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/123456789/870| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | Dorobantu, Maria | - |
| dc.contributor.author | Zlota, Arie | - |
| dc.contributor.author | Barca, Elena | - |
| dc.date.accessioned | 2017-04-20T13:46:06Z | - |
| dc.date.available | 2017-04-20T13:46:06Z | - |
| dc.date.issued | 1982-11-30 | - |
| dc.identifier.other | Patent no. RO 80441-A | - |
| dc.identifier.uri | http://hdl.handle.net/123456789/870 | - |
| dc.description | Patent Assignee Name(s) and Code(s): COMB PETROCH BORZES; INST EPURAREA APELOR REZ | en_US |
| dc.description.abstract | Para-toluene-sulphonic acid is prepd. by using the residue from di-p-tolyl-trichloroethane prodn. which contains 60% H2SO4 and 27% toluene-sulphonic acid. The residue is treated with toluene in ratio 1 : 1 to 1 : 4 (1 :1 :8), with stirring and heating, at 84-140 (110-114) deg.C. Unreacted and excess toluene distil azeotropically with water. After sepg. the water toluene layers, the water is discharged from process. Toluene is recirculated. Re-fluxing is continued 5-24 hrs., when the sulpho-mass contains 1-6% H2SO4. After cooling to 50-100 (70) deg.C, the vacuum distn. of excess toluene is continued. The excess toluene is reused in process. The resulting sulpho-mass contains 85% p-toluene-sulphonic acid. | en_US |
| dc.language.iso | en_US | en_US |
| dc.subject | Para-toluene-sulphonic acid | en_US |
| dc.subject | Preparation | en_US |
| dc.title | Para-toluene-sulphonic acid prepn. by treating di:para-tolyl-tri:chloroethane prodn. residue, contg. sulphuric acid and toluene-sulphonic acid, with toluene | en_US |
| dc.title.alternative | Procedeu si instalatie de fabricare a diparatolil tricloretanului | - |
| dc.type | Patents | en_US |
| item.fulltext | With Fulltext | - |
| item.cerifentitytype | Publications | - |
| item.grantfulltext | reserved | - |
| item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
| item.openairetype | Patents | - |
| item.languageiso639-1 | en_US | - |
| Appears in Collections: | Patents | |
Files in This Item:
| File | Description | Size | Format | Existing users please |
|---|---|---|---|---|
| Documentatie~RO80441A.pdf | 25.34 kB | Adobe PDF | Request a copy | |
| ~RO80441A.pdf | 90.22 kB | Adobe PDF | Request a copy |
Google ScholarTM
Check
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.