CN105498946A - Arsenic-reducing mineral processing process for high-arsenic sulfur concentrate rich in tin copper associated sulphide minerals - Google Patents
Arsenic-reducing mineral processing process for high-arsenic sulfur concentrate rich in tin copper associated sulphide minerals Download PDFInfo
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- CN105498946A CN105498946A CN201510881249.2A CN201510881249A CN105498946A CN 105498946 A CN105498946 A CN 105498946A CN 201510881249 A CN201510881249 A CN 201510881249A CN 105498946 A CN105498946 A CN 105498946A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B7/00—Combinations of wet processes or apparatus with other processes or apparatus, e.g. for dressing ores or garbage
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/001—Flotation agents
- B03D1/004—Organic compounds
- B03D1/012—Organic compounds containing sulfur
Abstract
The invention discloses an arsenic-reducing mineral processing process for high-arsenic sulfur concentrate rich in tin copper associated sulphide minerals. The arsenic-reducing mineral processing process comprises the following steps: grinding minerals and scrubbing to remove reagents after carrying out concentration dehydration on the high-arsenic sulfur concentrate rich in the tin copper associated sulphide minerals, adding an arsenic-reducing inhibitor to re-inhibit arsenopyrite minerals, feeding the high-arsenic sulfur concentrate to a full-floating arsenic-reducing mineral processing process of primary roughing, secondary scavenging and primary concentration after size mixing, wherein a low-arsenic high-sulfur sulfur concentrate product is produced by adding a combined arsenic-reducing inhibitor; carrying out gravity separation by a shaking table on tailings subjected to secondary scavenging, thereby obtaining arsenic and tin mixed minerals and total tailings; and separating the arsenic and tin mixed minerals, thereby obtaining an arsenic concentrate product and a tin rough concentrate product. The arsenic-reducing mineral processing process is good in separating effect of sulfur and arsenic in the tin copper associated sulphide minerals, and is high in sulphide mineral recovery rate, so that valuable minerals are comprehensively recycled and utilized, and the reagent cost is low; and the method is simple, and is easy to operate.
Description
Technical field
The invention belongs to mineral processing technology field, what be specifically related to be rich in tin copper symbiotic sulfide ore high arsenic-bearing pyrite concentrate falls arsenic ore-dressing technique.
Background technology
Arsenic worldwide extensively exists, and because arsenic belongs to sulphophile element, many sulphide ores all association have arsenic mineral.Nature arsenic mineral about has kind more than 150, is mainly mispickel, is more common in greatly high temperature and mesothermal deposit, and usually with sulfide mineral and the close symbiosis of noble metal gold and silver such as chalcopyrite, pyrite, magnetic iron ore, stibnite, galena, zincblende, cassiterite.In addition, enargite and loellingite are also more common.According to statistics, there is the copper ore resource arsenic of 15% to be 1: 5 with the ratio of copper in the world, have the gold ore resource arsenic Jin Bida 2000: 1 of 5%.Arsenic is a kind of poisonous and harmful impurity, and the existence of arsenic in ore dressing process, not only have impact on the quality of concentrate product, is unfavorable for the sale of product, brings serious environmental problem also to follow-up Metallurgical processing process simultaneously.Along with environmental legislation be gradually improved with strictly, the arsenic content allowed in smelting refined mineral products is also reduced increasingly.The relevant quality standard regulation of China smelts As<0.13% in concentrate.
The tin industry in Yunnan Province of China Geju City be correlated with Mineral Processing Enterprises production in produce tens thousand of tons of high arsenic-bearing pyrite concentrates and (be greater than 2% containing arsenic every year, Gao Shikeda 8 ~ 10%), be mainly copper-sulphur content in tin copper symbiotic sulfide ore from high arsenic-bearing pyrite concentrate, its arsenic mineral is based on mispickel; This high arsenic-bearing pyrite concentrate is also with a large amount of Residuals and sulphur, arsenic mineral can similar temperaments, and separating difficulty is large.This high arsenic-bearing pyrite concentrate is difficult to because arsenic is high sell for a long time, and product overstocks in a large number; Namely market good, can sell, its price is only about 10% of normal iron concentrate.Prior art has the recovery and treatment method of some arsenic-containing ores, as Chinese patent CN103212481A discloses a kind of floatation process of arsenic-containing pyrite, Chinese patent CN104549769A discloses a kind of method of FLOTATION SEPARATION sulfoarsenic mineral from mine tailing, Chinese patent CN104313343A discloses a kind of high arsenic and leaches gold extracting method containing gold sulfur concentrate oxidizing roasting-microwave radiation technology, these methods respectively have superiority, but do not have a kind of method to be applicable to arsenic in high arsenic-bearing pyrite concentrate, sulfur mineral surface is activated by medicament, and with the arsenic of a large amount of Residuals, arsenic falls in sulphur bulk flotation, be difficult to obtain desirable treatment effect under lower processing cost.
Summary of the invention
The object of the invention is to solve the deficiencies in the prior art, propose a kind of economy, be suitable for, processing cost is lower, be rich in high arsenic-bearing pyrite concentrate in tin copper symbiotic sulfide ore that treatment effect is good arsenic ore-dressing technique is fallen.
Object of the present invention is achieved through the following technical solutions:
What be rich in high arsenic-bearing pyrite concentrate in tin copper symbiotic sulfide ore falls an arsenic ore-dressing technique, and processing step is as follows:
1) tin copper symbiotic sulfide ore is produced be rich in high arsenic-bearing pyrite concentrate and carry out thickening, 40-60% is reached to mass concentration, then carry out ore grinding and clean reagent removal 1-6 minute, add again and fall arsenic inhibitor mispickel mineral are suppressed again, mix and blend 3 ~ 5 minutes, is then pressed into and selects pulp density 20% ~ 30% to size mixing; Described arsenic inhibitor falls and the addition in ore pulp is that lime 1000-4000g/t, sodium humate 100-400g/t, ammonium chloride are or/and ammonium sulfate 400-1000g/t;
2) by through step 1) process ore pulp sends into one roughing, secondary is scanned, arsenic ore-dressing technique falls in the bulk flotation of primary cleaning, by adding combination arsenic inhibitor falls, the iron concentrate product of the low arsenic high-sulfur of output; Add collecting agent butyl xanthate 30 ~ 60g/t, foaming agent 2# oil 10 ~ 20g/t during one roughing, obtain roughly selecting foam and sulphur rough concentrate and rougher tailings; It is add collecting agent butyl xanthate 20 ~ 40g/t, foaming agent 2# oil 5 ~ 10g/t at rougher tailings that the first time that secondary is scanned scans, and flotation obtains scanning foam chats for the first time and scanning mine tailing for the first time, and first time scans foam chats and returns into roughly selecting operation; It is by scanning mine tailing adds collecting agent butyl xanthate 10 ~ 20g/t, foaming agent 2# oil 2 ~ 5g/t for the first time that second time is scanned, and flotation obtains second time and scans foam chats and scan mine tailing for the second time, and second time is scanned foam chats and returned into scanning operation for the first time; Primary cleaning in sulphur rough concentrate, adds the selected operation flotation that arsenic inhibitor suppression arsenic mineral falls in combination, the low arsenic of output, high-sulfur iron concentrate and chats, and middling recurrence roughly selects operation; It is more than two or three in ammonium chloride, ammonium sulfate, lime, sodium humate, bleaching powder, potassium permanganate that arsenic inhibitor falls in described combination;
3) by step 2) second time that obtains scans mine tailing and carries out table concentration, obtains arsenic, tin composite ore and total mine tailing;
4) by step 3) arsenic that obtains, tin composite ore be separated, and obtains arsenic concentrate product and tin rough concentrate product.
Step 1 of the present invention) described tin copper symbiotic sulfide ore is produced be rich in high arsenic-bearing pyrite concentrate carry out thickening be tin copper symbiotic sulfide ore is produced be rich in high arsenic-bearing pyrite concentrate ore pulp send into sedimentation basin precipitation after adopt cyclone carry out thickening.Described ore grinding is cleaned reagent removal and is completed by overflowball mill.
Present invention process, can output sulfur-bearing more than 40%, the rate of recovery 60%, senior iron concentrate containing arsenic 0.4 ~ 0.8% for the high arsenic-bearing pyrite concentrate being greater than 2% containing arsenic, also can produce containing arsenic about 20%, stanniferous 0.5 ~ 1% arsenic, tin composite ore; Also arsenic, tin composite ore can be separated, obtain arsenic concentrate product and the tin rough concentrate product of high-quality, realize good economic benefit and social benefit.
The present invention in tin copper symbiotic sulfide ore, sulphur, arsenic mineral good separating effect, the sulfur mineral rate of recovery is high, and valuable mineral obtains comprehensive reutilization, and reagent cost is low, and method simple, operate simple and easy, belong to energy-conservation, the beneficiation method of low-carbon (LC), suitablely to promote the use.
Detailed description of the invention
Embodiment 1
What be rich in high arsenic-bearing pyrite concentrate in tin copper symbiotic sulfide ore falls an arsenic ore-dressing technique, and step is as follows:
1) tin copper symbiotic sulfide ore is produced be rich in high arsenic-bearing pyrite concentrate ore pulp send into sedimentation basin precipitation after adopt cyclone carry out thickening, 60% is reached to mass concentration, then adopt overflowball mill to carry out ore grinding and clean reagent removal 1-3 minute, add again and fall arsenic inhibitor mispickel mineral are suppressed again, mix and blend 3 ~ 5 minutes, is then pressed into and selects pulp density 25% to size mixing; Described arsenic inhibitor falls and the addition in ore pulp is lime 3000g/t, sodium humate 400g/t, ammonium chloride 400g/t, ammonium sulfate 500g/t;
2) by through step 1) process ore pulp sends into one roughing, secondary is scanned, arsenic ore-dressing technique falls in the bulk flotation of primary cleaning, by adding combination arsenic inhibitor falls, the iron concentrate product of the low arsenic high-sulfur of output; Add collecting agent butyl xanthate 50g/t, foaming agent 2# oil 20g/t during one roughing, obtain roughly selecting foam and sulphur rough concentrate and rougher tailings; It is add collecting agent butyl xanthate 30g/t, foaming agent 2# oil 5g/t at rougher tailings that the first time that secondary is scanned scans, and flotation obtains scanning foam chats for the first time and scanning mine tailing for the first time, and first time scans foam chats and returns into roughly selecting operation; It is is scanned mine tailing first time to add the oily 5g/t of collecting agent butyl xanthate 20g/t, foaming agent 2# that second time is scanned, and flotation obtains scanning foam chats for the second time and scans mine tailing with second time, and second time is scanned foam chats and returned into scanning operation for the first time; Primary cleaning in sulphur rough concentrate, adds the selected operation flotation that arsenic inhibitor suppression arsenic mineral falls in combination, the low arsenic of output, high-sulfur iron concentrate and chats, and middling recurrence roughly selects operation; It is more than two or three in ammonium chloride, ammonium sulfate, lime, sodium humate, bleaching powder, potassium permanganate that arsenic inhibitor falls in described combination;
3) by step 2) second time that obtains scans mine tailing and carries out table concentration, obtains arsenic, tin composite ore and total mine tailing;
4) by step 3) arsenic that obtains, tin composite ore be separated, and obtains arsenic concentrate product and tin rough concentrate product.
Embodiment 2
What be rich in high arsenic-bearing pyrite concentrate in tin copper symbiotic sulfide ore falls an arsenic ore-dressing technique, and step is as follows:
1) tin copper symbiotic sulfide ore is produced be rich in high arsenic-bearing pyrite concentrate ore pulp send into sedimentation basin precipitation after adopt cyclone carry out thickening, 50% is reached to mass concentration, then adopt overflowball mill to carry out ore grinding and clean reagent removal 3-5 minute, add again and fall arsenic inhibitor mispickel mineral are suppressed again, mix and blend 3 ~ 5 minutes, is then pressed into and selects pulp density 20% to size mixing; Described arsenic inhibitor falls and the addition in ore pulp is lime 1000g/t, sodium humate 200g/t, ammonium chloride 1000g/t;
2) by through step 1) process ore pulp sends into one roughing, secondary is scanned, arsenic ore-dressing technique falls in the bulk flotation of primary cleaning, by adding combination arsenic inhibitor falls, the iron concentrate product of the low arsenic high-sulfur of output; Add collecting agent butyl xanthate 60g/t, foaming agent 2# oil 15g/t during one roughing, obtain roughly selecting foam and sulphur rough concentrate and rougher tailings; It is add collecting agent butyl xanthate 20g/t, foaming agent 2# oil 8g/t at rougher tailings that the first time that secondary is scanned scans, and flotation obtains scanning foam chats for the first time and scanning mine tailing for the first time, and first time scans foam chats and returns into roughly selecting operation; It is is scanned mine tailing first time to add the oily 2g/t of collecting agent butyl xanthate 10g/t, foaming agent 2# that second time is scanned, and flotation obtains scanning foam chats for the second time and scans mine tailing with second time, and second time is scanned foam chats and returned into scanning operation for the first time; Primary cleaning in sulphur rough concentrate, adds the selected operation flotation that arsenic inhibitor suppression arsenic mineral falls in combination, the low arsenic of output, high-sulfur iron concentrate and chats, and middling recurrence roughly selects operation; It is more than two or three in ammonium chloride, ammonium sulfate, lime, sodium humate, bleaching powder, potassium permanganate that arsenic inhibitor falls in described combination;
3) by step 2) second time that obtains scans mine tailing and carries out table concentration, obtains arsenic, tin composite ore and total mine tailing;
4) by step 3) arsenic that obtains, tin composite ore be separated, and obtains arsenic concentrate product and tin rough concentrate product.
Embodiment 3
What be rich in high arsenic-bearing pyrite concentrate in tin copper symbiotic sulfide ore falls an arsenic ore-dressing technique, and step is as follows:
1) tin copper symbiotic sulfide ore is produced be rich in high arsenic-bearing pyrite concentrate ore pulp send into sedimentation basin precipitation after adopt cyclone carry out thickening, 40% is reached to mass concentration, then adopt overflowball mill to carry out ore grinding and clean reagent removal 5-6 minute, add again and fall arsenic inhibitor mispickel mineral are suppressed again, mix and blend 3 ~ 5 minutes, is then pressed into and selects pulp density 30% to size mixing; Described arsenic inhibitor falls and the addition in ore pulp is lime 4000g/t, sodium humate 100g/t, ammonium sulfate 400g/t;
2) by through step 1) process ore pulp sends into one roughing, secondary is scanned, arsenic ore-dressing technique falls in the bulk flotation of primary cleaning, by adding combination arsenic inhibitor falls, the iron concentrate product of the low arsenic high-sulfur of output; Add collecting agent butyl xanthate 30g/t, foaming agent 2# oil 10g/t during one roughing, obtain roughly selecting foam and sulphur rough concentrate and rougher tailings; It is add collecting agent butyl xanthate 40g/t, foaming agent 2# oil 10g/t at rougher tailings that the first time that secondary is scanned scans, and flotation obtains scanning foam chats for the first time and scanning mine tailing for the first time, and first time scans foam chats and returns into roughly selecting operation; It is is scanned mine tailing first time to add the oily 3g/t of collecting agent butyl xanthate 15g/t, foaming agent 2# that second time is scanned, and flotation obtains scanning foam chats for the second time and scans mine tailing with second time, and second time is scanned foam chats and returned into scanning operation for the first time; Primary cleaning in sulphur rough concentrate, adds the selected operation flotation that arsenic inhibitor suppression arsenic mineral falls in combination, the low arsenic of output, high-sulfur iron concentrate and chats, and middling recurrence roughly selects operation; It is more than two or three in ammonium chloride, ammonium sulfate, lime, sodium humate, bleaching powder, potassium permanganate that arsenic inhibitor falls in described combination;
3) by step 2) second time that obtains scans mine tailing and carries out table concentration, obtains arsenic, tin composite ore and total mine tailing;
4) by step 3) arsenic that obtains, tin composite ore be separated, and obtains arsenic concentrate product and tin rough concentrate product.
Present invention process is applied to the iron concentrate of Area, Gejiu District, Yunnan Province company 600 ton per day flow process, shallow crust structures flotation output, iron concentrate is containing arsenic 6%, carry out falling arsenic FLOTATION SEPARATION, finally obtain falling arsenic flotation of sulfur concentrate sulfur-bearing 56.25%, the low arsenic containing arsenic 0.78%, sulfur recovery rate 56.68%, high-sulfur iron concentrate; Simultaneously output containing arsenic 14.69%, stanniferous 0.7% arsenic, tin mixed middling product.
Present invention process is applied to the iron concentrate of Area, Gejiu District, Yunnan Province company 160 ton per day flow process, shallow crust structures flotation output, iron concentrate is containing arsenic 8.3%, carry out flotation and fall arsenic separation, finally obtain falling arsenic flotation of sulfur concentrate sulfur-bearing 47.58%, the low arsenic containing arsenic 0.336%, sulfur recovery rate 67.29%%, high-sulfur iron concentrate; Simultaneously output containing arsenic 18.25%, stanniferous 0.8% arsenic, tin mixed middling product.
In present invention process process, involved equipment all can adopt prior art equipment.Involved medicament all can be bought from market, also can prepare voluntarily.
The g/t occurred in the present invention refers to the grams of the something added in ore pulp per ton.
Claims (3)
1. what be rich in high arsenic-bearing pyrite concentrate in tin copper symbiotic sulfide ore falls an arsenic ore-dressing technique, and it is characterized in that, processing step is as follows:
1) tin copper symbiotic sulfide ore is produced be rich in high arsenic-bearing pyrite concentrate and carry out thickening, 40-60% is reached to mass concentration, then carry out ore grinding and clean reagent removal 1-6 minute, add again and fall arsenic inhibitor mispickel mineral are suppressed again, mix and blend 3 ~ 5 minutes, is then pressed into and selects pulp density 20% ~ 30% to size mixing; Described arsenic inhibitor falls and the addition in ore pulp is that lime 1000-4000g/t, sodium humate 100-400g/t, ammonium chloride are or/and ammonium sulfate 400-1000g/t;
2) by through step 1) process ore pulp sends into one roughing, secondary is scanned, arsenic ore-dressing technique falls in the bulk flotation of primary cleaning, by adding combination arsenic inhibitor falls, the iron concentrate product of the low arsenic high-sulfur of output; Add collecting agent butyl xanthate 30 ~ 60g/t, foaming agent 2# oil 10 ~ 20g/t during one roughing, obtain roughly selecting foam and sulphur rough concentrate and rougher tailings; It is add collecting agent butyl xanthate 20 ~ 40g/t, foaming agent 2# oil 5 ~ 10g/t at rougher tailings that the first time that secondary is scanned scans, and flotation obtains scanning foam chats for the first time and scanning mine tailing for the first time, and first time scans foam chats and returns into roughly selecting operation; It is by scanning mine tailing adds collecting agent butyl xanthate 10 ~ 20g/t, foaming agent 2# oil 2 ~ 5g/t for the first time that second time is scanned, and flotation obtains second time and scans foam chats and scan mine tailing for the second time, and second time is scanned foam chats and returned into scanning operation for the first time; Primary cleaning in sulphur rough concentrate, adds the selected operation flotation that arsenic inhibitor suppression arsenic mineral falls in combination, the low arsenic of output, high-sulfur iron concentrate and chats, and middling recurrence roughly selects operation; It is more than two or three in ammonium chloride, ammonium sulfate, lime, sodium humate, bleaching powder, potassium permanganate that arsenic inhibitor falls in described combination;
3) by step 2) second time that obtains scans mine tailing and carries out table concentration, obtains arsenic, tin composite ore and total mine tailing;
4) by step 3) arsenic that obtains, tin composite ore be separated, and obtains arsenic concentrate product and tin rough concentrate product.
2. what be rich in high arsenic-bearing pyrite concentrate in a kind of tin copper symbiotic sulfide ore according to claim 1 falls arsenic ore-dressing technique, it is characterized in that, step 1) described tin copper symbiotic sulfide ore is produced be rich in high arsenic-bearing pyrite concentrate carry out thickening be tin copper symbiotic sulfide ore is produced be rich in high arsenic-bearing pyrite concentrate ore pulp send into sedimentation basin precipitation after adopt cyclone carry out thickening.
3. what be rich in high arsenic-bearing pyrite concentrate in a kind of tin copper symbiotic sulfide ore according to claim 1 falls arsenic ore-dressing technique, it is characterized in that, step 1) described ore grinding cleans reagent removal and completed by overflowball mill.
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| CN105903573A (en) * | 2016-04-28 | 2016-08-31 | 厦门紫金矿冶技术有限公司 | Composite beneficiation inhibitor used for copper-arsenic separating flotation |
| CN106733142A (en) * | 2016-12-29 | 2017-05-31 | 云南锡业股份有限公司卡房分公司 | A kind of online flotation drop arsenic method of the production of high arsenic-and copper-bearing concentrate |
| CN107694741A (en) * | 2017-11-01 | 2018-02-16 | 紫金矿业集团股份有限公司 | A kind of method of copper concentrate arsenic removal |
| CN108212537A (en) * | 2018-01-08 | 2018-06-29 | 昆明理工大学 | A kind of method for floating of high arsenic-bearing pyrite concentrate arsenic removal |
| CN111250270A (en) * | 2020-02-20 | 2020-06-09 | 北京矿冶科技集团有限公司 | Poisonous sand combined inhibitor and beneficiation method for high-sulfur high-arsenic lead-zinc silver ore |
| CN111530622A (en) * | 2020-05-08 | 2020-08-14 | 江西理工大学 | Method for removing impurities from high-grade sulfur concentrate |
| CN113976331A (en) * | 2021-10-22 | 2022-01-28 | 昆明理工大学 | Method for preparing high-purity pyrite by flotation mass transfer dynamics regulation |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105903573A (en) * | 2016-04-28 | 2016-08-31 | 厦门紫金矿冶技术有限公司 | Composite beneficiation inhibitor used for copper-arsenic separating flotation |
| CN106733142A (en) * | 2016-12-29 | 2017-05-31 | 云南锡业股份有限公司卡房分公司 | A kind of online flotation drop arsenic method of the production of high arsenic-and copper-bearing concentrate |
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| CN108212537A (en) * | 2018-01-08 | 2018-06-29 | 昆明理工大学 | A kind of method for floating of high arsenic-bearing pyrite concentrate arsenic removal |
| CN111250270A (en) * | 2020-02-20 | 2020-06-09 | 北京矿冶科技集团有限公司 | Poisonous sand combined inhibitor and beneficiation method for high-sulfur high-arsenic lead-zinc silver ore |
| CN111530622A (en) * | 2020-05-08 | 2020-08-14 | 江西理工大学 | Method for removing impurities from high-grade sulfur concentrate |
| CN111530622B (en) * | 2020-05-08 | 2022-03-22 | 江西理工大学 | Method for removing impurities from high-grade sulfur concentrate |
| CN113976331A (en) * | 2021-10-22 | 2022-01-28 | 昆明理工大学 | Method for preparing high-purity pyrite by flotation mass transfer dynamics regulation |
| CN113976331B (en) * | 2021-10-22 | 2023-07-25 | 昆明理工大学 | Method for preparing high-purity pyrite through flotation mass transfer dynamics regulation and control |
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