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Friedrich Kolkmann

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Publication

Featured researches published by Friedrich Kolkmann.

Archive | 1987

Process for working up heavy metal-containing residues originally from the decontamination of crude phosphoric acid

Günther Dr. Schimmel; Reinhard Dipl Chem Dr Gradl; Friedrich Kolkmann

Archive | 1986

Method for converting heavy metal-containing residues into solid matter which can be dumped.

Friedrich Kolkmann; Günther Dr. Schimmel; Reinhard Dipl Chem Dr Gradl

Archive | 1985

Verfahren zur ueberfuehrung schwermetallhaltiger rueckstaende in feste deponiefaehige produkte

Friedrich Kolkmann; Guenther Dipl Chem Dr Schimmel; Reinhard Dipl Chem Dr Gradl

Process for working up dusts which are produced in the electrothermal production of phosphorus. | 1990

Process for working up dusts which are produced in the electrothermal production of phosphorus

Friedrich Kolkmann; Günther Dr. Schimmel; Johannes Scheffer

Archive | 1989

Method for treating dust formed in the electrothermal preparation of phosphorus

Friedrich Kolkmann; Günther Dr. Schimmel; Johannes Scheffer

Archive | 1987

Process for making crude phosphoric acid

Günther Dr. Schimmel; Friedrich Kolkmann; Reinhard Dipl Chem Dr Gradl; Herbert Ressel

Archive | 1993

PROCEDIMIENTO CONTINUO PARA LA ELIMINACION TOTAL DE IMPUREZAS ORGANICAS Y PARA LA DECOLORACION TOTAL DE UN ACIDO FOSFORICO DE PROCEDIMIENTO EN HUMEDO PREVIAMENTE PURIFICADO.

Günther Dr. Schimmel; Gerhard Bettermann; Gero Heymer; Friedrich Kolkmann

Archive | 1992

PROCEDIMIENTO PARA LA PREPARACION DE ACIDO FOSFORICO CRUDO.

Günther Dr. Schimmel; Friedrich Kolkmann; Reinhard Dipl Chem Dr Gradl; Herbert Ressel

Continuous process for complete removal of organic impurities from and complete decolorization of prepurified wet-process phosphoric acid. | 1990

Continuous process for complete removal or organic impurities from and complete decolorization of prepurified wet-process phosphoric acid

Günther Dr. Schimmel; Gerhard Bettermann; Gero Heymer; Friedrich Kolkmann

Archive | 1989

CONTINUOUS PROCESS FOR COMPLETE REMOVAL OF ORGANIC IMPURITIES FROM WET-PROCESS PHOSPHORIC ACID

Schimmel Guenther; Guenther Dipl Chem Dr Schimmel; Kolkmann Friedrich; Friedrich Kolkmann; Bettermann Gerhard; Gerhard Bettermann; Heymer Gero; Gero Heymer

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Reinhard Dipl Chem Dr Gradl

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Guenther Dipl Chem Dr Schimmel

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