Ferric chloride leaching of Rize Çayeli Madenköy complex copper-zinc sulfide ore.

Date

1981

Author

Yüzer, H. Can

Metadata

Show full item record

Item Usage Stats

59
views

0
downloads

URI

https://hdl.handle.net/11511/9321

Collections

Graduate School of Natural and Applied Sciences, Thesis

Suggestions

OpenMETU
Core

Preparation of pnzt thin films by solution deposition and their characterization Kayasü, Volkan; Özenbaş, Ahmet Macit; Department of Metallurgical and Materials Engineering (2008) The aim of this study is to produce Nb doped PZT thin films and then investigate the effects of Nb+5 ion on the structural, dielectric and ferroelectric properties. Niobium (Nb) doped lead zirconate titanate thin films (PNZT) were produced by solution deposition with nominal compositions, Pb(1-0.5x)(Zr0.53Ti0.47)1-xNbxO3 where x = 0.00 - 0.07. Single and multi-layered films were deposited onto (111)-Pt/Ti/SiO2/Si-(100) substrates by spin coating. PZT compositions near the morphotropic phase boundary (MPB) w...
Ferrosen sübstite pirolidin türevlerinin asimetrik sentezi Doğan, Özdemir; Öner, İmdat(2003-02-01) Ferrosen sübstite pirolidin türevlerinin asimetrik sentezi dietil çinkolu ortamda kiral azometin yilidlerin elektronca fakir dipolarofillere 1,3-dipolar halkasal katılma yöntemi kullanılarak başarı ile gerçekleştirilmiştir. Kiral azometin yilidler glisin sultamın ferrosenkarboksialdehit ile su çıkararak birleşmesi ve imin tautomerleşmesi yöntemi ile oluşturulmuştur. Halkasal katılma tepkimelerinin hepsi ferrosen sübstite pirolidin türevlerini oldukça yüksek regio ve diasteroseçicilik ile makul verimlerde ol...
Ferroboron Production by Electrodeoxidation Örs, Taylan; Öztürk, Tayfur; Department of Metallurgical and Materials Engineering (2008) In this study ferroboron (Fe - 14 at %B) was synthesized in crystalline form (Fe + Fe2B) via electrodeoxidation. For this purpose, Fe2O3 and H3BO3 were mixed in suitable proportions via spex mill. The powder was cold pressed and sintered at 900 °C yielding a two phase structure Fe3BO6 and Fe2O3. The sintered pellets were electro-deoxidized in CaCl2 by applying 3.1 Volts at 850°C for 12 hours. This yielded Fe and Fe2B in proportions slightly deviating from the target composition. The chemical pathway of redu...
Synthesis of ferrocenylidene cyclopentenediones Köktürk, Mustafa; Zora, Metin; Department of Chemistry (2005) 2-Arylidine-4-cyclopentene-1,3-diones are known to be antitumor agents. Incorporation of the essential structures of such compounds with a ferrocene moiety instead of an aryl group could provide subtances with enhanced antitumor activities since some ferrocene derivatives have already proved to be active against a number of tumors. Thus, we have investigated the squarate-based synthesis of 2-ferrocenylidene-4-cyclopentene-1,3-diones. Upon thermolysis, 4-hydroxy-4-ferrocenylethynyl-2-cyclobutenones, prepared...
Ferroelektrik seramik ince filmler Özenbaş, Ahmet Macit(1998) Bu çalışmada ferroelektrik özellikli $Pb(Zr,Ti)O_3$ filmler ve tozlar sol-jel yöntemi kullanılarak elde edilmiştir. Tozlar sulu çözeltiden homojen çökeltme, filmler ise çökelme öncesi daldırma yöntemi kullanılarak üreli ortamda hazırlanmışlardır. Altlık malzemesi olarak platin kaplanmış Si-(111) dilimleri, Si dilimleri ve $\alpha-Al_2O_3$ kullanılmıştır. Filmlerin ve tozların karakterizasyon işlemleri için öncelikle XRD ve SEM/EDS kullanılmıştır. Parça boyutu, morfolojisi ve film yüzeyleri SEM çalışmalan il...

Citation Formats

H. C. Yüzer, “Ferric chloride leaching of Rize Çayeli Madenköy complex copper-zinc sulfide ore.,” Middle East Technical University, 1981.