Apparatus for signaling fog and solid impurities of sulfur gases
RO66482A2
Process and installation for perching copper
RO66983A2
Process and installation for the manufacturing of prprocede for obtaining cadmium sponge in the way expandable eoduits in electrochemical pvc
RO66620A2
Process for treating volatile powders obtained in the suspended fusion of copper concentrates
RO66879A2
Process for the valorization of zinc, lead, and copper, polymetallic concentrates of the floating of scories
RO62104A2
Method and device for producing liquid jets for the spraying of metals
RO63697A2
Process for the preparation of anmonium thiosulfate
RO67220A2
Process for the treatment of residual gas restricted in treating resulting gases in the manufacture of sulfuric acid and in the manufacture of sulfuric acid and results results resulted from the copper industry residual solutions resulting from the industry of copper re
RO66565A2
Process for obtaining selenium from anodic sludge of copper refining
RO64201A2
Process for the valorification of antimony from the anodic sludge of lead electrolite reclaiming
RO66881A2
Process for the extraction of gold and platprocede metals from the extraction of gold and noble metals from carboniferous materials of charboniferous materials
RO65367A3
Process and installation for obtaining metal powders
RO65361A3
Process and installation for producing metallic powders
RO65083A2
Process for obtaining lamellar fine aluminum powder
RO66931A2
Process for obtaining sodium antimoniate from subsroducts resulting from electrolytic lead restoration
