NL274520A - - Google Patents
Info
- Publication number
- NL274520A NL274520A NL274520DA NL274520A NL 274520 A NL274520 A NL 274520A NL 274520D A NL274520D A NL 274520DA NL 274520 A NL274520 A NL 274520A
- Authority
- NL
- Netherlands
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C303/00—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides
- C07C303/42—Separation; Purification; Stabilisation; Use of additives
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C303/00—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides
- C07C303/42—Separation; Purification; Stabilisation; Use of additives
- C07C303/44—Separation; Purification
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C303/00—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides
- C07C303/42—Separation; Purification; Stabilisation; Use of additives
- C07C303/44—Separation; Purification
- C07C303/46—Separation; Purification from by-products of refining mineral oils with sulfuric acid
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Lubricants (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR852677 | 1961-02-14 | ||
| US9771161A | 1961-02-28 | 1961-02-28 | |
| FR861781 | 1961-05-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL274520A true NL274520A (en) |
Family
ID=27245865
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL274520D NL274520A (en) | 1961-02-14 | ||
| NL137013D NL137013C (en) | 1961-02-14 |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL137013D NL137013C (en) | 1961-02-14 |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE1443431C3 (en) |
| FR (1) | FR1587306A (en) |
| GB (1) | GB957741A (en) |
| NL (2) | NL137013C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102617410B (en) * | 2012-03-15 | 2013-11-06 | 长春万成生物电子工程有限公司 | Method for purifying 3,4,5,6-tetrahalogenated phenolsulfonphthalein |
-
0
- NL NL274520D patent/NL274520A/xx unknown
- NL NL137013D patent/NL137013C/xx active
-
1961
- 1961-02-14 FR FR1587306D patent/FR1587306A/fr not_active Expired
- 1961-08-04 GB GB2843061A patent/GB957741A/en not_active Expired
-
1962
- 1962-02-09 DE DE19621443431 patent/DE1443431C3/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE1443431A1 (en) | 1968-10-24 |
| FR1587306A (en) | 1970-03-20 |
| NL137013C (en) | |
| DE1443431C3 (en) | 1975-02-06 |
| GB957741A (en) | 1964-05-13 |