Method for cleaning deposits from equipment that have accumulated during a method for recovering nmp, by the introduction of hot water and agitation
AssigneeBASF SE
InventorsAurelie Alemany, Maximilian Vicari, Tanja Kirchner, Frank Steglich
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Abstract
A process is proposed for cleaning an apparatus to remove deposits from a process for the recovery of purified N-methylpyrrolidone (NMP) by evaporating NMP from a contaminated NMP stream which is obtained in a process for the extractive separation of acetylene from the reaction mixture of a partial oxidation of hydrocarbons after expulsion of the acetylene as a gas, wherein hot water is passed into the apparatus and is stirred.
Claims16
-9. (canceled)
A process for cleaning an apparatus to remove deposits from a process for the recovery of purified N-methylpyrrolidone (NMP) which comprises evaporating NMP from a contaminated NMP stream which is obtained in a process for the extractive separation of acetylene from the reaction mixture of a partial oxidation of hydrocarbons after expulsion of the acetylene as a gas, wherein hot water is passed into the apparatus and is stirred.
Dependencies are inferred from the claim text.