GB947866A - Process for the manufacture of benzene-1:3-disulphonic acid - Google Patents
Process for the manufacture of benzene-1:3-disulphonic acidInfo
- Publication number
- GB947866A GB947866A GB1640760A GB1640760A GB947866A GB 947866 A GB947866 A GB 947866A GB 1640760 A GB1640760 A GB 1640760A GB 1640760 A GB1640760 A GB 1640760A GB 947866 A GB947866 A GB 947866A
- Authority
- GB
- United Kingdom
- Prior art keywords
- benzene
- inlet
- vapour
- disulphonic acid
- mixture
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C309/00—Sulfonic acids; Halides, esters, or anhydrides thereof
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
<PICT:0947866/C2/1> In a continuous process for the manufacture of benzene -1, 3-disulphonic acid wherein sulphur trioxide is reacted with benzene, at a temperature above 100 DEG C., in a closed system of tubes 6, 7 containing a sulphonation-mixture comprising benzene-1, 3-disulphonic acid and sulphuric acid or sulphur trioxide, the mixture is circulated through the system by benzene vapour under pressure, the benzene being introduced into the lower part of the system through inlet 1 either in the vapour or in the liquid state. Sulphur trioxide is introduced through inlet 2; and, if desired, sodium sulphate is introduced through inlet 3. Unreacted benzene vapour is condensed in condenser 5. The finished sulphonation mixture is discharged into receiver 4 at a rate corresponding to the rate of addition of the reactants. In Example 1, tube 6 is maintained at 150 DEG C., and tube 7 at 140 DEG C. Benzene vapour under pressure is introduced through inlet 1. In Example 4, liquid benzene is pumped into inlet 1, and then vaporizes in the reaction tube.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEF28406A DE1104500B (en) | 1959-05-09 | 1959-05-09 | Process for the preparation of 1, 3-Benzoldisulfonsäure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB947866A true GB947866A (en) | 1964-01-29 |
Family
ID=7092870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1640760A Expired GB947866A (en) | 1959-05-09 | 1960-05-09 | Process for the manufacture of benzene-1:3-disulphonic acid |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE1104500B (en) |
| GB (1) | GB947866A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3268578A (en) * | 1963-09-05 | 1966-08-23 | Technion Res & Dev Foundation | Process for the sulphonation of benzene |
-
1959
- 1959-05-09 DE DEF28406A patent/DE1104500B/en active Pending
-
1960
- 1960-05-09 GB GB1640760A patent/GB947866A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE1104500B (en) | 1961-04-13 |
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