in 1979 we installed the first chemical recycling system and increased efficiency to 98 %. in 1985 we introduced the first carat control unit which could make rapid carat control using potentiometric ...

1- )The silver proportion in gold scrap is checked. It should be less than 8%. 2- ) The thin parts are put into the titanium boiler. The thicker parts however should be melted first and put into water ...

Johannesburg – Around the time most children start their school day, 13-year-old Moses (not his real name) loads soil into a phenduka, a gold refining machine. He mixes the soil with salt, washing ...

Doha, Qatar: In a significant leap forward for Qatar’s economic landscape, Falcon Gold and Precious Metals QFZ LLC is set to open the country’s first gold refinery in the Qatar Free Zone. This ...

Around the time most children start their school day, 13-year-old Moses (not his real name) loads soil into a phenduka, a gold refining machine. He mixes the soil with salt, washing powder, vinegar, ...