CN109022771A - A kind of zinc oxide ore acid lixiviant and its leaching method - Google Patents
A kind of zinc oxide ore acid lixiviant and its leaching method Download PDFInfo
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- CN109022771A CN109022771A CN201810863454.XA CN201810863454A CN109022771A CN 109022771 A CN109022771 A CN 109022771A CN 201810863454 A CN201810863454 A CN 201810863454A CN 109022771 A CN109022771 A CN 109022771A
- Authority
- CN
- China
- Prior art keywords
- leaching
- zinc oxide
- oxide ore
- acid
- ore
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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.)
- Pending
Links
- 238000002386 leaching Methods 0.000 title claims abstract description 75
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 title claims abstract description 68
- 239000011787 zinc oxide Substances 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 29
- 239000002253 acid Substances 0.000 title claims abstract description 13
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 29
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 24
- UTEFBSAVJNEPTR-RGEXLXHISA-N loprazolam Chemical compound C1CN(C)CCN1\C=C/1C(=O)N2C3=CC=C([N+]([O-])=O)C=C3C(C=3C(=CC=CC=3)Cl)=NCC2=N\1 UTEFBSAVJNEPTR-RGEXLXHISA-N 0.000 claims abstract description 13
- 229960003019 loprazolam Drugs 0.000 claims abstract description 13
- YNJBWRMUSHSURL-UHFFFAOYSA-N trichloroacetic acid Chemical compound OC(=O)C(Cl)(Cl)Cl YNJBWRMUSHSURL-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000002994 raw material Substances 0.000 claims abstract description 7
- 239000007787 solid Substances 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000002156 mixing Methods 0.000 claims abstract description 6
- 239000003814 drug Substances 0.000 claims description 6
- 238000000227 grinding Methods 0.000 claims description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract description 8
- 239000011707 mineral Substances 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000000605 extraction Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 231100000252 nontoxic Toxicity 0.000 abstract 1
- 230000003000 nontoxic effect Effects 0.000 abstract 1
- 239000000843 powder Substances 0.000 abstract 1
- 230000001681 protective effect Effects 0.000 abstract 1
- 239000011701 zinc Substances 0.000 description 19
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 11
- 229910052725 zinc Inorganic materials 0.000 description 11
- 238000005188 flotation Methods 0.000 description 6
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000010453 quartz Substances 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 4
- 239000000654 additive Substances 0.000 description 4
- 230000000996 additive effect Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 150000001412 amines Chemical class 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 229910052976 metal sulfide Inorganic materials 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- CBXWGGFGZDVPNV-UHFFFAOYSA-N so4-so4 Chemical compound OS(O)(=O)=O.OS(O)(=O)=O CBXWGGFGZDVPNV-UHFFFAOYSA-N 0.000 description 2
- 229910000010 zinc carbonate Inorganic materials 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- ZOOODBUHSVUZEM-UHFFFAOYSA-N ethoxymethanedithioic acid Chemical compound CCOC(S)=S ZOOODBUHSVUZEM-UHFFFAOYSA-N 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
- 239000012991 xanthate Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/04—Extraction of metal compounds from ores or concentrates by wet processes by leaching
- C22B3/06—Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic acid solutions, e.g. with acids generated in situ; in inorganic salt solutions other than ammonium salt solutions
- C22B3/08—Sulfuric acid, other sulfurated acids or salts thereof
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B19/00—Obtaining zinc or zinc oxide
- C22B19/20—Obtaining zinc otherwise than by distilling
- C22B19/22—Obtaining zinc otherwise than by distilling with leaching with acids
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/04—Extraction of metal compounds from ores or concentrates by wet processes by leaching
- C22B3/16—Extraction of metal compounds from ores or concentrates by wet processes by leaching in organic solutions
- C22B3/1608—Leaching with acyclic or carbocyclic agents
- C22B3/1658—Leaching with acyclic or carbocyclic agents of different types in admixture, e.g. with organic acids added to oximes
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a kind of zinc oxide ore acid lixiviant and its leaching methods, belong to mineral metallurgical technology field.Each raw material and its mass percent in acid lixiviant of the present invention are as follows: 10 ~ 80wt% of trichloroacetic acid, 10 ~ 80wt% of Loprazolam, 10 ~ 80wt% of sulfuric acid, leachate is the mixture for combining leaching agent and water, other leaching conditions are as follows: zinc oxide ore powder fineness -0.74mm accounts for 60% ~ 95% and leaches liquid-solid ratio (15 ~ 3): 1, the leaching concentration for combining leaching agent is 2 ~ 20wt%, leaching mixing time is 5min ~ 100min, and addition ultrasonic wave carries out auxiliary leaching in entire leaching process.Leaching agent of the present invention is nontoxic, efficient, environmentally protective；In addition, the leaching method is simple, and the leaching rate of zinc oxide ore can be improved, hence it is evident that shorten extraction time, do not need high temperature, pressurized equipment, be obtained with preferable leaching index under normal temperature conditions, and easy to operate, production cost is low.
Description
Technical field
The present invention relates to a kind of zinc oxide ore acid lixiviant and its leaching methods, belong to mineral metallurgical technology field.
Background technique
Currently, have in the world Italy, Spain, Germany, Russia, Poland, the U.S. and China etc. country exploitation and
Sort zinc oxide ore.Shown according to related data, the sorting index of external zinc oxide ore be zinc concentrate grade 36%~
40%, the rate of recovery 60%~70%, up to 78%；The technic index of domestic zinc oxide ore be zinc concentrate grade 35%~
38%, individually up to 40%, the rate of recovery average 68% or so, up to 78%.In the Yunnan in China, Guangxi, Liaoning, Gansu and four
River has had found a large amount of zinc oxide ore reserves, also finds zinc oxide mineral deposit in succession on the ground such as Qinghai and the Inner Mongol, discovery is complete altogether
State's zinc metal reserves have ten thousand t more than 8000.But the zinc in China needs that the production falls short consumes all the time, with vulcanization zinc resource
It is increasingly exhausted, recycling zinc oxide ore means more and more important.
The dressing method for handling zinc oxide ore is numerous, uses preferably at most sulfide flotation method.Sulfide flotation method is needed to oxidation
Zinc ore carry out prevulcanization processing, make its surface production metal sulfide, then add again amine or xanthate collectors into
Row flotation.But the effect is unsatisfactory for sulfide flotation, and the metal sulfide mainly produced is unstable, causes the absorption of collecting agent strong
Degree is weaker, is insufficient for the needs of mineralized froth, causes flotation effect bad, and amine collector is larger for clay content
Zinc oxide ore there is a problem of that defoaming is difficult.
Summary of the invention
The present invention provides a kind of zinc oxide ore acid lixiviant for deficiency existing for existing zinc oxide sulfide flotation,
For there is preferable leaching effect containing the zinc oxide ore based on Oxide ores of zinc with smithsonite, smithsonite, marionite etc..
To achieve the goals above, the invention is realized by the following technical scheme:
A kind of combination leaching agent for zinc oxide ore acidic leaching, each raw material and its mass percent in the combination leaching agent
Are as follows: 10 ~ 80wt% of trichloroacetic acid, 10 ~ 80wt% of Loprazolam, 10 ~ 80wt% of sulfuric acid；The combination leaching agent and leaching method are main
For the zinc oxide ore based on the acid gangues such as quartz, silicate.
When leaching zinc oxide using acidity combination leaching agent, specific leaching method are as follows: first by zinc oxide ore ore grinding
Account for 60% ~ 95% to -0.074mm, be then (15 ~ 3) in liquid-solid ratio: 1 ratio adds water to obtain mixed ore pulp, and addition combination is leached
Agent is 2 ~ 20wt% to dosage percent concentration is leached, and mixing time is 5min ~ 100min, uses ultrasound in entire leaching process
Wave carries out auxiliary leaching.
The principle of the present invention: trichloroacetic acid, Loprazolam, sulfuric acid can be separately as the leaching agents of zinc oxide ore, but deposit
The problems such as dosage is big, leaching effect is bad, by the combinations of three kinds of medicaments as leaching agent, in the presence of three kinds of leaching agents simultaneously with
When zinc oxide reacts, trichloroacetic acid adds in the environment of Ultrasonic Radiation can reduce Loprazolam and sulfuric acid and mineral surfaces
The activation energy of particle reaction, promotes reaction to be easier to carry out, while carrying out that reaction rate can be accelerated while multiple reactions, promotees
Into the dissolution of zinc oxide ore, have the function that enhanced leaching zinc oxide ore.It can be obvious for the leaching of single medicament
Leaching efficiency is improved, reaches raising floatation indicators, reduces the consumption of medicament, reduce the effect of production cost.
The present invention has the advantages that:
(1) three kinds of medicaments used in acid combination leaching agent of the present invention are as follows: trichloroacetic acid, Loprazolam, sulfuric acid are all normal
Medicament is advised, is easy to get, it is cheap.
(2) when leaching zinc oxide ore using acidity combination leaching agent, leaching efficiency is high, and reagent consumption is few, production cost
It is low.
(3) when leaching zinc oxide ore using this method, simple process, it is easy to accomplish.
Specific embodiment
Invention is further described in detail combined with specific embodiments below, but protection scope of the present invention is not limited to
The content.
Embodiment 1
Each raw material and its mass percent in combination leaching agent described in the present embodiment are as follows: trichloroacetic acid 10wt%, Loprazolam
10wt%, sulfuric acid 80wt%.
The process object of the present embodiment are as follows: Lanping, yunnan Province low-grade zinc oxide ore raw ore zinc grade 2.53%, in ore
Gangue mineral is mainly with quartz, and based on the acid gangues such as silicate, ore fineness -0.074mm accounts for 60%, is then by liquid-solid ratio
The ratio of 3:1 adds water to obtain mixed ore pulp, and adding leaching agent sulfuric acid sulfuric acid mass percent concentration into mixed ore pulp is 2
Wt%, mixing time 100min, addition ultrasonic wave carries out auxiliary leaching in entire leaching process, obtains Zn leaching rate and is
62.84%。
Use leaching agent described in the present embodiment (additive amount for 2 wt%) replace sulfuric acid, under the conditions of identical dosing,
Using leaching method of the present invention, the final Zn leaching rate that obtains is up to 95.75%.
Embodiment 2
Each raw material and its mass percent in combination leaching agent described in the present embodiment are as follows: trichloroacetic acid 10wt%, Loprazolam
80wt%, sulfuric acid 10wt%.
The process object of the present embodiment are as follows: Guangxi low-grade zinc oxide ore raw ore zinc grade 3.16%, the gangue in ore
Mineral are mainly with quartz, and based on the acid gangues such as silicate, ore fineness -0.074mm accounts for 80%, are then 7:1's by liquid-solid ratio
Ratio adds water to obtain mixed ore pulp, and addition leaching agent trichloroacetic acid mass percent concentration of trichloroacetic acid into mixed ore pulp is
10 wt%, mixing time 60min, addition ultrasonic wave carries out auxiliary leaching in entire leaching process, obtains Zn leaching rate and is
83.64%。
Using leaching agent described in the present embodiment, (additive amount replaces trichloroacetic acid for 10 wt%), in identical dosing item
Under part, using leaching method of the present invention, the final Zn leaching rate that obtains is up to 96.73%, and leaching rate significantly improves.
Embodiment 3
Each raw material and its mass percent in combination leaching agent described in the present embodiment are as follows: trichloroacetic acid 80wt%, Loprazolam
10wt%, sulfuric acid 10wt%.
The process object of the present embodiment are as follows: Jiangxi zinc oxide ore raw ore zinc grade 8.50%, the gangue mineral master in ore
Will be with quartz, based on the acid gangues such as silicate, ore fineness -0.074mm accounts for 95%, the ratio for being then 15:1 in liquid-solid ratio
Water is added to obtain mixed ore pulp, the mass percent concentration of addition leaching agent Loprazolam Loprazolam into mixed ore pulp is 20
Wt%, mixing time 5min, addition ultrasonic wave carries out auxiliary leaching in entire leaching process, and obtaining Zn leaching rate is 72.43%.
Using leaching agent described in the present embodiment, (additive amount replaces Loprazolam for 20 wt%), in identical dosing item
Under part, using leaching method of the present invention, the final Zn leaching rate that obtains is up to 90.52%.
Embodiment 4
Each raw material and its mass percent in combination leaching agent described in the present embodiment are as follows: trichloroacetic acid 30wt%, Loprazolam
30wt%, sulfuric acid 40wt%.
The process object of the present embodiment are as follows: Guangxi zinc oxide ore raw ore zinc grade 6.50%, the gangue mineral master in ore
Will be with quartz, based on the acid gangues such as silicate, ore fineness -0.074mm accounts for 70%, the ratio for being then 10:1 in liquid-solid ratio
Water is added to obtain mixed ore pulp, the mass percent concentration of addition leaching agent sulfuric acid sulfuric acid into mixed ore pulp is 15 wt%, stirring
Time is 50min, and ultrasonic wave is added in entire leaching process and carries out auxiliary leaching, and obtaining Zn leaching rate is 81.53%.
Using leaching agent described in the present embodiment, (additive amount replaces sulfuric acid for 15 wt%), in identical dosing condition
Under, using leaching method of the present invention, the final Zn leaching rate that obtains is up to 98.61%.
Claims (2)
1. a kind of zinc oxide ore acid lixiviant, it is characterised in that: each raw material and its mass percent in the combination leaching agent
Are as follows: 10 ~ 80wt% of trichloroacetic acid, 10 ~ 80wt% of Loprazolam, 10 ~ 80wt% of sulfuric acid.
2. combination medicament described in claim 1 is used for the method that zinc oxide ore leaches, it is characterised in that: first by zinc oxide ore ore grinding
Account for 60% ~ 95% to -0.074mm, be then (15 ~ 3) in liquid-solid ratio: 1 ratio adds water to obtain mixed ore pulp, and addition combination is leached
Agent to leaching agent mass percent concentration is 2 ~ 20wt%, and mixing time is 5min ~ 100min, is used in entire leaching process super
Sound wave carries out auxiliary leaching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810863454.XA CN109022771A (en) | 2018-08-01 | 2018-08-01 | A kind of zinc oxide ore acid lixiviant and its leaching method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810863454.XA CN109022771A (en) | 2018-08-01 | 2018-08-01 | A kind of zinc oxide ore acid lixiviant and its leaching method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109022771A true CN109022771A (en) | 2018-12-18 |
Family
ID=64648494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810863454.XA Pending CN109022771A (en) | 2018-08-01 | 2018-08-01 | A kind of zinc oxide ore acid lixiviant and its leaching method |
Country Status (1)
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| CN (1) | CN109022771A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113308607A (en) * | 2021-04-22 | 2021-08-27 | 昆明理工大学 | Method for enhancing zinc oxide smoke dust leaching by ultrasonic waves and hydrogen peroxide |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101395285A (en) * | 2006-03-01 | 2009-03-25 | 巴斯夫欧洲公司 | Process for the acid digestion of metal-containing compounds |
| WO2014000021A1 (en) * | 2012-06-26 | 2014-01-03 | Metaleach Limited | Method for leaching zinc silicate ores |
| CN104388673A (en) * | 2014-10-29 | 2015-03-04 | 昆明理工大学 | Calamine-based zinc oxide ore leaching agent and leaching method thereof |
| WO2016210051A1 (en) * | 2015-06-24 | 2016-12-29 | Greene Lyon Group, Inc. | Selective removal of noble metals using acidic fluids, including fluids containing nitrate ions |
| CN106676270A (en) * | 2017-01-05 | 2017-05-17 | 中南大学 | All-wet method for extracting lead from lead plaster and lead sulfide concentrate |
-
2018
- 2018-08-01 CN CN201810863454.XA patent/CN109022771A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101395285A (en) * | 2006-03-01 | 2009-03-25 | 巴斯夫欧洲公司 | Process for the acid digestion of metal-containing compounds |
| WO2014000021A1 (en) * | 2012-06-26 | 2014-01-03 | Metaleach Limited | Method for leaching zinc silicate ores |
| CN104388673A (en) * | 2014-10-29 | 2015-03-04 | 昆明理工大学 | Calamine-based zinc oxide ore leaching agent and leaching method thereof |
| WO2016210051A1 (en) * | 2015-06-24 | 2016-12-29 | Greene Lyon Group, Inc. | Selective removal of noble metals using acidic fluids, including fluids containing nitrate ions |
| CN106676270A (en) * | 2017-01-05 | 2017-05-17 | 中南大学 | All-wet method for extracting lead from lead plaster and lead sulfide concentrate |
Non-Patent Citations (1)
| Title |
|---|
| 《浸矿技术》编委会: "《浸矿技术》", 31 October 1994 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113308607A (en) * | 2021-04-22 | 2021-08-27 | 昆明理工大学 | Method for enhancing zinc oxide smoke dust leaching by ultrasonic waves and hydrogen peroxide |
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| CB03 | Change of inventor or designer information |
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