DE219085C - - Google Patents
Info
- Publication number
- DE219085C DE219085C DENDAT219085D DE219085DA DE219085C DE 219085 C DE219085 C DE 219085C DE NDAT219085 D DENDAT219085 D DE NDAT219085D DE 219085D A DE219085D A DE 219085DA DE 219085 C DE219085 C DE 219085C
- Authority
- DE
- Germany
- Prior art keywords
- wood pulp
- alkalis
- nitrocelluloses
- sulphurous
- caustic
- 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.)
- Active
Links
- 229920001131 Pulp (paper) Polymers 0.000 claims 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-N Carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 claims 1
- 239000003518 caustics Substances 0.000 claims 1
- 238000004140 cleaning Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
- 229920001220 nitrocellulos Polymers 0.000 claims 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B1/00—Preparatory treatment of cellulose for making derivatives thereof, e.g. pre-treatment, pre-soaking, activation
- C08B1/02—Rendering cellulose suitable for esterification
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Paper (AREA)
Description
Berlin, gedruckt in der reichsdruckerei.
Claims (1)
- Patent-Anspruch:Verfahren zur Reinigung und Vorbereitung von Handels-Holz-Zellstoff für die Zwecke der Herstellung von Kunstfäden und Nitrozellulosen 0. dgl., dadurch gekennzeichnet, daß man den Holz-Zellstoff mit Lösungen von kohlensauren Alkalien eventuell unter vorsichtigem Zusatz von atzenden oder Sehwefelalkalien unter Druck kocht.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE219085C true DE219085C (de) |
Family
ID=480245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT219085D Active DE219085C (de) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE219085C (de) |
-
0
- DE DENDAT219085D patent/DE219085C/de active Active
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