GB853156A - Improvements in or relating to the production of m-sulphoisophthalic acid - Google Patents
Improvements in or relating to the production of m-sulphoisophthalic acidInfo
- Publication number
- GB853156A GB853156A GB33671/58A GB3367158A GB853156A GB 853156 A GB853156 A GB 853156A GB 33671/58 A GB33671/58 A GB 33671/58A GB 3367158 A GB3367158 A GB 3367158A GB 853156 A GB853156 A GB 853156A
- Authority
- GB
- United Kingdom
- Prior art keywords
- acid
- sulphoisophthalic acid
- relating
- production
- sulphoisophthalic
- 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
- SGBXIDHAUUXLOV-UHFFFAOYSA-N 1-sulfocyclohexa-3,5-diene-1,3-dicarboxylic acid Chemical compound OC(=O)C1=CC=CC(S(O)(=O)=O)(C(O)=O)C1 SGBXIDHAUUXLOV-UHFFFAOYSA-N 0.000 title abstract 2
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 abstract 4
- AKEJUJNQAAGONA-UHFFFAOYSA-N sulfur trioxide Chemical compound O=S(=O)=O AKEJUJNQAAGONA-UHFFFAOYSA-N 0.000 abstract 4
- 238000000034 method Methods 0.000 abstract 2
- 239000002253 acid Substances 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 239000000376 reactant Substances 0.000 abstract 1
- 239000007787 solid Substances 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
- C07C303/02—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
Meta-sulphoisophthalic acid is prepared by mixing solid isophthalic acid and liquid sulphur trioxide and heating the mixture under substantially atmospheric pressure to a temperature above 160 DEG C., preferably 200 DEG -260 DEG C., until the isophthalic acid is substantially completely sulphonated. Equimolar amounts of the reactants may be used but preferably a slight excess of sulphur trioxide is used. The product of the process is substantially pure M-sulphoisophthalic acid. Batch and continuous versions of the process are specified in Examples.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US853156XA | 1957-10-21 | 1957-10-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB853156A true GB853156A (en) | 1960-11-02 |
Family
ID=22190791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB33671/58A Expired GB853156A (en) | 1957-10-21 | 1958-10-21 | Improvements in or relating to the production of m-sulphoisophthalic acid |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB853156A (en) |
-
1958
- 1958-10-21 GB GB33671/58A patent/GB853156A/en not_active Expired
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ES434474A1 (en) | PROCEDURE FOR OBTAINING A PROTEINIC YEAST PRODUCT WITH A LOW NUCLEIC ACID CONTENT. | |
| GB1072711A (en) | Improvements in and relating to surface-active olefine sulphonates | |
| ES439669A1 (en) | Production of hydrogen fluoride and calcium sulfate | |
| GB853156A (en) | Improvements in or relating to the production of m-sulphoisophthalic acid | |
| GB994607A (en) | Process for preparing fluoroalkanols | |
| GB1084375A (en) | Method of making tetrabromophthalic acid anhydride | |
| GB950668A (en) | Improved production of direct positives by the silver salt diffusion process and a developer solution therefor | |
| GB768893A (en) | Process for the production of methyl bromide | |
| GB1101238A (en) | Process for the preparation of ethionic acid | |
| GB943536A (en) | Process for the production of methacrylic acid derivatives | |
| GB895473A (en) | Improvements in or relating to 4, 4-dichlorodiphenyl sulphone | |
| SE7712787L (en) | PROCEDURE FOR THE PREPARATION OF N, N-DIMETHYLPIPERIDINIUM OR N, N-DIMETHYL MORPHOLINIUM CHLORIDE | |
| GB946014A (en) | Production of dichlorobutadiene | |
| GB876487A (en) | Preparation of acetonedicarboxylic acid and esters thereof | |
| GB1041537A (en) | Mixtures containing crotonylidene diurea | |
| GB819677A (en) | Process for preparing hexachloropentenones and pentachlorodienoic acid | |
| GB975301A (en) | Production of sulphamic acid | |
| SU129654A1 (en) | The method of joint preparation of concentrated isoamylenes and paraisoamylphenol | |
| GB939577A (en) | Method for manufacture of 5-chloro-2, 4-bis (methylsulfamyl)-aniline | |
| GB943179A (en) | A process for the manufacture of 1,1,1-trichloroethane | |
| GB874070A (en) | Process for the production of n -sulphanilyl-n-butyl urea | |
| GB786007A (en) | Thiazolo-pyrimidines | |
| GB958866A (en) | Production of ethylene sulphide | |
| GB1019084A (en) | Process for the manufacture of naphthalene-2-sulphonic acid | |
| GB996517A (en) | Improvements in or relating to the production of pyrosulphuryl chloride |