GB907612A - Improvements relating to the production of 2-naphthalene sulphuric acid - Google Patents
Improvements relating to the production of 2-naphthalene sulphuric acidInfo
- Publication number
- GB907612A GB907612A GB2732961A GB2732961A GB907612A GB 907612 A GB907612 A GB 907612A GB 2732961 A GB2732961 A GB 2732961A GB 2732961 A GB2732961 A GB 2732961A GB 907612 A GB907612 A GB 907612A
- Authority
- GB
- United Kingdom
- Prior art keywords
- naphthalene
- acid
- sulphuric acid
- production
- 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
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 title abstract 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 title abstract 4
- 235000011149 sulphuric acid Nutrition 0.000 title abstract 4
- 239000001117 sulphuric acid Substances 0.000 title abstract 3
- 239000002244 precipitate Substances 0.000 abstract 2
- 239000011541 reaction mixture Substances 0.000 abstract 2
- FRASJONUBLZVQX-UHFFFAOYSA-N 1,4-naphthoquinone Chemical compound C1=CC=C2C(=O)C=CC(=O)C2=C1 FRASJONUBLZVQX-UHFFFAOYSA-N 0.000 abstract 1
- 239000002253 acid Substances 0.000 abstract 1
- 150000007513 acids Chemical class 0.000 abstract 1
- 239000006227 byproduct Substances 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 239000000203 mixture 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
- KVBGVZZKJNLNJU-UHFFFAOYSA-N naphthalene-2-sulfonic acid Chemical compound C1=CC=CC2=CC(S(=O)(=O)O)=CC=C21 KVBGVZZKJNLNJU-UHFFFAOYSA-N 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-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 produced by sulphonating naphthalene with sulphuric acid in presence of at least 10%, based on the weight of naphthalene, of 1-naphthalene sulphonic acid, 1 : 6-naphthalene disulphonic acid and/or 1 : 7-naphthalene disulphonic acid; a mixture of the three latter acids obtained as a by product in a previous sulphonation may be used. The sulphonation may be effected in presence of a non-reactive entraining agent forming with water an azeotrope which distils from the reaction mixture. It is preferred to dilute the hot reaction mixture with aqueous sulphuric acid to a concentration of 25-35% H2SO4, cool until 2-naphthalene sulphonic acid hydrate precipitates and separate the precipitate.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US5761560A | 1960-09-22 | 1960-09-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB907612A true GB907612A (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 After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2607662A Expired GB907613A (en) | 1960-09-22 | 1961-07-27 | Improvements relating to the purification of 2-naphthalene sulphonic acid |
Country Status (1)
| Country | Link |
|---|---|
| GB (2) | GB907612A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012147037A3 (en) * | 2011-04-26 | 2012-12-27 | 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 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104725286B (en) * | 2015-04-17 | 2017-04-05 | 上海天坛助剂有限公司 | A kind of method that utilization spent acid produces sulfonated oil |
-
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 (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012147037A3 (en) * | 2011-04-26 | 2012-12-27 | 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 |
| CN103687848A (en) * | 2011-04-26 | 2014-03-26 | 布哈德莱什·K·帕迪亚 | Sustainable chemical process for isolation of naphthalene sulphonic acid compounds with inherent recycle of all acidic streams generated during isolation and washing |
| CN103687848B (en) * | 2011-04-26 | 2018-04-24 | 布哈德莱什·K·帕迪亚 | Utilize the sustainable chemistry method of the Intrinsical recycling separation naphthalene sulfonic acids compound of all acid streams produced during separation and washing |
Also Published As
| Publication number | Publication date |
|---|---|
| GB907613A (en) | 1962-10-10 |
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