Zinc ferrite (ZnFe2O4), one of the major forms zinc in electric arc furnace dust and leaching residue, is very difficult to chemically dissolve either acidic or alkaline solutions. It therefore necessary study extraction from achieve full recovery resources. In this paper, CaO was used degrade structure then ammonia method applied recover zinc. The thermodynamic analysis indicated that could re...

Slow strain rate tests were performed on quenched and tempered AISI 4340 steel to measure the extent of hydrogen embrittlement caused by electroplating with zinc-cobalt alloys. The effects of bath composition and pH were studied and compared with results for electrodeposited cadmium and zinc-10%nickel. It was found that Zinc-1%cobalt alloy coatings caused serious hydrogen embrittlement (EI 0.63...

The observed imbalance between the unsustainable consumption of available natural metal resources and finite deposits makes recovery recycling metals from metal-containing wastes an imperative. Here, ionic-liquid-based aqueous biphasic systems (IL-based ABSs) are proposed as efficient alternative for selective real copper acid mine drainage (AMD) effluents. ABSs composed different ILs Na?SO? we...

BACKGROUND At present, the volumes of use electric arc furnace (EAF) dust are extremely insignificant. The their formation amount to thousands tons per month. During storage, they have a negative impact on environment. same time material that has valuable composition (oxides iron, non-ferrous metals, etc.) and is promising for recycling. However, secondary zinc-containing EAF in ferrous metallu...

We measure the cytotoxicity of three metal complexes containing the 2,2'-bypyridine ligand, Cu(bpy)(NCS)(2), 1, [Cu(bpy)(2)(H(2)O)](PF(6))(2), 2, and Zn(bpy)(2)(NCS)(2), 3, toward neuroblastoma cells (SK-N-SH) and ovarian cancer cells (OVCAR-3) using two different cell assays. The cells were exposed to various concentrations of the compounds for 1 h and the percent inhibition of cell growth, I,...

A twenty year old woman presented herself for routine examination after she had taken between 440 and 5700 mg elemental zinc or an average of 2300 mg every day for four months. The most striking laboratory findings were a serum zinc level of 7760 mcg/dl, a serum copper of 8 mcg/dl and undetectable ceruloplasmin. The patient was severly anemic and showed macrocytosis and neutropenia. Other abnor...

mancozeb, a fungicide of a manganese-zinc ethylenebisdithio-carbamate (ebdc), was administered by gavage at doses of 200, 400, 600 and 800 mg/kg/day to female virgin mice for 30 days. the mice were autopsied on 31st day. mice were also treated with similar doses for a period of 30 days and the treatment was withdrawn for a further period of 30 days for reversible study. the mice were autopsied ...