GB907613A - Improvements relating to the purification of 2-naphthalene sulphonic acid - Google Patents
Improvements relating to the purification of 2-naphthalene sulphonic acidInfo
- Publication number
- GB907613A GB907613A GB2607662A GB2607662A GB907613A GB 907613 A GB907613 A GB 907613A GB 2607662 A GB2607662 A GB 2607662A GB 2607662 A GB2607662 A GB 2607662A GB 907613 A GB907613 A GB 907613A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sulphonic acid
- purification
- naphthalene sulphonic
- naphthalene
- improvements relating
- 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
- KVBGVZZKJNLNJU-UHFFFAOYSA-N naphthalene-2-sulfonic acid Chemical compound C1=CC=CC2=CC(S(=O)(=O)O)=CC=C21 KVBGVZZKJNLNJU-UHFFFAOYSA-N 0.000 title abstract 2
- 238000000746 purification Methods 0.000 title 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 3
- 235000011149 sulphuric acid Nutrition 0.000 abstract 3
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 abstract 2
- 239000000203 mixture Substances 0.000 abstract 2
- 239000002244 precipitate Substances 0.000 abstract 2
- 239000001117 sulphuric acid Substances 0.000 abstract 2
- 238000001816 cooling Methods 0.000 abstract 1
- 238000007865 diluting Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- HKGOFWIZZIYCOS-UHFFFAOYSA-N naphthalene-2-sulfonic acid;hydrate Chemical compound O.C1=CC=CC2=CC(S(=O)(=O)O)=CC=C21 HKGOFWIZZIYCOS-UHFFFAOYSA-N 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-N sulfonic acid Chemical compound OS(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C303/00—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides
- C07C303/42—Separation; Purification; Stabilisation; Use of additives
- C07C303/44—Separation; Purification
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C303/00—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides
- C07C303/02—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of sulfonic acids or halides thereof
- C07C303/04—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of sulfonic acids or halides thereof by substitution of hydrogen atoms by sulfo or halosulfonyl groups
- C07C303/06—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of sulfonic acids or halides thereof by substitution of hydrogen atoms by sulfo or halosulfonyl groups by reaction with sulfuric acid or sulfur trioxide
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
2-Naphthalene sulphonic acid is separated from the hot mixture obtained by sulphonating naphthalene with sulphuric acid by diluting said mixture with aqueous sulphuric acid to a concentration of 25-35% H2SO4, cooling until 2-naphthalene sulphonic acid hydrate precipitates and separating the precipitate. The application of the invention to the separation of the sulphonic acid when obtained by the process of Specification 907,612 is specifically disclaimed.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US5761560A | 1960-09-22 | 1960-09-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB907613A true GB907613A (en) | 1962-10-10 |
Family
ID=22011701
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2732961A Expired GB907612A (en) | 1960-09-22 | 1961-07-27 | Improvements relating to the production of 2-naphthalene sulphuric acid |
| GB2607662A Expired GB907613A (en) | 1960-09-22 | 1961-07-27 | Improvements relating to the purification of 2-naphthalene sulphonic acid |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2732961A Expired GB907612A (en) | 1960-09-22 | 1961-07-27 | Improvements relating to the production of 2-naphthalene sulphuric acid |
Country Status (1)
| Country | Link |
|---|---|
| GB (2) | GB907612A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104725286A (en) * | 2015-04-17 | 2015-06-24 | 上海天坛助剂有限公司 | Method for using waste acid to produce sulfonated oil |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012147037A2 (en) * | 2011-04-26 | 2012-11-01 | Padia Bhadresh K | Sustainable chemical process for isolation of naphthalene sulphonic acid compounds with inherent recycle of all acidic streams generated during isolation and washing |
-
1961
- 1961-07-27 GB GB2732961A patent/GB907612A/en not_active Expired
- 1961-07-27 GB GB2607662A patent/GB907613A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104725286A (en) * | 2015-04-17 | 2015-06-24 | 上海天坛助剂有限公司 | Method for using waste acid to produce sulfonated oil |
Also Published As
| Publication number | Publication date |
|---|---|
| GB907612A (en) | 1962-10-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1013496A (en) | A process for the preparation of metal salts ofª‡-hydroxy-ª†-methyl mercapto butyricacid | |
| GB907613A (en) | Improvements relating to the purification of 2-naphthalene sulphonic acid | |
| GB989314A (en) | Concentration of bichromate solutions | |
| GB999137A (en) | Process for the production of hydrofluoric acid | |
| GB643825A (en) | Recovery of fluosulfonic acid | |
| GB915768A (en) | A process for the isolation of 4.4-dihydroxy diphenyl sulphone from mixtures thereof with the isomeric 2.4-dihydroxy diphenyl sulphone | |
| SU119876A1 (en) | The method of separation of alpha, alpha1-disulfonic acids of anthraquinone from sulfomass | |
| US1561985A (en) | Process for the production of sulphuric acid | |
| GB703470A (en) | Process for the manufacture of hydrazine sulfate | |
| GB435965A (en) | Process for the treatment of benzols, petrols and other hydrocarbons | |
| GB932827A (en) | Improvements in or relating to the manufacture of dimethylformamide | |
| SU72294A1 (en) | A method of processing alum on alumina, alkali metal sulfate and sulfuric acid | |
| GB910732A (en) | Recovery process | |
| GB326977A (en) | Improvements in the separation of mixtures of sulphuric acid and nitric acid | |
| AT175884B (en) | Process for the separation of caprolactam from its solutions in sulfuric acid or oleum | |
| GB974871A (en) | Process for simultaneously obtaining methacrylic acid amide and ammonium bisulphate | |
| GB958995A (en) | A process for the preparation of detergents | |
| GB686221A (en) | Improvements in the recovery of nickel from solutions | |
| GB623063A (en) | Improvements in or relating to the process for refining acetone | |
| GB818214A (en) | Process for isolating 4-chloro-meta-xylene and/or 2-chloro-meta-xylene from a mixture thereof | |
| GB1073824A (en) | Separation of a 4:4-bipyridylium salt from a mixture containing it | |
| GB561293A (en) | Acid recovery process | |
| GB933497A (en) | Distilling acid-treated hydrocarbon mixtures | |
| GB762205A (en) | Purification of acrylonitrile | |
| GB1009042A (en) | Preparation of 3-chlorocaprolactam |