BE443121A - - Google Patents
Info
- Publication number
- BE443121A BE443121A BE443121DA BE443121A BE 443121 A BE443121 A BE 443121A BE 443121D A BE443121D A BE 443121DA BE 443121 A BE443121 A BE 443121A
- Authority
- BE
- Belgium
Links
Classifications
-
- 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
- D21C11/00—Regeneration of pulp liquors or effluent waste waters
- D21C11/0007—Recovery of by-products, i.e. compounds other than those necessary for pulping, for multiple uses or not otherwise provided for
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE878497X | 1940-10-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE443121A true BE443121A (xx) |
Family
ID=6818547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE443121D BE443121A (xx) | 1940-10-21 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE443121A (xx) |
| FR (1) | FR878497A (xx) |
| NL (1) | NL63072C (xx) |
-
0
- BE BE443121D patent/BE443121A/xx unknown
- NL NL63072D patent/NL63072C/xx active
-
1941
- 1941-10-20 FR FR878497D patent/FR878497A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL63072C (xx) | |
| FR878497A (fr) | 1943-01-21 |