METHOD OF SELECTING WOOD FOR CHEMICAL PULPING

A method of selecting bulk wood units for chemical pulping in alkaline conditions which consists of establishing a reference scale by selecting a test sample, measuring the acoustic velocity through each sample units, selecting acoustic velocity bands from t he sample results, processing the sample...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	WALKER, JOHN CORRIE FLEMING
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	APPARATUS THEREFOR FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING PAPER-MAKING PHYSICS PRODUCTION OF CELLULOSE PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCESFROM CELLULOSE-CONTAINING MATERIALS REGENERATION OF PULPING LIQUORS TESTING TEXTILES
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Beschreibung
Zusammenfassung:	A method of selecting bulk wood units for chemical pulping in alkaline conditions which consists of establishing a reference scale by selecting a test sample, measuring the acoustic velocity through each sample units, selecting acoustic velocity bands from t he sample results, processing the sample units using known chemical pulping processes, measurin g the percentage pulp yield, and then using the measured pulp yields and acoustic velocities to produce a reference scale; measuring the acoustic velocity through each of t he units, comparing the velocity measurement for each unit against the reference scale , and then dividing the tested units into subgroups according to the predicted yield in chemical pulping.