CN103451424B - Method for improving filtration velocity of ore dissolution liquid - Google Patents
Method for improving filtration velocity of ore dissolution liquid Download PDFInfo
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- CN103451424B CN103451424B CN201310218684.8A CN201310218684A CN103451424B CN 103451424 B CN103451424 B CN 103451424B CN 201310218684 A CN201310218684 A CN 201310218684A CN 103451424 B CN103451424 B CN 103451424B
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- Prior art keywords
- ore
- lysate
- gelatin
- filtration
- dissolution liquid
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Abstract
The invention relates to a method for treating ore pulp in the mine industry, and exactly relates to a method capable of improving the filtration velocity of gold ore dissolution liquid in a hydrometallurgical process. The method comprises the following steps: treating the ore dissolution liquid after mineral separation to ensure that the ore dissolution liquid is acidic and the silicon content of the ore dissolution liquid is 2-5g/L; adding a gelatin aqueous solution into the ore dissolution liquid, wherein the mass ratio of gelatin to silicon is controlled to be (5:1)-(1:1); and fully stirring for several minutes, and then performing filtration. The method disclosed by the invention can simply and quickly improve the filtration velocity of the ore dissolution liquid in the mine industry, and the filtration velocity of a treated solution can reach 0.5-2.5 m<3>m<-2>h<-1>.
Description
Technical field
The present invention relates to a kind of ore pulp treatment process of mine industry, the present invention relates to a kind of method that can improve in hydrometallurgical processes the filtration velocity improving metallic ore lysate exactly.
Background technology
Hydrometallurgy is a kind of metallurgical method that metallurgy industry is conventional.In hydrometallurgical processes, all contain the silicon-dioxide of a certain amount of different shape and various silicate in ore, in the beneficiating process of wet method gold metallurgy, mineral are by after the method process such as mechanical disintegration, calcining, dissolving, mostly can produce silicon sol, thus in ore pulp, silicon sol is ubiquitous in a large number.In mine industry, often take the mode of filtering to reach the object of purified product.At this moment filtration efficiency is the key factor of filtration procedure, determines the output of purified product and follow-up Product processing to a great extent.But because silicon sol is mingled in ore pulp (i.e. ore lysate), this specific admixture can block filter cloth after having the ore lysate of silicon sol to enter filtering system in filtration procedure, filtration time is extended, even cannot filter, affect the process of ore pulp, cause the raising of production cost simultaneously.
In order to destroy silicon sol, improve filtration velocity, existing technique commonly uses two kinds of methods, and one is use 0.1% hydrofluoric acid, and silicon-dioxide and hydrofluoric acid are reacted, and generates the method for silicon tetrafluoride gas and water.The method can destroy silicon sol really, but hydrofluoric acid also can produce very strong corrosive nature to the device filtered, and the introducing of fluorion also can bring very large drawback for subsequent technique.Second method adopts the filter utilitys such as plate type pressure filter to carry out filtration treatment to solution.The method can retain silicon sol to a certain extent, but silicon sol is attached on filter cloth, need artificial unloading's sheet frame to clean filter cloth, and filtration time is long, reduces production efficiency, is difficult to meet the requirement of producing.
Summary of the invention
The invention provides one and overcome the deficiencies in the prior art and shortcoming, simply and fast improve the method for mine industry filtration velocity of ore dissolution liquid.
The method that the present invention improves filtration velocity of ore dissolution liquid comprises the following steps: the ore lysate after ore dressing is treated to acidity, and the silicone content in ore lysate is controlled at 2-5gL
-1in scope, then add the aqueous gelatin solution that mass percent is 10%-25%, make the mass ratio of gelatin and silicon control carrying out filtration treatment in 5: 1-1: 1 scopes after fully stirring, accompanying drawing 1 is shown in its technical process.
Ore lysate pH value used in the inventive method is 2-5; The temperature of ore lysate is 70-90 DEG C; Preferred parameter is: ore lysate pH value is 2-5; The optimum temps of ore lysate is 75-85 DEG C; The mass ratio of gelatin and silicon is 1:1.
Advantage of the present invention can simply and fast improve mine industry filtration velocity of ore dissolution liquid, ore is generally in beneficiating process, mineral are after the method process such as mechanical disintegration, calcining, dissolving, the actual temperature of ore lysate is higher, add gelatin under these circumstances, Controlled acidity and churning time farthest can destroy silicon sol, and the solution filtration velocity after process can reach 0.5-2.5 m
3m
-2h
-1, substantially reduce and filter the time of link and the number of times of cleaning and filtering equipment, whole processing links is not brought other foreign ions into and is facilitated subsequent handling in addition, has higher economic worth.
Accompanying drawing explanation
Accompanying drawing 1 is schema of the present invention.
Embodiment
The present invention explains orally with the following Examples.Show according to relevant test, the pH value of the ore lysate silicone content in 2-5, ore lysate is at 2-5gL
-1, ore lysate temperature at normal temperatures to higher temperature conditions, under, use method of the present invention all can improve the filtration velocity of ore lysate to some extent, and also do not need to stir for a long time in the application of reality.
Following embodiment belongs to laboratory test, and what ore lysate was got is in ore pulp at the middle and upper levels, in order to the actual procedure of simulation process ore pulp, takes omnidistance process of stirring.Based on economy and actually operating, optimal temperature and suitable churning time are limited in the present embodiment, be specifically described below by way of three different tests, the pH of ore lysate is unified is in these embodiments adjusted to 3.
embodiment 1:
Ore pulp selects the cobalt metal ore lysate in Jinchuan Non-ferrous Metals Company dressing-works, and wherein silicone content is 5gL
-1measuring 2L lysate adds in 3L beaker, continuous stirring, start heating unit simultaneously, control lysate temperature to 70-90 DEG C, in lysate, slowly add mass percent 25% gelatin (10g) realizing preparing, after gelatin all adds, stir and within 30 minutes, stop stirring, through calculating average filtration rate is 2.5m
3m
-2h
-1.The major metal cobalt rate of recovery is greater than 99%.Under identical experiment condition, if do not add gelatin, average filtration rate < 0.01 m
3m
-2h
-1, and after filter 23 0min, filtration cannot be carried out.
Ore pulp selects the metallic nickel ore lysate in Jinchuan Non-ferrous Metals Company dressing-works, and wherein silicone content is 5gL
-1measuring 2L lysate adds in 3L beaker, continuous stirring, start heating unit simultaneously, control lysate temperature to 75-85 DEG C, slowly add in lysate mass percent 10% gelatin (10g) that realizes preparing its, after gelatin all adds, stir and within 40 minutes, stop stirring, through calculating average filtration rate is 2.3m
3m
-2h
-1.Major metal nickel recovery is greater than 99%.Under identical experiment condition, if do not add gelatin, average filtration rate < 0.01 m
3m
-2h
-1, and after filter 23 0min, filtration cannot be carried out.
Ore pulp selects the metallic copper ore lysate in Jinchuan Non-ferrous Metals Company dressing-works, and wherein silicone content is 5gL
-1.Measuring 2L lysate adds in 3L beaker, continuous stirring, start heating unit simultaneously, control lysate temperature to 75-85 DEG C, mass percent 20% gelatin (10g) realizing preparing slowly is added in lysate, after gelatin all adds, stir and within 20 minutes, stop stirring, through calculating average filtration rate is 2.4m
3m
-2h
-1.Major metal copper recovery is greater than 99%.Under identical experiment condition, if do not add gelatin, average filtration rate < 0.01 m
3m
-2h
-1, and after filter 23 0min, filtration cannot be carried out.
embodiment 2:
in order to further illustrate this test, expansion examination equipment having done scale-up, the above-mentioned three groups of tests of concrete contrast, having ensured unification and the continuity of ore pulp and workshop section, gelatin unification select mass percent be 15% obtain solution.
20L cobalt metal ore lysate is added in 30L reactor, starts and stir, start heating unit simultaneously, control lysate temperature to 75-85 DEG C, regulate pH to be 5, open peristaltic pump, slowly add the good gelatin of configured in advance to lysate, after egg gelatin all adds, stir and within 25 minutes, stop to stir.Recording average filtration rate is 0.8m
3m
-2h
-1.The major metal cobalt rate of recovery is greater than 99%.Under identical experiment condition, if do not add gelatin, average filtration rate < 0.01 m
3m
-2h
-1, and after filtering 15min, filtration cannot be carried out.
20L metallic nickel ore lysate is added in 30L reactor, starts and stir, start heating unit simultaneously, control lysate temperature to 70-80 DEG C, regulate pH to be 4, open peristaltic pump, slowly add the gelatin prepared in advance to lysate, after egg gelatin all adds, stir and within 40 minutes, stop to stir.Recording average filtration rate is 1.2m
3m
-2h
-1.Major metal nickel recovery is greater than 99%.Under identical experiment condition, if do not add gelatin, average filtration rate < 0.01 m
3m
-2h
-1, and after filtering 15min, filtration cannot be carried out.
20L metallic copper ore lysate is added in 30L reactor, starts and stir, start heating unit simultaneously, control lysate temperature to 72-79 DEG C, regulate pH to be 4.5, open peristaltic pump, slowly add the gelatin prepared in advance to lysate, after gelatin all adds, stir and within 38 minutes, stop to stir.Recording average filtration rate is 0.9m
3m
-2h
-1.Major metal copper recovery is greater than 99%.Under identical experiment condition, if do not add gelatin, average filtration rate < 0.01 m
3m
-2h
-1, and after filtering 15min, filtration cannot be carried out.
embodiment 3:
expansion examination equipment is directly tested after off-test on frock streamline, thinks that gelatin concentration is selected too low after analyzing pilot plant test, should suitably improve, thus commerical test unify to select mass percent be 20% obtain solution.
10m3 cobalt metal ore lysate is added in 15m3 reactor, starts and stir, start heating unit simultaneously, control solvent temperature to 70-90 DEG C, regulate pH to be 3, open pump, slowly add the good aqueous gelatin solution of configured in advance to lysate, after gelatin all adds, stir and within 20 minutes, stop to stir.Recording average filtration rate is 0.9m
3m
-2h
-1.The major metal cobalt rate of recovery is greater than 99%.Under identical experiment condition, if do not add gelatin, average filtration rate < 0.01 m
3m
-2h
-1, and after filtering 10min, filtration cannot be carried out.
10m3 metallic nickel ore lysate is added in 15m3 reactor, start and stir, start heating unit simultaneously, control solvent temperature to 80-90 DEG C, regulate pH to be 2, open pump, slowly add the good aqueous gelatin solution of configured in advance to lysate, after gelatin solution all adds, stir and within 30 minutes, stop to stir.Recording average filtration rate is 1m
3m
-2h
-1.Major metal nickel recovery is greater than 99%.Under identical experiment condition, if do not add gelatin, average filtration rate < 0.01 m
3m
-2h
-1, and after filtering 10min, filtration cannot be carried out.
10m3 metallic copper ore lysate is added in 15m3 reactor, start and stir, start heating unit simultaneously, control solvent temperature to 70-90 DEG C, regulate pH to be 5, open pump, slowly add the good aqueous gelatin solution of configured in advance to lysate, after gelatin solution all adds, stir and within 30 minutes, stop to stir.Recording average filtration rate is 0.8m
3m
-2h
-1.Major metal copper recovery is greater than 99%.Under identical experiment condition, if do not add gelatin, average filtration rate < 0.01 m
3m
-2h
-1, and after filtering 10min, filtration cannot be carried out.
Can be widely used in the pre-treatment of slurry filtration through test the present invention, greatly can improve filtration velocity, reduce the time of filtering link, after normal temperature process, filtration velocity is 0.5m
3m
-2h
-1, the solution filtration velocity after heat treated can reach 0.8-2.5 m
3m
-2h
-1substantially reduce and filter the time of link and the number of times of cleaning and filtering equipment, whole processing links is not brought other foreign ions into and is facilitated subsequent handling in addition, there is higher economic worth, so high not as in the imagination of the improvement that brings of pH value, can according to the market value of actual operation amount and pH adjusting agent from Row sum-equal matrix in specific operation process.
Above-described is only preferred embodiment of the present invention.Should be understood that for the person of ordinary skill of the art, under technology enlightenment provided by the present invention, as the common practise of this area, other equivalent modifications and improvement can also be made, also should be considered as protection scope of the present invention.
Claims (1)
1. improve a method for cobalt ore or nickel ores lysate filtration velocity, it is characterized in that comprising the following steps: the ore lysate after ore dressing is treated to acidity, ore lysate pH value is 2-5, and the silicone content in ore lysate is controlled at 2 ~ 5gL
-1in scope, then ore lysate adds the aqueous gelatin solution that mass percent is 10% ~ 25%, makes the mass ratio of gelatin and silicon control within the scope of 5:1 ~ 1:1, after fully stirring minute, carry out filtration treatment.
2. improve a method for Copper Ores lysate filtration velocity, it is characterized in that comprising the following steps: the ore lysate after ore dressing is treated to acidity, ore lysate pH value is 2-5, and the silicone content in ore lysate is controlled at 2 ~ 5gL
-1in scope, then ore lysate adds the aqueous gelatin solution that mass percent is 10% ~ 25%, makes the mass ratio of gelatin and silicon control within the scope of 5:1 ~ 1:1, after fully stirring minute, carry out filtration treatment.
3. method according to claim 1 and 2, is characterized in that: the temperature of lysate is 70-90 DEG C.
4. method according to claim 3, is characterized in that the mass ratio of gelatin and the silicon added is 1:1, and the temperature of ore lysate is 75 ~ 85 DEG C.
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|---|---|---|---|
| CN201310218684.8A CN103451424B (en) | 2013-06-04 | 2013-06-04 | Method for improving filtration velocity of ore dissolution liquid |
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| CN201310218684.8A CN103451424B (en) | 2013-06-04 | 2013-06-04 | Method for improving filtration velocity of ore dissolution liquid |
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| CN103451424A CN103451424A (en) | 2013-12-18 |
| CN103451424B true CN103451424B (en) | 2015-06-10 |
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| CN104988311B (en) * | 2015-04-23 | 2018-01-12 | 兰州金川新材料科技股份有限公司 | A kind of method for improving the high silicon cobalt raw material lysate rate of filtration |
Citations (5)
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|---|---|---|---|---|
| AU2009203214A1 (en) * | 2008-08-07 | 2010-02-25 | Sumitomo Metal Mining Co., Ltd. | Separation method for zinc sulfide |
| JP2010095788A (en) * | 2008-09-19 | 2010-04-30 | Sumitomo Metal Mining Co Ltd | Hydrometallurgical process of nickel oxide ore |
| CN101942679A (en) * | 2010-10-25 | 2011-01-12 | 江苏技术师范学院 | Method for preparing, pre-treating and dispersing superfine copper powder |
| US8052774B2 (en) * | 2009-03-31 | 2011-11-08 | Sumitomo Metal Mining Co., Ltd. | Method for concentration of gold in copper sulfide minerals |
| CN102659119A (en) * | 2012-04-18 | 2012-09-12 | 中国科学院过程工程研究所 | Method for separating and recovering silicon from high silicon acid liquid |
-
2013
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2009203214A1 (en) * | 2008-08-07 | 2010-02-25 | Sumitomo Metal Mining Co., Ltd. | Separation method for zinc sulfide |
| JP2010095788A (en) * | 2008-09-19 | 2010-04-30 | Sumitomo Metal Mining Co Ltd | Hydrometallurgical process of nickel oxide ore |
| US8052774B2 (en) * | 2009-03-31 | 2011-11-08 | Sumitomo Metal Mining Co., Ltd. | Method for concentration of gold in copper sulfide minerals |
| CN101942679A (en) * | 2010-10-25 | 2011-01-12 | 江苏技术师范学院 | Method for preparing, pre-treating and dispersing superfine copper powder |
| CN102659119A (en) * | 2012-04-18 | 2012-09-12 | 中国科学院过程工程研究所 | Method for separating and recovering silicon from high silicon acid liquid |
Non-Patent Citations (1)
| Title |
|---|
| 母育锋,杨显万,何蔼平.硅在氧化铜矿酸浸中的行为.《昆明理工大学学报》.1996,第21卷(第06期),36-38. * |
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Address after: 730000 Tianshui South Road, Gansu, Lanzhou, No. 222 Applicant after: Lanzhou University Applicant after: Jinchuan Group Co., Ltd. Address before: 737100 Gansu city of Jinchang province Jinchang District Road No. 98 Applicant before: Jinchuan Group Co., Ltd. Applicant before: Lanzhou University |
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