RO91524B1 - Procedeu de purificare a unui colorant monoazoic - Google Patents
Procedeu de purificare a unui colorant monoazoicInfo
- Publication number
- RO91524B1 RO91524B1 RO118348A RO11834885A RO91524B1 RO 91524 B1 RO91524 B1 RO 91524B1 RO 118348 A RO118348 A RO 118348A RO 11834885 A RO11834885 A RO 11834885A RO 91524 B1 RO91524 B1 RO 91524B1
- Authority
- RO
- Romania
- Prior art keywords
- monoazoic
- purifying
- dye
- colouring agent
- monosoic
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 2
- 238000004040 coloring Methods 0.000 title 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 abstract 2
- RUCHWTKMOWXHLU-UHFFFAOYSA-N 5-nitroanthranilic acid Chemical compound NC1=CC=C([N+]([O-])=O)C=C1C(O)=O RUCHWTKMOWXHLU-UHFFFAOYSA-N 0.000 abstract 1
- KYARBIJYVGJZLB-UHFFFAOYSA-N 7-amino-4-hydroxy-2-naphthalenesulfonic acid Chemical compound OC1=CC(S(O)(=O)=O)=CC2=CC(N)=CC=C21 KYARBIJYVGJZLB-UHFFFAOYSA-N 0.000 abstract 1
- 230000002378 acidificating effect Effects 0.000 abstract 1
- 239000012736 aqueous medium Substances 0.000 abstract 1
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 238000002425 crystallisation Methods 0.000 abstract 1
- 230000008025 crystallization Effects 0.000 abstract 1
- 238000006386 neutralization reaction Methods 0.000 abstract 1
- 238000001556 precipitation Methods 0.000 abstract 1
- 238000000746 purification Methods 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- 229910000029 sodium carbonate Inorganic materials 0.000 abstract 1
- 159000000000 sodium salts Chemical class 0.000 abstract 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Inventia se refera la un procedeu de purificare a unui colorant monozoic obtinut prin cuplarea acida a acidului 5-nitroantranilic diazotat cu acidul2-amino-5-naftol-7-sulfonic, urmata de separarea colorantului prin neutralizarea cu carbonat de sodiu si precipitarea sarii de sodiu a acestuia prin salifiere la cald, în conditii stricte de pH, temperatura, concentratie de colorant în mediul apos, grad de salifiere si regim de cristalizare.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO118348A RO91524B1 (ro) | 1985-04-10 | 1985-04-10 | Procedeu de purificare a unui colorant monoazoic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RO118348A RO91524B1 (ro) | 1985-04-10 | 1985-04-10 | Procedeu de purificare a unui colorant monoazoic |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RO91524A2 RO91524A2 (ro) | 1987-04-30 |
| RO91524B1 true RO91524B1 (ro) | 1987-05-01 |
Family
ID=20116968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RO118348A RO91524B1 (ro) | 1985-04-10 | 1985-04-10 | Procedeu de purificare a unui colorant monoazoic |
Country Status (1)
| Country | Link |
|---|---|
| RO (1) | RO91524B1 (ro) |
-
1985
- 1985-04-10 RO RO118348A patent/RO91524B1/ro unknown
Also Published As
| Publication number | Publication date |
|---|---|
| RO91524A2 (ro) | 1987-04-30 |
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