|5865948||Method for steaming comminuted cellulosic fibrous material during continuous solvent pulping|
A continuous solvent pulping process is practiced with oxygen free gas (e.g. nitrogen) purges of all major treatment vessels during the time when the process is arrested or terminated. The wood chips or other cellulosic fibrous material to be pulped is st...
|5681427||Apparatus for treating pulp produced by solvent pulping|
An apparatus and process for the solvent pulping and washing of pulp using vessels purged of oxygen free gas when the process is arrested or terminated. The washing is accomplished by first continuously passing the pulp to a pressure diffuser, then to a f...