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Archive | 2001

Conditioning of ion exchanger, used as catalyst, e.g. in bisphenol production, involves repeated washing with conductivity water, draining, mixing with e.g. phenol and drying by circulation through washing and distillation units

Prein Michael; Boediger Michael; Neumann Rainer; Heydenreich Frieder; Fennhoff Gerhard


Archive | 2001

Use of a desorber with optionally series-connected distillation unit for separation of bis-phenol, e.g. Bisphenol A, and phenol from adducts of bis-phenol and phenol

Neumann Rainer; Heydenreich Frieder; Prein Michael; Lanze Rolf; Boediger Michael


Archive | 2001

Behälter aus Polycarbonat

Horn Klaus; Kuehling Steffen; Hufen Ralf; Lanze Rolf; Prein Michael; Neumann Rainer; Kauth Hermann; Heydenreich Frieder; Osselaer Tony Van


Archive | 2000

Polycarbonate used for substrates for optical data storage is prepared from phosgene and sodium bisphenolate with the exclusion of oxygen in an interphase process

Kuehling Steffen; Lanze Rolf; Prein Michael; Neumann Rainer; Kauth Hermann; Kords Christian; Heydenreich Frieder; Osselaer Tony Van


Archive | 1999

Start-up of bisphenol A production over sulfonated crosslinked polystyrene resin uses higher phenol concentration and lower acetone concentration and throughput than in optimum long-term operation

Boediger Michael; Neumann Rainer; Heydenreich Frieder; Prein Michael; Fofonka Hans-Ludwig


Archive | 2015

Procedimiento para la separación de fenol a partir de corrientes que contienen fenol a partir de la producción de bisfenol A

Prein Michael; Eek Rob; Audenaert Raymond


Archive | 2013

METHOD FOR PRODUCING BISPHENOL

Neumann Rainer; Lanze Rolf; Heydenreich Frieder; Boediger Michael; Prein Michael


Archive | 2012

Policarbonatos con buena humectabilidad

Meyer Alexander; Einberger Helmut; Ebert Wolfgang; Prein Michael; Haese Wilfried; Franz Uli; Konrad Stephan


Archive | 2012

Regeneración de intercambiadores de iónes ácidos

Prein Michael; Muennich Christian; Blaschke Ulrich


Archive | 2011

PROCEDIMIENTO DE CRISTALIZACION PARA LA PREPARACION DE BISFENOL A.

Muennich Christian; Blaschke Ulrich; Eek Rob; Prein Michael; Audenaert Raymond; Tytgat Gert

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