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Archive | 1980

Separating toluene diisocyanate and/or higher boiling solvents from distillation residues of the toluene diisocyanate manufacture using a fluidized bed

Waldemar Koehler; Bernd Dipl Chem Dr Blumenberg; Ludwig Vogel; Eckhard Hetzel


Archive | 1980

Fluidised-bed recovery of tolylene diisocyanate and/or high boiling solvents from distillation residues of the production of tolylene diisocyanate

Waldemar Koehler; Bernd Dr. C; O Bwc Blumenberg; Ludwig Vogel; Eckhard Hetzel


Archive | 1974

CONTINUOUS MANUFACTURE OF PHTHALIMIDE

Eckhard Hetzel; Ludwig Vogel; Gerhard W Dr Rotermund; Hans Christoph Dr Horn


Archive | 1974

VERFAHREN ZUR HERSTELLUNG VON TETRAHYDROFURAN

Eckhard Hetzel; Hans-Martin Dipl Chem Dr Weitz; Ludwig Vogel; Juergen Dipl Chem Dr Hartig


Chemie Ingenieur Technik | 1976

Verfahrenstechnische Probleme bei der Verfahrensentwicklung

E. Bartholomé; Eckhard Hetzel; H. Ch. Horn; M. Molzahn; G. W. Rotermund; L. Vogel


Archive | 1980

Continuous preparation of isatoic anhydride

Gerhard Kilpper; Johannes Grimmer; Peter Dr. Tonne; Hans Christoph Dr Horn; Eckhard Hetzel


Archive | 1975

Manufacture of tetrahydrofuran from the diacetate of 1,4-butanediol

Eckhard Hetzel; Hans-Martin Dipl Chem Dr Weitz; Ludwig Vogel; Juergen Dipl Chem Dr Hartig


Archive | 1980

PROCESS FOR THE CONTINUOUS PRODUCTION OF ISATOIC ANHYDRIDE

Gerhard Kilpper; Johannes Grimmer; Peter Dr. Tonne; Hans Christopf Dr. Horn; Eckhard Hetzel


Archive | 1980

Verfahren zur kontinuierlichen Herstellung von Isatosäureanhydrid

Gerhard Kilpper; Johannes Grimmer; Peter Dr. Tonne; Hans Christopf Dr. Horn; Eckhard Hetzel


Archive | 1979

Gewinnung von toluylendiisocyanat und/oder hoehersiedenden loesungsmitteln im wirbelbett aus destillationsrueckstaenden der toluylendiisocanat-herstellung Production of toluene diisocyanate and / or high-boiling solvents in the fluidized bed of destillationsrueckstaenden of toluene diisocyanate-making

Waldemar Koehler; Bernd Dipl Chem Dr Blumenberg; Ludwig Vogel; Eckhard Hetzel

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