NL238475A - - Google Patents
Info
- Publication number
- NL238475A NL238475A NL238475DA NL238475A NL 238475 A NL238475 A NL 238475A NL 238475D A NL238475D A NL 238475DA NL 238475 A NL238475 A NL 238475A
- Authority
- NL
- Netherlands
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B21/00—Nitrogen; Compounds thereof
- C01B21/20—Nitrogen oxides; Oxyacids of nitrogen; Salts thereof
- C01B21/38—Nitric acid
- C01B21/46—Purification; Separation ; Stabilisation
-
- 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)
- Inorganic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US731021A US2988425A (en) | 1958-04-25 | 1958-04-25 | Method for separation of acids |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL238475A true NL238475A (xx) |
Family
ID=24937719
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL238475D NL238475A (xx) | 1958-04-25 | ||
| NL121846D NL121846C (xx) | 1958-04-25 |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL121846D NL121846C (xx) | 1958-04-25 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2988425A (xx) |
| DE (1) | DE1127336B (xx) |
| GB (1) | GB883493A (xx) |
| LU (1) | LU37108A1 (xx) |
| NL (2) | NL121846C (xx) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107986315B (zh) * | 2017-12-01 | 2019-11-22 | 东江环保股份有限公司 | 混合废液的回收方法 |
| CN108892116A (zh) * | 2018-06-22 | 2018-11-27 | 湖北永绍科技股份有限公司 | 一种磷酸、乙酸及硝酸混合酸的分离方法 |
| CN108640093B (zh) * | 2018-06-22 | 2021-11-09 | 湖北永绍科技股份有限公司 | 一种混合废酸溶液的分离提纯工艺 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1590043A (en) * | 1921-12-20 | 1926-06-22 | Du Pont | Production of concentrated nitric acid from waste acids |
| US1991084A (en) * | 1930-05-13 | 1935-02-12 | Dreyfus Henry | Treatment of organic compounds |
| US1904160A (en) * | 1931-01-31 | 1933-04-18 | Doherty Res Co | Manufacture of acetic acid |
| US1948968A (en) * | 1931-08-08 | 1934-02-27 | Shell Dev | Preparation of nitrogenous products |
| DE657192C (de) * | 1934-08-14 | 1938-02-26 | Hydro Nitro S A | Herstellung hochkonzentrierter Salpetersaeure aus verduennter Salpetersaeure |
| US2543446A (en) * | 1948-10-12 | 1951-02-27 | Commercial Solvents Corp | Process for the recovery of nitrogen oxide |
-
0
- NL NL238475D patent/NL238475A/xx unknown
- NL NL121846D patent/NL121846C/xx active
- LU LU37108D patent/LU37108A1/xx unknown
-
1958
- 1958-04-25 US US731021A patent/US2988425A/en not_active Expired - Lifetime
-
1959
- 1959-03-04 GB GB7486/59A patent/GB883493A/en not_active Expired
- 1959-04-13 DE DEE17471A patent/DE1127336B/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE1127336B (de) | 1962-04-12 |
| NL121846C (xx) | |
| US2988425A (en) | 1961-06-13 |
| LU37108A1 (xx) | |
| GB883493A (en) | 1961-11-29 |