Lonza S.p.a.

Eniricerche S.p.a.

Alma Mater Studiorum-universitá Di Bologna

Enichem Synthesis S.p.a

Alusuisse Italia S.p.a.

Other

Centre National De La Recherche Scientifique

Rhone-poulenc Chimie

Snamprogetti S.p.a.

Novamont S.p.a.

Université De Lille

Rhodia Fiber & Resin Intermediates

Ministero Dell 'universita'e Della Ricerca Scientifica E Technologica

Ecole Centrale De Lille

Versalis S.p.a.

Fabrizio Cavani

Stefania Albonetti

Gilbert Blanchard

Paolo Burattin

Ferruccio Trifiro

Gianluca Mazzoni

Giuseppe Bellussi

Virginio Arrigoni

Angela Carati

Carlo Fumagalli

Alfredo Riva

Simone Ligi

Mario G Clerici

Gianni Girotti

Franck Dumeignil

Sébastien Paul

Francesco Cino Matacotta

Gianluca Calestani

Giuseppe Terzoni

Giuseppe Fornasari

Nicola Vecchini

Carlo Lucarelli

Francesca Pierelli

Francesco Santarelli

Roberto Leanza

Cristiana Cesari

Rita Mazzoni

Tommaso Tabanelli

Robert Wojcieszak

Francesco Puzzo

Andrea Vassoi

St&eacute;fano Masetti

Valerio Zanotti

Barbara Panzacchi

Federico Ghelfi

Roberto Ghezzi

Giancarlo Stefani

Mario Gabriele Clerici

Irene Tosi

Juliana Velasquez Ochoa

Erika Farci

A process for obtaining higher aliphatic alcohols starting from aliphatic primary alcohols by condensation reactions is disclosed. Specifically, the process comprises a step in which an aliphatic primary alcohol is contacted in a homogeneous phase with a catalyst mixture comprising a transition metal, a base and an additive; specifically, this additive can be selected from the classes of compounds of the isoquinolines N-oxide, quinolines N-oxide, pyridines N-oxide, benzoquinones, naphthoquinones, or TEMPO. In particular, the process can be carried out by contacting said aliphatic primary alcohol with a catalyst of a recycled transition metal, with a freshly added base and with a recycled additive of the aforementioned type.

Process for the transformation of primary aliphatic alcohols into higher aliphatic alcohols

A process of preparation of carboxylic acids by oxidative cleavage of compounds having substituted or non-substituted, linear or branched, saturated or unsaturated alkyl chains containing at least one vicinal diol or an epoxide in the presence of an oxidant comprising molecular oxygen and a heterogeneous catalyst comprising a copper oxide.

Production of carboxylic acids from vicinal diols

A method is for the preparation of furoic acid or of one of its derivatives of formula (I): in which R, R, Rand Rrepresent, independently of each other, a hydrogen atom, a linear or branched C-Calkyl group, a &#x2014;C(&#x2550;O)&#x2014;H group or a &#x2014;COOH group, by heterogeneous catalytic oxidation of furfural or a derivative thereof of formula (II). The oxidation is carried out in the presence of a supported catalyst based on gold nanoparticles, and in a non-alkaline aqueous medium. A composition useful in the method includes at least furfural and supported gold nanoparticles.

Furoic acid preparation method

Disclosed is a process for the preparation of a modified vanadium/phosphorus mixed oxide catalyst for the partial oxidation of n-butane to maleic anhydride. The catalyst comprises vanadyl pyrophosphate as main component and niobium as a promoter element in an amount corresponding to an atomic ratio of vanadium to niobiurn in the range of 250:1 to 60:1. The catalyst exhibits improved activity, improved yield of maleic anhydride, and optimal performance from the very beginning of its catalytic lifetime.

Niobium-doped vanadium/phosphorus mixed oxide catalyst

Catalytic compositions of oxides of titanium, vanadium and tin that are suitable for the production of phthalic anhydride by oxidizing o-xylene and/or naphthalene in the gas phase. The catalysts exhibit excellent activity and selectivity. The catalyst contains 2 to 15 percent by weight (calculated as VO) of vanadium, 1 to 15 percent weight (calculated as SnO) of tin and 70 to 97 percent by weight (calculated as TiO) of titanium. In a preferred embodiment the catalyst also contains up to 5 percent by weight (calculated as MO) of at least one alkali metal, preferably lithium, potassium or rubidium, and more preferably cesium. In an even more preferred embodiment, cesium is present in an amount of from 0.01 to 2 percent by weight (calculated as CsO).

Titanium-vanadium-tin comprising catalyst and process for the preparation of phthalic anhydride

Active vanadium/phosphorus mixed oxide catalyst for the conversion of non-aromatic hydrocarbons, e.g., n-butane, into maleic anhydride. The catalyst is prepared from the catalyst precursor, that is, prepared by the reaction of a source of vanadium in an organic medium in the presence of a phosphorus source. The organic medium is (a) isobutyl alcohol or a mixture of isobutyl alcohol and benzyl alcohol and (b) a polyol. The catalyst precurso is transformed into the active catalyst by an activation process that includes a heat treatment that includes applying a temperature of up to 600&#xb0; C.

Vanadium/phosphorus mixed oxide catalyst

A process for the preparation of a vanadium/phosphorus mixed oxide catalyst precursor is described, comprising the reaction of a vanadium source in selected organic media in the presence of a phophorus source. The medium comprises: (a) isobutyl alcohol or a mixture of isobutyl alcohol and benzyl alcohol and (b) a polyol in the weight ratio (a) to (b) of 99:1 to 5:95. After its activation, the vanadium/phosphorus mixed oxide catalyst precursor is an excellent catalyst in the conversion of non-aromatic hydrocarbons like n-butane to malic anhydride.

Vanadium/phosphorus mixed oxide catalyst precursor

Catalysts for the full oxidation of volatile organic compounds

Ammoxidation catalysts for fluidized/moving bed reactors

Method for preparing ammoxidation catalysts

Mixed oxide vanadium/antimony/titanium ammoxidation catalysts, particularly suited for the ammoxidation of alkanes and exhibiting X-ray diffraction spectra which are characteristic of a crystallographic phase of rutile TiO.sub.2, are prepared by (a) dissolving respective soluble compounds of vanadium, of antimony and of titanium in at least one saturated alcohol, (b) contacting the alcoholic solution thus obtained with water and precipitating the mixed oxide therefrom, and (c) separating and calcining the mixed oxide thus precipitated.

Vanadium/antimony/titanium mixed oxide and process of use in vapor phase

A vanadium/phosphorus mixed oxide catalyst precursor is transformed into the active catalyst for the production of maleic anhydride. The activation takes place in a fluidized bed and includes the steps of (a) initially heating the precursor; (b) further heating under superatmospheric pressure; (c) isothermal stage at superatmospheric pressure; and, finally, (d) cooling the activated catalyst obtained. Catalysts activated according to this procedure show high performance in the conversion of non-aromatic hydrocarbons to maleic anhydride.

Process for the transformation of a vanadium/phosphorus mixed oxide

Vanadium/antimony/tin mixed oxides having the empirical formula (I):

Mixed V/Sb/Sn oxide ammoxidation catalysts

Preparation of VSb.sub.a aTi.sub.b O.sub.x ammoxidation catalysts

This invention provides a process for the selective production of cumene comprising reacting benzene with propylene in the presence of a type-Y zeolite modified by treatment with a phosphorous compound. This invention also provides a process for the transalkylation of a polyalkylated benzene which comprises reacting the polyalkylated benzene in the presence of benzene and a type-Y zeolite modified by treatment with a phosphorous compound.

Catalyst for the alkylation of aromatic compounds and process which

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Modena, Italy

Fabrizio Cavani