PROCEDURES FOR THE DISPOSAL OF POWDER AND OTHER SOLID POWDER FROM HOLDINGS

摘要

PCT No. PCT/EP95/02118 Sec. 371 Date Feb. 26, 1996 Sec. 102(e) Date Feb. 26, 1996 PCT Filed Jun. 3, 1995 PCT Pub. No. WO96/01144 PCT Pub. Date Jan. 18, 1996A process and an apparatus for removal of a lumen filler and/or other soluble residues from hollow filament bundles are described. The hollow filament bundles are first roughly cleaned by centrifuging, after which in a process preferably containing multiple steps they are cleaned by spraying and centrifuging. The first spraying step is preferably carried out in a pass-through mode and each of the additional steps under recirculation. After a constant concentration has been attained, the cleaning baths in each case are employed for a lower-order treatment step, the cleaning bath of the first spraying step being fed to a recycling process.