doi x treatment of platinum flotation platinum
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Characterizing and recovering the platinum group minerals ...
Second, the sample preparation techniques for mineralogy studies are presented, followed by a brief introduction of instruments used for characterizing PGMs. Third, the mineralogy of specific ores amenable to gravity, flotation and the flowsheet for recovering platinum group minerals in several mills of interest are discussed in details.
Tislelizumab Plus Chemotherapy vs Chemotherapy Alone as ...
· A phase 2 study of tislelizumab in combination with platinum-based chemotherapy as first-line treatment for advanced lung cancer in Chinese patients. Lung Cancer . 2020;147:259-268. doi: 10.1016/j.lungcan.2020.06.007 PubMed Google Scholar Crossref
Frontiers | Flotation Separation of Diaspore and Kaolinite ...
· Sodium oleate (NaOl), a collector in diaspore flotation, has been widely used for more than 30 years, while its low selectivity becomes an issue under today''s process requirement. This study introduced tert dodecyl mercaptan (TDM) together with NaOl as a mixed collector to improve selectivity in diaspore flotation. We found that using the mixed collector of NaOl/TDM (total concentration 0.1 mM ...
Treatment beyond four cycles of first line Platinum and ...
· Dose intensity and dose density of first line Platinum and Etoposide (PE) do not influence Overall Survival (OS) of Small Cell Lung Cancer (SCLC) patients. The effect of treatment length, however, remains unclear. Current guidelines recommend treating beyond 4 cycles -up to 6-, in patients that respond to and tolerate systemic treatment. This has led to variable practice both in …
High-throughput production of cheap mineral-based two ...
· Platinum (Pt) is the most efficient electrocatalyst for HER, but its abundance is six orders of magnitude lower than aluminum, the most abundant metal 4,5, making it extremely expensive (ten ...
Sulphate Removal from Flotation Process Water Using Ion ...
important approaches for separating platinum group metals such as platinum, palladium and rhodium from solutions instead of using various extraction methods . For removal of heavy metals such as Hg, Cd and Pb from other co-existing ions in acid mine drainage solution, strong anion-exchange resin was used as a synthesis with metal salts .
The Open Chemical Engineering Journal
ions at pH 8.9 . The latter technique has been developed in continuous flotation columns or in other pilot or industrial devices for processing of UG2 ore in South Africa [5, 16 - 18] to remove the major chromite-containing part of the ore, in view to recovering platinum group elements. Guar gum was …
Use of selected industrial waste materials in concrete ...
· Red mud, due to its high aluminum, iron, and silicon content, has been suggested as a cheap adsorbent for the removal of toxic metals as well as for water and wastewater treatment and engineering applications [ 14-17]. In the previous study, the potential use of red mud for immobilization of copper flotation waste was investigated.
1107 1305 1308 1315 1315 1315 1315 1315 1319 1319 1319 1319 1325 1325 1325 KG. Harding, D Dheda, CM. Sheridan, N. McIntyre, 2015. Water accounting methods for platinum
Recent advances in the optimization of dispersed platinum ...
· Highly dispersed platinum catalysts provide new possibilities for industrial processes, such as the flameless combustion of methane, propane, or carbon monoxide, which has …
Process development options for electronic waste ...
indium, magnesium, niobium, platinum group metals, rare earth elements, silicon and tungsten. This list contains those of most relevance to WEEE, and although the 2017 listing (European Commission, 2017b) adds further metals to the list, these are not generally found …
Treatment of Platinum Flotation Products | Johnson Matthey ...
· Rougher flotation recovered 96 pct of the platinum and 86 pct of the palladium in a concentrate assaying 1.7 oz/ton Pt and 4.7 oz/ton Pd. Cleaning the rougher concentrate with a reagent suite containing a water-soluble polymer gangue depressant yielded a concentrate that had approximately twice the platinum and palladium content of the rougher ...
Synthesis. Although the concept and practical use of metal chelation is common, chelation of inert metals, such as platinum, has been rarely reported and the yield was extremely low. To produce chelated platinum solution, tetraammonium EDTA, NTA, DTPA or HEDTA type chelating agent was mixed with platinum or platinum chemical compounds. The resulting chelated platinum would be in 4 forms:
Mineralogy Characteristic Study and Exploration on the ...
· The separation and enrichment can be targeted to enrich in fly ash and reduce the cost of leaching and recovering of fly ash. Regarding their different properties, the single-component separation was used to obtain uncompleted burned carbon, glass microbeads, minerals, and other characteristic components from the ash. Also, the mineral composition of each component was analyzed by electron ...
Phase III Trial of Cisplatin Plus Gemcitabine With Either ...
· Patients were randomly assigned to receive cisplatin 80 mg/m 2 and gemcitabine 1,250 mg/m 2 for up to six cycles plus low-dose bevacizumab (7.5 mg/kg), high-dose bevacizumab (15 mg/kg), or placebo every 3 weeks until disease progression. The trial was not powered to compare the two doses directly. The primary end point was amended from overall survival (OS) to progression-free survival …
(March 14, 1973)
procedures and methods of data treatment were discussed in more detail paper . A calibrated platinum resistance thermometer was used to interpolate the temperature according to the International Practical Temperature Scale of 1968 [25, 26] above 13.81 K. Below 13.81 K the platinum
Genetic Polymorphisms and Platinum-based Chemotherapy ...
· 1. Sci Rep. 2017 Jul 17;7(1):5593. doi: 10.1038/s41598-017-05642-0. Genetic Polymorphisms and Platinum-based Chemotherapy Treatment Outcomes in Patients with Non-Small Cell Lung Cancer: A Genetic Epidemiology Study Based Meta-analysis.
CiteSeerX — doi:10.1155/2011/843019 Review Article ...
CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Platinum agents (cisplatin, carboplatin, and oxaliplatin) are a class of chemotherapy agents that have a broad spectrum of activity against several solid tumors.
v115n8a4 Effects on entrainment of serpentines by ...
Figure 1 – Schematic flow sheet of the batch flotation tests Table I Conditions for the bench-scale flotation and micro-flotation tests Experimental conditions Constants Cell type XF-D Cell volume 1.5 L, 0.5 L Solid feed mass 0.5 kg Impeller speed 800 rpm Air flow-rate 4 L/min Ore Yunnan mine Feed size 90 % passing 37µm
Application of fundamentals in optimizing platinum ...
Conference, Platinum in transition ''Boom or Bust'', The Southern African Institute of Mining and Metallurgy, 2010. Application of fundamentals in optimizing platinum concentrator performance M.M. VALENTA and H. MAPHETO Metallicon Process Consulting (Pty) Ltd A number of challenges face platinum concentrator plant operators.
A mitochondria-targeted fluorescent probe for cisplatin
· It forms part of a class of platinum(II) anticancer agents and is being used widely for treatment of a variety of malignancies such as testicular, ovarian, lung and colorectal cancers.
Surface characteristics and flotation behaviour of ...
The surface characteristics and flotation behaviour of synthetic sperrylite (PtAs 2) and palladoarsenide (Pd 2 As) has been investigated. The results revealed that, of the two synthetic sperrylite samples described, the one synthesised at a short initial thermal treatment, floated well in the presence of xanthate whereas the other, synthesised ...
Minerals | Free Full-Text | The Geological Occurrence ...
Russia and South Africa are the world''s leading producers of platinum group elements (PGEs). This places them in a unique position regarding the supply of these two key industrial commodities. The purpose of this paper is to provide a comparative high-level overview of aspects of the geological occurrence, mineralogy, and processing by flotation of the platinum group minerals (PGMs) found in ...
Disposition tumour platinum hypoalbuminaemic patients ...
176 J. Holdinget al. taken at the endofthe infusion fromeach subsequent patient and this part of the study was expanded to include 20 patients. Onepatient was lost to follow up andhissurvivaltimeis unknown;in platinum patients and and < tumour andnormalrange = =< =10
Processing of Platinum Ores
The Journal of The South African Institute of Mining and Metallurgy OCTOBER 1998 269 Processing of Platinum Ores R.L. Paul, General Manager, Engineering Research and Services, Mintek PROBLEM DEVELOPMENTS Early rejection of non- PGM waste Dense media separation; jigging
Erlotinib treatment after platinum-based therapy in ...
· In this prospective non-interventional study, the effectiveness and tolerability of erlotinib in elderly patients with non-small-cell lung cancer (NSCLC) after ≥1 platinum-based chemotherapy were assessed. A total of 385 patients ≥65 years of age with advanced NSCLC receiving erlotinib were observed over 12 months. The primary endpoint was the 1-year overall survival (OS) rate.
Targeting and delivery of platinum-based anticancer drugs ...
Platinum-based anticancer drugs occupy a crucial role in the treatment of various malignant tumours. However, the efficacy and applicability of platinum drugs are heavily restricted by severe systemic toxicities and drug resistance. Different drug targeting and delivery (DTD) strategies have been developed to prevent the shortcomings of platinum-based chemotherapy.
Froth flotation is a process for selectively separating hydrophobic materials from hydrophilic.This is used in mineral processing, paper recycling and waste-water treatment industries. Historically this was first used in the mining industry, where it was one of the great enabling technologies of the 20th century.
Platinum-Based Chemotherapy plus Cetuximab in Head and ...
Platinum-based chemotherapy consisting of either cisplatin or carboplatin is the usual first-line treatment for inoperable recurrent or metastatic squamous-cell carcinoma of the head and neck.
Bevacizumab and platinum-based combinations for recurrent ...
· Management of newly diagnosed ovarian cancer typically involves cytoreductive surgery and platinum–taxane doublet chemotherapy. At relapse, patients might be candidates for platinum re-treatment, depending on several factors, including previous response and the interval since completing platinum-containing therapy.
A new technique for extraction of platinum group metals by ...
However, at elevated temperatures between 120 and 180 °C, PGMs can be leached by sodium cyanide like the reaction of gold. In this work, a new technique to treat Pt–Pd sulfide flotation concentrates and spent auto-catalysts by pressure cyanidation is put forward, and the results of 5 kg-scale batch experiments in a 50 L autoclave are ...
Single nedaplatin treatment as salvage chemotherapy for ...
· Corresponding Author. Department of Gynaecologic Oncology, Saitama Medical University International Medical Centre Comprehensive Cancer Centre, Hidaka, and
Hypersensitivity Reactions Associated with Platinum ...
Platinum-containing chemotherapy agents (cisplatin, carboplatin, oxaliplatin) have been approved in the first-line setting of numerous malignancies, such as ovarian, bladder, head and neck, colorectal, and lung cancer. Their extensive use over the last decade has led to a significant increase in the incidence of hypersensitivity reactions, which are defined as unforeseen reactions whose signs ...
Recovery of Platinum, Palladium, and Gold From Stillwater ...
beneficiated by froth flotation (l-l) and matte smelting-leaching (4). Because of long processing times en countered with conventional treatment of PGM sulfide concentrates and the ultimate probable dependence on a foreign smelter and refinery to produce the platinum…
Hazardous Waste Treatment Technologies
Electro-oxidation with platinum anode resulted in a 66% target compound removal and 49% COD removal. For electro-oxidation and electrocoagulation treatment, the removal of parent compound and COD was 84% and 80%, respectively. Shabeer et al. (Shabeer, Saha et al., 2014) used bentonite and organo-modified montmorillonite clays to
Electrochemical removal of nitrate in industrial wastewater
Molasses wastewater has been treated by this technique. Under the optimum condition of reaction time at 3.5 h, current density at 32.76 mA/cm 2 and 45% water dilution, the removal rate of nitrate was 51.72% [ 87 ]. Mechanism. Electrocoagulation is an effective technology for removal of nitrate from wastewater.
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