SU186905A1 - - Google Patents
Info
- Publication number
- SU186905A1 SU186905A1 SU1014094A SU1014094A SU186905A1 SU 186905 A1 SU186905 A1 SU 186905A1 SU 1014094 A SU1014094 A SU 1014094A SU 1014094 A SU1014094 A SU 1014094A SU 186905 A1 SU186905 A1 SU 186905A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- acid
- sodium salt
- paraoxymethylbenzoic
- filtered
- water
- Prior art date
Links
- 239000002253 acid Substances 0.000 description 14
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 159000000000 sodium salts Chemical class 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000009835 boiling Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 239000000706 filtrate Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 235000011121 sodium hydroxide Nutrition 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 150000001261 hydroxy acids Chemical class 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU186905A1 true SU186905A1 (enrdf_load_stackoverflow) |
Family
ID=
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4721808A (en) * | 1987-04-21 | 1988-01-26 | Amoco Corporation | Process for purification of crude p-hydroxymethylbenzoic acid |
| US4731475A (en) * | 1986-04-30 | 1988-03-15 | Nippon Petrochemicals Co., Ltd. | Method for preparing solid p-disodium hydroxybenzoate |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4731475A (en) * | 1986-04-30 | 1988-03-15 | Nippon Petrochemicals Co., Ltd. | Method for preparing solid p-disodium hydroxybenzoate |
| US4721808A (en) * | 1987-04-21 | 1988-01-26 | Amoco Corporation | Process for purification of crude p-hydroxymethylbenzoic acid |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| USRE48238E1 (en) | Process for producing taurine from alkali taurinates | |
| JPS5935381B2 (ja) | （＋）−および（−）−６−メトキシ−α−メチル−２−ナフタレン酢酸の分割法 | |
| US4002666A (en) | Process for the preparation of optically active p-hydroxyphenylglycine | |
| RU2289572C2 (ru) | Способ получения 1-(аминометил) циклогексануксусной кислоты | |
| SU186905A1 (enrdf_load_stackoverflow) | ||
| US20210332021A1 (en) | Process and salts for the preparation of 2,5-furandicarboxylic acid | |
| SU157689A1 (enrdf_load_stackoverflow) | ||
| SU535294A1 (ru) | Способ получени 2,5-дихлор-4-алкилмеркаптофенолов | |
| SU582763A3 (ru) | Способ получени щелочных или щелочноземельных солей 2сульфат- -аскорбиновой кислоты | |
| CN105294620A (zh) | 4-氨基-5-氯-2,3-二氢-7-苯并呋喃甲酸的合成方法 | |
| CN112661719B (zh) | 一种氨噻肟酸的清洁制备工艺 | |
| RU2043993C1 (ru) | Способ получения гексагидрата тринатрийфосфоноформиата | |
| SU408943A1 (ru) | Способ получения l-винной кислоты | |
| GB570341A (en) | Resolution of ª‡-hydroxy-ª‰:ª‰-dimethyl-ª†-butyrolactone | |
| SU257506A1 (enrdf_load_stackoverflow) | ||
| US2635113A (en) | Manufacture of bis(alkoxy-benzamido)-stilbene-disulfonates | |
| SU175449A1 (ru) | Способ производства кристаллической глюкозы | |
| US2750391A (en) | Separation of nicotinamide from its isomers | |
| SU170521A1 (ru) | Способ получения лактамов 6- | |
| SU245072A1 (ru) | Способ получения флуорантил-4-уксусной кислоты | |
| SU211539A1 (ru) | Способ получения несимметрично дизамёщенногокарбамида | |
| RU1781171C (ru) | Способ получени декагидрата карбоната натри | |
| US2710865A (en) | Production of pyrazine-2, 3 dicarboxylic acid | |
| JPH06345717A (ja) | アミノエタンスルホン酸類の精製方法 | |
| SU355797A1 (ru) | Способ получения о- |