Industrial cleaning process

The principles involved in detergency have been introduced in Section 3.6.6 and are discussed in terms of household, personal care apphcations in Section 15.2. In a typical industrial cleaning process, an object to be washed is brought into contact with a cleaning solution, or bath, usually with enough solution to both wet (remove... 

The main uses of petroleum naphtha fall into the general areas of solvents (diluents) for paints, etc, dry-cleaning solvents, solvents for cutback asphalt, solvents in mbber industry, and solvents for industrial extraction processes. Turpentine, the older, more conventional solvent for paints, has been almost completely replaced by the cheaper and more abundant petroleum naphtha. 

R. E. Hucko and co-workers, "Status of DOE-sponsored Advanced Coal Cleaning Processes," ia R. R. K1 impel and P. T. Luckie, eds.. Industrial Practice of Fine Coal Processing, SME, Inc., Littieton, Colo., 1989. 

Bone Cleaning. As an alternative to rendering, an en2ymatic process can be used to upgrade fresh bones to valuable products, eg, cleaned bone suitable for gelatin production and a meat protein hydrolysate for the food industry. This process is performed as a two-step en2yme process, ie, scrap meat recovery and bone cleaning. 

CFCs have been widely used as cleaning solvents, as they are nonflammable and their toxicity is low. Now, flammable solvents are coming back into favor. A news item from a manufacturer described "a new ozone-friendly cleaning process for the electronics industry, which "uses a unique hydrocarbon-alcohol formulation. It did not remind readers that the mixture is flammable and that they should check that their equipment and procedures are suitable. 

Shipman AJ, Whim BP. 1980. Occupational exposure to trichloroethylene in metal cleaning processes and to tetrachloroethylene in the drycleaning industry in the U K. Ann Occup Hyg 23 197-204. 

The Lambda Group Inc. was an industrial organization involved in coal business, which supported the development of a coal cleaning process led by Jo Davison, during the second half of the 1980s. 

WHEELER Cleaning Process Lines in the Explosives Industry... 

In many natural (raindrops, fogs, river water fall) and industrial systems (sprays, oil combustion engines, cleaning processes), one encounters liquid drops. The rate of evaporation of liquid from such drops can be of importance in the function of these systems. 

We arbitrarily considered a maximum acceptable material removal during the cleaning process of 5 nm, which corresponds for an industrial 10-min process time to a 0.5 nm/min etching rate. Different oxidant-free mixtures able to remove particles by underetching mechanisms and covering the whole pH range were adjusted to remove—in 10 min — 5nm of PECD... 

Heavy metals are recovered by the ENVIRO-CLEAN process and can be reused by industry. 

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