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.)
Envirotech Corp
Original Assignee
Envirotech Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from US48019374external-prioritypatent/US3928123A/en
Application filed by Envirotech CorpfiledCriticalEnvirotech Corp
Publication of DE2526881A1publicationCriticalpatent/DE2526881A1/de
D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
D21C7/00—Digesters
D21C7/12—Devices for regulating or controlling
D—TEXTILES; PAPER
D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
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
D21C3/22—Other features of pulping processes
Landscapes
Control Of Fluid Pressure
(AREA)
Paper
(AREA)
DE197525268811974-06-171975-06-16Vorrichtung zur regelung der entlueftung von chargenweise arbeitenden autoklaven
PendingDE2526881A1
(de)
Verfahren zum Gefriertrocknen von Lebensmitteln oder anderen durch erhoehte Temperaturen gefaehrdeten Produkten und Trockner zur Durchfuehrung dieses Verfahrens