GB1023570A - Improvements in or relating to a nitrocellulose product and process of manufacture - Google Patents
Improvements in or relating to a nitrocellulose product and process of manufactureInfo
- Publication number
- GB1023570A GB1023570A GB32767/64A GB3276764A GB1023570A GB 1023570 A GB1023570 A GB 1023570A GB 32767/64 A GB32767/64 A GB 32767/64A GB 3276764 A GB3276764 A GB 3276764A GB 1023570 A GB1023570 A GB 1023570A
- Authority
- GB
- United Kingdom
- Prior art keywords
- nitrocellulose
- granules
- water
- solvent
- hydrocarbon
- 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.)
- Expired
Links
- 239000000020 Nitrocellulose Substances 0.000 title abstract 13
- 229920001220 nitrocellulos Polymers 0.000 title abstract 13
- 238000004519 manufacturing process Methods 0.000 title 1
- 238000000034 method Methods 0.000 title 1
- FJWGYAHXMCUOOM-QHOUIDNNSA-N [(2s,3r,4s,5r,6r)-2-[(2r,3r,4s,5r,6s)-4,5-dinitrooxy-2-(nitrooxymethyl)-6-[(2r,3r,4s,5r,6s)-4,5,6-trinitrooxy-2-(nitrooxymethyl)oxan-3-yl]oxyoxan-3-yl]oxy-3,5-dinitrooxy-6-(nitrooxymethyl)oxan-4-yl] nitrate Chemical compound O([C@@H]1O[C@@H]([C@H]([C@H](O[N+]([O-])=O)[C@H]1O[N+]([O-])=O)O[C@H]1[C@@H]([C@@H](O[N+]([O-])=O)[C@H](O[N+]([O-])=O)[C@@H](CO[N+]([O-])=O)O1)O[N+]([O-])=O)CO[N+](=O)[O-])[C@@H]1[C@@H](CO[N+]([O-])=O)O[C@@H](O[N+]([O-])=O)[C@H](O[N+]([O-])=O)[C@H]1O[N+]([O-])=O FJWGYAHXMCUOOM-QHOUIDNNSA-N 0.000 abstract 12
- 229940079938 nitrocellulose Drugs 0.000 abstract 12
- 239000008187 granular material Substances 0.000 abstract 8
- 239000002904 solvent Substances 0.000 abstract 6
- 239000004215 Carbon black (E152) Substances 0.000 abstract 5
- 229930195733 hydrocarbon Natural products 0.000 abstract 5
- 150000002430 hydrocarbons Chemical class 0.000 abstract 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 5
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 abstract 3
- 239000007788 liquid Substances 0.000 abstract 3
- SYBYTAAJFKOIEJ-UHFFFAOYSA-N 3-Methylbutan-2-one Chemical compound CC(C)C(C)=O SYBYTAAJFKOIEJ-UHFFFAOYSA-N 0.000 abstract 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract 2
- 239000002002 slurry Substances 0.000 abstract 2
- 238000013019 agitation Methods 0.000 abstract 1
- 125000001931 aliphatic group Chemical group 0.000 abstract 1
- 125000003118 aryl group Chemical group 0.000 abstract 1
- 238000005119 centrifugation Methods 0.000 abstract 1
- 238000004821 distillation Methods 0.000 abstract 1
- 150000002148 esters Chemical class 0.000 abstract 1
- 230000001788 irregular Effects 0.000 abstract 1
- JMMWKPVZQRWMSS-UHFFFAOYSA-N isopropanol acetate Natural products CC(C)OC(C)=O JMMWKPVZQRWMSS-UHFFFAOYSA-N 0.000 abstract 1
- 229940011051 isopropyl acetate Drugs 0.000 abstract 1
- GWYFCOCPABKNJV-UHFFFAOYSA-N isovaleric acid Chemical compound CC(C)CC(O)=O GWYFCOCPABKNJV-UHFFFAOYSA-N 0.000 abstract 1
- 150000002576 ketones Chemical class 0.000 abstract 1
- 229910052757 nitrogen Inorganic materials 0.000 abstract 1
- 239000003960 organic solvent Substances 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C06—EXPLOSIVES; MATCHES
- C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
- C06B21/00—Apparatus or methods for working-up explosives, e.g. forming, cutting, drying
- C06B21/0008—Compounding the ingredient
-
- 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
-
- 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
-
- 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
- C08B5/12—Replacing the water by organic liquids
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Biochemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Engineering & Computer Science (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Hydrocarbon-wet nitrocellulose granules are made by contacting a heated, agitated, aqueous slurry of fibrous nitrocellulose with 0.3-2.0 parts by weight, per part of nitrocellulose, of an organic liquid which is a solvent for the nitro-cellulose, removing substantially all of the solvent by distillation while continuing agitation, separating excess water from the resulting hardened nitrocellulose granules, then substantially displacing sorbed water from the water-wet nitrocellulose granules in presence of excess volatile hydrocarbon liquid, separating excess hydrocarbon, and recovering nitrocellulose granules wetted with 10-40% by weight of sorbed hydrocarbon, based on total weight. The organic liquid solvent may be a ketone or an ester, while the hydrocarbon may be aliphatic or aromatic. Many are specified. The aqueous nitrocellulose slurry may contain 5-20% by weight of nitrocellulose, and is preferably heated to a temperature at or near the boiling-point of the organic solvent or water-solvent azeotrope. The proportion of added solvent is sufficient to soften, but not to dissolve, the nitrocellulose, which is then converted to hardened, irregular, dense granules by distilling off the solvent at atmospheric or reduced pressure. After removal of excess water by e.g. drainage or centrifugation, sorbed water may be displaced by slurrying the water-wet granules in excess hydrocarbon and distilling at atmospheric pressure, or under reduced or increased pressure. The resulting free-flowing granules contain usually less than 1% by weight of water, and have a bulk density (dry basis) of 20-40 lbs. per cubic foot. In examples, toluene-wet nitrocellulose granules are prepared from fibrous nitro-cellulose containing 11.0-12.6% of nitrogen, after softening with methyl ethyl ketone, methyl isopropyl ketone, or isopropyl acetate.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US304985A US3284253A (en) | 1963-08-27 | 1963-08-27 | Densified nitrocellulose-hydrocarbon product and process of manufacture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1023570A true GB1023570A (en) | 1966-03-23 |
Family
ID=23178800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB32767/64A Expired GB1023570A (en) | 1963-08-27 | 1964-08-11 | Improvements in or relating to a nitrocellulose product and process of manufacture |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3284253A (en) |
| BE (1) | BE652163A (en) |
| CH (1) | CH435706A (en) |
| DE (1) | DE1226014B (en) |
| FR (1) | FR1412595A (en) |
| GB (1) | GB1023570A (en) |
| NL (1) | NL6409965A (en) |
| SE (1) | SE355187B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0075024A4 (en) * | 1981-04-02 | 1984-02-07 | Daicel Chem | Process for the preparation of nitrocellulose compositions. |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3325315A (en) * | 1965-12-14 | 1967-06-13 | Hercules Inc | Manufacture of densified spheroidal nitrocellulose of high viscosity at casting temperatures |
| US3325571A (en) * | 1966-01-25 | 1967-06-13 | Hercules Inc | Process for the manufacture of smokeless powder |
| US3325572A (en) * | 1966-05-24 | 1967-06-13 | Hercules Inc | Process for preparing small, densified nitrocellulose particles |
| US3346675A (en) * | 1966-09-08 | 1967-10-10 | Hercules Inc | Method of preparing small particle nitrocellulose |
| FR94575E (en) * | 1967-12-20 | 1969-09-12 | France Etat | Improvements to cellulose nitration processes. |
| US3925125A (en) * | 1973-12-06 | 1975-12-09 | Us Navy | Moisture replacement in pelletized nitrocellulose |
| GB2067568B (en) * | 1979-12-28 | 1984-05-31 | Asahi Chemical Ind | Nitrocellulose composition and process for production thereof |
| DE3334823A1 (en) | 1983-09-26 | 1985-04-04 | Wolff Walsrode Ag, 3030 Walsrode | METHOD FOR PRODUCING GIANT CAPABILITY OF NITROCELLULOSE |
| DE3430437A1 (en) * | 1984-08-18 | 1986-02-27 | Wolff Walsrode Ag, 3030 Walsrode | WITH TERT. ALCOHOLIC WETTED NITROCELLULOSE AND THEIR USE IN POLYURETHANE PAINT |
| US5144020A (en) * | 1991-05-17 | 1992-09-01 | Aqualon Company | High productivity spheroid nitrocellulose |
| IT1255438B (en) * | 1992-07-17 | 1995-10-31 | Getters Spa | NON-EVAPORABLE GETTER PUMP |
| DE4405210A1 (en) * | 1994-02-18 | 1995-08-24 | Wolff Walsrode Ag | Emulsifier-free paint binders in granulate form and their production |
| DE19709702A1 (en) | 1997-03-10 | 1998-09-17 | Wolff Walsrode Ag | Paint binder preparations, their manufacture and use |
| DE10152396A1 (en) * | 2001-10-24 | 2003-05-15 | Bowas Ag Fuer Industrievertrie | Manufacture of anhydrous nitrocellulose and eyplosive substances in spheroidal form |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2715574A (en) * | 1951-06-14 | 1955-08-16 | Olin Mathieson | Process of making spherical powder grains |
| US2948601A (en) * | 1958-11-17 | 1960-08-09 | Hercules Powder Co Ltd | Densification of nitrocellulose |
| DE1086163B (en) | 1958-11-17 | 1960-07-28 | Hercules Powder Co Ltd | Method of densifying nitrocellulose |
-
0
- BE BE652163D patent/BE652163A/xx unknown
-
1963
- 1963-08-27 US US304985A patent/US3284253A/en not_active Expired - Lifetime
-
1964
- 1964-08-11 GB GB32767/64A patent/GB1023570A/en not_active Expired
- 1964-08-19 FR FR45070A patent/FR1412595A/en not_active Expired
- 1964-08-26 SE SE10283/64A patent/SE355187B/xx unknown
- 1964-08-26 DE DEH53642A patent/DE1226014B/en active Pending
- 1964-08-27 CH CH1120964A patent/CH435706A/en unknown
- 1964-08-27 NL NL6409965A patent/NL6409965A/xx unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0075024A4 (en) * | 1981-04-02 | 1984-02-07 | Daicel Chem | Process for the preparation of nitrocellulose compositions. |
Also Published As
| Publication number | Publication date |
|---|---|
| FR1412595A (en) | 1965-10-01 |
| BE652163A (en) | 1900-01-01 |
| US3284253A (en) | 1966-11-08 |
| SE355187B (en) | 1973-04-09 |
| CH435706A (en) | 1967-05-15 |
| DE1226014B (en) | 1966-09-29 |
| NL6409965A (en) | 1965-03-01 |
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