초록 ▼

A self-supporting structure comprising an inorganic sorbent and method for preparing is described in which the self-supporting structure is substantially free of sorbent fines and the sorption characteristics of the sorbent particles is retained. The process for immobilizing the sorbent particles in

A self-supporting structure comprising an inorganic sorbent and method for preparing is described in which the self-supporting structure is substantially free of sorbent fines and the sorption characteristics of the sorbent particles is retained. The process for immobilizing the sorbent particles in the self-supporting structure comprises the steps of: (a) preheating inorganic sorbent particles to an elevated temperature; (b) mixing the sorbent particles with particles of a polymeric binding material to form a mixture comprising the particles of polymeric binding material adhered to the sorbent particles; and (c) heating the mixture to about the solid-liquid transition temperature of the polymeric binding material with or without pressure to form a structure which upon cooling is self supporting.

대표청구항 ▼

A process for immobilizing inorganic sorbent particles with a polymeric, thermoplastic binding material, the process comprising: (a) preheating the inorganic sorbent particles, the major portion of which have particles sizes in the range of from about 1 to about 10 millimeters, to an elevated temper

A process for immobilizing inorganic sorbent particles with a polymeric, thermoplastic binding material, the process comprising: (a) preheating the inorganic sorbent particles, the major portion of which have particles sizes in the range of from about 1 to about 10 millimeters, to an elevated temperature; (b) mixing the heated sorbent particles with particles of the polymeric, thermoplastic binding material to form a mixture comprising from about 1 to about 7% polymeric, thermoplastic binding material based on the weight of the mixture, the particles of polymeric, thermoplastic binding material being adhered to the sorbent particles; and (c) heating the mixture to about the solid-liquid transition temperature of said polymeric, thermoplastic binding material with or without pressure, thereby forming a structure which, upon cooling, is self-supporting, in which the formation of sorbent fines is substantially eliminated and in which the sorption characteristics of the inorganic sorbent particles are substantially retained. The process of claim 1 wherein said polymeric, thermoplastic binding material comprises a polyolefin. The process of claim 1 wherein said inorganic sorbent particles comprise alumina.