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Results 1-10 of 28 (Search time: 0.001 seconds).
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Issue DateTitleAuthor(s)
30-Nov-1982Para-­toluene-­sulphonic acid prepn. ­ by treating di:para-­tolyl­-tri:chloro­ethane prodn. residue, contg. sulphuric acid and toluene­-sulphonic acid, with tolueneDorobantu, Maria; Zlota, Arie; Barca, Elena
30-Nov-1982Di:valent sulphur cpd.­ -contaminated waste water and gas purificn. ­ - by contact with inorganic copper, iron and nickel salt catalystCruceru, Mihail; Craiu, Cornel; Toader, Felicia
30-Nov-1981Residual water­ purifying inorganic complex coagulant prepn. ­ by treating serpentine ore with hot sulphuric acid and sepg. and opt. concentrating acid filtrateCocheci, Vasile; Arpad, Eugen; Lorineti, Atila; Burtica, Georgeta; Ilea, Dorina
28-Feb-1983Variable speed continuous simultaneous multiple liquids dispenser­-has telescopic feed tube and flexible vent pipes with travel provided by helicoidal screw.Zlota, Arie; Dorobantu, Maria; Anistoroaie, Viorica
30-Nov-1981Titanium­ supported lead di:oxide electrode prodn. ­ by electrodeposition from acid electrolyte on titanium-iron coated with oxidised iron and tin and cobalt oxideRadovan, Ciprian
30-Oct-1984Treating residual acidic waters from chemical fertiliser industry with phosphorus and opt. phospho-gypsum by use as reagent and creation of high calcium carbonate contentCruceru, Mihail; Coroiu, Cornel; Parmac, Sorin; Dumitrescu, Emil; Costov, Ioan
30-Sep-1984Highly pure para-toluene-sulphonic acid prepn. by sulphonating toluene with conc. sulphuric acid at atmos. pressureDorobantu, Maria; Zlota, Arie; Barca, Elena; Anistoroaie, Viorica
30-Jan-1983Silver and support recovery from photosensitive material waste comprises silver halogenation, silver halide solubilisation, silver sepn. by electrolysis and gelatin removalCruceru, Mihail; Licaret, Constantin; Duda, Sanda; Petrescu, Marinela
30-Jan-1984Magnetite prepn. by oxidn. of cast iron chips in ammonium nitrate aq. soln. and hydrochloric acidTeodorescu, L.; Iliescu, Mircea; Alexandres, C.; Alexandres, A.
30-Jan-1983Zinc recovery from artificial fibre prodn. acidic waste waters ­ comprises two step pptn. with sodium hydroxide and then sodium carbonate soln.Cruceru, Mihail; Chircu, Seia; Craiu, Cornel