ECOLIB on DSpace CRIS
ECOLIB DIGITAL REPOSITORY is the institutional repository of National Research and Development Institute for Industrial Ecology ECOIND.
ECOLIB ensures preservation and management of documents and provides access to: articles of the ECOIND researchers published in national and international journals (full-paper/abstract), doctoral theses (abstract), conference and workshop papers, short description of the projects developed from 2006 till present, Proceedings of the International Symposium - Environment and Industry. The digital documents submitted in ECOLIB are indexed in Google Scholar.
Please use this identifier to cite or link to this item:
http://hdl.handle.net/123456789/872| Title: | Zinc recovery from artificial fibre prodn. acidic waste waters comprises two step pptn. with sodium hydroxide and then sodium carbonate soln. | Other Titles: | Procedeu de recuperare a zincului din ape reziduale | Authors: | Cruceru, Mihail Chircu, Seia Craiu, Cornel |
Keywords: | Zinc;Recovery;Residual water | Issue Date: | 30-Jan-1983 | Abstract: | Zn is recovered in 98% yield from residual waters of artificial fibre prodn. by first treating the acidic residue at 90-95 deg.C with a 30% NaOH soln. to pH 4-5., and then treating with a 10% Na2CO3 soln. to pH 8.5-9.5. The pptd. Zn concentrate is sepd. from the supernatant liq. by decantation or filtration, converted to ZnSO4 and crystallized. |
Description: | Patent Assignee Name(s) and Code(s): INST EPUR APEL REZI |
URI: | http://hdl.handle.net/123456789/872 |
| Appears in Collections: | Patents |
Files in This Item:
| File | Description | Size | Format | Existing users please |
|---|---|---|---|---|
| Documentatie~RO81184A.pdf | 22.98 kB | Adobe PDF | Request a copy | |
| ~RO81184A.pdf | 92.99 kB | Adobe PDF | Request a copy |
Google ScholarTM
Check
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.