CN104437836A - Cyanide-free and chromium-free copper lead flotation separation method - Google Patents
Cyanide-free and chromium-free copper lead flotation separation method Download PDFInfo
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- CN104437836A CN104437836A CN201410724855.9A CN201410724855A CN104437836A CN 104437836 A CN104437836 A CN 104437836A CN 201410724855 A CN201410724855 A CN 201410724855A CN 104437836 A CN104437836 A CN 104437836A
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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
Abstract
The invention provides a cyanide-free and chromium-free copper lead flotation separation method which is characterized in that copper lead bulk flotation is realized by adopting a combined collector of ethyl thio carbamate +Z-200 which has better selectivity and collecting force according to raw ore properties of and process mineralogy characteristics of copper lead sulphide ore; bulk flotation concentrate is subjected to thickening, regrinding and thickening deep dereagent, and sodium sulphide and activated carbon are added in the regrinding process to strengthening the dereagent effect; in the copper lead separation process, sodium sulphite, zinc sulfate and carboxymethylcellulose combined inhibitor are adopted to restrict lead and float copper; The process is mainly implemented through three process links including raw ore copper lead bulk flotation, multi-mean strengthening dereagent, bulk concentrate copper lead separation; the method adopts the technological process of copper lead bulk flotation-multi-mean strengthening dereagent-cyanide-free and chromium-free copper lead separation and has an obvious effect in treatment of complex copper lead sulfide ore and similar ore; the copper grade of obtained copper concentrate is greater than 32%, the copper recovery rate is greater than 65%, the lead grade of lead concentrate is greater than 49%, and the lead recovery rate is greater than 88%.
Description
One. technical field
The present invention relates to smelting industry, especially relate to copper-lead ore-dressing of polymetallic ore method, specifically a kind of without cyanogen Chrome-free copper-lead flotation separation method.
Two. background technology
Along with the quickening of mineral products processing industry process, limited mineral resources are developed on a large scale, and raising resource utilization and energy-conserving and environment-protective have become current theme.
Copper-lead multi-metal sulfide composition of ores is complicated, and the mutual symbiosis of copper-lead mineral, mutually explanation or parcel, disseminated grain size is thin, complex structure.In addition, the native floatability of copper-lead mineral is close, is difficult to FLOTATION SEPARATION each other.Because copper mineral is close with lead minerals floatability, copper-lead sulfide flotation normal output Copper-lead mixed concentrate, then carry out Cu-Pb separation, Cu-Pb separation becomes the key of process the type ore.The most effective two kinds of methods of current copper-lead sulfide-bearing deposits are that cyanide presses down the floating lead of copper and potassium dichromate method presses down plumbous floating copper.Cyanide has stronger inhibitory action to copper mineral, then hardly inhibitory action is produced to galena, therefore but copper floats plumbous effect very well, but the cyanide that its drawback is use has severe toxicity, severe contamination can be caused to environment, and the gold and silver that can dissolve in ore and this raw copper sulfide mineral.Adopt potassium dichromate method to press down plumbous floating copper, its advantage is that dosing is little, and production operation is stablized, but dichromate ion is extremely difficult, also can cause severe contamination to environment.
Visible, for complicated copper-lead sulfide ore, develop a Green environmental protection; be applicable to the ore-dressing technique of tcrude ore character feature, realize the nontoxic separation of copper-lead, high efficiente callback copper, plumbous valuable element; be conducive to improving comprehensive utilization of resources level, increase the performance of enterprises, preserve the ecological environment.
Three. summary of the invention
The object of the invention is to seek a kind of green non-pollution, good separation effect, the beneficiation method that copper-lead is efficiently separated can be realized.To achieve these goals, the present invention, according to copper-lead sulphide ore tcrude ore character and Characteristics of The Process Mineralogy, adopts the selective and good combined capturing and collecting agent diethyldithiocarbamate of collecting power+Z-200 to realize copper-lead bulk flotation; Bulk flotation concentrate adopts dense++ dense degree of depth reagent removal of regrinding, and in the process of regrinding, add vulcanized sodium and active carbon strengthening reagent removal effect; Cu-Pb separation then adopts sodium sulfite+zinc sulfate+carboxymethyl cellulose composite restrainer to press down plumbous floating copper.This technique is achieved mainly through the bulk flotation of tcrude ore copper-lead, many means strengthening reagent removal, bulk concentrate Cu-Pb separation three process procedures.
The present invention is a kind of without cyanogen Chrome-free copper-lead flotation separation method, specifically comprises the following steps:
First: first the tcrude ore after fragmentation and water are added ore mill in the ratio of 1:1 and carry out ore grinding, make ball mill discharge mog reach-0.074mm and account for 60 ~ 65%, then carry out each cargo handling operation.
Second: copper-lead bulk flotation: lime is added in ball mill discharge and stir, adjusted to ph is to the optimum range being beneficial to the bulk flotation of copper-lead mineral, then add copper mineral and lead minerals is selective and the good diethyldithiocarbamate of collecting ability+Z-200 combined capturing and collecting agent, add foaming agent again and ensure the stable of froth bed, first carry out copper-lead bulk flotation to roughly select, bulk flotation rougher concentration obtains Copper-lead mixed concentrate through primary cleaning again; Copper-lead bulk flotation rougher tailings is scanned through twice and is obtained true tailings, and this mine tailing enters tailing dam and stores up.
3rd: many means strengthening reagent removals: Copper-lead mixed concentrate reagent removal effect is directly connected to the quality of Cu-Pb separation effect, is the committed step before Cu-Pb separation.The Copper-lead mixed concentrate that obtained by steps A first densely carries out preliminary reagent removal through one section, thickened underflow is added vulcanized sodium+active carbon and is carried out regrinding reagent removal, the discharge mog that makes to regrind reaches-0.038mm and accounts for 90 ~ 95%, more effectively improve the liberation degree of minerals of copper mineral and lead minerals, regrind discharge through two sections of dense further strengthening reagent removals, realize copper mineral and lead minerals surface is more clean, create better isolating environment to Cu-Pb separation.
4th: bulk concentrate Cu-Pb separation: it is selected that the two sections of thickened underflows interpolation collecting agent Z-200 obtained by step 3 carry out copper-lead again, further raising copper-lead grade, then add sodium sulfite+zinc sulfate+carboxymethyl cellulose and press down plumbous floating copper, selectedly obtain copper concentrate and lead concentrate by one roughing once purging selection and twice.
The invention has the advantages that:
The method employing copper-lead bulk flotation-many means strengthening reagent removals-without the technological process of cyanogen Chrome-free Cu-Pb separation, for the complicated copper-lead sulfide ore of process and similar ore Be very effective, the copper concentrate copper grade >32% obtained, copper recovery >65%; Lead concentrate plumbous grade >49%, lead recovery >88%.
Four. accompanying drawing explanation
Fig. 1 is a kind of process chart without cyanogen Chrome-free copper-lead flotation separation method of the present invention.
Five. detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
The detailed technological process of the present invention is: first the tcrude ore (1) after fragmentation and water are added ball mill in the ratio of 1:1 and carry out ore grinding, the mog to ball mill discharge reaches-0.074mm and accounts for 60 ~ 65%.Ball mill discharge (2) adds lime consumption 1000 ~ 1500g/t and (does ore deposit weighing scale with raw ore, lower same), adjustment slurry pH to 9 ~ 10, then add collecting agent diethyldithiocarbamate consumption 80 ~ 100g/t successively, Z-200 consumption 20 ~ 30g/t and foaming agent terpenic oil consumption 5 ~ 10g/t carries out copper-lead mixing and roughly selects; Copper-lead mixing rougher concentration (3) carries out the selected I of copper-lead, and copper-lead mixing rougher tailings (4) interpolation collecting agent diethyldithiocarbamate consumption 20 ~ 30g/t and Z-200 consumption 10 ~ 15g/t carries out copper-lead and scans I; The selected I mine tailing (5) of copper-lead be back to copper-lead mixing roughly select, copper-lead selected I concentrate (6) carry out one section dense; One section of thickened underflow (7) interpolation amount of sodium sulfide 600 ~ 800g/t, activated carbon dosage 600 ~ 800g/t carry out strengthening reagent removal effect of regrinding, discharge mog of regrinding accounts for 90 ~ 95% for-0.038mm, discharge (8) of regrinding carry out again two sections dense, further strengthening reagent removal effect; Two sections of thickened underflows (9) carry out the selected II of copper-lead, and the selected II concentrate (10) of copper-lead enters Cu-Pb separation, and the selected II mine tailing (11) of copper-lead is back to copper-lead and scans I; Copper-lead is scanned I concentrate (12) and is back to copper-lead mixing and roughly selects, and copper-lead scans that I mine tailing (13) adds collecting agent diethyldithiocarbamate consumption 20 ~ 30g/t, Z-200 consumption 10 ~ 15g/t carries out copper-lead and scans II; Copper-lead is scanned II concentrate (14) and is back to copper-lead and scans I, and copper-lead is scanned II mine tailing (15) and then drained into Tailings Dam as true tailings.The selected II concentrate (10) of copper-lead adds sodium sulfite consumption 600 ~ 800g/t, zinc sulfate consumption 800 ~ 1000g/t and carboxymethyl cellulose consumption 60 ~ 80g/t carries out Cu-Pb separation; Cu-Pb separation concentrate (16) adds sodium sulfite consumption 300 ~ 400g/t, zinc sulfate consumption 400 ~ 500g/t and carboxymethyl cellulose consumption 20 ~ 30g/t carries out the selected I of copper, and Cu-Pb separation mine tailing (17) interpolation Z-200 consumption 5 ~ 10g/t carries out copper and scans; The selected I mine tailing (18) of copper returns Cu-Pb separation, and copper selected I concentrate (19) adds sodium sulfite consumption 100 ~ 150g/t, zinc sulfate consumption 200 ~ 300g/t and carboxymethyl cellulose consumption 10 ~ 20g/t carries out the selected II of copper; Copper selected II mine tailing (20) is back to the selected I of copper, and the selected II concentrate of copper is then copper concentrate (21); Copper scavenger concentrate (22) returns Cu-Pb separation, and it is then lead concentrate (23) that copper scans mine tailing.
Above-described embodiment, the just one of the present invention's more preferably detailed description of the invention, the usual change that those skilled in the art carries out within the scope of technical solution of the present invention and replacing all should be included in protection scope of the present invention.
Claims (1)
1., without a cyanogen Chrome-free copper-lead flotation separation method, it is characterized in that: step is as follows:
First: first the tcrude ore after fragmentation and water are added ore mill in the ratio of 1:1 and carry out ore grinding, make ball mill discharge mog reach-0.074mm and account for 60 ~ 65%, then carry out each cargo handling operation;
Second: copper-lead bulk flotation: lime is added in ball mill discharge and stir, adjusted to ph is to the optimum range being beneficial to the bulk flotation of copper-lead mineral, then add copper mineral and lead minerals is selective and the good diethyldithiocarbamate of collecting ability+Z-200 combined capturing and collecting agent, add foaming agent again and ensure the stable of froth bed, first carry out copper-lead bulk flotation to roughly select, bulk flotation rougher concentration obtains Copper-lead mixed concentrate through primary cleaning again; Copper-lead bulk flotation rougher tailings is scanned through twice and is obtained true tailings, and this mine tailing enters tailing dam and stores up;
3rd: many means strengthening reagent removals: Copper-lead mixed concentrate reagent removal effect is directly connected to the quality of Cu-Pb separation effect, is the committed step before Cu-Pb separation.The Copper-lead mixed concentrate that obtained by steps A first densely carries out preliminary reagent removal through one section, thickened underflow is added vulcanized sodium+active carbon and is carried out regrinding reagent removal, the discharge mog that makes to regrind reaches-0.038mm and accounts for 90 ~ 95%, more effectively improve the liberation degree of minerals of copper mineral and lead minerals, regrind discharge through two sections of dense further strengthening reagent removals, realize copper mineral and lead minerals surface is more clean, create better isolating environment to Cu-Pb separation;
4th: bulk concentrate Cu-Pb separation: it is selected that the two sections of thickened underflows interpolation collecting agent Z-200 obtained by step 3 carry out copper-lead again, further raising copper-lead grade, then add sodium sulfite+zinc sulfate+carboxymethyl cellulose and press down plumbous floating copper, selectedly obtain copper concentrate and lead concentrate by one roughing once purging selection and twice.
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Cited By (8)
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| CN104772218A (en) * | 2015-04-22 | 2015-07-15 | 昆明冶金研究院 | Flotation separation process for mixed copper and lead concentrate |
| CN106540813A (en) * | 2016-10-29 | 2017-03-29 | 广西冶金研究院有限公司 | A kind of beneficiation method of the high cement copper lead sulphide ore of high-carbon |
| CN106563577A (en) * | 2016-10-28 | 2017-04-19 | 昆明理工大学 | Two-stage reagent removal method for ilmenite flotation concentrate |
| CN106881201A (en) * | 2017-01-20 | 2017-06-23 | 内蒙古科技大学 | A kind of copper-lead flotation separation method based on surface oxidation selective precipitation principle |
| CN107115973A (en) * | 2017-06-14 | 2017-09-01 | 北京中矿东方矿业有限公司 | A kind of method for floating that copper concentrate is separated from Copper-lead mixed concentrate |
| CN109746111A (en) * | 2018-12-28 | 2019-05-14 | 新巴尔虎右旗荣达矿业有限责任公司 | A kind of high-adaptability copper/lead/zinc ore flotation unit |
| CN110773328A (en) * | 2019-08-27 | 2020-02-11 | 湖南柿竹园有色金属有限责任公司 | Cyanide-free efficient combined sorting method for preferentially floating copper |
| CN114505174A (en) * | 2022-01-17 | 2022-05-17 | 广东省科学院资源利用与稀土开发研究所 | Copper-lead separation flotation method for copper-lead ore |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104772218A (en) * | 2015-04-22 | 2015-07-15 | 昆明冶金研究院 | Flotation separation process for mixed copper and lead concentrate |
| CN106563577A (en) * | 2016-10-28 | 2017-04-19 | 昆明理工大学 | Two-stage reagent removal method for ilmenite flotation concentrate |
| CN106563577B (en) * | 2016-10-28 | 2018-08-31 | 昆明理工大学 | A kind of two sections of reagent removal methods of ilmenite flotation concentrate |
| CN106540813A (en) * | 2016-10-29 | 2017-03-29 | 广西冶金研究院有限公司 | A kind of beneficiation method of the high cement copper lead sulphide ore of high-carbon |
| CN106881201A (en) * | 2017-01-20 | 2017-06-23 | 内蒙古科技大学 | A kind of copper-lead flotation separation method based on surface oxidation selective precipitation principle |
| CN106881201B (en) * | 2017-01-20 | 2019-02-22 | 内蒙古科技大学 | It is a kind of based on surface oxidation-selective precipitation principle copper-lead flotation separation method |
| CN107115973A (en) * | 2017-06-14 | 2017-09-01 | 北京中矿东方矿业有限公司 | A kind of method for floating that copper concentrate is separated from Copper-lead mixed concentrate |
| CN109746111A (en) * | 2018-12-28 | 2019-05-14 | 新巴尔虎右旗荣达矿业有限责任公司 | A kind of high-adaptability copper/lead/zinc ore flotation unit |
| CN110773328A (en) * | 2019-08-27 | 2020-02-11 | 湖南柿竹园有色金属有限责任公司 | Cyanide-free efficient combined sorting method for preferentially floating copper |
| CN114505174A (en) * | 2022-01-17 | 2022-05-17 | 广东省科学院资源利用与稀土开发研究所 | Copper-lead separation flotation method for copper-lead ore |
| CN114505174B (en) * | 2022-01-17 | 2023-12-29 | 广东省科学院资源利用与稀土开发研究所 | Copper-lead separation flotation method for copper-lead ore |
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Application publication date: 20150325 |