人工皮革製造における溶剤ＤＭＦ回収プロセスの開発　ＤＭＦ水溶液におけるＤＭＦの分解速度

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タイトル別名
  • Development of DMF recovery process in man-made leather production. DMF decomposition rate in DMF aqueous solution.
  • ジンコウ ヒカク セイゾウ ニ オケル ヨウザイ DMF カイシュウ プロセス
  • DMF decomposition rate in DMF aqueous solution
  • DMF水溶液におけるDMFの分解速度

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説明

In man-made leather production, DMF is important as a solvent of polyurethane and then is discharged as aqueous solution. DMF is usually recovered by vacuum distillation from the solution, but in this step DMF is decomposed hydrolytically into formic acid and dimethylamine. To suppress DMF decomposition, the distillation temperature must be lowered. Experiments were carried out on DMF decomposition rate to confirm the validity of vacuum distillation, and the results showed the temperature dependence of DMF decomposition.

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