Eniricerche S.p.a.

Anic S.p.a.

Snamprogetti S.p.a.

Enichem Augusta S.p.a.

Enichem Synthesis S.p.a

Agip S.p.a.

Eniricherche S.p.a.

Eniricerche S.p.a.-and- Snamprogetti S.p.a.

Enimont Augusta S.p.a.

Anio S.p.a.

Edoardo Platone

Aldo Prevedello

Lucio Faggian

Maurizio Brunelli

Elio Donati

Renato De Simone

Armando Marcotullio

Riccardo Rausa

Enrico Borgarello

Calogero Genova

Morello Morelli

Cosimo Franco

Carlo Neri

Arnaldo Roggero

Francesco Minisci

Filippo M Carlini

Fabrizio Bonaccorsi

Maurizio Castellano

Giancarlo Serboli

Dario Ercolani

Irena Blute

Vincenzo Redaelli

Laura Tinucci

Emilio Picchi

A process for preparing a sulfonated dispersant from a petroleum asphalt fraction, comprising:

Process for preparing a sulfonated dispersant from petroleum asphalt

A concrete composition contains hydraulic cement, inerts, water and superfluidifying additive obtained by salifying, in the form of an alkaline metal, alkaline earth metal or ammonium salt, the sulphonated and oxidised products resulting from the reaction between sulphur trioxide and fuel oil deriving from steam cracking. This concrete composition has improved workability characteristics and enables concretes to be obtained generally possessing greater strength and durability.

Concrete composition containing a superfluidifying additive

A process for separating and recovering paraffin sulphonic acids from mixtures with water and sulphuric acid is described, consisting of: bringing such a mixture into contact under extraction conditions with a saturated aliphatic or cycloaliphatic liquid hydrocarbon; separating an aqueous liquid phase containing sulphuric acid from an organic liquid phase consisting of the extraction solvent containing the paraffin sulphonic acids; and recovering the paraffin sulphonic acids from said organic liquid phase. The process is particularly applicable to products obtained from processes involving the sulphoxidation of paraffins with sulphur dioxide and oxygen, catalyzed by U.V. radiation.

Process for purifying paraffin sulphonic acids

A fluidizing and dispersing additive for coal-water mixtures, constituted by an ethoxylated adduct of either natural humic acids, or of humic acids deriving from partial coal oxidation.

Fluidizing and dispersing additives for coal-water dispersions

The mixture from which sulphuric acid must be separated according to the present invention are those which derive from the sulphoxidation of (C.sub.12 -C.sub.8)-n-paraffins with SO.sub.2 and O.sub.2 in the presence of water and of U.V. light at a temperature comprised within the range of from 25 to 50.degree. C., after the removal of n-paraffins, which separate spontaneously, and of SO.sub.2 excess. In order to remove said sulphuric acid, the refined mixture, possibly diluted with water, is mixed with one or more halogenated solvents, the separation being obtained of water and sulphuric acid from the refined mixture, to the total mixture (with the two phases) a cosolvent is added, which is constituted by alcohols or ethers, with the separation being obtained of a phase constituted by H.sub.2 O and H.sub.2 SO.sub.4, which is removed. The residual organic phase, practically free from sulphuric acid, is submitted to the removal of solvents and cosolvents by means of conventional techniques.

Process for the separation of sulphuric acid from aqueous mixtures

Storage-stable, pumpable, concentrated dispersions of coal in water contain a non-ionic additive constituted by a polymer containing polyethoxy chains grafted onto suitably functionalized polystyrenes having a molecular weight comprised within the range of from 500 to 15000.

Stabilizer and fluidifier additives for dispersions of coal in water

Process for the catalytic hydroformylation of olefins in which an olefin is reacted with hydrogen and carbon monoxide, with the process being carried out by operating in a liquid, aqueous-organic reaction medium, in the presence of a water-soluble complex catalyst containing a metal active in the hydroformylation, wherein said aqueous-organic medium is in the form of a microemulsion consituted by an oil phase, an aqueous phase, a surfactant and a co-surfactant, with said oil phase constituting the external phase of said microemulsion, and said aqueous phase constituting the internal phase of said microemulsion.

Process for the catalytic hydroformylation of olefins

A hybrid diesel fuel composition consisting of a conventional diesel fuel, at least one surface-active agent, water, and a consistent proportion of fusel oil.

Hybrid diesel fuel composition

A single-phase, either isotropic or anisotropic formulation is disclosed, which contains perfluorinated oil and one or more surfactant(s), is useful as an excipient for cosmetic and dermatologic formulations and is characterized in that at least one surfactant is selected from those having the following general formula: ##STR1## wherein: R.sub.F is an F--(CF.sub.2 --CF.sub.2).sub.i -- group;

Single-phase composition containing a perfluorinated oil and one or more

Mixtures of C.sub.12 -C.sub.18 n-paraffins with paraffinsulfonic acids having the same number of carbon atoms, water and sulfuric acid, and obtained by sulfoxidation of said paraffins with sulfur dioxide and oxygen in the presence of water and ultraviolet radiation are stripped of their excess sulfur dioxide and decanted to separate most of the paraffins, and obtain a residual mixture. The residual mixture is fed with sulfuric acid until a two-phase system forms or at least until the mixture becomes turbid, and the turbid mixture or that floating on the heavy water-sulfuric acid phase is extracted with supercritical carbon dioxide, which removes with it the paraffins, which can be reused in the sulfoxidation process.

Process for extracting paraffins from their mixtures with

The invention relates to a process for the extraction of paraffins from mixtures obtained by the sulfoxidation of paraffins having a number of carbon atoms within the range of 12 to 18, which is characterized in that carbon dioxide is used as the solvent under supercritical conditions.

Process for the extraction of paraffins from mixtures thereof with

A process for preparing an alkaline metal salt of a polyethoxycarboxylic acid defined by the formula

Process for preparing alkaline metal salts of polyethoxycarboxylic acids

A process for the selective side-chain halogenation of alkylaromatic hydrocarbons, consisting of reacting the hydrocarbon with an N-halogenoamine in the presence of a proton donor and a metal ion.

Process for the side-chain polyhalogenation of polyalkylaromatic

2,5-Dimethyl-2,4-hexadiene is prepared by dehydrating 2,5-dimethyl-2,5-hexanediol in liquid phase. The reaction takes place by contacting 2,5-dimethyl-2,5-hexanediol, melted or dissolved in an appropriate solvent, with acids, heating the mixture at a temperature of 100.degree. C.-160.degree. C. and distilling off water from the reaction environment as it is being formed. The pressure can range between 1 and 10 bars.

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Asti, Italy

Edoardo Platone