Enitecnologie S.p.a.

Snamprogetti S.p.a.

Eniricerche S.p.a.

Enitechnologie S.p.a.

Agip S.p.a.

Ecotec Srl

Eniricerche S.p.a. and Agip S.p.a.

Rosario Pappa

Edoardo D'Angeli

Luciano Re

Piergiorgio Zappelli

Umberto Cova

Antonio Rossodivita

Arnaldo Roggero

Thomas Paul Lockhart

Felicia Massetti

Calogero Genova

Fabrizio Bonaccorsi

Raffaello Sisto

Armando Marcotullio

Mario Riocci

Irena Blute

Antonella Carpentieri

Aldo Imerito

An improved process is described for the removal of organic pollutants from soil by extraction with a lipophylic solvent, wherein the improvement consists in the fact that the purified soil is treated with water to remove the residual solvent. This process allows the residual solvent to be completely removed from the purified soil enabling it to be re-inserted into the environment, with a low energy consumption and a greater guarante of safety in the running of the plant.

Process for the remediation of soil polluted by organic compounds

Oil drill cuttings, containing an oil-based mud, may be treated by mixing the cuttings with an organic solvent. The oil drill cuttings are then separated from the organic solvent and extracted oil. The organic solvent is then separated from the oil, and mixed with the extracted oil drill cuttings to extract additional oil therefrom. The oil drill cuttings are again separated from the organic solvent and oil, the oil separated from the solvent, and recombined with the oil from the first extraction step. The oil base and other mud components are recycled, depending on the treatment procedure, for subsequent use in drilling.

Method for the removal and recovery of the oil component from drill cuttings

Photodegradative process for the purification of contaminated water

Process for the photocatalytic purification of waste water contaminated by odorant compounds containing sulfur, which can be applied to the purification of condensed water collected along the gas distribution network for domestic and industrial use.

Photocatalytic process for the purification of water polluted by odorant

Process for the photocatalytic purification of waste water contaminated by tetrahydrothiophene, applicable to the purification of condensation water collected along gas distribution lines for household and industrial use.

Photocatalytic process for purifying water polluted by

A hybrid fuel composition in the form of a stable water-in-oil microemulsion comprises a liquid hydrocarbon fuel, water, a glycolipid surfactant and a vicinal aliphatic diol co-surfactant. The hydrocarbon fuel can be a liquid fuel for autotraction such as gasoline or diesel fuel, or a liquid hydrocarbon fuel for domestic or industrial heating, such as gas oil, naphtha, kerosene and fuel oils in general.

Hybrid liquid fuel composition in aqueous microemulsion form

A hybrid diesel fuel composition in the form of a microemulsion stable with time over a wide temperature range comprises a diesel fuel, water, a glycolipid surfactant and an aliphatic alcohol co-surfactant.

Hybrid diesel fuel composition

New acrylamide copolymers formed by (meth)acrylamide benzene dicarboxylic monomer units in accordance with the following formula: ##STR1## wherein R is H or CH.sub.3 ; X is H or an alkaline metal or NH.sub.4 ; and wherein the COOX groups may be in ortho-, meta- or para- position in relation to each other, preferably being in ortho- position to each other; and of (meth)acrylamide monomer (II) units.

Acrylamide copolymers containing (meth)acrylamide benzene dicarboxylic

New homopolymers formed by malonic (meth)acrylamide monomer units according to the following formula: ##STR1## wherein R is H or CH.sub.3 ; X is H or an alkaline metal or NH.sub.4.sup.+ ; and copolymers formed by (meth)acrylamide monomer units (I) and monomer units (II).

Polymers and copolymers containing malonic (meth)acrylamide units

A method is disclosed for preparing functionalized adenine derivatives, said method comprising the step of reacting a compound which contains an adenine nucleus which has been halogen substituted in the 8-position, with a compound having the general formula M.sup.+- S--(CH.sub.2).sub.n --COO.sup.- M.sup.+ wherein M.sup.+ is the ion of an alkali metal and n is an integer, the reaction being carried out in a polar aprotic solvent. Procedures for preparing macromolecularized adenine compounds are also indicated by reacting a functionalized adenine derivative with a polymer which has at least one primary or secondary aminic group in its structure. This is a division of application Ser. No. 705,012 filed July 14, 1976, U.S. Pat. No. 4,091,203.

Method for the preparation of macromolecularized adenine derivatives

A method is disclosed for preparing functionalized adenine derivatives, said method comprising the step of reacting a compound which contains an adenine nucleus which has been halogen substituted in the 8-position, with a compound having the general formula N.sup.+- S--(CH.sub.2).sub.n --CO0.sup.- M.sup.+ wherein M.sup.+ is the ion of an alkali metal and n is an integer, the reaction being carried out in a polar aprotic solvent. Procedures for preparing macromolecularized adenine compounds are also indicated by reacting a functionalized adenine derivative with a polymer which has at least one primary or secondary aminic group in its structure.

Macromolecularized adenine derivatives

A method is disclosed for preparing functionalized adenine derivatives, said method comprising the step of reacting a compound which contains an adenine nucleus which has been halogen substituted in the 8-position, with a compound having the general formula M.sup.+- S--(CH.sub.2).sub.n --COO.sup.- M.sup.+ wherein M.sup.+ is the ion of an alkali metal and n is an integer, the reaction being carried out in a polar aprotic solvent. Procedures for preparing macromolecularized adenine compounds are also indicated by reacting a functionalized adenine derivative with a polymer which has at least one primary or secondary aminic group in its structure.

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Monterotondo, Italy

Rosario Pappa