Showing results 25 to 44 of 57
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| Issue Date | Title | Author(s) |
| 30-Sep-1984 | Phosphate recovery from residual acidic waters by consecutive neutralisation first with chalk or lime and then lime, with pptn. of calcium phosphate | Cruceru, Mihail; Dumitrescu, Emil; Parmac, Sorin; Coroiu, Cornel; Costov, Ioan |
| 30-Apr-2001 | Physico chemical cleaning of oil refinery waste water consists of controlled coagulation and flocculation, with up to 0.5 per cent by volume of sludge | Munteanu, Rodica; Arama, Madalina Georgeta; Popa, Iulian; Nicolau, Margareta; Georgescu, Cristian; Usurelu, Ion |
| 30-Jul-2002 | Preparation of calcium polysulfides consists of boiling of milk of lime, with sulfurization and addition of sulfur | Cocheci, Vasile; Anastasiu, Alexandru; Brinzei, Eugen; Dalea, Viorica; Martin, Alexandra; Vlad, Lidia |
| 30-Sep-1986 | Prepn. of oxalate(s) of di:phenyl or bisOnitrophenyl obtd. by condensn. of methyl (I) phenoxide(s) and oxalylchloride, in benzene or toluene | Anghelescu, N.; Dumitrescu, Emil; Costov, Ioan; Parmac, Sorin; Craiu, Cornel |
| 30-Oct-2009 | Process and installation for removing nitrates from residual waters in cities | Dinu, Laurentiu Razvan; Dumitrescu, Ciprian; Ghita, Ileana; Patroescu, Viorel Ion; Pena-Leonte, Eliza |
| 30-Jun-2016 | Process for continuous separation of active principles from vegetable oils using membrane bioreactors | Batrinescu, Gheorghe ; Cuciureanu, Adriana ; Popa, Ovidiu ; Babeanu, Narcisa Elena |
| 29-Dec-2000 | Process for fast cleaning of effluent from coal works | Teodorescu, Maria; Grosu, Ecaterina; Marhan, Rodica; Grindean, Cornel |
| 30-Oct-2009 | Process for obtaining supported materials of Tuf-Aln type includes distributing the support material consisting of volcanic tufa into a solution of sodium chloride, preparing a hydrolyzed aluminum solution | Masu, Smaranda; Bogatu, Corneliu; Andres, Ladislau; Nicorescu, Valeria; Botau, Dimitrie; Cocheci, Dan; Ihos, Monica; Demetrovici, Laurentiu; Demetrovici, Ligia; Chira, Dorina |
| 30-Oct-2009 | Process for recovering copper from spent catalysts involves solubilizing copper as tetramine cupric complex by percolation at environmental temperature for four hours with ammonia solution containing ammonia and ammonium chloride | Nitoi, Ines; Cosma, Cristiana; Nicolau, Margareta; Ballo, Aureliea; Draghici, Ecaterina |
| 30-Aug-2010 | Process for treating deep waters for drinking purpose, comprises e.g. preoxidizing iron ions and partially, manganese ions, by treating with chlorine dioxide | Bogatu, Corneliu; Botau, Dimitrie; Andres, Ladislau; Demetrovici, Ligia; Chis, Diana; Vlaicu, Vasile; Marsavina, Dalila |
| 29-Dec-2000 | Process for treatment of effluent from oil extraction industry | Draghici, Ecaterina; Cosma, Georgeta; Cosma, Cristiana; Ballo, Aureliea; Nicolau, Margareta; Toma, Dorina; Balalia, Ancuta; Mitila, Stefania |
| 30-Mar-1990 | Purificn. of urban waste waters using oxidn.redn. and coagulatio -flocculation stage | Craiu, Cornel; Cruceru, Mihail; Nicolau, Margareta; Cosma, Cristiana; Ballo, Aureliea; Demetrescu, A.; Nita, M.; Sendrea, George |
| 30-Jul-1990 | Purifying effluents from naphthol and naphthyl methyl carbamate prodn. | Nicolau, Margareta; Greere, M.; Fercala, D.; Roibu, C.; Curcaneanu, Nicolae; Serdarescu, D. |
| 30-Jul-1985 | Purifying residual industrial waters contg. organic contaminants by initial incomplete purificn. with catalytic redox system followed by complete biological purificn. with active sludge | Cruceru, Mihail; Licaret, Constantin; Teodorescu, Lavinia |
| 28-Jun-1985 | Purifying residual water contg. organic substances by adding urea and formaldehyde, sepg. the resin by filtration or sedimentation and purifying the water biologically after neutralising | Parmac, Sorin; Buliga, A.; Chiru, Epsica; Dumitrescu, Emil; Costov, Ioan; Cruceru, Mihail; Varlam, C.; Pristavu, N. |
| 30-Jun-1997 | Quantitative determination of major cadmium and zinc content of basic zinc@ alloys comprises separating cadmium and zinc by selective elution on ion exchange resin, breaking up sample, adjusting acidity, retaining cadmium and zinc, etc. | Debiasi, Rodica |
| 30-Aug-1985 | Recovering coagulant from treating residual waters by dissolving hydroxide formed, residual and unused acid, adding and formaldehyde, washing aminoplast and reusing water | Parmac, Sorin; Buliga, A.; Cruceru, Mihail; Dumitrescu, Emil; Costov, Ioan; Ghiorghiu, G. |
| 15-Sep-1988 | Recuperation of silver from photosensitive material waste consists of washing with sodium hydroxide soln., sludge separation, and alkaline fluxing after drying | Parmac, Sorin; Costov, Ioan; Trestioreanu, F.; Beleaua, Victor; Polgar, I.; Stanciu, M. |
| 30-Oct-1990 | Removal of warfarin and hydroxy-coumarin contaminants from effluents by formaldehyde condensn. in acidic medium | Rehner, Elena; Craiu, Cornel; Nicolau, Margareta; Cilianu, S. |
| 30-Nov-1981 | Residual water purifying inorganic complex coagulant prepn. by treating serpentine ore with hot sulphuric acid and sepg. and opt. concentrating acid filtrate | Cocheci, Vasile; Arpad, Eugen; Lorineti, Atila; Burtica, Georgeta; Ilea, Dorina |
