Institut Francais Du Pe'trole

Centre National De La Recherche Scientifique

Elf Aquitaine Production

Societe Nationale Des Poudres Et Explosifs

Institute Francais Du Petrole

Total Raffinage Distribution S.a.

Elf Antar France

Ecole Centrale De Lyon

Chryso

Chryso (s.a.)

Pierre Le Perchec

Emmanuel F Arretz

Yves Chevalier

Bernard Fixari

Marie Abiuso

Bernard Sillion

Martin Mosquet

Jean-Pierre Guicquero

Jean-Pierre G Senet

Michel Thomas

Frederic Morel

Jean-Fran&ccedil;ois Argillier

Yannick Jolivet

Annie Audibert-Hayet

Patricia P Gauthier

Beatrice Debled

Laurent Germanaud

Didier Jamois

Pierre Louis Carrette

Roselyne Baudry

Hubert Perrot

Philippe Gros

Jeanne Elmouchnino

Martine Boulinguiez

Philippe Jost

Nicole Jaffrezic-Renault

Sylvain Brunel

Fr&eacute;d&eacute;ric Alvarez

Jean-Marc Chovelon

Method for obtaining oxacarbonyl polymers, functionalization, resulting polymers and functionalizing agent

Zwitterion derivative and application to aqueous suspension properties

The process includes the reaction of a chloro-formamidinium chloride with a polystyrene-divinylbenzene resin functionalized with primary amine groups. The resins which can be obtained according to this process may in particular have a spacer arm of general formula (IV): ##STR1## with X representing oxygen or sulphur and m being equal to 1 or 2. This spacer arm bears at its end, on the right, a primary amine group or a guanidine group.

Process for the preparation of resins with a primary amine or guanidine

Thinners for aqueous suspensions of mineral particles and hydraulic

The process includes the reaction of a chloroformamidinium chloride with a polystyrene-divinylbenzene resin functionalized with primary amine groups. The resins which can be obtained according to this process may in particular have a spacer arm of general formula (IV):

Resins with a primary amine or guanidine function

A modified or bridged asphalt composition. The composition can be obtained by treating at least one asphalt base with an acid-derived compound having at least two functional groups capable, respectively, of being grafted onto one or more sites located on two or more different aromatic entities of the asphalt base, so as to link said entities by bridging.

Asphalt compositions, method of preparation, and use

Process for the preparation of polyoxyalkylated amines

The invention involves the liquid phase hydroconversion of hydrocarbon charges containing heavy fractions, and more particularly their deep conversion, in which the charge is contacted with a dispersed catalyst in the presence of a polyaromatic additive. The catalyst is a sulfide of a hydrogenating metal (such as molybdenum, nickel or cobalt) generated in situ from a precursor. The additive has at least three aromatic cycles, has a boiling point exceeding 300.degree. C., and is added at a rate of 5 to 60% by weight based on the charge. Synergism between the catalyst and the additive makes it possible to reduce the catalyst quantity and/or improve the conversion and quality of the products.

Liquid phase catalytic hydrocarbon hydroconversion with polyaromatic

Process for producing a surface gate of an integrated electro-chemical

Silica-based substrate surface-modified by grafting covalent links of organic polysubstituted guanidinium groups, and preferably polyakylguanidinium groups. These substrates can be obtained by reacting silica with a polyalkylguanidinium anion, the silanol residual groups of silica being optionally treated with hexamethyldisilazane to stabilize the substrates. These substrates can be used as chlorination and esterification catalysts.

Silica-based substrates modified by grafting of polyalkylguanidinium

A process for the thermal conversion of various fossil organic materials such as heavy crude oils, heavy petroleum fractions or refining residues, is described. According to the invention, the charge is subjected to thermal processing in the presence of a minor proportion of at least one radical-generating monooxygenated compound, containing at least one heteroelement selected from sulfur, and nitrogen and in which the oxygen is borne by said heteroelement. The conversion is improved with a composition comprising a hydrogen donor diluent and this monooxygenated compound in a weight ratio of 0.2:1 to 400:1. The invention is useful in the petroleum industry and the coal industry and particularly in the process of hydrovisbreaking.

Process for the thermal conversion of heavy petroleum fractions and

New surface-active compounds of the sulfobetaines group are manufactured. They comply with the general formula: ##STR1## wherein each of R.sub.1, R.sub.2 and R.sub.3 is substantially a hydrocarbon radical, each of R.sub.4 and R.sub.5 is a hydrogen atom or substantially a hydrocarbon radical and R.sub.6 is a hydrogen atom or a hydrocarbon radical, R.sub.1 to R.sub.6 radicals containing together from 12 to 30 carbon atoms, n is an integer equal to 2 to 3, Z may be a CH.sub.3 radical or a hydroxy group, p may be 0 or 1 with, when Z is a hydroxy group and p is equal to 1, a value of 1 for m and for q; when Z is a methyl radical, with a value of 1 for p, a value of 2 for m and a value of 0 or 1 for q and, when p=0, a value of 2, 3 or 4 for the sum (m+q). These new surfactants are useful in enhanced oil recovery as micellar systems consisting of aqueous solutions and microemulsions.

Surface-active compounds of the sulfobetaines family, their manufacture

Process for manufacturing aryl ethers having different substituents on

Growing community of inventors

Lyons, France

Pierre Le Perchec