NL63072C - - Google Patents
Info
- Publication number
- NL63072C NL63072C NL63072DA NL63072C NL 63072 C NL63072 C NL 63072C NL 63072D A NL63072D A NL 63072DA NL 63072 C NL63072 C NL 63072C
- Authority
- NL
- Netherlands
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 |
|---|---|
| NL63072C true NL63072C (fr) |
Family
ID=6818547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL63072D NL63072C (fr) | 1940-10-21 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE443121A (fr) |
| FR (1) | FR878497A (fr) |
| NL (1) | NL63072C (fr) |
-
0
- NL NL63072D patent/NL63072C/xx active
- BE BE443121D patent/BE443121A/xx unknown
-
1941
- 1941-10-20 FR FR878497D patent/FR878497A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR878497A (fr) | 1943-01-21 |
| BE443121A (fr) |