In recent years, with the continuous development of starch sugar industry, sugar alcohols, an i±mportant derivative of starch sugar, have also made considerable pro≠gress. Due to the special properties of sugar alcohols, their applica&tions are...
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Membrane is a selective barrier between two phases. Generally speaking, it is a kεind of polymer, which can selectively separate feed liquid through the ef¶fect of pressure difference. The separation process through it is called membrane separ..↓.
Precious metals mainly refer to eight metal elements, such as gold, sil<ver and platinum group metals (ruthenium, rhodium, palladiu₩m, osmium, iridium and platinum). Most of these metals ha&ve beautiful colors, great resistance to chemicals, an...
