4. Organic compounds -- part of the class 532-570 series
  5. Organic compounds
  6. Oxygen containing

Bernd Heida

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Continuous method for obtaining butenes from a C 4 fraction

Chemistry of hydrocarbon compounds – Purification – separation – or recovery – By addition of extraneous agent – e.g. – solvent – etc.
Reexamination Certificate

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Continuous method for separating a C 4 cut

Mineral oils: processes and products – Chemical conversion of hydrocarbons – Cracking
Reexamination Certificate

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Method for obtaining crude 1,3-butadiene from a C 4 fraction

Chemistry of hydrocarbon compounds – Unsaturated compound synthesis – Diolefin product
Reexamination Certificate

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Method for working up crude 1,3-butadiene

Chemistry of hydrocarbon compounds – Purification – separation – or recovery – By plural serial diverse separations
Reexamination Certificate

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Process for the separation of acrylic acid

Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acids and salts thereof
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Profile ID: LFUS-PAI-P-1029619

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