Leaching and recovery of gold using ammoniacal thiosulfate
Thiosulfate ligands may also act in a bridging role via the terminal sulfur atom or as a bidentate ligand through a sulfur and an oxygen atom, usually resulting in an insoluble complex (see Fig. 1) Gmelin, 1973, Livingstone, 1965, Ryabchikov, 1943, Zhao et al., 1997. Download : Download full-size image; Fig. 1. Structure of thiosulfate complexes.
The High Efficiency Filter removes 99.97% of pollutants. A combination of three layers—a primary filter, the High Efficiency Filter and high-quality activated carbon—effectively removes PM2.5, bacteria, viruses, pollen, formaldehyde, odors and so on. Breath at ease with a continuous output of purified air
Effects of sulfide on the integration of denitrification
Oct 01, 2015· The numerous straw-yellow, granular, filamentous insoluble solids in the liquid phase of the reactors were confirmed to be elemental sulfur (S 0) that had formed in the system. Download : Download high-res image (687KB) Download : Download full-size image; Fig. 1.
A Simple, Fast, "Column Free" Molecular Fingerprinting Technology. 25-ton (22.7 metric ton) air-actuated laboratory pellet press. Large cryogenic mill that accommodates sample sizes ranging from 0.1 100 grams. Swing mill that accommodates sample sizes ranging from 2 100 grams.
Progress in TENG technology—A journey from energy
As a promising technique for energy scavenging from the ambient environment, TENG has shown great advantages while serving as a power supply for wireless sensor networks (WSN) and IoT with simple structure, relatively high efficiency of power density, cost-efficiency, and good reliability. 96, 108, 130, 257 However, the energy supplied only by
Plasma treatments of gas streams with high concentrations of hydrogen sulfide in air yielded a removal of more than 98% of the initial hydrogen sulfide and
China Wet Desulfurization Catalyst for Hydrogen Sulfide
The desulfurization efficiency is high, and the coarse desulfurization unit can reduce the H 2 S in the purified gas to below 50mg/Nm 3. 3. It can be used for conventional desulfurization with H 2 S content less than 5.0g/Nm3, and also for desulfurization of high H 2 S concentration gas of more than 5~50g/Nm 3 .
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Welding Fumes, a Risk Factor for Lung Diseases
(1) Background: Welding fumes (WFs) are composed of fine and ultrafine particles, which may reach the distal airways and represent a risk factor for respiratory diseases. (2) Methods: In vitro and in vivo studies to understand WFs pathogenesis were selected.
Technetium-99m radiopharmaceuticals are in widespread use owing to the availability and affordability of 99Mo/99mTc generators and the variety of kits for formulating the desired products
