doi treatment of platinum flotation platinum


DOI: 10.1595/X1667 Treatment of Platinum ...

Most women with ovarian cancer experience disease relapse, presenting numerous treatment challenges for clinicians. Maintenance therapy in the relapsed setting aims to extend the time taken for a cancer to progress, thus delaying the need for additional treatments. Four therapies are currently approved in the USA for secondline maintenance treatment of platinum sensitive, recurrent ovarian ...

Phase 2 study of canfosfamide in combination with ...

Platinum producers are evaluating hydrometallurgical process routes to extract platinum group metals (PGM) and base metals (BM) from flotation concentrate that are alternative to conventional pyrometallurgical matte smelting treatment of flotation concentrates.

Hydrometallurgical processing of Platreef flotation ...

Objective: The aim of this study was to compare response rates and survival in women with "platinum resistant" epithelial ovarian cancer (EOC) who received further platinum-based or non‑platinum chemotherapy for treatment at first relapse. Methods: Patients with high-grade EOC (including fallopian tube and peritoneal cancer) of all histologies recruited to the Australian Ovarian Cancer Study ...

Platinum-Based Agents for Individualized Cancer Treatment ...

Dec 06, 2016· In the platinum–pemetrexed group, 82 of 136 patients (60%) crossed over to receive osimertinib, with 63 of 82 patients (77%) receiving ongoing treatment at the time of data cutoff.

DNA polymerase η modulates replication fork progression ...

Equimolar amounts of palladium, nickel and platinum were completely separated from each other by successive flotations. Photographs taken of the bubbles during flotation showed that, at a flow‐rate of 3.1 litre/hour, a mean surface area of 2.07 metre 2 passed through the cell per minute.

Osimertinib or Platinum–Pemetrexed in EGFR T790M–Positive ...

DOI: 10.11159 /mmme18.124 · ... of precious and non-ferrous metals by a complex treatment of the flotation products from South African platinum-containing chrome ores. ... state data from a nine ...

Extraction of Platinum Group Metals | IntechOpen

Nov 20, 2013· Human cells lacking DNA polymerase η (polη) are sensitive to platinum-based cancer chemotherapeutic agents. Using DNA combing to directly investigate the role of polη in bypass of platinum ...

Oxidation of ethyl xanthate on platinum, gold, copper, and ...

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-

processing platinum flotation - Odanah School

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;inanother, bloodwas drawnfroma vein in the samearmas the drip andso contained misleadingly high plasma concentrations of

The effect of using different comminution procedures on ...

Jul 01, 2011· The uniqueness of Platinum-Group Elements (PGE) deposits and their formation dictates the development of the treatment process and the reagent regime for different ore types. There is however little data published on the flotation of PGE-bearing minerals due to its highly confidential nature ( Bulatovic, 2003 ).

Crizotinib vs platinum‐based chemotherapy as first‐line ...

with platinum-based chemotherapy as first-line treatment for advanced NSCLC due to the rarity of ROS1 rearrange-ments. In addition, studies reporting the outcomes of crizo-tinib treatment or platinum-based doublet chemotherapy in patients with different ROS1 gene fusions have not yet been identified.

Characterisation and Flotation of a Weathered Platinum ...

DOI: 10.11159/mmme18.124 MMME 124-1 Characterisation and Flotation of a Weathered Platinum Group Metal Ore Mohale Letseli1, Willie Nheta1, Arno Steinmuller2 1University of Johannesburg P.O.BOX 17011, Doornfontein 2028, Johannesburg, South Africa [email protected]; [email protected] 2Lonehill Office Park, Lonehill on

Response rates to second-line platinum-based therapy in ...

Oct 02, 2017· About 80% of the worlds' reserves for platinum group metals (PGMs) are in South Africa's Bushveld Igneous Complex. Processing of PGM involves comminution, flotation, smelting, converting, base metals refinery and precious metals refinery. Due to increasing chrome content in the feed and the challenges associated with operating high chrome feed, alternative routes to smelting of PGM are ...

Characterisation and Flotation of a Weathered Platinum ...

DOI: 10.11159/mmme18.124 MMME 124-1 Characterisation and Flotation of a Weathered Platinum Group Metal Ore Mohale Letseli1, Willie Nheta1, Arno Steinmuller2 1University of Johannesburg P.O.BOX 17011, Doornfontein 2028, Johannesburg, South Africa [email protected]; [email protected] 2Lonehill Office Park, Lonehill on

Management of recurrent ovarian cancer: when platinum ...

Most women with ovarian cancer experience disease relapse, presenting numerous treatment challenges for clinicians. Maintenance therapy in the relapsed setting aims to extend the time taken for a cancer to progress, thus delaying the need for additional treatments. Four therapies are currently approved in the USA for secondline maintenance treatment of platinum sensitive, recurrent ovarian ...

Treatment of Platinum Flotation Products | Johnson Matthey ...

Purpose: Five programmed cell death protein 1 (PD-1) or its ligand (L1) inhibitors are approved for treatment of platinum-refractory locally advanced/unresectable or metastatic urothelial carcinoma. However, their comparative effectiveness is unknown. Herein we compared time to initiation of third therapy or death (TTTTD) and overall survival (OS) with different PD-1/L1 inhibitors in patients ...

Osimertinib or Platinum–Pemetrexed in EGFR T790M–Positive ...

DOI: 10.1595/X1667 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-

Decision analysis for secondline maintenance treatment of ...

Nov 20, 2013· Human cells lacking DNA polymerase η (polη) are sensitive to platinum-based cancer chemotherapeutic agents. Using DNA combing to directly investigate the role of polη in bypass of platinum ...

Comparative Effectiveness of Immune Checkpoint Inhibitors ...

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 South African platinum-containing ...

Precipitate Flotation II. Separation of palladium from ...

Title:Platinum-Based Agents for Individualized Cancer Treatment VOLUME: 13 ISSUE: 10 Author(s):X. Chen, Y. Wu, H. Dong, C. Y. Zhang and Y. Zhang Affiliation:School of Chemistry and Chemical Engineering, Key Lab of Analytical Chemistry for Life Science, Ministry of Education of China, Nanjing University, 22 Hankou Road, Nanjing 210093, China.

Disposition tumour platinum hypoalbuminaemic patients ...

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 management of the …

OVERVIEW OF PGM PROCESSING - Anglo American Platinum

Sep 29, 2020· The standard of care for first-line treatment of recurrent and/or metastatic squamous cell carcinoma of the head and neck (R/M SCCHN) in patients who cannot tolerate platinum-based regimens has not been clarified. We aimed to develop a new treatment regimen for patients with R/M SCCHN who are ineligible for platinum-based therapy, by evaluating the effects and safety of tegafur/gimeracil ...

A review of investigations into the management of gangue ...

DOI: 10.11159 /mmme18.124 · ... of precious and non-ferrous metals by a complex treatment of the flotation products from South African platinum-containing chrome ores. ... state data from a nine ...

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