NL7017539A - - Google Patents
Info
- Publication number
- NL7017539A NL7017539A NL7017539A NL7017539A NL7017539A NL 7017539 A NL7017539 A NL 7017539A NL 7017539 A NL7017539 A NL 7017539A NL 7017539 A NL7017539 A NL 7017539A NL 7017539 A NL7017539 A NL 7017539A
- Authority
- NL
- Netherlands
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/42—Separation; Purification; Stabilisation; Use of additives
- C07C51/487—Separation; Purification; Stabilisation; Use of additives by treatment giving rise to chemical modification
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US88327069A | 1969-12-08 | 1969-12-08 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| NL7017539A true NL7017539A (sv) | 1971-06-10 |
| NL169170B NL169170B (nl) | 1982-01-18 |
| NL169170C NL169170C (nl) | 1982-06-16 |
Family
ID=25382292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NLAANVRAGE7017539,A NL169170C (nl) | 1969-12-08 | 1970-12-01 | Werkwijze voor het verbeteren van de kleurstabiliteit van benzoezuur. |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3705193A (sv) |
| BE (1) | BE760038A (sv) |
| DE (1) | DE2059791C3 (sv) |
| FR (1) | FR2072865A5 (sv) |
| GB (1) | GB1267020A (sv) |
| NL (1) | NL169170C (sv) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL8300008A (nl) * | 1983-01-03 | 1984-08-01 | Stamicarbon | Werkwijze voor de bereiding van benzoezuur. |
| NL8300009A (nl) * | 1983-01-03 | 1984-08-01 | Stamicarbon | Werkwijze voor de bereiding van farmaceutisch benzoezuur. |
| CN113548960A (zh) * | 2021-07-19 | 2021-10-26 | 武汉有机实业有限公司 | 一种食品级苯甲酸的纯化方法 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3309289A (en) * | 1961-10-11 | 1967-03-14 | Snia Viscosa | Recovery of benzoic acid by distillation in presence of excess water |
| US3478092A (en) * | 1966-04-06 | 1969-11-11 | Velsicol Chemical Corp | Method of improving the color and color stability of benzoic acid |
-
0
- BE BE760038D patent/BE760038A/xx not_active IP Right Cessation
-
1969
- 1969-12-08 US US883270A patent/US3705193A/en not_active Expired - Lifetime
-
1970
- 1970-12-01 NL NLAANVRAGE7017539,A patent/NL169170C/xx not_active IP Right Cessation
- 1970-12-03 FR FR7043552A patent/FR2072865A5/fr not_active Expired
- 1970-12-04 DE DE2059791A patent/DE2059791C3/de not_active Expired
- 1970-12-07 GB GB1267020D patent/GB1267020A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB1267020A (sv) | 1972-03-15 |
| DE2059791A1 (de) | 1971-06-16 |
| FR2072865A5 (sv) | 1971-09-24 |
| BE760038A (fr) | 1971-05-17 |
| DE2059791C3 (de) | 1982-05-19 |
| NL169170B (nl) | 1982-01-18 |
| US3705193A (en) | 1972-12-05 |
| DE2059791B2 (de) | 1981-05-14 |
| NL169170C (nl) | 1982-06-16 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| V4 | Lapsed because of reaching the maximum lifetime of a patent |