due to the acute variation that gas-liquid interface disappears, the high concentration ion gathered on interface will be put aside
Chemical energy abrupt release can out, now excite the substantial amounts of hydroxyl radical free radical of generation, and hydroxyl radical free radical has strong oxidizing property,
Greatly improve the leaching rate of breeze.And as its bubble is minimum, considerably increase the mass-transfer efficiency of reaction.
(2) also using golden agent is proposed to the avirulent aminoacid of environment, reusable edible, environment-protecting asepsis give up this utility model
Water can discharge through simple process.And can adsorb when leaching, improve production efficiency.
(3) relatively conventional Cyanogran. extraction of gold process, using clean gold extraction element of the present utility model, and using without cyanogen
Aminoacid proposes golden agent and the process for extracting gold of modification PAN adsorbed films and can make the leaching rate of easily leaching gold mine more than 90%, reachable
To 95%, suitable with prior art；Refractory Au-ores can be made, its leaching rate not preprocessed of the Ore such as containing pyrite mispickel is big
In 85%, and 30% is less than without the leaching rate of such Ore tradition cyanidation technology of pretreatment, gold of the present utility model
Extracting method is greatly improved the leaching rate of Refractory Au-ores.
(4) adsorption capacity of the modified PAN films that this utility model is adopted is up to 120mg/g, far above existing process activity
The adsorption capacity of charcoal.
So, this utility model effectively overcomes various shortcoming of the prior art and has high industrial utilization.
Above-described embodiment only illustrative principle of the present utility model and its effect are new not for this practicality is limited
Type.Any person skilled in the art all can be carried out to above-described embodiment without prejudice under spirit and the scope of the present utility model
Modifications and changes.Therefore, such as those of ordinary skill in the art without departing from the essence disclosed in this utility model
All equivalent modifications completed under god and technological thought or change, should be covered by claim of the present utility model.
Claims (14)
1. a kind of clean gold extraction element, it is characterised in that：The clean gold extraction element includes medicine system, reaction
Groove, solid-liquid separation system, micro-nano bubble generator and golden adsorption system；
Wherein：The medicine system is connected to the reactive tank, for adding gold extractant to the reactive tank；
The solid-liquid separation system is connected to the reactive tank and the micro-nano air Bubble generating apparatus, for extracting the reaction
Mixed liquor in groove, and after the mixed liquor of extraction is carried out solid-liquid separation, it is divided into two-way output, wherein it is breeze concentrated solution all the way,
Export to the reactive tank, another road is the clear liquor comprising less solid, export to the micro-nano air Bubble generating apparatus；
The micro-nano air Bubble generating apparatus are connected to the solid-liquid separation system, the reactive tank and the golden adsorption system,
For being mixed into air in the clear liquor from the solid-liquid separation system and producing micro-nano bubble, and will include micro-nano
The clear liquor of bubble is delivered to the reactive tank or the golden adsorption system；
The golden adsorption system is connected to the micro-nano air Bubble generating apparatus and the reactive tank, for absorption from described micro-
Gold ion in the clear liquor of nano bubble generator, while be transmitted back to the reactive tank by the clear liquor that inhales after gold.
2. clean gold extraction element according to claim 1, it is characterised in that：The reactive tank is provided with PH meters, is used for
The pH value of mixed liquor in measurement reactive tank.
3. clean gold extraction element according to claim 1, it is characterised in that：The medicine system include dosing tank and
Dosing pump；The dosing pump is connected between the dosing tank and reactive tank.
4. clean gold extraction element according to claim 1, it is characterised in that：The solid-liquid separation system includes being centrifuged
Pump and ceramic membrane separation system；The ceramic membrane separation system includes inlet, breeze concentrated solution outlet and pure water inlet；Described
Centrifugal pump one end is connected with the outlet of the reactive tank, and the other end is connected to the inlet of the ceramic membrane separation system；Described
The breeze concentrated solution outlet of ceramic membrane separation system is connected to the reactive tank, and pure water inlet is connected to the micro-nano bubble and produces
Generating apparatus.
5. clean gold extraction element according to claim 4, it is characterised in that：The ceramic membrane separation system is adopted
Ceramic membrane materials are aluminium oxide or zirconium oxide, and aperture is 0.1-1 μm.
6. clean gold extraction element according to claim 1, it is characterised in that：The solid-liquid separation system includes eddy flow
Device.
7. clean gold extraction element according to claim 1, it is characterised in that：The micro-nano bubble generator bag
Include gas-liquid mixing pump or pressure air-dissolving device.
8. clean gold extraction element according to claim 1, it is characterised in that：The micro-nano bubble a diameter of
10nm-10μm.
9. clean gold extraction element according to claim 1, it is characterised in that：The golden adsorption system adopts amidoxim
The polyacrylonitrile nanofiber film absorption gold ion of change.
10. clean gold extraction element according to claim 9, it is characterised in that：The polyacrylonitrile of the amidoxim
Nano fibrous membrane is prepared on macromolecule non-woven fabrics.
11. clean gold extraction elements according to claim 9, it is characterised in that：The polyacrylonitrile of the amidoxim
Nano fibrous membrane is rolled membrane module form.
The 12. clean gold extraction elements according to claim 9-11 any one, it is characterised in that：The gold absorption system
System includes that adsorption tank, the adsorption tank are included the charging aperture being connected with the micro-nano bubble generator and connected with the reactive tank
The discharging opening for connecing；The polyacrylonitrile nanofiber film of the amidoxim is positioned in the adsorption tank.
13. clean gold extraction elements according to claim 11, it is characterised in that：The golden adsorption system is the volume
Formula membrane module, the rolled membrane module lower end are provided with the charging aperture being connected with the micro-nano bubble generator, upper end be provided with
The discharging opening of the reactive tank connection.
14. clean gold extraction elements according to claim 1, it is characterised in that：The golden adsorption system is using activity
Charcoal adsorbs gold ion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621052226.7U CN206015040U (en) | 2016-09-13 | 2016-09-13 | A kind of clean gold extraction element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621052226.7U CN206015040U (en) | 2016-09-13 | 2016-09-13 | A kind of clean gold extraction element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206015040U true CN206015040U (en) | 2017-03-15 |
Family
ID=58260136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621052226.7U Active CN206015040U (en) | 2016-09-13 | 2016-09-13 | A kind of clean gold extraction element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206015040U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106191459A (en) * | 2016-09-13 | 2016-12-07 | 中国科学院上海高等研究院 | A kind of clean gold extraction element and method |
| CN108085497A (en) * | 2017-12-01 | 2018-05-29 | 上海铀金信息科技有限公司 | The extracting method of gold element in a kind of electronic waste |
| CN115845748A (en) * | 2022-11-25 | 2023-03-28 | 郑州大学 | Micro-nano bubble ozone coupling type ore pulp oxidation treatment device and use method thereof |
-
2016
- 2016-09-13 CN CN201621052226.7U patent/CN206015040U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106191459A (en) * | 2016-09-13 | 2016-12-07 | 中国科学院上海高等研究院 | A kind of clean gold extraction element and method |
| CN108085497A (en) * | 2017-12-01 | 2018-05-29 | 上海铀金信息科技有限公司 | The extracting method of gold element in a kind of electronic waste |
| CN115845748A (en) * | 2022-11-25 | 2023-03-28 | 郑州大学 | Micro-nano bubble ozone coupling type ore pulp oxidation treatment device and use method thereof |
| CN115845748B (en) * | 2022-11-25 | 2023-12-26 | 郑州大学 | Micro-nano bubble ozone coupling type ore pulp oxidation treatment device and application method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106191459B (en) | A kind of cleaning gold extraction element and method | |
| CN206015040U (en) | A kind of clean gold extraction element | |
| CN208526984U (en) | The separating flotation device of micro- plastics in ambient soil and sediment sample | |
| CN105263866B (en) | Pressurize flotation gear | |
| CN106191460B (en) | A kind of no cyanogen extractant and process for extracting gold | |
| CN106830119A (en) | The magnetic absorption processing unit of oil-polluted water | |
| CN108483747A (en) | The removal of nickel and recovery system and method in a kind of nickel-containing waste water | |
| CN206751553U (en) | Oil gas field sewage disposal system | |
| CN206138836U (en) | Hybrid processing device that combined material system filtration membrane used | |
| CN107935088A (en) | A kind of high tower dissolved gas floatator | |
| CN209210893U (en) | A kind of device extracting noble metal from dead catalyst | |
| CN101195075A (en) | Permanent magnetism filtering and separating method for oil-water and device thereof | |
| CN208883955U (en) | A kind of Extraction of rare eart system of lamp rare-earth trichromatic fluorescent powder waste water | |
| CN113814062B (en) | Separation device and method for forest soil micro-plastic | |
| CN215560548U (en) | Device for leaching mineral substances | |
| CN109207732A (en) | A kind of Extraction of rare eart system and method for lamp rare-earth trichromatic fluorescent powder waste water | |
| CN206970269U (en) | A kind of multi-stage sewage rotation sink device and paper plant's sewage treatment system | |
| CN207998468U (en) | A kind of high tower dissolved gas floatator | |
| CN202880966U (en) | Environment-friendly drainer | |
| CN207567071U (en) | A kind of organic matter separating and filtering device applied to sewage disposal | |
| CN212713036U (en) | Circulating water oil-water separation device | |
| CN206762760U (en) | Sewage purification treatment equipment | |
| CN206720914U (en) | A kind of sewage-treatment plant | |
| CN206879643U (en) | A kind of arbor afforestation ecological intelligent water-saving irrigation system | |
| CN206384881U (en) | A kind of sludge condensation type air-floating apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190703 Address after: Room 207, 668 Xinqiao Highway, Songjiang District, Shanghai, 201600 Patentee after: Hejing (Shanghai) New Energy Technology Co., Ltd. Address before: 201210 No. 99, Hai Ke Road, Pudong New Area, Pudong New Area, Shanghai. Patentee before: Shanghai Advanced Research Institute, Chinese Academy of Sciences |