AMINOALKAN-DIPHOSPHONSÄUREN ZUM BLEICHEN VON ZELLSTOFF

PCT No. PCT/EP94/03546 Sec. 371 Date Feb. 8, 1995 Sec. 102(e) Date Feb. 8, 1995 PCT Filed Oct. 26, 1994 PCT Pub. No. WO95/12029 PCT Pub. Date May 4, 1995A process for the bleaching of pulp comprising the step of bleaching the pulp with hydrogen peroxide and an effective amount of at least one biodeg...

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Hauptverfasser:	OLDE HANTER, LAMBERTUS, GERHARDUS, JOHANNUS, NL-7595 ME WEERSELO, NL, NAVARRO, CHARLES, MANUEL, NL-7391 WK TWELLO, NL, BOELEMA, ELTJO, NL-7437 BC BATHMEN, NL, VAN DOORN, MARCELLINUS, ALEXANDER, NL-7471 SK GOOR, NL
Format:	Patent
Sprache:	ger
Schlagworte:	APPARATUS THEREFOR BLEACHING LEATHER OR FURS CHEMISTRY COMPOUNDS THEREOF DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS,YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR INORGANIC CHEMISTRY LAUNDERING METALLURGY NON-METALLIC ELEMENTS PAPER-MAKING PRODUCTION OF CELLULOSE PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCESFROM CELLULOSE-CONTAINING MATERIALS REGENERATION OF PULPING LIQUORS TEXTILES TREATMENT OF TEXTILES OR THE LIKE
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Zusammenfassung:	PCT No. PCT/EP94/03546 Sec. 371 Date Feb. 8, 1995 Sec. 102(e) Date Feb. 8, 1995 PCT Filed Oct. 26, 1994 PCT Pub. No. WO95/12029 PCT Pub. Date May 4, 1995A process for the bleaching of pulp comprising the step of bleaching the pulp with hydrogen peroxide and an effective amount of at least one biodegradable 1-aminoalkane-1,1-diphosphonate chelating agent to enhance the bleaching of the pulp, is disclosed. Also disclosed is the use of a 1-aminoalkane-1,1-diphosphonate to enhance the bleaching of pulp with hydrogen peroxide, as well as the pretreatment of pulp with a 1-aminoalkane-1,1-diphosphonate prior to the step of bleaching with hydrogen peroxide. Finally, the deinking of pulp in the presence of 1-aminoalkane-1,1-diphosphonate is also disclosed.