Tiosulfat sebagai larutan pelindian emas pertama kali dipelajari pada tahun 1979 untuk menemukan alternatif sianida dan merkuri yang banyak digunakan dalam industri ekstraksi meskipun berdampak negatif bagi lingkungan. Sampel bijih adalah asli dari Bolaang Mongondow, Sulawesi Utara. Berdasarkan pengamatan Mikroskop Optik karakterisasi LIBS, terdapat senyawa pirit merupakan salah satu karakteris...

As a pre-treatment method of refractory gold ore, carbonaceous matter (C-matter) flotation was investigated with multi-stage by rougher, scavenger, and cleaner stages. Different dosages kerosene MIBC (4-Methyl-2-pentanol) were applied the optimum dosage selected testing in each stage. With combination stage, four circuit designs suggested, which single-stage rougher (R), rougher-scavenger (R+S)...

Obtaining detailed and precise information from a classified refractory gold ore has been long-standing challenge in mineral processing process mineralogy. Although the concept of diagnostic leaching extensively addressed literature, very little is available linking this approach with current advanced characterization techniques such as automated The present research study aims to characterize ...

silica refractory bricks are used especially in the metallurgical industries, due to desirableproperties such as particularly their high melting point and their rigidity and strength at hightemperatures. in this research, different amount of sic were added to silica refractory containingdifferent binders such as borax, boric acid, calcium nitride, sodium tri poly phosphate, sodiumhexametaphosph...

background: the main purpose of the current study was to determine the effect of treating helicobacter pylori (hp) infection on seizure frequency in patients with refractory epilepsy. methods: a small sample of adult patients above 18 years of age with a diagnosis of refractory epilepsy was studied at the outpatient epilepsy clinic at shiraz university of medical sciences, from january 2009 thr...

abstract despite sophisticated conventional medical treatment and the continued development and improvement of coronary revascularization modalities in recent years, a significant number of patients still suffer from refractory angina pectoris and cannot be successfully managed. advances in therapeutic options have led to an increase in the average of life expectancy even in such no-option pati...

hypereosinophilic syndromes were a group of divergent disorders united by overproduction of eosinophils and the several organ damages ascribed to this persistent eosinophilia. among all the presenting symptoms, gastrointestinal symptoms were the least common. we were reporting a 21 year old man with a 2 year history of refractory ascites, hepatomegaly, portal and hepatic veins thrombosis and cu...

Cardiovascular diseases represent one of the most frequent worldwide; among these, lower limb ischemia is a threatening condition, which can lead to permanent disability if not promptly and correctly diagnosed treated. A patient’s clinical evaluation diagnostic imaging (e.g., color-Doppler ultrasound, computed tomography angiography (CTA), magnetic resonance (MRI)) are mandatory carefully asses...

The aim of this study is to report a case of gold shunt surgery for uncontrolled, low-tension glaucoma with good central vision, after having a previously failed trabeculectomy and tube shunt surgeries. The patient was receiving maximum medical glaucoma therapy of four different types with intraocular pressure of 17 mm Hg prior to gold shunt surgery. Five years later, intraocular pressure is we...

A defined mesophilic consortium including an iron oxidizing bacterium and a sulfur oxidizing bacterium was constructed to evaluate its ability for bioleaching a flotation concentrate from Andacollo mine in Neuquén, Argentina. Experiments were performed in shake flasks with a pulp density of 10% (w/v), using a basal salt medium containing ferrous iron at pH 1.8. The leaching solutions were analy...