NL6707874A - - Google Patents
Info
- Publication number
- NL6707874A NL6707874A NL6707874A NL6707874A NL6707874A NL 6707874 A NL6707874 A NL 6707874A NL 6707874 A NL6707874 A NL 6707874A NL 6707874 A NL6707874 A NL 6707874A NL 6707874 A NL6707874 A NL 6707874A
- 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
- C07C51/16—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation
- C07C51/21—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen
- C07C51/255—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of compounds containing six-membered aromatic rings without ring-splitting
- C07C51/265—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of compounds containing six-membered aromatic rings without ring-splitting having alkyl side chains which are oxidised to carboxyl groups
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B7/00—Halogens; Halogen acids
- C01B7/09—Bromine; Hydrogen bromide
- C01B7/093—Hydrogen bromide
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/54—Preparation of carboxylic acid anhydrides
- C07C51/573—Separation; Purification; Stabilisation; Use of additives
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Inorganic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Furan Compounds (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US55590066A | 1966-06-07 | 1966-06-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL6707874A true NL6707874A (el) | 1967-12-08 |
Family
ID=24219043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL6707874A NL6707874A (el) | 1966-06-07 | 1967-06-06 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3428423A (el) |
| BE (1) | BE699594A (el) |
| DE (1) | DE1618249B1 (el) |
| ES (1) | ES342096A1 (el) |
| GB (1) | GB1159878A (el) |
| NL (1) | NL6707874A (el) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3650906A (en) * | 1968-04-13 | 1972-03-21 | Zieren Chemiebau Gmbh Dr A | Thin film heating for the preliminary purification of crude phthalic anhydride |
| DE2042522C3 (de) * | 1970-08-27 | 1979-01-25 | Deutsche Gold- U. Silber-Scheideanstalt, Vormals Roessler, 6000 Frankfurt | Verfahren zur Herstellung sehr reiner, wässriger, höher konzentrierter Wasserstoffperoxidlösungen |
| US4055577A (en) * | 1974-11-11 | 1977-10-25 | Davy Powergas Gmbh | Process for thermal treatment of crude phthalic acid |
| US4010065A (en) * | 1975-03-20 | 1977-03-01 | Phillips Petroleum Company | Process and apparatus for regenerating wet glycols |
| US10918990B2 (en) * | 2019-10-24 | 2021-02-16 | Serguei TIKHONOV | Vertical column apparatus for mass exchange processes |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3004067A (en) * | 1961-10-10 | Separation of aromatic | ||
| US3328429A (en) * | 1965-07-06 | 1967-06-27 | Witco Chemical Corp | Purification of crude phthalic anhydride |
| US3364235A (en) * | 1966-01-03 | 1968-01-16 | Sherwin Williams Co | Phthalic anhydride color inhibition |
-
1966
- 1966-06-07 US US555900A patent/US3428423A/en not_active Expired - Lifetime
-
1967
- 1967-05-30 GB GB24854/67A patent/GB1159878A/en not_active Expired
- 1967-06-06 NL NL6707874A patent/NL6707874A/xx unknown
- 1967-06-07 DE DE1967C0042558 patent/DE1618249B1/de active Pending
- 1967-06-07 ES ES342096A patent/ES342096A1/es not_active Expired
- 1967-06-07 BE BE699594D patent/BE699594A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BE699594A (el) | 1967-12-07 |
| US3428423A (en) | 1969-02-18 |
| ES342096A1 (es) | 1968-07-16 |
| GB1159878A (en) | 1969-07-30 |
| DE1618249B1 (de) | 1972-05-04 |