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froth flotation

nbsp018332froth flotation is a process for selectively separating hydrophobic materials from hydrophilic this is used in mineral processing paper recycling and waste water treatment industries historically this was first used in the mining industry where it was one of the great enabling technologies of the 20th century it has been described as quotthe...

glass mortaramppestle | spectrum

nbsp018332mortar and pestle sets are made of clear heavy flint glass mortar has a heavy molded base and lip for pouring sold as a set images are representative of the product group and not necessarily the individual product octagonal mortar and pestle sets feature highly polished grinding surfaces...