recovery indium effect

(PDF) Recovery of indium from LCD screens of discarded ...

Therefore, due to the limited availability of indium and the fact that LCD screens are increasingly used in consumer goods, com- bined with the continued increase in the generation of this waste (Lim and ung, 2010), it is necessary to recycle electronic items and recover the indium. The recovery of indium from LCD screens is economically ...

Effect of leukocyte antibodies and HLA matching on the ...

Effect of leukocyte antibodies and HLA matching on the intravascular recovery, survival, and tissue localization of 111-indium granulocytes. J. McCullough, M. Clay, D. Hurd, K. Richards, C. Ludvigsen, L. Forstrom ... Granulocytes from donors to be studied were labeled with 111-indium and injected. Then the intravascular recovery and survival or ...

Recovery of indium from the etching solution of indium tin ...

The etching waste solution from the indium‐consuming fabrication processes is considered as the viable resource for indium recovery. The extraction equilibrium of indium(III) from a hydrochloride acid solution using di‐(2‐ethylhexyl) phosphoric acid (D2EHPA) as an extractant and dissolved in kerosene by solvent extraction was studied.

CN104047023B - A method for producing zinc from indium ...

A process for producing zinc from indium-cadmium alloy ingot and recovering indium, cadmium method, wherein the method comprises the steps of: (1), weakly acidic electrolyzed: containing In0.1~1.0%, Cd0. 2~2.0%, after Zn96~99% zinc metal alloy cast as an anode, zinc sulfate - lithium mixed solution of sulfuric acid in the electrolytic system ...

Recovery Of Indium From Waste Liquid Crystal Display (LCD ...

A three-step, batch type recovery method was developed to produce indium powders from dilute indium chloride solutions prepared by dissolving indium tin oxide (ITO) electrodes from waste liquid crystal display (LCD) panels in concentrated hydrochloric acid (HCl) solutions.

The Effect of Bismuth, Antimony, or Indium on the Thermal ...

The Effect of Bismuth, Antimony, or Indium on the Thermal Fatigue of Hi Rel PB free Solder Alloys. HongWen Zhang, Indium Corporation, Jie Geng. Summary: Although SnAgCu (SAC) Pb-free solder alloys typically have better fatigue life than traditional eutectic SnPb solder, their fatigue reliability is limited at higher operating temperatures. In response to the need for higher temperature ...

THE RECOVERY OF INDIUM FROM MINING WASTES

Figure 5.3 Grade vs recovery curve for indium in the sinks fraction of the ferrite sample .... 96 Figure 5.4 Grade vs. recovery of indium in the heavies fraction of the tailings sample ..... 98 Figure 5.5 Grade vs. recovery of indium in the heavy minerals fraction of the jarosite

Indium: Uses, Side Effects, Interactions, Dosage, and Warning

Side Effects & Safety Indium might be UNSAFE. Taking indium by mouth might result in damage to the kidneys, heart, liver, and other organs. Breathing in indium might irritate the lungs.

(PDF) Extraction of indium from zinc plant residues ...

When initial sulfuric acid concentration is below 100 g/ L, acid concentration has significant effect on recovery of indium; when acid concentration exceeds 100 g/L, it has slight effect on the recovery of indium. So, the best result is obtained when the ini- tial sulfuric acid concentration is 100 g/L. 3.1.2.

Indium8.9HF Solder Paste by Indium Corporation

Indium8.9HF Solder Paste is part of Indium Corporation's family of high-performance, lead-free, no-clean solder pastes. The series was designed to provide multi-faceted performance characteristics and tailored to every specific manufacturing process. Each paste in the series optimizes print performance and mitigates common defects faced by manufacturers of personal electronics.

Recovery from ultraviolet-induced threshold voltage shift ...

The effect of short-duration ultraviolet (UV) exposure on the threshold voltage (V{sub th}) of amorphous indium gallium zinc oxide thin film transistors (TFTs) and its recovery characteristics were investigated. The V{sub th} exhibited a significant negative shift after UV exposure. The V{sub th ...

Preliminary Investigation of Effects on the Environment of ...

• Indium-113M, with a half-life of 100 minutes, can easily be generated from tin-113, and if it is carrier free, toxicity effects are re- (23) duced since less indium is utilized. Intravenously injected ionic indium- (24) 113M becomes bound to the plasma protein, transferrin.

Recovery of indium from liquid crystal displays ...

Mar 10, 2016· In this frame, we carried out treatments aimed at the recovery of indium by means of cementation with zinc powder from a solution produced through a cross-current leaching of LCDs. The highest indium recovery, equal to 99.8% was achieved at pH 2 when a relatively high concentration of zinc was used (100 g/L).

Recovery of Indium from End-of-Life Liquid Crystal Displays

Recovery of Indium from End-of-Life Liquid Crystal Displays Jiaxu Yang Industrial Materials Recycling Department of Chemical and Biological Engineering Chalmers University of Technology Abstract From the time of its invention in the 1970s, liquid crystal displays (LCD) have slowly become

Research on the effect of alkali roasting of copper dross ...

The amount of sodium hydroxide had an significant effect on the leaching rate of indium, and the leaching of indium increased with the increase of the amount of sodium hydroxide, and the leaching rate of indium was obviously higher than that of copper dross blank roasting and acid leaching. ... Bao Xiaobo 1981 Recovery of copper by ammonia ...

Temperature dependence of negative bias under illumination ...

Temperature dependence of negative bias under illumination stress and recovery in amorphous indium gallium zinc oxide thin film transistors Md Delwar Hossain Chowdhury,1 Piero Migliorato,1,2 and Jin Jang1,a) 1Advanced Display Research Center and Department of Information Display, Kyung Hee University, Seoul 130-701, South Korea

Optimization of Indium Recovery and Separation from LCD ...

Indium tin oxide (ITO) is currently the choice of electrode material in liquid crystal displays (LCDs). D2EHPA is known to be an extractant that can be used to selectively recover indium from 1 M sulfuric acid. In order to optimize the extraction and separation of indium from LCD waste, the effects of pH, temperature, time, and extractant concentration on the distribution ratios of In(III) and ...

Use of and Occupational Exposure to Indium in the United ...

Indium use has increased greatly in the past decade in parallel with the growth of flat-panel displays, touchscreens, optoelectronic devices, and photovoltaic cells. Much of this growth has been in the use of indium tin oxide (ITO). This increased use has resulted in more frequent and intense ...

Recovery of Indium from Indium/Tin Oxides Scrap by ...

Since indium is far more reactive over the wide range of pH in solution compared to tin, indium can be successfully recovered with high purity, over 99.999% purity and high recovery by this method. The effect of pH, temperature and oxidation potential on the effective recovery of indium and tin are discussed and salient results are presented.

The Effect of UV treatment on the recovery characteristics ...

Sep 27, 2012· Abstract. We investigated the effects of ultraviolet (UV) treatment on the negative bias illumination stress (NBIS) and the recovery characteristics of amorphous indium-gallium-zinc-oxide (a-IGZO)-based transparent thin-film transistors (TTFTs).

Chemical Technology and Economics in Environmental ...

----- PREFACE This report presents the results of Task II of a project entitled "Chemical Technology and Economics in Environmental Perspectives," per- formed by Midwest Research Institute (MRl) under Contract No. 68-01-3201 for the Office of Toxic Substances of the …

RECOVERY OF INDIUM FROM In2O3 AND LIQUID CRYSTAL ...

Fig.1 shows the effects of temperature and Cl/In molar ratio on In recovery from In2O3 under the flow of (a) N2 and (b) air. In both cases, the degree of In recovery increased with increasing Cl/In molar ratio at any temperature. The degree of In recovery was 98.7 and 96.6 % …

Selective recovery of indium via continuous counter ...

Apr 01, 2019· Conventional batch foam separation for indium recovery3.1.1. Effect of combination of anionic/nonionic surfactants in CON mode. The screening tests on anionic organo phosphate surfactants among the commercial production were carried out for selective In(III) recovery in CON mode, ...

Recovery of indium by acid leaching waste ITO target based ...

Request PDF on ResearchGate | Recovery of indium by acid leaching waste ITO target based on neural network | The optimized leaching techniques were studied by technical experiment and neural ...

WO1998029902A1 - Method for restoring the resistance of ...

A method for counteracting increases in resistivity encountered when Indium Oxide resistive layers (18) are subjected to high temperature annealing steps during semiconductor device fabrication. The method utilizes a recovery annealing step which returns the Indium Oxide layer (18) to its original resistivity after a high temperature annealing step has caused the resistivity to increase.

Recovery of indium ions by nanoscale zero-valent iron ...

Indium and its compounds have plenty of industrial applications and high demand. Therefore, indium recovery from various industrial effluents is necessary. It was sequestered by nanoscale zero-valent iron (nZVI) whose size mainly ranged from 50 to 70 nm.

Recovery and Concentration of Precious Metals from …

Recovery and Concentration of Precious Metals from Strong Acidic Wastewater Hisayoshi Umeda1 ; 2*, Atsushi Sasaki, Kunihiko Takahashi, Kazutoshi Haga 1, Yasushi Takasaki3 and Atsushi Shibayama 1Faculty of Engineering and Resource Science, Akita University, Akita 010-8502, Japan 2Yokohama Metal Co., Ltd., Sagamihara 252-0132, Japan 3International Center for Research and Education on …

PHASE TRANSFORMATIONS AND SHAPE MEMORY EFFECT IN INDIUM …

T1 - PHASE TRANSFORMATIONS AND SHAPE MEMORY EFFECT IN INDIUM LEAD ALLOYS. AU - Koyama, Yasumasa. AU - Ukena, Toshiyasu. AU - Nittono, Osamu. PY - 1982/9. Y1 - 1982/9. N2 - The characteristic features of phase transformations are investigated and compared with those of other indium-rich alloys.