Eniricerche S.p.a.

Other

Enichem Synthesis S.p.a

Agip Petroli

Agip S.p.a.

Enitecnologie S.p.a.

Alessandro Lezzi

Arnaldo Roggero

Ugo Pedretti

Sandra Cobianco

Francesco P La Mantia

Cesarina Bonfanti

Thomas Paul Lockhart

Alberto Guarneri

Emilio Gatti

Armando Marcotullio

Vincenzo Citta'

Enzo Pitoni

Riccardo Rausa

Alberto Forlini

Guido Galbariggi

A description follows of an aqueous dispersion of heavy oil residues, suitable for undergoing combustion with a low emission of SO, comprising: (a) a heavy oil residue; (b) a dispersing agent; (c) a desulfurizing agent selected from CaCO, MgCO, dolomite and relative mixtures; (d) a desulfurizing agent with stabilizing and anti-corrosive properties selected from MgO, Mg(OH), CaO, Ca(OH)and relative mixtures; (e) water; the weight percentage of (e) with respect of the sum of (a)+(e) being at least 15%.

Aqueous dispersions of heavy oil residues

Process for reducing the adsorption of hydrosoluble polymers onto rock matrix, which comprises putting the rock matrix in contact with an aqueous solution of polymers containing sacrificial agents, preferably selected from ionic and non-ionic oligomeric surface-active agents. In the preferred embodiment the surface-active agents are non-ionic.

Process for reducing the adsorption of polymers onto rock matrix

Block copolyethers having general formula (I):

Block copolymers, their preparation and their use as lubricants

Process for the consolidation of sand in a well which produces fluids, particularly oil and/or gas, comprising the following steps:

Process for the consolidation of sand

A thermotropic polyesterimide, in which the liquid-crystalline phase is of nematic structure within a useful temperature range, consists of units of formula: ##STR1## the units being in the following ratios:

Thermotropic polyesterimide, a process for its preparation, and its use

Water insoluble polymers containing hydrophilic pendant moieties ending with a chelating group are disclosed. The polymers are useful in the purification of water polluted by heavy metals such as mercury and lead. The polymers have the general formula P--(--(--O--R).sub.n --(NH--Q).sub.p --F).sub.m where P is a polymeric matrix capable of reacting with a polyalkylene glycol or an alkylene oxide having such a structure and molecular weight as to be insoluble in water; R is either --CH.sub.2 CH.sub.2 -- or mixtures of --CH.sub.2 CH.sub.2 -- and --CH.sub.2 CH(CH.sub.3)--, with the molar ratio of both units in the mixture being at least 3:1; n is 3 to 50; m is a numeral such that the % by weight of all of the --(--(--O--R--).sub.n (NH--Q).sub.p --F hydrophilic chains is higher than 1% by weight of the total weight of (I); Q is a C.sub.2 -C.sub.6 difunctional aliphatic or aromatic hydrocarbon radical; p is 0 or 1; F is a chelating group selected from dithiocarbamate and methyl-thiourea when p is 1, or from thiol and isothiouronium when p is 0.

Polymer containing chelating groups, process for preparing it and its

A thermotropic copolyester, which displays a liquid-crystal phase of nematic type, within a desired temperature range, contains units deriving from:

Thermotropic copolyester, process for preparing it and use thereof in

An improved process for preparing carboxylated 2-allyl-phenols of general formula (I): ##STR1## is disclosed, which consists of a first step of simultaneous esterification and etherification of a carboxylated phenol, subsequent rearrangement of the resulting product to yield allyl-carboxylated allyl-phenol and end saponification of the latter into carboxylated 2-allyl-phenol.

Growing community of inventors

Milan, Italy

Alessandro Lezzi