A kind of method for floating reclaiming sulphur oxygen mixed mineral in mine tailing
One, technical field
The present invention relates to a kind of flotation recovery method of sulphur oxygen composite ore, particularly a kind of method for floating reclaiming sulphur oxygen mixed mineral in mine tailing.
Two, background technology
In multi-metal sulfide ore dressing, some metalliferous minerals are lost in mine tailing due to reasons such as disseminated grain size is thin, surface oxidation, liberation degree of minerals are inadequate, technical merits.These mine tailings because useful value is low, it is agglomerating to bond, surface oxidation, disseminated grain size are thin and be mixed with foreign material and be stored in Tailings Dam by long-term heap; Along with the time of storing up is longer, the valuable mineral surface oxidation in mine tailing must be darker, and the difficulty of valuable metal recovery is larger.Along with mineral resources are petered out, metal price is gone up, and the metalliferous mineral of Tailings Dam middle-low grade then becomes the secondary resource having valency, and the secondary resource how as far as possible reclaiming this part surface oxidation becomes the focus of current ore dressing circle research.
Three, summary of the invention
The object of the present invention is to provide a kind of method for floating reclaiming sulphur oxygen mixed mineral in mine tailing, it can reclaim the metalliferous mineral of valuable sulphide ore and sulphide ore surface oxidation in mine tailing.
The present invention achieves the above object by the following technical solutions: a kind of method for floating reclaiming sulphur oxygen mixed mineral in mine tailing, concrete steps and regime of agent as follows:
(1) pH adjusting agent is made with sulfuric acid,
(2) mineral dispersant is made with calgon,
(3) vulcanized sodium, ammonium sulfate, copper sulphate make composite ore activator,
(4) mercaptan and butyl xanthate make composite ore collecting agent,
(5) foaming agent made by 2# oil,
(6) in floatation process, after mine tailing ore grinding to mineral monomer is dissociated, add sulfuric acid and adjust pH5.5 ~ 6, calgon is made mineral dispersant, vulcanized sodium, ammonium sulfate, copper sulphate make composite ore activator, and mercaptan and butyl xanthate make composite ore collecting agent, and 2# oil is made foaming agent and carried out collecting to composite ore, scan recleaning three times through one roughing and obtain bulk concentrate
(7) the total consumption of medicament is:
The method for floating of sulphur oxygen mixed mineral in described recovery mine tailing, during use, is first mixed with following concentration expressed in percentage by weight by described medicament:
Unless otherwise indicated, percentage of the present invention is mass percent, and each constituent content percentage sum is 100%.
Outstanding advantages of the present invention is:
1, the sulphur oxygen composite ore in mine tailing can be reclaimed simultaneously, obtain more high-grade bulk concentrate and the high rate of recovery.
2, can to resource comprehensive utilization, and flow process is simple.
Four, detailed description of the invention
Embodiment 1
In recovery mine tailing of the present invention, an application example of the method for floating of sulphur oxygen mixed mineral, comprises the steps:
1. raw mineral materials:
Raw mineral materials used is plumbous antimony zinc sulphur oxygen composite ore, in ore lead content be 0.28%, antimony 0.24%, zinc 1.26%, sulphur 5.63%.Material phase analysis shows: plumbous antimony mineral is based on jamesonite, another containing a small amount of galena, stibnite, and zinc mineral is based on containing marmatite, another containing a small amount of zincblende, and sulfur mineral is based on pyrite, magnetic iron ore, another containing a small amount of mispickel.In ore, Lead oxidation rate reaches 24.27%, and antimony oxygenation efficiency reaches 28.10%, and zinc oxygenation efficiency reaches 19.65%.
2. floating agent and operating condition:
In floatation process, after ore ore grinding to mineral monomer is dissociated, add sodium carbonate and adjust pH7.5 ~ 8, calgon is made fine mud mineral dispersant, other mineral inhibitor made by zinc sulfate and calcium hypochlorite, plumbous antimony mineral activator made by vulcanized sodium, carbonic hydroammonium, plumbi nitras, and diethyldithiocarbamate and butyl xanthate make plumbous antimony mineral collecting agent, and 2# oil is made foaming agent and carried out collecting to the plumbous antimony mineral of sulphur oxygen.Result of the test shows, above technique and agentia condition is adopted effectively to be reclaimed by sulphur oxygen mixed lead antimony ore, giving that ore deposit lead content is 0.28%, under the condition of antimony content 0.24%, through one roughing select for three times three twice selected, the plumbous grade of final acquisition is 20.87%, antimony grade 17.53%, and the rate of recovery is respectively the mixed lead antimony concentrate of 75.21% and 73.60%.
Embodiment 2
In recovery mine tailing of the present invention, the Another application example of the method for floating of sulphur oxygen mixed mineral, comprises the steps:
1. raw mineral materials:
Raw mineral materials used is plumbous antimony zinc sulphur oxygen composite ore, in ore lead content be 1.07%, antimony 0.83%, zinc 3.20%, sulphur 7.36%.Material phase analysis shows: lead minerals is based on galena, another containing a small amount of cerussite, and antimony is with brightness antimony for main ore deposit, and zinc mineral is based on containing zincblende, another containing a small amount of marmatite, and sulfur mineral is based on pyrite, mispickel, another containing a small amount of magnetic iron ore.In ore, Lead oxidation rate reaches 30.50%, and antimony oxygenation efficiency reaches 33.52%, and zinc oxygenation efficiency reaches 21.70%.
2. floating agent and operating condition:
In floatation process, after ore ore grinding to mineral monomer is dissociated, add sodium carbonate and adjust pH7.5 ~ 8, calgon is made fine mud mineral dispersant, other mineral inhibitor made by zinc sulfate and calcium hypochlorite, plumbous antimony mineral activator made by vulcanized sodium, carbonic hydroammonium, plumbi nitras, and diethyldithiocarbamate and butyl xanthate make plumbous antimony mineral collecting agent, and 2# oil is made foaming agent and carried out collecting to the plumbous antimony mineral of sulphur oxygen.Result of the test shows, above technique and agentia condition is adopted effectively to be reclaimed by sulphur oxygen mixed lead antimony ore, giving that ore deposit lead content is 1.07%, under the condition of antimony content 0.83%, through one roughing select for three times three twice selected, the plumbous grade of final acquisition is 34.55%, the mixed lead antimony concentrate of antimony grade 28.40%, lead recovery is 82.77%, and antimony recovery is 80.75%.