Abstract: Trapping device for frugivorous insects. The device comprises trapping means and a single diffuser of attractant means arranged inside the trapping means. The diffuser is made up of a container containing inside a support material. This support material, which is of the porous type, is impregnated with a solution comprising a diaminoalkane, ammonium acetate and trimethylamine.
Type:
Grant
Filed:
November 20, 2006
Date of Patent:
April 16, 2013
Assignee:
Sociedad Española de Desarrollos Quimicos S.L.
Abstract: 1,1-bis(4-chlorophenyl)-2,2,2-trichloroethanol is separated from a mixture comprising by way of the formation of an addition compound between 1,1-bis(4-chlorophenyl)-2,2,2-trichloroethanol and a moderately electron donating compound, preferably selected from a group formed by dimethyl sulphoxide, cyclohexanone, isophoron, pyridine, 1,4-dioxane, acetic acid, acetonitrile and water.
Type:
Grant
Filed:
July 18, 1990
Date of Patent:
January 14, 1992
Assignee:
Sociedad Espanola de Desarrollos Quimicos S.A.
Inventors:
Jaime Palencia Adrubau, Jaume Castella Sola
Abstract: A process for purifying technical grade 1,1-bis(chlorophenyl)-2,2,2-trichloroethanol for reducing its content of DDT related impurities, based on dissolving technical grade dicofol in a mixture of water and a first compound selected from the group formed by ethylene glycol monomethyl ether, acetonitrile, hydroxyacetone or dimethyl sulfoxide, to obtain a solution which is extracted with n-decane, separating the resulting phases. The dicofol extracted with the n-decane is recovered by reextraction of the n-decane phase with mixtures of said first compound and water and the purified dicofol is recovered from the polar phase.
Type:
Grant
Filed:
November 27, 1990
Date of Patent:
December 24, 1991
Assignee:
Sociedad Espanola de Desarrollos Quimicos S.A.
Inventors:
Jaime Palencia Adrubau, Jaume Castella Sola