IT596887A - - Google Patents
Info
- Publication number
- IT596887A IT596887A IT596887DA IT596887A IT 596887 A IT596887 A IT 596887A IT 596887D A IT596887D A IT 596887DA IT 596887 A IT596887 A IT 596887A
- Authority
- IT
- Italy
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
- C07D307/02—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
- C07D307/34—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
- C07D307/38—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with substituted hydrocarbon radicals attached to ring carbon atoms
- C07D307/40—Radicals substituted by oxygen atoms
- C07D307/46—Doubly bound oxygen atoms, or two oxygen atoms singly bound to the same carbon atom
- C07D307/48—Furfural
- C07D307/50—Preparation from natural products
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F10/00—Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
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- 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
- D21C1/00—Pretreatment of the finely-divided materials before digesting
- D21C1/04—Pretreatment of the finely-divided materials before digesting with acid reacting compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Paper (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEH161749D DE747454C (en) | 1940-03-02 | 1940-03-02 | Process for the production of high polymer cellulose |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IT596887A true IT596887A (en) |
Family
ID=7183518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT596887D IT596887A (en) | 1940-03-02 |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE445331A (en) |
| DE (1) | DE747454C (en) |
| DK (1) | DK63544C (en) |
| FR (1) | FR870328A (en) |
| IT (1) | IT596887A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE967570C (en) * | 1941-12-23 | 1957-11-21 | Phrix Werke Akt Ges | Process for the production of a pulp suitable for the production of viscose from annual plants rich in pentosan |
| DE968585C (en) * | 1942-01-10 | 1958-03-06 | Phrix Werke Ag | Process for the production of a pulp suitable for the production of synthetic fibers from pine wood |
| DE969452C (en) * | 1942-03-20 | 1958-06-04 | Phrix Werke Ag | Process for the production of synthetic fiber pulp |
| DE938229C (en) * | 1943-05-25 | 1956-01-26 | Phrix Werke Ag | Process for the production of a pulp suitable for further chemical processing by digestion with non-causticized alkalis |
| US2999783A (en) * | 1957-10-05 | 1961-09-12 | Hodogaya Chemical Co Ltd | Process for simultaneous production of high alpha-pulp with furfural from latifoliate tree materials |
| ZA766073B (en) * | 1975-10-24 | 1977-09-28 | D Econimidis | Production of pulp |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE77598C (en) * | E. RUDEL, Dresden-Neustadt, Königsbrückerstr. 91 | Process for breaking down plant matter for cellulose production | ||
| DE647913C (en) * | 1931-08-25 | 1937-07-19 | Holzhydrolyse A G | Process for the production of pentoses from parts of plants with a high content of pentosan |
| US1960812A (en) * | 1931-10-22 | 1934-05-29 | Groth Bertil Sixten | Manufacture of furfur |
| US2026900A (en) * | 1934-10-19 | 1936-01-07 | Kodama Kenta | Method of manufacturing refined pulp from straw of graminaceous plants |
| FR831702A (en) * | 1937-02-20 | 1938-09-13 | Henkel & Cie Gmbh | Process for manufacturing strawboard with simultaneous obtaining of furfurol |
| FR847463A (en) * | 1938-06-16 | 1939-10-10 | Pingris & Molley Fontaine Reun | Process for treating cellulosic materials for the preparation of pure cellulose |
-
0
- IT IT596887D patent/IT596887A/it unknown
-
1940
- 1940-03-02 DE DEH161749D patent/DE747454C/en not_active Expired
-
1941
- 1941-02-26 FR FR870328D patent/FR870328A/en not_active Expired
-
1942
- 1942-04-24 BE BE445331D patent/BE445331A/xx unknown
- 1942-04-29 DK DK94142A patent/DK63544C/en active
Also Published As
| Publication number | Publication date |
|---|---|
| DK63544C (en) | 1945-05-28 |
| DE747454C (en) | 1944-10-04 |
| BE445331A (en) | 1942-05-30 |
| FR870328A (en) | 1942-03-10 |