process for nickel and cadmium separation

  • Home
  • process for nickel and cadmium separation

PAPER OPEN ACCESS Related content Separation and …

3, the technique process could be divided into 3 stages. In the 1st, the copper in feed solution could be extracted totally by controlling the pH at about 2.0, while other ions were hardly extracted. In the 2nd, nickel is extracted at a pH of about 5.0, and finally zinc and cadmium at a pH of about 6.5.

Read More

.. STUDY OF PROCESS VARIABLES ASSOCIATED WITH ...

NEGATIVE PROCESS VARIABLES A low cadmium nitrate solution specific gravity is preferred ... capability. During this phase, the deliverable items of separation, positive and negative plates will be prepared. Also, 20 nickel-cadmium ... desirable in a nickel-cadmium cell plaque; this included high strength and ...

Read More

Cadmium Distillation-Metal Distillation Separation

Separation Process and Method. Solid and Liquid Separation. Copper Blast Furnace Smelting. ..., thallium and zinc, etc. Cadmium from spent cadmium-nickel battery is also an important source. Wherever the cadmium is from, the cadmium material has to be refined for recycling due to its hypertoxicity, either in oxide or salts.

Read More

US5728854A - Method for separating iron from nickel and/or ...

A method for separating iron for nickel and/or cadmium contained in a battery waste is composed of a first step in which the spent batteries are crushed and calcined. The calcined pieces are mixed with an acetic acid aqueous solution before acetic acid and water are removed by evaporation or distillation so as to produce a residue containing metallic acetates.

Read More

Nickel-cadmium battery recycling through the INMETCO{reg ...

Jul 01, 1995· Several typical methods for the recovery and separation of cadmium and nickel from Ni- and Cd-bearing wastes are briefly described. Laboratory- and large-scale experiments were respectively developed to improve the processes for the recovery and treatment of cadmium and nickel. A high degree of purity of recovered cadmium was obtained.

Read More

US2915388A - Separation of nickel and cobalt - Google Patents

US2915388A US697329A US69732957A US2915388A US 2915388 A US2915388 A US 2915388A US 697329 A US697329 A US 697329A US 69732957 A US69732957 A US 69732957A US 2915388 A US2915388 A US 2915388A Authority US United States Prior art keywords nickel zinc cobalt liquor solution Prior art date Legal status (The legal …

Read More

A REVIEW OF THE APPLICATION OF MOLECULAR …

highly effective and economic in the selective separation and extraction of cobalt, nickel, copper and iron from leach, process and waste streams. ... nickel, iron, cadmium, and others. In some cases cobalt is also extracted and purified, producing a high value, high purity ... Nickel Laterite Ore Process Stream With Separate

Read More

Separation of cadmium(II) from spent nickel/cadmium ...

Jan 26, 2010· Experiments were conducted to investigate the separation of cadmium(II) from spent nickel/cadmium battery by emulsion liquid membrane. Liquid membrane mainly consisted of a diluent (kerosene), a surfactant (Span 80), a carrier (di(2‐ethylhexyl) phosphoric acid, D2EHPA) and an internal phase (sulfuric acid).

Read More

Liquid–liquid extraction - Wikipedia

For instance, if a process is fed with a mixture of 1:9 cadmium to indium, and the product is a 1:99 mixture of cadmium and indium, then the decontamination factor (for the removal of cadmium) of the process is 0.11 / 0.01 = 11. Slopes of graphs. The easy way to work out the extraction mechanism is to draw graphs and measure the slopes.

Read More

(PDF) Recycling of spent nickel-cadmium battery using a ...

Nickel-cadmium (Ni-Cd) batteries contain a large amount of valuable metals that are worth recovery. ... In this study, a thermal separation process (TSP) was …

Read More

SEPARATION OF COBALT(II), NICKEL(II), ZINC(II) AND …

metal ions change for the worse selectivity of separation process. Especially zinc(II) and cadmium(II) ions decreased five-fold selectivity of ion separation process. keywords: zinc(II), cobalt(II), nickel(II) cadmium(II); polymer inclusion membranes; solvent extraction; 1-decylimidazole 1. INTRODUCTION Cobalt, nickel, zinc and cadmium are ...

Read More

US7364717B2 - Process for converting nickel to nickel ...

A preferred embodiment of the present invention provides a process for making nickel sulfate by converting nickel metal into nickel sulfate, which may be converted to nickel hydroxide. Nickel metal is dissolved in sulfuric acid and oxygen containing gas is introduced to produce a nickel sulfate solution having nickel sulfate and water as illustrated in the following chemical equation.

Read More

Adsorption of Cu(II), Zn(II), Ni(II), Pb(II), and Cd(II ...

The adsorption of copper(II), zinc(II), nickel(II), lead(II), and cadmium(II) on Amberlite IR-120 synthetic sulfonated resin has been studied at different pH and temperatures by batch process. The effects of parameters such as amount of resin, resin contact time, pH, and temperature on the ion exchange separation have been investigated.

Read More

Simultaneous Removal of Nickel and Cadmium During the Cold ...

Jan 07, 2020· The cementation reaction of nickel and cadmium at pH 3.5–4.5 had the best performance for both impurities. 4. Copper sulfate did not improve the efficiency of nickel and cadmium removal, and even with increasing Cu 2+ ions in the solution, the rate of nickel and cadmium cementation reaction decreased significantly. Hence, the expenses can be ...

Read More

Separation of cadmium(II) from spent nickel/cadmium ...

Feb 01, 2010· Experiments were conducted to investigate the separation of cadmium(II) from spent nickel/cadmium battery by emulsion liquid membrane. Liquid membrane mainly consisted of a diluent (kerosene), a surfactant (Span 80), a carrier (di(2‐ethylhexyl) phosphoric acid, D2EHPA) and an internal phase (sulfuric acid). Main research effort was focused on the …

Read More

US4634580A - Process for the purification of wet-process ...

A process for the removal of cadmium contained in wet-process phosphoric acid by flotation by means of a cadmium-collector anionic surface active agent and an injected gas in the presence of other impurities including iron and possibly uranium which is characterized in that, in order to improve the removal of cadmium, the iron contained in the phosphoric acid in the trivalent …

Read More

New flowsheet for the recovery of cadmium, cobalt and ...

Jun 01, 1999· A separation process based on two circuits can be proposed: (1) the cadmium separation circuit in which cadmium is extracted with DEHPA and (2) the cobalt separation circuit where cobalt and nickel are separated with Cyanex 272.

Read More

Equilibrium characteristics for the extraction of cobalt ...

Ataollah Babakhani, Fereshteh Rashchi, Alireza Zakeri, Ehsan Vahidi, Selective separation of nickel and cadmium from sulfate solutions of spent nickel–cadmium batteries using mixtures of D2EHPA and Cyanex 302, Journal of Power Sources, 10.1016/j.jpowsour.2013.08.063, 247, (127-133), (2014).

Read More

(PDF) Selective separation of nickel and cadmium from ...

Experimental procedure separation of zinc and manganese in sulfate media [20]. Although Cyanex 302 offers good separation of cadmium and Stock solution of nickel (II) and cadmium (II) with a concen- nickel, it is relatively expensive to be used commercially.

Read More

A Novel Process for Recovering Valuable Metals from Waste ...

Nov 02, 2009· The environment is seriously polluted due to improper and inefficient recycling of waste nickel−cadmium (Ni−Cd) batteries in China. The aim of this work is aimed to seek an environmentally friendly recycling process for resolving the negative impacts on environmental and human health resulting from waste Ni−Cd batteries. This work investigates the …

Read More

Cadmium Mining | Processing Equipment | Flow Chart | Cases ...

Cadmium is used to make low-temperature melting alloys, such as solder and Wood's Metal for indoor sprinkler systems. The latter is an alloy of 50%Bi, 25%Pb, 12.5% Sn, and 12.5%Cd which melts at about 160 degrees Fahrenheit, the temperature of a very hot shower. Cadmium compounds are used both in black and white and color television tubes.

Read More

Method for separating iron from nickel and/or cadmium from ...

Aug 06, 1996· There are various methods for separation and recovery of nickel and cadmium from the spent nickel-cadmium batteries. The method disclosed in the U.S. Pat. No. 4,401,463 is a case in point. The method involve pyrolysis, which is made to occur by raising the temperature inside the furnace from about 100° C. to an initial temperature of about 400 ...

Read More

A novel process for recovering valuable metals from waste ...

The environment is seriously polluted due to improper and inefficient recycling of waste nickel-cadmium (Ni-Cd) batteries in China. The aim of this work is aimed to seek an environmentally friendly recycling process for resolving the negative impacts on environmental and human health resulting from waste Ni-Cd batteries.

Read More

Recycling of spent nickel–cadmium battery using a thermal ...

Sep 20, 2017· The main composition of the positive electrode and negative electrode are Ni (304,000 mg/kg) and Cd (531,000 mg/kg), respectively. The other components are mainly composed of Fe. In this study, a thermal separation process (TSP) was used to recover valuable metals from spent Ni-Cd batteries with limestone and cullet additives.

Read More

Flotation-separation and ICP-AES determination of ultra ...

A rapid flotation method for separation and enrichment of ultra trace amounts of copper(II), cadmium(II), nickel(II) and cobalt(II) ions from water samples is established. At pH 6.5 and with sodium dodecylsulfate used as a foaming reagent, Cu2+, Cd2+, Ni2+ and Co2+ were separated simultaneously with 2-aminocyclopentene-1-dithiocarboxylic acid ...

Read More

A new approach to zinc–nickel separation using solution ...

Jan 12, 2016· The present investigation involves the separation of zinc and nickel from a sulfate solution using the acidic leaching of zinc plant residue after cadmium removal step as precursor (42.88 wt% Zn, 8.50 wt% Cd and 2.33 wt% Ni). Separation of nickel from the solution was done by pouring it into a strong alkaline sodium hydroxide solution due to precipitation of nickel …

Read More

Process for the recovery of cadmium and other metals from ...

A process for the selective recovery of cadmium, molybdenum, zinc, nickel and other metal values from wet process phosphoric acid and other acidic to slightly basic carrier solutions, wherein the metal-bearing solution is contacted with an organophosphene extractant to precipitate the metal values for subsequent separation from the solution.

Read More

US4511541A - Process for the recovery of cadmium and other ...

A process for the selective recovery of cadmium, molybdenum, zinc, nickel and other metal values from wet process phosphoric acid and other acidic to slightly basic carrier solutions, wherein the metal-bearing solution is contacted with an organophosphene extractant to precipitate the metal values for subsequent separation from the solution.

Read More

Separation of Nickel(II) and Cadmium(II) Ions with Ion ...

Separation of nickel(II) and cadmium(II) ions from sulphate solution has been studied. The solutions of Ni(II) and Cd(II) have been treated with different exchange resins: Lewatit OC …

Read More

US4405570A - Removal of dissolved cadmium and copper from ...

A process for selectively removing ions of copper and/or cadmium from a sulphate solution containing nickel and/or cobalt values. The solution is treated at a temperature in the range of from about 85° to about 95° C. and at a pH in the range of from about 4.5 to about 5.5 with hydrogen sulphide to precipitate copper and/or cadmium ions as copper and/or cadmium …

Read More

Separation of Nickel(II) and Cadmium(II) with Ion-Exchange ...

Apr 09, 2012· Separation of nickel(II) and cadmium(II) ions from sulphate solution has been studied. The solutions of Ni(II) and Cd(II) have been treated with different exchange resins: Lewatit OC-1026, Lewatit TP-207, and Lewatit MonoPlus SP 112. Data obtained from the ion-exchange process was compared with data from the supported liquid membrane experiment.

Read More

The separation and recovery of copper(Ⅱ), nickel(Ⅱ ...

Abstract: We studied the separation and recovery of copper(Ⅱ), nickel(Ⅱ), cobalt(Ⅱ), zinc(Ⅱ), and cadmium(Ⅱ) from magnesium and calcium, using synergistic solvent extraction (SSX) in a typical hydrometallurgical waste solution. A mixture of Versatic 10 acid and Mextral 984H, diluted with Mextral DT100, was used to obtain fundamental data on pH and distribution isotherms, as …

Read More

MEAB: Projects

The NIFE process Nickel and cadmium recovery from accumulator scrap. (Info 05-2010) The UDDAMAR process A pyro/hudro-metallurgical concept for metal waste recovery. (Info 06-2010) The Gullspang process Separation of iron, cobalt and nickel from scrap alloy by solvent extraction - electrochemical procedure. (Info 07-2010) The SOTEX process ...

Read More