Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Erco Envirotech Ltd
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Erco Envirotech Ltd
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Priority claimed from CA279,885Aexternal-prioritypatent/CA1089157A/fr
Application filed by Erco Envirotech LtdfiledCriticalErco Envirotech Ltd
Priority to CA349,126ApriorityCriticalpatent/CA1089161A/fr
Application grantedgrantedCritical
Publication of CA1089161ApublicationCriticalpatent/CA1089161A/fr
Methode de recuperation de substances par l'extraction de solutions usees de la delignification de matieres lignocellulosiques au moyen d'agents de blanchiment generateurs de chlorure