Deinking, minerals

Typical papers processed using wash deinking are 100% old newspaper and sorted office paper from which toner ink-printed paper has been removed. The effluent from washers is heavily laden with ink, mineral coating and filler particles, and small cellulose fibers. As a result, it can be difficult to clarify. 

By far, the largest technological application of liquid foams is in mineral froth flotation, and this process uses a substantial fraction of the world production of amphiphiles. Froth flotation is also used in other separation processes such as the deinking of recycled paper. Other uses of liquid foams include fire fighting, cleaning processes, drinks such as champagne or beer froth, foods such as whipped cream or egg white, and preparation of solid foams after solidification of the liquid continuous phase. 

In the pulp and paper industry, mineral raw materials are traditionally called pigments , whether or not they are used to affect color. The use of mineral pigments in the pulp and paper industry fall into five major catagories filling, coating, pitch control, deinking of recycled papers, and microparticle retention. The minerals comonly used for each job are ... 

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