Results 11 to 20 of about 709,087 (340)
Separation behavior of arsenic and lead from antimony during vacuum distillation and zone refining
Journal of Materials Research and Technology, 2020 When classifying impurities in commercial pure antimony (Sb, 99.8%), arsenic (As) and lead (Pb) should be brought to the forefront consideration. Due to the known difficulty of As removal through zone refining, it is meaningful to investigate its ...
Xiaoxin Zhang +2 more
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High- and Ultra-High-Purity Aluminum, a Review on Technical Production Methodologies
Metals, 2021 Aluminum and aluminum-based alloys have been used for many years. In view of the increase in material purity requirements of advanced technology products, research regarding high-purity aluminum has gained significant attention in recent years.
Danilo C. Curtolo +3 more
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Metals, 2017 Aluminum ultra-purification is commonly realized through a combination of three-layer electrolytic refining and fractional crystallization, mostly using zone melting.
Danilo C. Curtolo +4 more
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ENZYME BASED RECYCLING PROCESSES
Detritus, 2022 Novel strategies allowing environmentally friendly recycling of plastics are strongly needed. Enzymes have shown high potential, especially for the recovery of building blocks from multilayer materials which will be discussed in this paper. It has been shown that enzymes can specifically hydrolyze and solubilize certain components of blended packaging ...
Georg M. Guebitz +2 more
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Recovery of Rare Earth Elements through Spent NdFeB Magnet Oxidation (First Part)
Metals, 2022 Due to their remarkable magnetic properties, such as a high maximum energy product, high remanence, and high coercivity, NdFeB magnets are used in a variety of technological applications.
Srecko Stopic +6 more
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Devotional Waste Recycling Process
, 2021 Devotional waste (garbage) which is mostly found on the temples now a days are worship flowers, plastic bags of worship favour, all worship related waste, leaves of trees, mostly dumped waste is coconuts shells and flowers etc. All this waste either thrown into a garbage areas or thrown into a river but we have to change it and have to use it for ...
Piyush Rana +4 more
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Applied Sciences, 2018 Zone refining, as the currently most common industrial process to attain ultrapure metals, is influenced by a variety of factors. One of these parameters, the so-called “zone length”, affects not only the ultimate concentration distribution ...
Danilo C. Curtolo +4 more
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Advances in Understanding of the Application of Unit Operations in Metallurgy of Rare Earth Elements
Metals, 2021 Unit operations (UO) are mostly used in non-ferrous extractive metallurgy (NFEM) and usually separated into three categories: (1) hydrometallurgy (leaching under atmospheric and high pressure conditions, mixing of solution with gas and mechanical parts ...
Srecko Stopic, Bernd Friedrich
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Complete Recycling of Composite Material Comprising Polybutylene Terephthalate and Copper
Recycling, 2017 Composite materials comprising plastic and metal parts generate a large amount of waste containing valuable components that are difficult to separate and recycle.
Fabian Knappich +3 more
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Advances in Understanding of Unit Operations in Non-Ferrous Extractive Metallurgy 2021
Metals, 2022 The high demand for critical materials, such as rare earth elements, indium, gallium, and scandium, raises the need for an advance in understanding the unit operations in non-ferrous extractive metallurgy [...]
Srecko Stopic, Bernd Friedrich
doaj +1 more source