Record Display for the EPA National Library Catalog

RECORD NUMBER: 15 OF 26

Main Title Recycling Zinc in Viscose Rayon Plants by Two Stage Precipitation.
CORP Author Environmental Protection Agency, Cincinnati, Ohio. Office of Technology Transfer.
Year Published 1972
Report Number EPA/625/2-73/001a;
Stock Number PB-259 136
Additional Subjects Water pollution control ; Zinc ; Textile processes ; Materials recovery ; Precipitation(Chemistry) ; Rayon ; Industrial wastes ; Cost estimates ; Circulation ;
Internet Access
Description Access URL
https://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=20013450.PDF
https://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=300046K0.PDF
Holdings
Library Call Number Additional Info Location Last
Modified		 Checkout
Status
NTIS  PB-259 136 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 13p
Abstract
In an EPA demonstration grant, a process for precipitating a dense sludge of high zinc assay was proven. The zinc in the sludge was recovered and recycled to the rayon manufacturing plant. This recycling of zinc was shown to have no ill effects on rayon yarn. This process greatly enhances the economics of removing this source of zinc pollution, allowing neutralization of the acid stream and recovery of the zinc of a good profit for industrial yarns and at a moderate cost for textile yarns.