FR2394554A1 - PROCESS FOR STABILIZING NITROCELLULOSE BEFORE PRESSURE BOILING TREATMENT - Google Patents
PROCESS FOR STABILIZING NITROCELLULOSE BEFORE PRESSURE BOILING TREATMENTInfo
- 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
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.
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)
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)
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. |
-
1977
- 1977-06-18 DE DE19772727553 patent/DE2727553C2/en not_active Expired
-
1978
- 1978-06-16 GB GB7827083A patent/GB2000147B/en not_active Expired
- 1978-06-16 FR FR7818149A patent/FR2394554A1/en active Granted
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 |