The invention relates to a process for obtaining gold and silver. According to the invention, the process consists in the solubilization of refractory pyrite concentrates in sodium thiosulphate ammonia solutions, in the presence of divalent copper, the resulting suspension being then filtered and ...
We also realize a monolithically integrated SWIR imager based on solution-processed, toxic-heavy-metal-free materials, thus paving the way for this technology to the consumer electronics market. This is a preview of subscription content, access via your institution Access options Access Nature and ...
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However, it's expected that these firmer regulations and policies will be highly contested by employers who still have options of filling domestic labour supply shortages through technology substitution, moving activities off-shore, or importing workers with the characteristics they desire. Insecure work...
- 《Separation & Purification Technology》 被引量: 16发表: 2011年 Oxidative Pressure Leaching of Silver from Flotation Concentrates with Ammonium Thiocyanate Solution The thermodynamics and technologies of the selective pressure leaching of silver from flotation concentrates were investigated in an ammonium ...
There’s a lot to be optimistic about in the Technology sector as 2 analysts just weighed in on Microsoft (MSFT – Research Report) and Silverlake Ax...
During SilverCloud by Amwell’s annual Digital Mindset conference, experts deliberated the potential of technology in addressing current NHS pressures and enhancing access to mental healthcare Read Now Whitepaper: The Future of Therapy: How digital interventions are reshaping the mental health care lan...
We used an in situ gas holder (Climate S3, DENSsolutions) and a dedicated field-emission S/TEM (FEI Talos F20X) with an accelerating voltage of 200 kV to conduct the in-situ annealing experiments under different gaseous environments. The as-prepared Ag NPs supported on α-MnO2 (Ag/MnO2...
Nitrogen (N2) with ultra-high purity (UHP \(\sim\) 99%) was purchased form Praxair Technology (AL, USA). Standard Reference Material® 203456 was used as transfer standard for the verification, drift control, and calibration of the wavelength scale of UV–Vis absorption spectrophotometers. ...
Company Name:ZHEJIANG YAMEI NANO TECHNOLOGY CO., LTD.Gold Tel:400-8200386 13456373028 Email:2533928531@qq.com Company Name:Shanghai Buwei Applied Materials Technology Co. LTDGold Tel:021-64112762 18930491979 Email:1460837389@qq.com Company Name:Shanghai Yaotian New Material Technology Co., LTDGold ...