Decarboxylation, Hydrogenation Or Formation Of Carbon-to-carbon Unsaturation Patents (Class 562/116)
  • PROCESS FOR PREPARING AN INTERNAL OLEFIN SULFONATE
    Publication number: 20140336409
    Abstract: The invention relates to a process for preparing an internal olefin sulfonate, comprising sulfonating an internal olefin into sulfonated internal olefin followed by contacting sulfonated internal olefin with a base containing solution, wherein the molar ratio of internal olefin to solvent for the base is higher than 0.06. Further, the invention relates to an internal olefin sulfonate obtainable by said process.
    Type: Application
    Filed: December 21, 2012
    Publication date: November 13, 2014
    Inventors: Julian Richard Barnes, Hendrik Dirkzwager, Robert Moene, Jasper Roelf Smith
  • Production of Alkane Sulfonates
    Publication number: 20130253219
    Abstract: A process for the production of olefin sulfonates is presented. The process comprising generating olefins from normal alkanes through a dehydrogenation unit to produce a mixture of alkanes and alkenes. The mixture is sulfonated to react the olefins and generate olefin sulfonates. The olefin sulfonates are separated from the normal alkanes to produce a product stream, with the normal alkanes recycled to the dehydrogenation unit.
    Type: Application
    Filed: March 22, 2012
    Publication date: September 26, 2013
    Applicant: UOP LLC
    Inventors: Mark G. Riley, Stephen W. Sohn
  • Chemically amplified positive resist composition, patterning process, and acid-decomposable keto ester compound
    Patent number: 8426110
    Abstract: A chemically amplified positive resist composition comprises an acid-decomposable keto ester compound of steroid skeleton which is insoluble in alkaline developer, but turns soluble in alkaline developer under the action of acid. The composition is exposed to EB, deep-UV or EUV and developed to form a pattern with a high resolution and improved LER.
    Type: Grant
    Filed: January 31, 2012
    Date of Patent: April 23, 2013
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Takeru Watanabe, Tomohiro Kobayashi, Katsuya Takemura, Jun Hatakeyama
  • Manufacture of hydrofluoroalkanesulfonic acids
    Patent number: 7897807
    Abstract: A process for manufacture of hydrofluoroalkanesulfonic acid with at least one hydrogen bonded to the carbon atom adjacent to the carbon atom bonded to the sulfonic acid group comprising: contacting a fluoroolefin with sulfite in an aqueous solution adjusted to about pH 4 to pH 12; removing water from the solution to form a solid; directly treating the solid with oleum; and distilling the hydrofluoroalkanesulfonic acid therefrom. Also a process for manufacture of potassium hydrofluoroalkanesulfonate in high purity is described.
    Type: Grant
    Filed: February 22, 2010
    Date of Patent: March 1, 2011
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Mark Andrew Harmer, Christopher P. Junk, Zoe Schnepp
  • PROCESS FOR OBTAINING HIGHLY SOLUBLE LINEAR ALKYLBENZENE SULFONATES
    Publication number: 20090299091
    Abstract: The present invention relates to a process for obtaining a highly soluble linear alkylbenzene sulfonate with an adjustable 2-phenyl isomer content and an extremely low sulfonation color. In which a catalytic system based on highly stable solid catalysts and with a high selectivity for linear monoalkylated compounds is used.
    Type: Application
    Filed: March 16, 2006
    Publication date: December 3, 2009
    Applicant: Petroquimica Española, S.A. (Petresa) °
    Inventors: José Luis Goncalvez de Almeida, José Luis Berna Tejero
  • Bromine catalysed oxidation processes
    Patent number: 5847203
    Abstract: In plant for the production and processing of an aromatic carboxylic acid such as terephthalic acid, at least some of the plant components (especially those exposed to an acidic reaction medium at elevated temperatures and pressures in excess of 180.degree. C. and 8 bara respectively) are fabricated from duplex stainless steels and the conditions under which such plant components are exposed to the reaction medium are controlled to maintain a low corrosion rate.
    Type: Grant
    Filed: January 23, 1995
    Date of Patent: December 8, 1998
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Alan Pennington, Robert Francis Smith