نتایج جستجو برای: zinc recovery
تعداد نتایج: 272972 فیلتر نتایج به سال:
Articles you may be interested in Asymmetrical degradation behaviors in amorphous InGaZnO thin-film transistors under various gate and drain bias stresses Investigation on the negative bias illumination stress-induced instability of amorphous indium-tin-zinc-oxide thin film transistors Appl. Temperature dependence of negative bias under illumination stress and recovery in amorphous indium galli...
Zinc in pooled human serum, diluted 10-fold with demineralized water, was determined by flame atomic absorption spectrophotometry. Recoveries of zinc added to the serum were calculated by use of standards prepared in water, physiological saline, synthetic serum, or dilute HNO3 (10 ml/liter). The flow rates were essentially the same (9.1 to 9.3 ml/min) for water, diluted synthetic serum or act...
The aim of this study is the thermal recovery of manganese and zinc from a mixture of zinc-carbon and alkaline spent batteries containing 40.9% of Mn and 30.1% of Zn after a preliminary physical treatment. Separation of the metals is carried out on the basis of their different phase change temperatures, the boiling point of zinc being 906°C and 1564°C that of Mn3O4, the main Mn-bearing phase in...
The processing mineralogy characteristics of an oxidized lead-zinc ore from Sichuan were studied systematically using numerous modern instruments. Results showed that lead and zinc oxide content in the ore exceeded the minimum industrial grade, and also included a relatively high concentration of silver and iron. This ore is composed of many different minerals. Major zinc-containing minerals in...
The inhibitory actions of picrotoxin (PTX) and zinc on the GABAC receptor in acutely isolated catfish cone horizontal cells were studied and compared using the whole-cell patch clamp technique. PTX blocked the GABAC current elicited by 30 microM GABA with IC50 = 0.64 microM. Over a PTX concentration range of 1-100 microM, simultaneous application of PTX with GABA (30 microM) produced current tr...
in this work, we developed a method which combined the processes of acid-leaching, ammonium jarosite precipitating and electro-depositing to recover copper and nickel from electroplating sludge. residual sludge from an electroplating plant located in qingdao was used for acid-leaching, and more than 95% of copper, nickel, zinc, chromium and iron were extracted from the sludge. after acid-leachi...
Abstract This study takes lead-zinc flotation tailings as the research object. The process of “tailings regrinding-lead-zinc mixed floatation-activation zinc separation” is used to comprehensively recover valuable metal elements from original tailings. results show that grinding fineness -74 μm under condition m accounts for 82%; recovery rates lead and in concentrate obtained open-circuit test...
Spartina densiflora is a C(4) halophytic species that has proved to have a high invasive potential which derives from its physiological plasticity to environmental factors, such as salinity. It is found in coastal marshes of south-west Spain, growing over sediments with between 1 mmol l(-1) and 70 mmol l(-1) zinc. A glasshouse experiment was designed to investigate the synergic effect of zinc f...
BACKGROUND Oral administration of zinc or bovine whey-derived growth factor extract (WGFE) is known to reduce intestinal permeability and ameliorate methotrexate (MTX)-induced mucositis, respectively. OBJECTIVE We examined the effects of zinc, WGFE, and zinc plus WGFE on gut damage in MTX-treated rats. DESIGN Rats (n = 16/group) were fed zinc (1000 mg/kg diet), WGFE (32 mg/kg diet), zinc pl...
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