CN106517198A - Pretreatment method of activated carbon for gold production - Google Patents
Pretreatment method of activated carbon for gold production Download PDFInfo
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- CN106517198A CN106517198A CN201611059318.2A CN201611059318A CN106517198A CN 106517198 A CN106517198 A CN 106517198A CN 201611059318 A CN201611059318 A CN 201611059318A CN 106517198 A CN106517198 A CN 106517198A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/3021—Milling, crushing or grinding
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
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- Organic Chemistry (AREA)
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- Carbon And Carbon Compounds (AREA)
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Abstract
The invention relates to a pretreatment method of activated carbon for gold production, belonging to the field of mineral processing. The method comprises the following steps: preparing ore slurry with the corresponding fineness and mass concentration to the industrial production from ores treated by a carbon-slurry gold extraction process, maintaining activated carbon of which the particle size is greater than 1.0mm and less than 3.35mm, mixing the activated carbon and ore slurry (the mass ratio of the activated carbon to water in the ore slurry is 1:3-1:5), carrying out mechanical stirring and sanding pretreatment for 1-3 hours, screening out fine-particle carbon with the particle size of less than 1.0mm to maintain the activated carbon with the particle size of greater than 1.0mm, washing, filtering out water, and drying. The activated carbon obtained by the activated carbon pretreatment method disclosed by the invention has the advantages of smooth surface and favorable wear resistance, and has lower wear rate of carbon when being used in the carbon-slurry gold extraction process.
Description
Technical field
The invention belongs to technical field of mineral processing, is related to a kind of preprocess method of golden production activated carbon.
Background technology
Activated carbon is the important production material of gold extraction by CIP process in gold industry production, and anti-wear performance is to select activity
An important indicator being considered as during charcoal, is related to recovery situation and the production cost of gold.
At present, the activated carbon of buying is directly put into production use by domestic majority carbon-in-pulp process gold manufacturing enterprises, activated carbon
In light components it is easy to wear, the burgy activity for being formed of wearing and tearing is high, the rate of adsorption is fast, but burgy cannot efficient recovery, so as to make
Into the loss of gold.Which is entered by medium of water in agitator tank by part carbon-in-pulp process gold manufacturing enterprises using before activated carbon
The polishing pretreatment of row mechanical agitation, reduces the loss of activated carbon during follow-up recovering gold by CIP process to a certain extent, but
It is unreasonable due to pretreated process control, cause Activated Carbon Pretreatment effect undesirable, activated carbon loss rate is seriously higher,
Considerably increase the production cost of enterprise.
The content of the invention
The present invention provides a kind of preprocess method of golden production activated carbon, to solve the activated carbon that presently, there are loss
Rate is seriously higher, increased the problem of enterprise's production capacity.
The present invention is adopted the technical scheme that：Comprise the following steps：
(1), using the Ore handled by carbon slurry therapy extracting gold method, fineness corresponding with commercial production and mass concentration are prepared
Ore pulp, -74 μm of Ore fineness accounts for 70%～90%, mass concentration 30%～50%；
(2) activated carbon is carried out into dry screen with the sieve that sieve aperture is respectively 3.35mm and 1.0mm, bulky grain therein is screened out
Charcoal and particulate charcoal, remain larger than 1.0mm and the activated carbon less than 3.35mm；
(3), the ore pulp for (1) preparing the activated carbon after step (2) process and step is with water quality ratio in activated carbon and ore pulp
For 1:3～1:5 ratio mixing, and in dischargeable capacity 0.05m3Agitator tank in mechanical agitation polishing pretreatment 1～3 hour,
Agitator tank specifications parameter：Cell body height 500mm, cell body diameter 450mm, four leaf paddle impellers, impeller diameter 180mm, impeller are most
Big rotating speed 580r/min；
(4), after, step (3) process terminates, activated carbon is isolated from ore pulp with the sieve that sieve aperture is 1.0mm, and is screened out
Particulate charcoal less than 1.0mm, remains larger than the activated carbon of 1.0mm；
(5), the activated carbon that step (4) is obtained fully is washed with clear water, moisture, dry for standby is then filtered.
In gold industry production, the pretreatment of activated carbon is a vital link, by rational pretreatment side
Method, polishes off wedge angle, seamed edge and the open texture of activated carbon, can reduce charcoal wear rate, less using pretreated activated carbon
The loss rate of gold.
The method have the advantages that：Using the ore pulp consistent with Ore fineness and mass concentration in the production of carbon slurry therapy extracting gold method
As medium, mechanical agitation pretreatment is carried out to activated carbon in the agitator tank of certain specification parameter, effectively polished off work
In the wedge angle of property charcoal, seamed edge and open texture, and preprocessing process, the loss rate of activated carbon is low.With activated carbon in agitator tank with
Water carries out churned mechanically preprocess method for medium and compares, the activity obtained by Activated Carbon Pretreatment method disclosed by the invention
Carbon surface is smooth, and anti-wear performance is good, and when used in gold extraction by CIP process, the wear rate of charcoal is lower.
Specific embodiment
Embodiment 1
Comprise the following steps：
(1), using the Ore handled by carbon slurry therapy extracting gold method, fineness corresponding with commercial production and mass concentration are prepared
Ore pulp, -74 μm of Ore fineness accounts for 90%, mass concentration 50%；
(2) activated carbon is carried out into dry screen with the sieve that sieve aperture is respectively 3.35mm and 1.0mm, bulky grain charcoal therein is screened out
With particulate charcoal, 1.0mm and the activated carbon less than 3.35mm is remained larger than；
(3) the ore pulp that (1) activated carbon and step after (2), processed step prepared with water quality ratio in activated carbon and ore pulp is
1:5 ratio mixing, and in dischargeable capacity 0.05m3Agitator tank in mechanical agitation polishing pretreatment 3 hours, agitator tank specification
Parameter：Cell body height 500mm, cell body diameter 450mm, four leaf paddle impellers, impeller diameter 180mm, impeller maximum (top) speed 580r/
min；
(4), step is isolated activated carbon from ore pulp with the sieve that sieve aperture is 1.0mm, and is screened out little after (3) process terminates
In the particulate charcoal of 1.0mm, the activated carbon of 1.0mm is remained larger than；
(5), the activated carbon that (4) step obtains fully is washed with clear water, moisture, dry for standby is then filtered.
Embodiment 2
Comprise the following steps：
(1), using the Ore handled by carbon slurry therapy extracting gold method, fineness corresponding with commercial production and mass concentration are prepared
Ore pulp, -74 μm of Ore fineness accounts for 80%, mass concentration 40%；
(2) activated carbon is carried out into dry screen with the sieve that sieve aperture is respectively 3.35mm and 1.0mm, bulky grain charcoal therein is screened out
With particulate charcoal, 1.0mm and the activated carbon less than 3.35mm is remained larger than；
(3) the ore pulp that (1) activated carbon and step after (2), processed step prepared with water quality ratio in activated carbon and ore pulp is
1:4 ratio mixing, and in dischargeable capacity 0.05m3Agitator tank in mechanical agitation polishing pretreatment 2 hours, agitator tank specification
Parameter：Cell body height 500mm, cell body diameter 450mm, four leaf paddle impellers, impeller diameter 180mm, impeller maximum (top) speed 580r/
min；
(4), step is isolated activated carbon from ore pulp with the sieve that sieve aperture is 1.0mm, and is screened out little after (3) process terminates
In the particulate charcoal of 1.0mm, the activated carbon of 1.0mm is remained larger than；
(5), the activated carbon that (4) step obtains fully is washed with clear water, moisture, dry for standby is then filtered.
Embodiment 3
Comprise the following steps：
(1), using the Ore handled by carbon slurry therapy extracting gold method, fineness corresponding with commercial production and mass concentration are prepared
Ore pulp, -74 μm of Ore fineness accounts for 70%, mass concentration 30%；
(2) activated carbon is carried out into dry screen with the sieve that sieve aperture is respectively 3.35mm and 1.0mm, bulky grain charcoal therein is screened out
With particulate charcoal, 1.0mm and the activated carbon less than 3.35mm is remained larger than；
(3) the ore pulp that (1) activated carbon and step after (2), processed step prepared with water quality ratio in activated carbon and ore pulp is
1:3 ratio mixing, and in dischargeable capacity 0.05m3Agitator tank in mechanical agitation polishing pretreatment 1 hour, agitator tank specification
Parameter：Cell body height 500mm, cell body diameter 450mm, four leaf paddle impellers, impeller diameter 180mm, impeller maximum (top) speed 580r/
min；
(4), step is isolated activated carbon from ore pulp with the sieve that sieve aperture is 1.0mm, and is screened out little after (3) process terminates
In the particulate charcoal of 1.0mm, the activated carbon of 1.0mm is remained larger than；
(5), the activated carbon that (4) step obtains fully is washed with clear water, moisture, dry for standby is then filtered.
It is following by contrast experiment further illustrating the effect of the present invention.
Experimental example 1
(1) using the Ore handled by carbon slurry therapy extracting gold method, fineness corresponding with commercial production and mass concentration are prepared
Ore pulp, -74 μm of Ore fineness accounts for 90%, mass concentration 50%；
(2) activated carbon is carried out into dry screen with the sieve that sieve aperture is respectively 3.35mm and 1.0mm, screens out bulky grain charcoal therein
With particulate charcoal, 1.0mm and the activated carbon less than 3.35mm is remained larger than；
Be shown in Table 1 using the granularity of activated carbon.
The granularity of activated carbon used by table 1
| Grade (mm) | +3.35 | -3.35+1.0 | -1.0 |
| Weight/mass percentage composition (%) | 0.16 | 99.49 | 0.35 |
(3) the Activated Carbon Pretreatment condition with water as medium：Mass ratio with activated carbon and water is as 1:5 ratio mixing,
And in dischargeable capacity 0.05m3Agitator tank in mechanical agitation polishing pretreatment 3 hours, agitator tank specifications parameter：Cell body height
500mm, cell body diameter 450mm, four leaf paddle impellers, impeller diameter 180mm, impeller maximum (top) speed 580r/min；
(4), after, step (3) process terminates, activated carbon is isolated from ore pulp with the sieve that sieve aperture is 1.0mm, and is screened out
Particulate charcoal less than 1.0mm, remains larger than the activated carbon of 1.0mm；
(5), the activated carbon that step (4) is obtained fully is washed with clear water, moisture, dry for standby is then filtered.
The Activated Carbon Pretreatment that this experimental example 1 is obtained with embodiment 1 the results are shown in Table 2.
The Activated Carbon Pretreatment result of 2 experimental example 1 of table and embodiment 1
| Preprocess method | Embodiment 1 adopts method | Experimental example 1 adopts method |
| Activated carbon loss amount (kg) | 0.346 | 0.376 |
| Activated carbon loss rate (%) | 4.33 | 4.70 |
Wear test condition of the activated carbon in gold extraction by CIP process after pretreatment：- 74 μm of Ore fineness accounts for 90%, ore deposit
Slurry mass concentration 50%, pulp volume 40L, quality of activated carbon 800g (blowing-in burden(ing) density 20g/LOre pulp), wheel speed 265r/min,
Wearing- in period 24h.After pretreatment, wear test of the activated carbon in gold extraction by CIP process the results are shown in Table 3.
Wear test result of the activated carbon in gold extraction by CIP process after 3 pretreatment of table
| Preprocess method | Using 1 method of embodiment | Using 1 method of experimental example |
| Activated carbon wear extent (g) | 13.44 | 16.24 |
| Activated carbon wear rate (%) | 1.68 | 2.03 |
Experimental example 2
(1), using the Ore handled by carbon slurry therapy extracting gold method, fineness corresponding with commercial production and mass concentration are prepared
Ore pulp, -74 μm of Ore fineness accounts for 80%, mass concentration 40%；
(2) activated carbon is carried out into dry screen with the sieve that sieve aperture is respectively 3.35mm and 1.0mm, bulky grain therein is screened out
Charcoal and particulate charcoal, remain larger than 1.0mm and the activated carbon less than 3.35mm；
Be shown in Table 4 using the granularity of activated carbon.
The granularity of activated carbon used by table 4
| Grade (mm) | +3.35 | -3.35+1.0 | -1.0 |
| Weight/mass percentage composition (%) | 0.78 | 99.49 | 0.12 |
(3), the Activated Carbon Pretreatment condition with water as medium：Mass ratio with activated carbon and water is as 1:4 ratio mixing,
And in dischargeable capacity 0.05m3Agitator tank in mechanical agitation polishing pretreatment 2 hours, agitator tank specifications parameter：Cell body height
500mm, cell body diameter 450mm, four leaf paddle impellers, impeller diameter 180mm, impeller maximum (top) speed 580r/min；
(4), after, step (3) process terminates, activated carbon is isolated from ore pulp with the sieve that sieve aperture is 1.0mm, and is screened out
Particulate charcoal less than 1.0mm, remains larger than the activated carbon of 1.0mm；
(5), the activated carbon that step (4) is obtained fully is washed with clear water, moisture, dry for standby is then filtered.
The Activated Carbon Pretreatment that this experimental example 2 is obtained with embodiment 2 the results are shown in Table 5.
The Activated Carbon Pretreatment result of 5 experimental example 2 of table and embodiment 2
| Preprocess method | Using 2 method of experimental example | Using 2 method of embodiment |
| Activated carbon loss amount (kg) | 0.262 | 0.287 |
| Activated carbon loss rate (%) | 3.28 | 3.59 |
Wear test condition of the activated carbon in gold extraction by CIP process after pretreatment：- 74 μm of Ore fineness accounts for 80%, ore deposit
Slurry mass concentration 40%, pulp volume 40L, quality of activated carbon 800g (blowing-in burden(ing) density 20g/LOre pulp), wheel speed 265r/min,
Wearing- in period 24h.After pretreatment, wear test of the activated carbon in gold extraction by CIP process the results are shown in Table 6.
Wear test result of the activated carbon in gold extraction by CIP process after 6 pretreatment of table
| Preprocess method | Using 1 method of embodiment | Using 2 method of embodiment |
| Activated carbon wear extent (g) | 13.68 | 28.88 |
| Activated carbon wear rate (%) | 2.96 | 3.61 |
In Activated Carbon Pretreatment method disclosed by the invention, the loss rate of activated carbon is low；The activated carbon anti-wear performance for being obtained
Good, when used in gold extraction by CIP process, the wear rate of charcoal is lower.
Claims (1)
1. a kind of preprocess method of golden production activated carbon, it is characterised in that comprise the following steps：
(1), using the Ore handled by carbon slurry therapy extracting gold method, prepare the ore deposit of fineness corresponding with commercial production and mass concentration
Slurry, -74 μm of Ore fineness account for 70%～90%, mass concentration 30%～50%；
(2), by activated carbon with sieve aperture be respectively 3.35mm and 1.0mm sieve carry out dry screen, screen out bulky grain charcoal therein and
Particulate charcoal, remains larger than 1.0mm and the activated carbon less than 3.35mm；
(3), the ore pulp for (1) preparing the activated carbon after step (2) process and step is with water quality ratio in activated carbon and ore pulp as 1:
3～1:5 ratio mixing, and in dischargeable capacity 0.05m3Agitator tank in mechanical agitation polishing pretreatment 1～3 hour, stirring
Groove specifications parameter：Cell body height 500mm, cell body diameter 450mm, four leaf paddle impellers, impeller diameter 180mm, impeller are maximum to be turned
Fast 580r/min；
(4) after, step (3) process terminates, activated carbon is isolated from ore pulp with the sieve that sieve aperture is 1.0mm, and screen out and be less than
The particulate charcoal of 1.0mm, remains larger than the activated carbon of 1.0mm；
(5), the activated carbon that step (4) is obtained fully is washed with clear water, moisture, dry for standby is then filtered.
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| CN201611059318.2A CN106517198B (en) | 2016-11-27 | 2016-11-27 | A kind of preprocess method of golden production activated carbon |
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| CN201611059318.2A CN106517198B (en) | 2016-11-27 | 2016-11-27 | A kind of preprocess method of golden production activated carbon |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109499625A (en) * | 2018-11-06 | 2019-03-22 | 长春黄金研究院有限公司 | A kind of efficient elution process of gold loaded resin |
| CN114149005A (en) * | 2021-12-27 | 2022-03-08 | 北方矿业有限责任公司 | Ultrasonic pretreatment method of activated carbon for gold production |
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| US20100192774A1 (en) * | 2006-10-12 | 2010-08-05 | Hirokazu Aono | Activated carbon and canister and intake air filter utilizing the same |
| CN203470095U (en) * | 2013-09-04 | 2014-03-12 | 张立军 | Activated carbon levigator for extracting gold |
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| CN205164745U (en) * | 2015-11-28 | 2016-04-20 | 长春黄金研究院 | Air agitation formula active carbon grinding device |
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2016
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| US20100192774A1 (en) * | 2006-10-12 | 2010-08-05 | Hirokazu Aono | Activated carbon and canister and intake air filter utilizing the same |
| CN203470095U (en) * | 2013-09-04 | 2014-03-12 | 张立军 | Activated carbon levigator for extracting gold |
| CN104928487A (en) * | 2015-06-06 | 2015-09-23 | 长春黄金研究院 | Processing method of powdered carbon in extraction of gold by CIP (carbon-in-pulp) process |
| CN205288136U (en) * | 2015-10-12 | 2016-06-08 | 长春黄金研究院 | Formula air current stirring active carbon grinding device gives gas at center |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109499625A (en) * | 2018-11-06 | 2019-03-22 | 长春黄金研究院有限公司 | A kind of efficient elution process of gold loaded resin |
| CN114149005A (en) * | 2021-12-27 | 2022-03-08 | 北方矿业有限责任公司 | Ultrasonic pretreatment method of activated carbon for gold production |
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| CN106517198B (en) | 2018-07-27 |
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