CN103397180A - Method for recovering tellurium, …
The invention aims at providing a method for recovering tellurium, bismuth, antimony, and copper from a complex material. The method comprises the steps that: the complex material is added into a sodium hydroxide solution according to a solid-liquid ratio; a temperature and a stirring time are controlled; when a reaction is finished, bismuth, antimony and copper slag and tellurium leaching ...
method recovering tellurium - V W Automation S.A.
method recovering tellurium. Home / method recovering tellurium. method recovering tellurium. Platinum . Platinum is a stone element with symbol Pt and atomic number 78 It is a dense malleable ductile highly unreactive precious gray-white transition metal Its name is derived from the Spanish term platina which is literally translated into ...
US4288423A - Method of recovering metallic …
A method of recovering metallic tellurium from a residue dust containing a major amount of lead oxide, a minor amount of tellurium oxide, and a minor amount of iron oxide which comprises the steps of introducing the residue into a leach tank containing water, sulphuric acid and ferric sulphate, the sulphuric acid being present in the leach tank in an amount equal to about 5% to 10% by weight ...
method recovering tellurium - Birthing Naturally
Tellurium, Its Resourcefulness and Recovery ... recovering tellurium from copper an ... method may be employed for dissolv. Get Price; Patent US4288423 Method of recovering … A method of recovering metallic tellurium from a residue dust containing a major amount of lead oxide, a minor amount of tellurium oxide, and a minor amount of iron ...
Method of recovering metallic tellurium - Hulbert …
08-09-1981 · A method of recovering metallic tellurium from a residue dust containing a major amount of lead oxide, a minor amount of tellurium oxide, and a minor amount of iron oxide which comprises the steps of introducing the residue into a leach tank containing water, sulphuric acid and ferric sulphate, the sulphuric acid being present in the leach tank in an amount equal to about 5% to 10% by weight ...
JP2010162453A - Method for recovering tellurium …
[Object] To collect tellurium from a tellurium-contaminated soil by plant mining or plant extraction and decontamination. A method for recovering tellurium from soil containing tellurium, the accumulating tellurium in excess of 4 mg / kg of ground tissue on a dry weight basis, usually in the range of about 4 mg to 20 mg. cultivating under conditions sufficient to allow a sativa plant or at ...
JPS627609A - Method for recovering tellurium …
PURPOSE: To recover TeO 2 with high efficiency by adjusting the pH of extracted liquid obtd. by treating anode slime with mineral acid to adjust the pH to a specified value, and adding a specified amt. of sodium sulfite to form precipitate. CONSTITUTION: Anode slime is deposited on the surface of an insoluble anode when tellurium is obtd. by electrowinning of electrolytic liquid of sodium ...
US2990248A - Method for recovering selenium …
Method for recovering selenium and tellurium values Download PDF Info Publication number US2990248A. US2990248A US576774A US57677456A US2990248A US 2990248 A US2990248 A US 2990248A US 576774 A US576774 A US 576774A US 57677456 A US57677456 A US 57677456A US 2990248 A US2990248 A US 2990248A Authority US United States
Recovering Cadmium & Tellurium from Scrap
Precipitating Tellurium from Leach Solution by pH Adjustment. While oxygen-pressure leaching resulted in preferential dissolution of cadmium, codissolved tellurium needed to be removed from solution before purified cadmium could be recovered. One method to remove the tellurium is reduction using CdTe.
(PDF) Hydrometallurgical Recovery of Tellurium
leaching method. The recovery of tellurium from gold ore concentrate was much ... A novel process of tellurium recovering from high tellurium-bearing materials by alkaline sulfide leaching ...
method for recovering vanadium from vanadium
Method of recovering valuable metals from waste materials, particularly from spent petroleum cracking catalysts. Get Price; Patent US6235253 Recovering vanadium ...
Recovery of tellurium from high tellurium-bearing ...
01-08-2017 · A novel process of tellurium recovering from high tellurium-bearing materials was proposed. • Tellurium was transformed to soluble thiotellurate (TeS 4 2 −) when the tellurium-bearing material dissolves in Na 2 S solution.. The thiotellurate was decomposed by sodium sulfite with precipitation of elemental tellurium.
Method of extracting Te and bismuth oxide and …
02-10-2012 · A method of extracting Te and bismuth oxide and recovering byproduct comprises: leaching raw materials with a Te content of ≧1.8% by utilizing a leaching system containing H 2 SO 4 ,
SEPARATION OF TELLURIUM BY SOLVENT …
24-04-2014 · A method for separating tellurium includes separating and recovering tellurium (Te) from a dissolved solution containing the tellurium using a solvent extraction by an extractant, which contains one selected from a group consisting of tributyl phosphate (TBP), tris(2-ethylhexyl) phosphate (TEHP) and a combination thereof.
The method of obtaining elemental tellurium
The invention relates to a method for producing elemental tellurium and can be used to produce isotopes of tellurium used in biomedical research and PR is (EN 95106246, 01 In 19/02, publ. 20.08.1996, bull. No. 23), according to which the receiving element tellurium lead to …
method of recovering metallic tellurium - …
Dec 02 2014 · The method may separate and recover the tellurium as a highpriced metallic element from a material such as a Bi 2 Te 3based waste thermoelectric material which contains not only the tellurium but also other metallic elements simply and economically using a solvent extraction whereby the tellurium with high yield and high purity can be separated recovered and recycled
Method for recovering rhodium - JX Nippon …
16-08-2011 · A method for recovering rhodium in a yield of 98.7% or higher comprising: adding formic acid to ammonium hexachloro rhodate solution to reduce the rhodate, recovering reduced rhodium as rhodium black, and; calcining the rhodium black under hydrogen atmosphere without water washing to obtain rhodium sponge.
Preparation of high-purity tellurium powder by ...
The crude tellurium powder was treated by H2O2 oxidation for 2.0 h at pH 2.5 when adding 50 ml H2O2 (30 %) per 100 g raw material, a tellurium recover rate around 91 % is achieved.
ANION EXCHANGE METHOD FOR SEPARATING …
osti.gov journal article: anion exchange method for separating tellurium and heavy metals.
Method of extracting tellurium - russianpatents.com
The method for extracting tellurium waste from the production of cadmium telluride or zinc telluride, including the decomposition of waste, characterized in that the decomposition is carried out in the melt of sodium hydroxide or potassium hydroxide with subsequent cooling of the melt, dissolve in aqueous ammonia solution and filtering the solution to obtain a precipitate of pure tellurium.