GB254402A - Improvements in the manufacture of naphthylamine sulpho acids - Google Patents
Improvements in the manufacture of naphthylamine sulpho acidsInfo
- Publication number
- GB254402A GB254402A GB904325A GB904325A GB254402A GB 254402 A GB254402 A GB 254402A GB 904325 A GB904325 A GB 904325A GB 904325 A GB904325 A GB 904325A GB 254402 A GB254402 A GB 254402A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ammonia
- naphthalene
- naphthylamine
- manufacture
- nitro
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000002253 acid Substances 0.000 title abstract 2
- 238000004519 manufacturing process Methods 0.000 title 1
- -1 naphthylamine sulpho acids Chemical class 0.000 title 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 8
- 229910021529 ammonia Inorganic materials 0.000 abstract 4
- RJKGJBPXVHTNJL-UHFFFAOYSA-N 1-nitronaphthalene Chemical compound C1=CC=C2C([N+](=O)[O-])=CC=CC2=C1 RJKGJBPXVHTNJL-UHFFFAOYSA-N 0.000 abstract 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 abstract 2
- 239000000203 mixture Substances 0.000 abstract 2
- RUFPHBVGCFYCNW-UHFFFAOYSA-N 1-naphthylamine Chemical compound C1=CC=C2C(N)=CC=CC2=C1 RUFPHBVGCFYCNW-UHFFFAOYSA-N 0.000 abstract 1
- PQUCIEFHOVEZAU-UHFFFAOYSA-N Diammonium sulfite Chemical class [NH4+].[NH4+].[O-]S([O-])=O PQUCIEFHOVEZAU-UHFFFAOYSA-N 0.000 abstract 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 abstract 1
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 abstract 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical class OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 abstract 1
- 150000007513 acids Chemical class 0.000 abstract 1
- 239000007864 aqueous solution Substances 0.000 abstract 1
- 239000012452 mother liquor Substances 0.000 abstract 1
- PSZYNBSKGUBXEH-UHFFFAOYSA-N naphthalene-1-sulfonic acid Chemical compound C1=CC=C2C(S(=O)(=O)O)=CC=CC2=C1 PSZYNBSKGUBXEH-UHFFFAOYSA-N 0.000 abstract 1
- NRZRRZAVMCAKEP-UHFFFAOYSA-N naphthionic acid Chemical compound C1=CC=C2C(N)=CC=C(S(O)(=O)=O)C2=C1 NRZRRZAVMCAKEP-UHFFFAOYSA-N 0.000 abstract 1
- 230000003472 neutralizing effect Effects 0.000 abstract 1
- 229910052708 sodium Inorganic materials 0.000 abstract 1
- 239000011734 sodium Substances 0.000 abstract 1
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 abstract 1
- 239000004289 sodium hydrogen sulphite Substances 0.000 abstract 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
254,402. Ehrhardt, E. F., and Hereward, R. M. April 4, 1925. Naphthylamine sulphonic acids are obtained by treating 1-nitro-naphthalene with an alkaline sulphite, or a mixture of alkaline sulphites, and ammonia under pressure in aqueous solution. Preferably a mixture of sodium and ammonium sulphites, obtained by neutralizing sodium bisulphite with ammonia, is used. This is heated with 1-nitro-naphthalene and ammonia in an autoclave and the product is poured into water, filtered, boiled to remove the excess of ammonia, and acidified with hydrochloric acid. Naphthionic acid separates out and is removed; 1 : 5 naphthalene sulphonic acid can be obtained from the mother liquor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB904325A GB254402A (en) | 1925-04-04 | 1925-04-04 | Improvements in the manufacture of naphthylamine sulpho acids |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB904325A GB254402A (en) | 1925-04-04 | 1925-04-04 | Improvements in the manufacture of naphthylamine sulpho acids |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB254402A true GB254402A (en) | 1926-07-05 |
Family
ID=9864279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB904325A Expired GB254402A (en) | 1925-04-04 | 1925-04-04 | Improvements in the manufacture of naphthylamine sulpho acids |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB254402A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0214543A3 (en) * | 1985-09-07 | 1989-01-25 | Bayer Ag | Process for the preparation of 1-aminonaphthalene-2,4,7-trisulfonic acid and 1-aminonaphthalene-7-sulfonic acid |
| CN110372547A (en) * | 2018-04-12 | 2019-10-25 | 浙江龙盛化工研究有限公司 | A method of preparing 1- amino -4- sodium naphthalene sulfonate |
-
1925
- 1925-04-04 GB GB904325A patent/GB254402A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0214543A3 (en) * | 1985-09-07 | 1989-01-25 | Bayer Ag | Process for the preparation of 1-aminonaphthalene-2,4,7-trisulfonic acid and 1-aminonaphthalene-7-sulfonic acid |
| CN110372547A (en) * | 2018-04-12 | 2019-10-25 | 浙江龙盛化工研究有限公司 | A method of preparing 1- amino -4- sodium naphthalene sulfonate |
| CN110372547B (en) * | 2018-04-12 | 2021-12-21 | 浙江科永化工有限公司 | Method for preparing 1-amino-4-sodium naphthalene sulfonate |
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