FR2394554A1 - PROCESS FOR STABILIZING NITROCELLULOSE BEFORE PRESSURE BOILING TREATMENT - Google Patents

PROCESS FOR STABILIZING NITROCELLULOSE BEFORE PRESSURE BOILING TREATMENT

Info

Publication number
FR2394554A1
FR2394554A1 FR7818149A FR7818149A FR2394554A1 FR 2394554 A1 FR2394554 A1 FR 2394554A1 FR 7818149 A FR7818149 A FR 7818149A FR 7818149 A FR7818149 A FR 7818149A FR 2394554 A1 FR2394554 A1 FR 2394554A1
Authority
FR
France
Prior art keywords
before pressure
pressure boiling
boiling treatment
stabilizing
nitrocellulose
Prior art date
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.)
Granted
Application number
FR7818149A
Other languages
French (fr)
Other versions
FR2394554B1 (en
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.)
Dow Produktions und Vertriebs GmbH and Co oHG
Original Assignee
Wolff Walsrode AG
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
Application filed by Wolff Walsrode AG filed Critical Wolff Walsrode AG
Publication of FR2394554A1 publication Critical patent/FR2394554A1/en
Application granted granted Critical
Publication of FR2394554B1 publication Critical patent/FR2394554B1/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B5/00—Preparation of cellulose esters of inorganic acids, e.g. phosphates
    • C08B5/02—Cellulose nitrate, i.e. nitrocellulose
    • C08B5/04—Post-esterification treatments, e.g. densification of powders, including purification
    • C08B5/08—Stabilisation ; Post-treatment, e.g. phlegmatisation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Biochemistry (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Processing Of Solid Wastes (AREA)
  • Paper (AREA)

Abstract

L'invention concerne un procédé de stabilisation continue de nitrocellulose préalablement désacidifiée, avant l'ébulltion sous pression. Le gâteau de nitrocellulose est lavé intensément pendant sa centrifugation à grande vitesse au moyen d'eau chaude appliquée à l'aide de buses puis le gâteau est stocké ou traité à l'ébullition sous pression. Le procédé de l'invention permet d'obtenir une stabilisation très rapide.The invention relates to a process for the continuous stabilization of previously deacidified nitrocellulose, before boiling under pressure. The nitrocellulose cake is washed extensively during its high-speed centrifugation by means of hot water applied through nozzles and then the cake is stored or boiled under pressure. The method of the invention makes it possible to obtain very rapid stabilization.

FR7818149A 1977-06-18 1978-06-16 PROCESS FOR STABILIZING NITROCELLULOSE BEFORE PRESSURE BOILING TREATMENT Granted FR2394554A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772727553 DE2727553C2 (en) 1977-06-18 1977-06-18 Continuous process for the pre-stabilization of pre-deacidified nitrocellulose

Publications (2)

Publication Number Publication Date
FR2394554A1 true FR2394554A1 (en) 1979-01-12
FR2394554B1 FR2394554B1 (en) 1983-02-04

Family

ID=6011842

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7818149A Granted FR2394554A1 (en) 1977-06-18 1978-06-16 PROCESS FOR STABILIZING NITROCELLULOSE BEFORE PRESSURE BOILING TREATMENT

Country Status (3)

Country Link
DE (1) DE2727553C2 (en)
FR (1) FR2394554A1 (en)
GB (1) GB2000147B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102351955B (en) * 2011-08-05 2013-03-20 四川北方硝化棉股份有限公司 Nitrocotton boiling and washing method

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH260313A (en) * 1941-12-08 1949-03-15 Ici Ltd Process and device for the production of washed nitrocellulose.

Also Published As

Publication number Publication date
FR2394554B1 (en) 1983-02-04
DE2727553A1 (en) 1978-12-21
GB2000147B (en) 1982-01-20
DE2727553C2 (en) 1983-11-10
GB2000147A (en) 1979-01-04

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Legal Events

Date Code Title Description
ST Notification of lapse