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.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Filing date
Publication date
Application filed by IndividualfiledCriticalIndividual
Application grantedgrantedCritical
Publication of FR336594ApublicationCriticalpatent/FR336594A/fr
D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
D21C3/00—Pulping cellulose-containing materials
D21C3/04—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides
D21C3/06—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides sulfur dioxide; sulfurous acid; bisulfites sulfites
D21C3/14—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides sulfur dioxide; sulfurous acid; bisulfites sulfites ammonium bisulfite
FR336594A1903-01-21Lessive de décoction pour préparer de la cellulose et pour traiter des fibres difficiles à blanchir
ExpiredFR336594A
(fr)
Procédé de fabrication de papier hydrophile en partant de déchets de fibres textiles, coton, lin, chanvre et autres, mélangées ou non à la cellulose blanchie de sapin, et produit industriel nouveau en résultant
Procédé et appareil pour rouir et décortiquer et subséquemment nettoyer et sécher les substances fibreuses préalablement à l'extraction de leur fibre