نتایج جستجو برای: mineral recovery
تعداد نتایج: 265778 فیلتر نتایج به سال:
Gravity, magnetic and electrostatic separation methods allowed to obtain different titanium oxide concentrates (ilmenite, leucoxene, rutile) varieties of zircon (premium zircon, standard medium grade standard) from Senegal’s heavy mineral sands. During mining separation, monazite, which is a paramagnetic mineral, was found in non-negligible concentration 0.57 wt% on average the also contains 37...
Alfalfa is the most planted perennial legume in world due to its high nutritive value, protein content, productivity, and digestibility addition vitamin mineral content. It also one of hardest plants ensile owing low reducible sugar dry matter (DM) contents buffering capacity. In this study, effects inoculation with Lactobacillus bifermentans which homofermentative brevis heterofermentative on ...
Effects of anthropogenic nitrogen (N) deposition and the ability of terrestrial ecosystems to store carbon (C) depend in part on the amount of N retained in the system and its partitioning among plant and soil pools. We conducted a meta-analysis of studies at 48 sites across four continents that used enriched N isotope tracers in order to synthesize information about total ecosystem N retention...
The historic Penouta mine in northwest Spain is the focus of efforts to extract tantalum from tin mining waste. This paper describes the characterisation of the tantalum mineralogy of waste material from the deposit. Characterisation was realised using quantitative mineralogy and geochemistry. This paper further identifies other phases of interest and investigates the potential for extraction u...
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