نتایج جستجو برای: zinc recovery
تعداد نتایج: 272972 فیلتر نتایج به سال:
In this research, the selective flotation of galena and sphalerite minerals was evaluated from a pyrite-rich lead-zinc sample. An optimum mixture of selective collectors against pyrite and also organic/inorganic pyrite depressants was obtained in the flotation of galena and sphalerite by an experimental mixture design. The effect of different collectors and pH values were investigated in the ob...
28 Metal uptake is vital for all living organisms. In metal scarce conditions, a common bacterial 29 strategy consists in the biosynthesis of metallophores, their export in the extracellular medium 30 and the recovery of a metal-metallophore complex through dedicated membrane transporters. 31 Staphylopine is a recently described metallophore distantly related to plant nicotianamine that 32 cont...
The objectives of this study were to confirm the non-absorbability and the reproducibility of faecal excretion kinetics of orally administered rare earth elements, and to investigate the excretion profiles of rare earth elements and stable isotopic tracers of Fe and Zn to establish the extent to which rare earth element markers duplicate the behaviour of isotopic tracers. Two investigations wer...
This report describes a case of liver failure secondary to pancreatoduodenectomy and rapid recovery following treatment. A 68-year-old woman with cancer on the ampulla of Vater underwent surgery for pancreatoduodenectomy. The patient developed liver failure 3 months postsurgically. She was hospitalized after presenting with jaundice, hypoalbuminemia and decreased serum zinc. Computed tomography...
Heavy metal’s release without treatment poses a significant threat to the environment. Heavy metals are non-biodegradable and persistent. In the present study the ash of water hyacinth (Eichhornia crassipes), was used to remove six metals from aqueous solutions through biosorption. Results of batch and column experiments showed excellent adsorption capacity. Removal of lead, chromium, zinc, cad...
A considerable fraction of germanium is produced as a by-product in zinc metallurgy. In the conventional roast-leach-electrowin (RLE) process, most of the germanium is incorporated into the neutral leaching residue, which is the main source for germanium recovery. As the largest germanium supplier worldwide, Yunnan Chihong Zinc & Germanium Co., Ltd (Yunnan, China), recover germanium shown in Fi...
conclusions the results clarified a deep perception of participants’ experiences after disaster. the path of life recovery after disasters involves participants’ striving to achieve a comprehensive health recovery, which starts with the need for all-inclusive health recovery as a main concern; this is the motivator for a responding strategy. this strategy is participatory, and the process is pr...
copper extraction from heap 3 low grade ore at sarchechmeh is limited due to its mixed composition (copper oxide and sulphide minerals). changing this heap to a bioheap could improve the copper recovery.
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