leaching of zinc use methode chlorine

leaching of zinc use methode chlorine

Leaching of oxidic zinc materials with chlorine and chlorine hydrate

Abstract Low grade zinc ores and residues were leached in chlorine water and chlorine hydrate water mixtures It was found that the rate of leaching Adrar ore and Electric Arc Furnace dust obeyed a shrinking core diffusion model whereas the rate of leaching of Turkish ore appeared to be controlled by a surface reaction

PDF Electrolytic recovery of zinc from zinc ash using a catalytic anode CECRI

of the zinc ash which indicates that it is in the form of zinc oxide Sulfuric acid leaching The effect of sulfuric acid concentration on the extraction of zinc is shown in Fig 2 Increase in acid concentration is found to improve the leaching of zinc up to 150gdm−3 When the sulfuric acid concentration is low the leaching efﬁciency of zinc

Leaching and recovery of zinc from leaching residue of zinc calcine

The leaching of zinc from ZLR performed via washing at 90 to 96 °C for 90 min with spent electrolyte using a MFP results in a zinc extraction rate of 97% and almost all of the zinc leached are recovered after water washing with MFP thereby avoiding any loss in the ZLR

PDF Leaching of oxidic zinc materials with chlorine and chlorine hydrate

zinc chloride solutions by use of chlorine and zinc oxide and it was likely that the leaching of zinc ferrite and other residues could be readily achieved without sub stantial extraction of the iron Below 9 chlorine at 1 atmosphere reacts with water to form solid chlorine hydrate 9 C12 g nH20 l C12 nH20 s AH = /mol [1]

Zinc recovery by chlorination leach Cyprus Metallurgical Processes

A pollution free process for the recovery of high purity zinc from zinc containing material including sulfide ores which provides for maximum conservation and re use of reagents the process consisting of chlorinating the materials either with ferric chloride or chlorine gas followed by selective removal of metals other than zinc by standard procedures such as lead chloride crystallization

Zinc vacancy mediated electron hole separation in ZnO nanorod arrays

A novel strong solvent coordination leaching method was developed to prepare surface zinc vacancies in ZnO nanorod arrays Remarkably the surface zinc vacancy rich ZnO nanorod arrays exhibit high electron hole separation efficiency and excellent photoelectrochemical performance for use as a promising candidate for the next generation of organic photoelectrochemical transistor aptasensors

Removal of chlorine from zinc sulfate solution a review

The main techniques used to remove chloride ions from zinc sulfate solution are also discussed in detail Among the methods the precipitation method using copper slag to remove chlorine is widely used and the chlorine removal rate is up to 98%

US Patent for Treatment method of chlorine containing zinc oxide

The invention discloses a treatment method of a chlorine containing zinc oxide secondary material which comprises the following steps 1 leaching the chlorine containing zinc oxide secondary material I through an acid solution 2 selectively extracting zinc through di 2 ethylhexyl phosphoric acid P204 kerosene solvent 3 implementing stripping electrolysis zinc recovery 4 repeating

Leaching of oxidic zinc materials with chlorine and chlorine hydrate

Two recovery methods have been developed for zinc ferrite residue Leaching with sulphuric acid but this only achieves 80 pct recovery of the zinc with considerable extraction of the iron into solution 2 3 The alternative process is to roast the zinc ferrite at 1200 to produce leaded Waelz oxide which can only be treated in a zinc blast furnace

Leaching of zinc compound from rubber stoppers into the PubMed

The contents of cartridges that contained greater than or equal to mg/mL of solubilized zinc were lethal to at least 20% of the mice tested those that contained mg/mL showed no lethality The problem resulted from the physicochemical properties of the rubber not the concentration of zinc used in the vulcanization process MeSH terms

US3973949A Zinc recovery by chlorination leach Google

The leaching resulted in conversion to the chlorides of % zinc over 95% lead 35 50% iron and 96% silver with the sulfur being converted to elemental sulfur which was removed in the

leaching of gold use methode chlorine

Jun 01 1992 The extraction of gold was increased by about 3 4% after addition of the chloride in the chlorine leach process Figure 3 shows the effect of leaching time on the extraction of gold The leaching rate of gold in a chlorine saturated leach solution is much higher than that of gold Get Price

Treatment Method of Chlorine Containing Zinc Oxide Secondary

The invention discloses a treatment method of a chlorine containing zinc oxide secondary material which comprises the following steps 1 leaching the chlorine containing zinc oxide secondary material I through an acid solution 2 selectively extracting zinc through di 2 ethylhexyl phosphoric acid P204 kerosene solvent 3 implementing stripping electrolysis zinc recovery 4 repeating

Typical Product Life Cycle Download Scientific Diagram ResearchGate

The present work investigated microbial leaching of zinc from ore using Acidithiobacillus ferrooxidans ATCC 14859 The ore samples consisted of 13wt% zinc were obtained from a gold mine in

Leaching and solvent extraction purification of zinc from Mehdiabad

Central composite design CCD method was used to design leaching experiments and the optimum conditions were found as follows 30% of solid fraction % sulphuric acid concentration

Selective Nickel Leaching from Nickel and Cobalt Mixed Sulfide Using

chlorine gas and 2 pressure leaching by oxygen gas 1 Chlorine leaching is a well known selective nickel leaching process with high e・ツiency which has been widely used for nickel cathode production 1 However for safe and environmentally friendly production facilities require expensive corrosion resistant materials for handling chlorine gas

プロセスにおいて、にアルカリののにおいてされる、びその

238000004070 electrodeposition Methods claims description 18 239000000654 additive Substances claims description 14 239000011780 sodium chloride Substances claims description 12 150000001875 compounds Chemical class claims description 11 150000003839 salts Chemical class claims description 11 230000000996

Leaching metallurgy Wikipedia

Leaching is done in long pressure vessels which are cylindrical horizontal or vertical or of horizontal tube form known as autoclaves A good example of the autoclave leach process can also be found in the metallurgy of zinc It is best described by the following chemical reaction 2 ZnS O2 2 H2SO4 → 2 ZnSO4 2 H2O 2 S

Life cycle assessment for waste acid treatment in zinc smelting

Lift cycle assessment LCA methodology was applied to evaluating and comparing two waste acid disposal processes in zinc smelting The results indicate that environmental impacts of gas—liquid vulcanization technologies are human toxicity abiotic depletion potential and global warming risk which are mainly caused in neutralizing— evaporating—crystallization unit and electrodialysis unit

Leaching of Cu Zn and Pb from Sulfidic Tailings Under the Use of

The design showed two optimum working regions a combination of a high NaCl level low H 2 SO 4 level and medium temperature level for lead leaching while for copper and zinc a combination of a medium high H 2 SO 4 level and a high temperature level The concentration of NaCl had only a slight impact on their leaching

Glass Ceramics and Related Materials

ILO Encyclopaedia of Occupational Health and Safety

Treatment Method of Chlorine containing Zinc Oxide Secondary Material

the invention discloses a treatment method of a chlorine containing zinc oxide secondary material which comprises the following steps 1 leaching the chlorine containing zinc oxide secondary material i through an acid solution 2 selectively extracting zinc through p204 kerosene solvent 3 implementing stripping electrolysis zinc recovery 4 …

Kinetics of Chlorine Leaching of Zinc Lead Flotation Concentrates

This report presents results of investigations on the kinetics of leaching zinc lead concentrates with chlorine The objective was to determine the kinetic order and mechanisms involved in the reactions between sphalerite zinc sulfide and galena lead sulfide with chlorine The influence of copper on the extraction rates also was studied

Chlorination leaching with sulfur extraction for recovery of zinc values

A process is disclosed for recovering zinc from a material containing zinc sulfide The zinc sulfide containing material is chlorinated in an aqueous medium to form zinc chloride and elemental sulfur A water immiscible solvent preferably inert for the sulfur is added to the aqueous chlorinating solution during the chlorination process The aqueous solution which contains zinc values is

Zinc recovery by chlorination leach Occidental Research Corporation

Zinc sulfide containing material is chlorinated in an aqueous medium in the presence of elemental chlorine and ferric/ferrous ions to form a solution containing zinc chloride iron chloride and elemental sulfur The solution is treated with elemental chlorine and alkali to precipitate the iron at about pH 3 to 4

The leaching behavior of cadmium arsenic zinc and chlorine in coal

The leaching behaviors of As Cd Zn and Cl were investigated The results showed that the elements occurring in water soluble ion exchangeable and Fe Mn oxide phases are potentially leachable whereas those in association with organic matter and silicate are less likely to be leached

Leaching of zinc and zinc alloys with chlorine and chlorine hydrate

In an attempt to overcome this problem a number of zinc alloys were leached in chlorine water mixtures over a range of temperature and chlorine concentrations The leaching rates with respect to zinc were either increased due to the galvanic affect of the alloying element or decreased by formation of a surface film

Leaching and solvent extraction purification of zinc from Mehdiabad

Central composite design CCD method was used to design leaching experiments and the optimum conditions were found as follows 30% of solid fraction % sulphuric acid concentration and the leaching temperature of 45 °C The PLS containing g/L zinc g/L iron and g/L manganese impurities was produced

leaching of gold use methode chlorine

A Method for Leaching or Dissolving Gold from Ores or The hydrometallurgical leaching of native gold from gold bearing ores or the dissolution of gold metal during the recycling of electronic and precious metal scrap is performed every day using hazardous chemicals such as sodium cyanide or aqua regia These chemicals represent health and safety risks for workers and a serious threat for the

Copper zinc water filtration Wikipedia

Copper zinc water filtration is a high purity brass water filtration process that relies on the redox potential of dissolved oxygen in water in the presence of a zinc anode and copper uses dissolved impurities within water as constituent substrate which are reduced to more physiologically inert Due to inherent limitations in bactericidal and antiprotozoal activity and

Free Quotation

Incredible has successfully built lots of crushing plants, grinding plants and metal ore dressing plants for our customers.

Get a Free Quote Now

About Us

With over 30 years of experience, we become a renowned manufacturer in the stone crushing and mineral grinding industry. Headquartered in Shanghai, China, our expansive factory spans over 120 hectares, empowering us to cater to the production demands of global customers.

Useful Links

Frequently Asked Questions
Service Updates
Community Forum
Help Desk
Terms of Use
Validate License
Privacy Policy

Solutions

Calcite mining and processing plant

Calcite mining and processing plant

9 March 2017

Dolomite stone processing plant

Dolomite stone processing plant

16 January 2018

Iron ore beneficiation plant

Iron ore beneficiation plant

9 July 2016

Sand Making Plant

Sand Making Plant

21 November 2020

New posts

how to determine p205 in ore

mining companies sweden

magnetite and hematite beneficiation

produsen ceko untuk penghancur kerucut

Mining Quarrying Integrated

small ready mixed ncrete plant

Cone Crusher Manufacturer In Germani

Limestone Crusher Plant Made In Pakistan Cost