Method of producing a pre-wet, dust-free form of asbestos...

Details Method of producing a pre-wet, dust-free form of asbestos... Method of producing a pre-wet, dust-free form of asbestos...

B - Operations, Transporting

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23/374

B01J 2/12 (2006.01) C08K 3/34 (2006.01) C08K 7/12 (2006.01) C08K 9/08 (2006.01)

Patent

CA 1127824

METHOD OF PRODUCING A PRE-WET, DUST-FREE FORM OF ASBESTOS SHORT FIBERS AND COMPOSITION OF SAME ABSTRACT OF THE DISCLOSURE A method of producing a pre-wet, dust-free form of asbestos short fibers comprises admixing about 60-90% by weight of asbestos short fibers with about 10-40% by weight of liquid in a manner so as to produce an agglom- erated product, with the liquid including a relatively non-volatile binder comprising about 5-40% of the product, a sufficient quantity of a solvent or volatile component to reduce the viscosity of the liquid to a level that permits easy formation of an agglomerate, and a suffi- cient quantity of a surfactant to cause thorough wetting of the fibers in the product. The agglomerated product is stored for at least about 24-72 hours after production so as to permit the liquid to completely infiltrate and fully wet the agglomerated product. Hydrophilic liquids are used to produce asbestos agglomerate designed for admixture with predominately polar materials; organophilic liquids are used for producing asbestos agglomerate pre- pared for admixture with non-polar materials. The re- sulting compositions are pre-wet for easy admixture with materials of like polarity and remain in an agglomerated, dust-free form during storage and handling for an indefinite period of time.

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