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DOI: 10.1595/147106704X1667 Treatment of Platinum ... Fig. 2 Flowsheet showing the treatment of flotation concentrates of low-sulfide platinum-containing ores Platinum Metals Rev., 2004, 48, (3) 127 maximum drop in recovery is seen with a L:S (liq-Read More
Platinum Metals Rev., 2006, 50, (4), 158–170 DOI: 10.1595/147106706X154198 High-Temperature Mechanical Properties of the Platinum Group Metals PROPERTIES OF PURE IRIDIUM AT HIGH TEMPERATURE By R. Weiland and D. F. Lupton* Engineered Materials Division, W. C. Heraeus , Hanau, Germany; *E-mail: david.lupton@heraeus
Platinum catalyses the oxidation and reduction of various species on its surface [104]. There are many different uses of platinum catalysts in a diverse range of industries, perhaps most notably ...
Altogether, no neuroprotective strategy can yet be recommended for prevention and treatment of platinum-induced neurotoxicity, with a possible exception for …
Since the appearance of the early review on cis-diamminedichloridoplatinum(II), commonly known as cisplatin, 1, in this Journal (), and its early successes in the treatment of a variety of tumours, the topics of metal-DNA binding and platinum antitumour chemistry have attracted considerable interest from chemists, pharmacologists, biochemists, biologists …
Bioleaching experiments in stirred tank reactors were carried out under aerobic and anaerobic conditions. 2-L-Bioreactors (Electrolab, UK) with 1.5 L working volume were operated with 10% (w/v) pulp density in basal salt medium pH 1.8 for 10 to 14 days.As the total sulfur content of the oxidized samples was ≤0.02%, 1% sulfur was …
Mineable platinum group metal (PGM) deposits are rare and found in relatively few areas of the world. At the same time, the use of PGM is predicted to expand in green technology and energy applications, and …
BackgroundTriple-negative breast cancer (TNBC) is one of the most aggressive subtypes of breast cancer and the major phenotype of BRCA related hereditary breast cancer. Platinum is a promising chemotherapeutic agent for TNBC. However, its efficacy for breast cancer with BRCA germline mutation remains inconclusive. Here we …
The platinum-group metals (PGMs) are six neighboring elements in the periodic table of the elements. Each PGM can efficiently promote unique reactions, and therefore, alloying PGMs would create ideal catalysts for complex or multistep reactions that involve several reactants and intermediates. Thus, high-entropy-alloy (HEA) nanoparticles (NPs) of all six PGMs …
e18042 Background: The clinical utility of maintenance therapy (MT) for patients with platinum-sensitive recurrent ovarian cancer (PSROC) has been validated in several clinical trials. We assessed real world treatment patterns using a US nationwide electronic health record database. Methods: A retrospective study of patients with …
Background: Platinum-based agents, including cisplatin, carboplatin, and oxaliplatin, are indispensable for the treatment of lung cancer. The development of toxicity frequently necessitates dose reduction or discontinuation of therapy, despite the clinical response. Pharmacogenomics studies were reviewed to identify the possible genetic variants that …
Objectives: In ORIENT-11, first-line sintilimab + pemetrexed-platinum significantly improved PFS compared with placebo + pemetrexed-platinum in patients with advanced metastatic nonsquamous non-small-cell lung cancer (AMnsqNSCLC). The study met the primary endpoint of PFS as of 15November2019. Here we report final survival analysis from …
doi: 10.1595/147106707X205857 FINAL ANALYSIS: July 2007 Why Use Platinum in Catalytic Converters? S. E. Golunski; Johnson Matthey Technology Centre, ... (CO) and hydrocarbons. Platinum is particularly effective at this under oxygen-excessive conditions, so is often the metal of choice for diesel applications. For petrol-powered vehicles (where ...
The response rate for second-line platinum-based chemotherapy was dependent on the platinum-free interval, with different response rates for patients who progress at 6 to 12 months vs. those who progress after 12 months .
The Role of the Catalyst in a Proton Exchange Membrane Fuel Cell. Figure 1 shows how a PEMFC works. Hydrogen gas is fed to the anode where it adsorbs onto the catalyst surface. The adsorbed hydrogen atoms each lose an electron (e −) and are released from the metal surface as protons (H + ). The electrons flow to the cathode as current through ...
Journal. PDF 651 KB. Journal Archive. Platinum Metals Rev., 2004, 48, (3), 125. doi: 10.1595/147106704X1667. Treatment of Platinum Flotation Products. A. V. Tatarnikov* I. Sokolskaya. Ya. M. Shneerson* A. Yu. Lapin. P. M. Goncharov. All-Russian R & D Institute of Chemical Technology, 33 Kashirskoye …
DOI 10.1007/s40831-017-0146-0 ... discusses all the factors that affect the flotation of platinum group element bearing minerals, flotation routes, essential gaps, the problems associated with ...
Advances in the treatment of platinum resistant epithelial ovarian cancer: an update on standard and experimental therapies. Introduction: Platinum-resistant …
Platinum-based chemotherapy drugs are used to treat many types of cancer, including lung, breast, ovarian, and testicular cancer. Though effective, these drugs can cause many side effects ...
Using that FRAX algorithm, we define the following risk categories: "low risk" includes no prior hip or spine fractures, a BMD T-score at the hip and spine both above −1.0, and 10-year hip fracture risk <3% and 10-year risk of major osteoporotic fractures <20%; "moderate risk" includes no prior hip or spine fractures, a BMD T-score at ...
Platinum (Pt) is one of the six platinum group elements. In recent years, platinum emissions into the environment have increased due to its use in the automobile [], …
In recent works [9][10][11][12][13], the prospect of using platinum and iridium in composite coatings and film heterostructures to modify the surface of permanent implants, which are in demand in ...
The Bushveld Complex of South Africa contains almost 90% of the world's reserves of platinum group minerals (PGMs). In the flotation of PGMs, there are significant challenges arising from the need to treat ever-decreasing grades of the relevant ore deposits. The major challenge in the flotation of these ore bodies is the control and …
minution circuits as indicated by the mineralogy of the flotation feed and then the man-Figure 1. Typical MF2 circuit used in treatment of PGMs in Merensky, Upper Group Chromitite No.2 (UG2), and Platreef ores [7]. These improved processes are aimed at managing the problem of increasing liberation while not excessively grinding finer.
The beneficiation of platinum group metals (PGMs) from pristine (unweathered) sulfide ores has conventionally been conducted through froth flotation, which typically achieves platinum recoveries ...
A flowsheet has been developed for the production of rich concentrates of precious and non-ferrous metals by a complex treatment of the flotation products from …
We explored treatment outcomes according to primary platinum resistance (PPR) versus secondary platinum resistance (SPR). Patients and methods: Patients were categorized as PPR (disease progression <6 months after completing first-line platinum therapy) or SPR (progression ≥6 months after first platinum but <6 months after second). The ...
The usefulness of platinum as an electrochemical reference electrode was investigated. Well known redox systems with one-electron single or multiple redox waves, ... DOI: 10.1595/147106708X297855. working and auxiliary electrodes ensures that less current passes through the reference electrode. Furthermore, the three-electrode cell allows the ...
ferrous metals by a complex treatment of the flotation products from South African platinum- containing chrome ores. The procedure involves: autoclave leaching, roasting, …