CN1046354A - Noble metal reclaims - Google Patents
Noble metal reclaims Download PDFInfo
- Publication number
- CN1046354A CN1046354A CN89102291A CN89102291A CN1046354A CN 1046354 A CN1046354 A CN 1046354A CN 89102291 A CN89102291 A CN 89102291A CN 89102291 A CN89102291 A CN 89102291A CN 1046354 A CN1046354 A CN 1046354A
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- China
- Prior art keywords
- adsorption tank
- vat liquor
- ore pulp
- conduit
- adsorption
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- 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.)
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D15/00—Separating processes involving the treatment of liquids with solid sorbents; Apparatus therefor
- B01D15/02—Separating processes involving the treatment of liquids with solid sorbents; Apparatus therefor with moving adsorbents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2215/00—Separating processes involving the treatment of liquids with adsorbents
- B01D2215/02—Separating processes involving the treatment of liquids with adsorbents with moving adsorbents
- B01D2215/021—Physically moving or fluidising the adsorbent beads or particles or slurry, excluding the movement of the entire columns
Abstract
Utilize the absorption of ore pulp carbon or resin-in-pulp from ore pulp or vat liquor, to reclaim the equipment and the technology of noble metal, comprising many adsorption tanks.Each pond comprises that a container that entrance and exit arranged, one are arranged on forces the liquid that enters container by inlet by every screen device and from exporting effusive whipping appts every screen device and one between the entrance and exit.This equipment comprises a conduit that selectively ore pulp or vat liquor is transported to each pond.Can stop to selected pond transfer ore pulp or vat liquor so that from this pond, remove carbon or the resin that is filled metal.Same conduit also makes lean ore slurry or poor vat liquor get back to another pond from each pond.
Description
The present invention relates to utilize the method for ore pulp carbon or resin-in-pulp absorption from ore pulp or vat liquor, to reclaim the technology and the equipment of noble metal.
Reclaim in the equipment of noble metal of picture gold in the existing method of utilizing the absorption of ore pulp carbon or resin-in-pulp, being typically is adjacent to each other many adsorption tanks places and staggered in vertical direction, makes each groove be lower than previous groove.Each adsorption tank comprises thin carbon granules, and metallic ore pulp or vat liquor are transmitted by gravity, to minimum adsorption tank, passes through each adsorption tank from the highest adsorption tank continuously.In each adsorption tank, metal is attracted on carbon granules or the resin particle, and poorer then ore pulp or vat liquor are sent to next adsorption tank, repeats this process in next adsorption tank again.Disrupter in each adsorption tank prevents that carbon granules or resin particle from passing its corresponding adsorption tank.
Behind carbon granules in each adsorption tank or resin particle absorption metal, ordinary method need be with a part of carbon or contrary flow of slurry of resin or the upward transmission of the vat liquor flow direction.Usually adopt penumatic elevator or pump to realize this transmission.This method bothers, and causes efficient low because carbon or resin are short-circuited.In addition, it also is inconvenient in operation, and the viewpoint of slave unit sees that it is also high to build each adsorption tank cost at various height.
According to the present invention, the equipment that utilizes the method for ore pulp carbon or resin-in-pulp absorption to reclaim noble metal from ore pulp or vat liquor comprises many adsorption tanks, each adsorption tank comprises a container with entrance and exit, one be configured between the entrance and exit every screen device and whipping appts, this whipping appts forces through inlet and flows into the liquid of container by being flowed out by outlet every screen device, this equipment also comprises the device of carrying metallic ore pulp or vat liquor and impels lean ore slurry or poor vat liquor to flow to the device of another adsorption tank from each adsorption tank (except last adsorption tank), e Foerderanlage can be transported to each adsorption tank selectively with metallic ore pulp or vat liquor, make to stop, so that remove carbon or the resin that has adsorbed metal in this adsorption tank to chosen adsorption tank transfer ore pulp or vat liquor.
Transfer ore pulp or vat liquor can comprise a conduit that connects each adsorption tank inlet to the device of each adsorption tank, and this conduit is suitable for sending into ore pulp or vat liquor from one or several opening for feeds.
Impel lean ore slurry or poor vat liquor can comprise a conduit that connects each adsorption tank outlet from the device that each adsorption tank flows to another adsorption tank, this conduit has one or several relief outlets, and lean ore slurry or poor vat liquor can flow into wastewater disposal basin by these relief outlets.
In most preferred embodiment, the conduit that connects each adsorption tank inlet is a kind of identical conduit with the conduit that is connected each adsorption tank outlet.
In addition, according to the present invention, the technology of utilizing the method for ore pulp carbon or resin-in-pulp absorption to reclaim precious metal from ore pulp or vat liquor comprises makes the ore pulp that contains metal or vat liquor pass through each adsorption tank in many adsorption tanks continuously, each adsorption tank comprises the carbon granules or the resin particle of absorption metal from ore pulp or vat liquor, ore pulp or vat liquor are circulated in each adsorption tank, thereby it is mixed with carbon granules or resin particle, make it pass through to flow out adsorption tank subsequently, should be used to prevent that carbon granules or resin particle broke away from adsorption tank every screen device every screen device; The technology of this recovery noble metal also includes each adsorption tank and other adsorption tank is separated, thereby can remove carbon granules or the resin particle that adsorbs metal from this adsorption tank, and does not interrupt the removal process of metal this moment.
Ore pulp or vat liquor preferably flow to next adsorption tank by a common conduit that connects adsorption tank from an adsorption tank.
Fig. 1 is the vertical view that reclaims the equipment of gold according to of the present invention.
Fig. 2 is the sectional elevation of Fig. 1 at the X-X line.
Fig. 3 is the part sectional elevation of an adsorption tank.
Fig. 4 and Fig. 5 are graphic representations, show the processing property of demonstration equipment of the present invention.
Equipment shown in Fig. 1 comprises two rows adsorption tank 10 arranged side by side, 6 of every rows.The shape of intermediate configurations is that the conduit of annular water tank 12 interconnects each adsorption tank 10.Each adsorption tank 10 has the inlet 14 and the outlet 16 of leading to tank 12.Knockdown metal gate 72 is at each inlet 14 and export among the tank 12 between 16, and when gate is located in the tank, it has isolated the entrance and exit of each adsorption tank effectively.Transfer lime 18 is carried auriferous ore pulp or vat liquor by many valves 20 to tank 12.Each valve 20 be configured in tank 12 above, near corresponding inlet 14.Many discharge outlets 22 are arranged between the entrance and exit of adjacent adsorption tank 10 in tank 12, and it leads to the waste liquid conduit 24 of intermediate configurations.Waste liquid conduit 24 leads to container 26, and the waste liquid in the container can utilize a pair of pump 28 and 30 to be transported in the waste liquid pool.
Have the discharge outlet 32(that controlled by valve 34 in the bottom of each adsorption tank 10 and see Fig. 2).Discharge outlet 32 is connected on the common discharge conduit 38 and 40 that leads to emptying pump 42 by pipeline 36.
The structure of single adsorption tank 10 is shown more clearly in Fig. 3.Adsorption tank 10 comprises the container 44 that has square tangent plane from orthographic plan, but container has rounded bottom.Inlet 14 and outlet 16 are connected to and are installed in intermediary on screen device.Electric notor 46 be installed in container 44 above, it drives vertical rotating shaft 48, in the end of this turning axle agitator 50 is housed.Hollow every screen device 52 be configured in turning axle around, its outside surface is columniform, is fine ga(u)ge screen, sieve aperture has a certain size in case blocking grain 54 passes every screen device.Agitator 56 is installed on the turning axle 48 and has vertically extending stirring parts 58, and when motor 46 rotated, this stirring parts was near the apparent motion every screen device 52, and near in the liquid of screen device, producing eddy current.Other agitator blades 60 is installed on the turning axle 48, in rotating shaft with between the internal surface of screen device 52.Container 44 is installed on the angle bar post 68 that is fixed on the concrete pedestal 70.
In when operation, ore pulp or vat liquor from tank 12 by inlet valve 62 and along the direction of arrow by 14 inside that enter adsorption tank 10 that enter the mouth.Impeller 50 circulates liquid in adsorption tank, agitator blades 60 then produces pressure in container 44.Ore pulp or vat liquor flow through every screen device 52 and enter at the annular space above screen device 52 64, and the direction along arrow flows out outlet 16 then.Ore pulp or vat liquor are got back in the tank 12 by outlet valve 66.For clarity sake, inlet 14 and outlet 16 in Fig. 3 are represented as each other in 180 ° of angles, so seem as if two tanks that separate 12.Should be known in that this angle can change on request.In prototype equipment, as shown in Figure 1, inlet 14 and outlet 16 form the angle of about 20 ° or 30 ° each other, and are connected on the public tank.
In use, the carbon granules of predetermined amount is housed in the adsorption tank, by selected valve 20 auriferous ore pulp or vat liquor is incorporated in the tank 12 then.For example can breakdown and the adjacent valve 20 of adsorption tank 10 of Fig. 1 upper left side.Ore pulp or vat liquor will flow into first adsorption tank 10 by its inlet 14, and the rotation of agitator blades 60 will produce a pressure in adsorption tank, force ore pulp or vat liquor to pass adsorption tank from exporting 16 outflows and turning back to the tank 12.Poorer a little ore pulp or vat liquor will flow into the inlet 14 of next adsorption tank 10 then, then pass remaining adsorption tank, and this moment, ore pulp or vat liquor also became more and more poorer.
Clearly, the carbon granules in first adsorption tank will be at first saturated by gold.Can close its entrance and exit valve 62 and 66 this moment, and this adsorption tank is separated.Corresponding valve 20 will be closed, and will be near valve 20 breakdowns of next adsorption tank inlet.Vent valves 22 breakdowns corresponding to the adsorption tank that separates that will be in tank 12 make the metal-free ore pulp in absorption series connection end leave recovery train by conduit 24.
Therefore, saturated adsorption tank will with remaining adsorption tank separately, but equipment can continue to run well, and utilizes that corresponding valve 20 can with auriferous ore pulp or vat liquor flows in the adsorption tank downstream side that separates and the adsorption tank that is adjacent inlet.Can also saturated carbon be extracted out so that further handle by the valve 34 of breakdown on the bottom of the adsorption tank that separates now.Replace carbon in this adsorption tank with regenerative carbon, and this adsorption tank can be recovered running and not interrupt the removal process of gold.Again the adsorption tank that connects will become last adsorption tank now in the adsorption tank of serial connection.
If in order to keep in repair or other reason needs any one specific adsorption tank of bypass, as long as just then close the inlet valve 62 and the outlet valve 66 of this adsorption tank and remove in the tank gate between valve 72 and can realize this point.At this moment, ore pulp or vat liquor just flow to the adsorption tank in its back from an adsorption tank being positioned at bypass adsorption tank front along tank.
It is quite compact and can be installed in these advantages on the level land that above-mentioned equipment has structure.In each adsorption tank 10, carried out isolation and pump is taken out dual-use function every screen device, so do not need to install outside pump vat liquor is not extracted into next adsorption tank from an adsorption tank, simultaneously also do not need adsorption tank is installed on the slope land, this has just reduced installation cost.
Be used for ore pulp carbon absorption recovery gold though this technology and equipment have been illustrated, should be understood that this technology and equipment also can be used to reclaim other metal, for example uranium.Can replace the absorption of ore pulp carbon with the resin-in-pulp absorbing process.Should also be appreciated that, only from ore pulp or powder slurry, reclaim metal though " ore pulp carbon ", " resin-in-pulp " these terms are thought the people,, utilize method and apparatus of the present invention also can from vat liquor, reclaim metal.
Following example relates to the processing property of demonstration equipment of the present invention.Demonstration equipment comprises two placed in-line adsorption tanks 10, and the volume of each adsorption tank is 1.8m
3This equipment is used to handle from existing golden reclaimer operation effusive by porphyrize and the gold mine ejecta handled with prussiate.
Adsorption tank is placed on same level height, utilizes the impeller in each adsorption tank to transmit ore pulp, makes it flow through recovery train.A large amount of activated carbon is suspended in the gold that dissolves from ore with absorption in each adsorption tank.
The effect at the exemplary workshop when adopting a plurality of adsorption tank in order to predict, (two adsorption tanks) recovery train that turns round exemplary makes it that dynamic data that can embody the adsorption process kinetic model is provided.Used experimental technique is to add ore pulp in activated carbon and the gold content of the solution trend over time in each adsorption tank of two adsorption tanks of operation and observation under the in stable condition condition with different flow velocity.
The flow velocity of testing is 31.5m
3/ h, 20.5m
3/ h and 13.7m
3/ h is respectively 3.4min, 5.3min and 7.9min corresponding to the residence time at adsorption tank.
As an example, test 3(13.7m
3/ h) processing condition are summarized as follows, and actual dynamic response is shown in the curve of Fig. 4.
The condition of test 3:
Flow rate of pulp: 13.7m
3/ h
Ore pulp relative density: 1.390
Solids relative density: 2.700
Solution flow rate: 10.5m
3/ h
Adsorption tank volume: 1.8m
3
The nominal residence time: 7.9min
Adsorption tank carbon amount: 100kg/m
3
The gold content of delivered solution: about 5.0-6.0g Au/m
3
With reference to Fig. 4 as can be seen, during whole test in (48h), the gold amount of carbon absorption stably is increased to the numerical value of 12.35kg Au/t and 3.57kg Au/t respectively for adsorption tank 1 and 2.Gold content value in the solution then increases with very mild speed, and this shows, gradually kinetics of adsorption is exerted an influence after the carbon ADSORPTION OF GOLD.
The mean value of input GOLD FROM PLATING SOLUTION concentration is 5.7gAu/m in during 48 hours
3, and the mean value of the GOLD FROM PLATING SOLUTION concentration of adsorption tank 1 is 0.97gAu/m
3, the mean value of the GOLD FROM PLATING SOLUTION concentration of adsorption tank 2 is 0.18gAu/m
3, if utilize these data to calculate, then be respectively 83% and 81% for adsorption tank 1 and 2 every grade the extraction yields of gold.The people who is familiar with this technology can know that these extraction yields are very high, only stops 7.9 minutes these points for ore pulp in each adsorption tank, and these extraction yields are very surprising.In " traditional " ore pulp CAM, typical extraction yield is 60-70%, and the residence time of ore pulp is 45-60min.
Will be appreciated that, in the recovery train of operate continuously, can reach a point, be considered to best, then transfer position be shifted to downstream (promptly moving on to next adsorption tank) so that in series system, set up one group of new dynamic condition in the absorption of this point carbon in each adsorption tank.Utilization is by two simple case that exemplary workshop provided that adsorption tank constituted and to suppose 35 hours be the optimal operations process cycle, then the carbon in adsorption tank 1 just will be extracted out when being adsorbed onto 9.0kg Au/t and further handle as last adsorption production, then ore pulp is transported to adsorption tank 2, carbon has the absorption of 2.1kg Au/t in this adsorption tank.
The exemplary workshop test of different in flow rate provides the data that can calculate absorption quality transmission coefficient, and these coefficients are used in the processing property that has the recovery train of many adsorption stage on a kind of simulation model with prediction.
Following table shows one and per hour handles 30m
3The performance prediction at the exemplary workshop of powder slurry (delivered solution concentration is 5.5kgAu/t, and liquid waste concentration is 0.01gAu/t).
The processed carbon aggregate carbon storage of progression residence time carbon amount carbon adsorptive capacity
(min/ level) (kg/m
3) (gAu/t) (t/ days) (t)
5 3.6 100 16 900 0.180 0.90
6 3.6 80 21 010 0.144 0.86
8 3.6 58 29 100 0.104 0.83
And the people who is familiar with this technology will find out, compares with traditional system, and above-mentioned equipment has following series of advantages:
The ⅰ ore pulp residence time is shorter, so the volume of equipment is less;
The adsorptive capacity of ⅱ carbon is higher, has therefore reduced next step and reclaim the processing cost of gold from carbon;
The total carbon storage of ⅲ flow process is lower, so the tank farm stock cost is lower;
ⅳ need not transmit carbon at inter-stage, has therefore eliminated disadvantageous back-mixing effect and has simplified mill operation.
Claims (18)
1, a kind of method of utilizing the absorption of ore pulp carbon or resin-in-pulp reclaims the equipment of noble metal from ore pulp or vat liquor, this equipment comprises many adsorption tanks, each adsorption tank comprise a container with entrance and exit, one be configured between the entrance and exit every screen device and whipping appts, this whipping appts forces the liquid that enters container by inlet to flow out by disrupter and from outlet; This equipment also comprises the device of carrying metallic ore pulp or vat liquor and impels lean ore slurry or poor vat liquor to flow to the device of another adsorption tank from each adsorption tank (except last adsorption tank), e Foerderanlage can be transported to each adsorption tank selectively with metallic ore pulp or vat liquor, make to stop, so that remove carbon or the resin that has adsorbed metal in this adsorption tank to chosen adsorption tank transfer ore pulp or vat liquor.
2, a kind of according to the described equipment of claim 1, wherein the device to each adsorption tank transfer ore pulp or vat liquor comprises a conduit that connects each adsorption tank inlet, and this conduit is suitable for sending into ore pulp or vat liquor from one or several opening for feeds.
3, a kind of according to the described equipment of claim 2, wherein each opening for feed is positioned at the place near corresponding adsorption tank inlet.
4, a kind of according to claim 2 or the described equipment of claim 3, wherein impel lean ore slurry or poor vat liquor to comprise a conduit that connects each adsorption tank outlet from the device that each adsorption tank flows to another adsorption tank, this conduit has one or several discharge outlets, and lean ore slurry or poor vat liquor can flow into waste liquid pool by these discharge outlets.
5, a kind of according to the described equipment of claim 4, wherein each discharge outlet is arranged between the outlet of the inlet of an adsorption tank and adjacent adsorption tank.
6, a kind of according to claim 4 or the described equipment of claim 5, the conduit that wherein connects each adsorption tank inlet is a same conduit with the conduit that is connected each adsorption tank outlet.
7, a kind of according to the described equipment of claim 6, wherein valve system is installed in the conduit between the entrance and exit of each adsorption tank, so that can cut off flow of slurry or vat liquor stream in the conduit selectively.
8, a kind of according to claim 6 or the described equipment of claim 7, wherein common conduit forms a loop line.
9, a kind of wherein the entrance and exit of each adsorption tank is equipped with corresponding cutting-off valve according to the described equipment of any one claim in the claim 1 to 8, makes that any one adsorption tank in the equipment can be separated with other adsorption tank.
10, a kind of according to the described equipment of claim 9, wherein each adsorption tank has a discharge outlet, this discharge outlet can be controlled by valve, when separating with other adsorption tank in the equipment with adsorption tank of box lunch, carbon or the resin that has adsorbed metal can be emitted from this pond.
11; a kind of method of utilizing the absorption of ore pulp carbon or resin-in-pulp reclaims the technology of noble metal from ore pulp or vat liquor; this technology comprises makes metallic ore pulp or vat liquor continuously by each adsorption tank in many adsorption tanks; each adsorption tank comprises the carbon granules or the resin particle of absorption metal from ore pulp or vat liquor; ore pulp or vat liquor are circulated in each adsorption tank; so that it is mixed with carbon granules or resin particle; make it pass through one then every screen device outflow adsorption tank; should prevent that carbon granules or resin particle broke away from adsorption tank every screen device; the technology of this recovery noble metal also includes each adsorption tank and other adsorption tank is separated; thereby can from inhale adsorption tank, remove carbon granules or the resin particle that adsorbs metal, and not interrupt the removal process of metal this moment.
12, a kind of according to the described technology of claim 11, wherein ore pulp or vat liquor flow to next adsorption tank by a common conduit that connects each adsorption tank from an adsorption tank.
13, a kind of according to the described technology of claim 12, wherein pending metallic ore pulp or vat liquor can be transported to a selected adsorption tank from an opening for feed the opening for feed of many close inlets of adsorption tank separately.
14, a kind of according to claim 12 or the described technology of claim 13, wherein lean ore slurry or poor vat liquor are discharged from conduit by a relief outlet in many relief outlets, and each relief outlet is arranged between the outlet of the inlet of the adsorption tank adsorption tank adjacent with it.
15, a kind of according to claim 11 described technology of any one claim to the claim 14; wherein at first the adsorption tank by metallic ore pulp or vat liquor separated with other adsorption tank after the time that requires; so that remove the carbon granules or the resin particle that adsorb metal; it is further processed; fresh carbon granules or resin particle replace carbon granules or the resin particle that is removed, and this adsorption tank can reconnect on other adsorption tank and process is not interrupted.
16, a kind of according to the described technology of claim 15, wherein pending metallic ore pulp or vat liquor can be transported to the downstream of the adsorption tank that separates and be adjacent in the adsorption tank that connects, when the adsorption tank that separates reclosed, this adsorption tank became last adsorption tank of accepting ore pulp or vat liquor.
17, a kind of equipment that from ore pulp or vat liquor, reclaims noble metal, it basically as in the literary composition with reference to the illustrated equipment of accompanying drawing.
18, a kind of technology that from ore pulp or vat liquor, reclaims noble metal, it basically as in the literary composition with reference to the illustrated technology of accompanying drawing.
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ZA878497A ZA878497B (en) | 1987-11-12 | 1987-11-12 | Metal recovery |
| CA000591713A CA1340238C (en) | 1987-11-12 | 1989-02-22 | Adsorption recovery of metal values from a pulp or leach solution |
| ES8900706A ES2012668A6 (en) | 1987-11-12 | 1989-02-27 | Process and installation for recovering metallic elements |
| GB8905729A GB2229171B (en) | 1987-11-12 | 1989-03-13 | Metal recovery |
| SU4613669A RU1838439C (en) | 1987-11-12 | 1989-03-13 | Device to extract metal from solutions or pulps by adsorption |
| BR898901212A BR8901212A (en) | 1987-11-12 | 1989-03-16 | INSTALLATION AND PROCESS FOR THE RECOVERY OF METAL VALUES FROM A PULP OR LIXIVATION SOLUTION THROUGH CARBON ABSORPTION IN PULP OR PULP RESIN |
| CN89102291A CN1030719C (en) | 1987-11-12 | 1989-04-15 | Noble metal recovery |
| PH38771A PH26484A (en) | 1987-11-12 | 1989-06-13 | Metal recovery |
Applications Claiming Priority (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ZA878497A ZA878497B (en) | 1987-11-12 | 1987-11-12 | Metal recovery |
| CA000591713A CA1340238C (en) | 1987-11-12 | 1989-02-22 | Adsorption recovery of metal values from a pulp or leach solution |
| ES8900706A ES2012668A6 (en) | 1987-11-12 | 1989-02-27 | Process and installation for recovering metallic elements |
| GB8905729A GB2229171B (en) | 1987-11-12 | 1989-03-13 | Metal recovery |
| SU4613669A RU1838439C (en) | 1987-11-12 | 1989-03-13 | Device to extract metal from solutions or pulps by adsorption |
| CN89102291A CN1030719C (en) | 1987-11-12 | 1989-04-15 | Noble metal recovery |
| PH38771A PH26484A (en) | 1987-11-12 | 1989-06-13 | Metal recovery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1046354A true CN1046354A (en) | 1990-10-24 |
| CN1030719C CN1030719C (en) | 1996-01-17 |
Family
ID=27560941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN89102291A Expired - Lifetime CN1030719C (en) | 1987-11-12 | 1989-04-15 | Noble metal recovery |
Country Status (7)
| Country | Link |
|---|---|
| CN (1) | CN1030719C (en) |
| CA (1) | CA1340238C (en) |
| ES (1) | ES2012668A6 (en) |
| GB (1) | GB2229171B (en) |
| PH (1) | PH26484A (en) |
| RU (1) | RU1838439C (en) |
| ZA (1) | ZA878497B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1043247C (en) * | 1992-03-18 | 1999-05-05 | 亨凯尔公司 | Description of related art |
| CN105339748A (en) * | 2013-03-15 | 2016-02-17 | 维卓尼特服务公司 | Coal and mineral slurry drying method and system |
| CN108359793A (en) * | 2018-03-16 | 2018-08-03 | 云锡文山锌铟冶炼有限公司 | reducing leaching device |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9004284B2 (en) | 2009-10-01 | 2015-04-14 | Vitrinite Services, Llc | Mineral slurry drying method and system |
| CN105386080B (en) * | 2015-12-21 | 2017-10-27 | 云南驰宏锌锗股份有限公司 | A kind of zinc hydrometallurgy purification additive pretreatment unit with washing function |
| CN113350830B (en) * | 2021-05-26 | 2022-09-20 | 中国恩菲工程技术有限公司 | Resin pulp adsorption system |
-
1987
- 1987-11-12 ZA ZA878497A patent/ZA878497B/en unknown
-
1989
- 1989-02-22 CA CA000591713A patent/CA1340238C/en not_active Expired - Fee Related
- 1989-02-27 ES ES8900706A patent/ES2012668A6/en not_active Expired - Fee Related
- 1989-03-13 RU SU4613669A patent/RU1838439C/en active
- 1989-03-13 GB GB8905729A patent/GB2229171B/en not_active Expired - Lifetime
- 1989-04-15 CN CN89102291A patent/CN1030719C/en not_active Expired - Lifetime
- 1989-06-13 PH PH38771A patent/PH26484A/en unknown
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1043247C (en) * | 1992-03-18 | 1999-05-05 | 亨凯尔公司 | Description of related art |
| CN105339748A (en) * | 2013-03-15 | 2016-02-17 | 维卓尼特服务公司 | Coal and mineral slurry drying method and system |
| CN108359793A (en) * | 2018-03-16 | 2018-08-03 | 云锡文山锌铟冶炼有限公司 | reducing leaching device |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2229171B (en) | 1992-07-29 |
| GB2229171A (en) | 1990-09-19 |
| PH26484A (en) | 1992-07-27 |
| ZA878497B (en) | 1989-07-26 |
| GB8905729D0 (en) | 1989-04-26 |
| CN1030719C (en) | 1996-01-17 |
| ES2012668A6 (en) | 1990-04-01 |
| CA1340238C (en) | 1998-12-15 |
| RU1838439C (en) | 1993-08-30 |
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|---|---|---|---|
| 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 | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
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