Method for producing and purifying 1,3-butadiene

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 10766846
APP PUB NO 20190300470A1
SERIAL NO

16341500

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

The invention relates to a method for producing butadiene that is fed with a butanediol feedstock, with said method comprising at least:

    a) An esterification step comprising: A reaction section;A separation section producing a butanediol diester effluent, a water effluent, and a carboxylic acid effluent; b) An esterification pyrolysis step;c) A separation step comprising at least: A cooling section producing a liquid pyrolysis effluent and a vapor pyrolysis effluent;A gas-liquid washing section that is fed at the top with a fraction of the carboxylic acid effluent that is obtained from the separation section of step a) and at the bottom with said vapor pyrolysis effluent and producing at the top a butadiene effluent and at the bottom a washing effluent;in which a carboxylic-acid-rich stream comprising at least a portion of the liquid pyrolysis effluent is recycled to step a); d) A separation step.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELINCLERMONT-FERRAND
IFP ENERGIES NOUVELLESRUEIL-MALMAISON

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Couderc, Sophie Neuilly sur Seine, FR 11 2
Dastillung, Rejane Lyons, FR 15 118
Fauvarque, Nuytien Claire Clermont-Ferrand, FR 1 0
Jacquin, Marc Lyons, FR 30 194
Pacheco, Nuno Clermont-Ferrand, FR 15 39

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
7.5 Year Payment $3600.00 $1800.00 $900.00 Mar 8, 2028
11.5 Year Payment $7400.00 $3700.00 $1850.00 Mar 8, 2032
Fee Large entity fee small entity fee micro entity fee
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00