Institution
Solvay
Company•Brussels, Belgium•
About: Solvay is a company organization based out in Brussels, Belgium. It is known for research contribution in the topics: Catalysis & Polymer. The organization has 6083 authors who have published 7004 publications receiving 105745 citations.
Topics: Catalysis, Polymer, Polymerization, Alkyl, Aqueous solution
Papers published on a yearly basis
Papers
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TL;DR: Effects on nicotine self-administration and on nicotine and ethanol reinstatement are demonstrated for the first time and add to a body of evidence implicating the 5-HT(6) receptor as a viable target for the control of drug abuse.
37 citations
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TL;DR: In this article, a new type of sulfobetaine with double alkyl polyoxyethylene (n) ether chains, dicoconut oil alcohol polyoxethylene ether methylhydroxylpropyl sulfobetsaine (diC12−14E2.2HSB) was synthesized using a commercial nonionic surfactant, coconut oil alcohol, as raw material and its properties for enhanced oil recovery in the absence of alkali was studied.
Abstract: A new type of sulfobetaine with double alkyl polyoxyethylene (n) ether chains, dicoconut oil alcohol polyoxethylene (n) ether methylhydroxylpropyl sulfobetaine (diC12–14E
n
HSB) was synthesized using a commercial nonionic surfactant, coconut oil alcohol polyoxethylene (n) ether, as raw material and its properties as a surfactant for enhanced oil recovery (EOR) in the absence of alkali was studied. The purified product is a mixture of homologues with mainly C12/C12, C12/C14 and C14/C14 alkyl chains and widely distributed EO chains (n = 2.2 on average) with an average molar mass of 742.6 g/mol. The diC12–14E2.2HSB has an improved aqueous solubility at 25 °C compared with didodecylmethylhydroxylpropyl sulfobetaine (diC12HSB), a homologue without an EO chain, and is highly surface active as reflected by its low CMC (4.6 × 10−6 mol/L), high saturated adsorption (6.8 × 10−10 mol/cm2) and small cross sectional area (0.24 nm2/molec.) at the air/water interface. With a hydrophile–lipophile balance well matched with Daqing crude oil/connate water system, the sulfobetaine can reduce Daqing crude oil/connate water interfacial tension to ultra-low values at 45 °C in the absence of alkali, and displays a low saturated adsorption at the sandstone/water interface (0.0024 mmol/g), reduced by 69 and 92 % respectively in comparison with that of the corresponding carboxyl betaine, diC12–14E2.2B and its homologue without an EO chain, didodecylmethylcarboxyl betaine (diC12B). With these excellent properties diC12–14E2.2HSB gives a high tertiary recovery, 18.4 % original oil in place, when mixed with other hydrophobic and hydrophilic sulfobetaines in surfactant-polymer (SP) flooding free of alkali. The insertion of EO chains in combination with the replacement of carboxyl betaine by sulfobetaine is therefore very efficient for improving the properties of the double chain hydrophobic carboxyl betaines as surfactants for SP flooding free of alkali.
37 citations
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06 Mar 2008TL;DR: In this article, a process for manufacturing dichloropropanol via reaction between glycerol and/or monochloropanediol and a chlorinating agent in a reactor which is supplied with one or more liquid streams is described.
Abstract: Process for manufacturing dichloropropanol via reaction between glycerol and/or monochloropropanediol and a chlorinating agent in a reactor which is supplied with one or more liquid streams, in which the sum of the glycerol and monochloropropanediol contents in all the liquid streams introduced into the reactor is less than 50 wt % and in which all the liquid streams introduced into the reactor comprise at least one liquid recycling stream, the recycling stream forming at least 10 wt % of all the liquid streams introduced into the reactor.
37 citations
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19 May 2006TL;DR: In this paper, a method for making chlorohydrin, which consists in reacting a polyhydroxylated aliphatic hydrocarbon, an ester of a poly-hydroxylated alphatic hydrocarbons or a mixture thereof, with a chlorinating agent, in the presence of a liquid phase comprising heavy compounds other than polyhroxyl-aliphatic polymers, was described.
Abstract: The invention concerns a method for making chlorohydrin, which consists in reacting a polyhydroxylated aliphatic hydrocarbon, an ester of a polyhydroxylated aliphatic hydrocarbon or a mixture thereof, with a chlorinating agent, in the presence of a liquid phase comprising heavy compounds other than polyhydroxylated aliphatic hydrocarbon and whereof the boiling point under a pressure of 1 bar absolute is not less than 15 °C higher than the boiling point of the chlorohydrin under a pressure of 1 bar absolute
36 citations
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21 Aug 1998TL;DR: Bimolecular coated calcium carbonate and a process for controlled surface treatment of calcite according to which an amount of coating determined from the mean particle diameter (dp) of the calcite is contacted with the calcate particles are discussed in this article.
Abstract: Bimolecular coated calcium carbonate and a process for controlled surface treatment of calcium carbonate according to which an amount of coating determined from the mean particle diameter (dp) of the calcium carbonate is contacted with the calcium carbonate particles. The way in which the amount of coating agent is determined enables purposeful control of the properties of the coated calcium carbonate particles to adapt them for use as functional filling materials in different technical applications.
36 citations
Authors
Showing all 6091 results
Name | H-index | Papers | Citations |
---|---|---|---|
Adi F. Gazdar | 157 | 776 | 104116 |
Mohammad Khaja Nazeeruddin | 129 | 646 | 85630 |
Jack P. Antel | 105 | 519 | 43950 |
Philippe Dubois | 101 | 1098 | 48086 |
Enrico Drioli | 95 | 987 | 37962 |
Martin Winter | 93 | 751 | 45506 |
Gian F. Giudice | 93 | 264 | 50392 |
Johannes Hebebrand | 91 | 581 | 38408 |
Michael Graetzel | 89 | 360 | 43269 |
Andrew J. Martin | 84 | 819 | 36203 |
Alan D. Rogol | 81 | 461 | 24865 |
Anthony L. Spek | 81 | 1090 | 59190 |
William J. Tremaine | 80 | 282 | 24233 |
Marc Henneaux | 76 | 411 | 27840 |
Stephen Lam | 76 | 413 | 20693 |