Patents by Inventor Agostino Baradel

Agostino Baradel has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Treatment of the effluents from the production of epoxy resins
    Patent number: 4976864
    Abstract: Process for the treatment of aqueous effluents from the production of epoxy resins, which effluents contain as their main impurities chlorohydrins, glycidol, isopropyl alcohol and sodium chloride, which process comprises the following steps:(a) hydrolytic treatment of the effluent under alkaline conditions, until the effluent's content of epichlorohydrin in reduced down to values of about 75 ppm, and the effluent's glycidol content is reduced to values lower than about 4,000 ppm;(b) removal of about 90% of sodium chloride from the hydrolyzed effluent; and(c) anaerobic digestion of the hydrolyzed, sodium chloride-deprived effluent, after preliminary dilution, neutralization and integration with nitrogen and phosphorus sources.The (b) step can be carried out by means of a process of concentration of the effluent, in order to cause sodium chloride to precipitate, or by submitting the same effluent to a treatment of electrodialysis.
    Type: Grant
    Filed: October 6, 1989
    Date of Patent: December 11, 1990
    Assignee: Eniricerche S.p.A.
    Inventors: Agostino Baradel, Gino Della Penna, Silvio Gulinelli, Mario Valdiserri, Andrea Robertiello
  • Process for separating arsenic from acid solutions which contain it
    Patent number: 4737350
    Abstract: A process for separating arsenic from acid aqueous solutions containing arsenic and other metal ions. The process involves bringing the acid aqueous solution into contact with a water-immiscible organic diluent consisting of hydrocarbons, alcohols or their mixtures, in which there is dissolved as solvent at least one polyol. The solvent thereby extracts the arsenic, which is then re-extracted with a counter-solvent.
    Type: Grant
    Filed: March 26, 1987
    Date of Patent: April 12, 1988
    Assignee: Nuova Samim S.p.A.
    Inventors: Agostino Baradel, Renato Guerriero
  • Process for separating arsenic from acid solutions containing it
    Patent number: 4701311
    Abstract: A process for the selective extraction of arsenic from acid solutions containing other metals comprising treating the solutions with polyhydroxybenzene derivatives in organic diluent; mono- and di- alkyl derivatives containing at least four alkyl carbon atoms of pyrocatechol and pyrogallic acid are particularly contemplated for use in the removal of arsenic from strongly acid copper-containing electrolyte solutions.
    Type: Grant
    Filed: October 24, 1985
    Date of Patent: October 20, 1987
    Assignee: Consiglio Nazionale Delle Richerche
    Inventors: Agostino Baradel, Renato Guerriero, Giuseppe Veronese
  • Process for the separation of arsenic from acid solutions containing it
    Patent number: 4547346
    Abstract: Process for the separation of arsenic from acid aqueous solutions containing arsenic and other metals characterized in that the acid aqueous solution is placed in the contact with water-immiscible organic solvent which extracts the arsenic, the arsenic being reextracted from the organic solvent by means of a countersolvent.
    Type: Grant
    Filed: July 3, 1984
    Date of Patent: October 15, 1985
    Assignee: SAMIM Societa Azionaria Minero-Metallurgica S.p.A.
    Inventors: Renato Guerriero, Giuseppe Veronese, Agostino Baradel, Luigi Rivola