JPS6219424B2 - - Google Patents
Info
- Publication number
- JPS6219424B2 JPS6219424B2 JP15343479A JP15343479A JPS6219424B2 JP S6219424 B2 JPS6219424 B2 JP S6219424B2 JP 15343479 A JP15343479 A JP 15343479A JP 15343479 A JP15343479 A JP 15343479A JP S6219424 B2 JPS6219424 B2 JP S6219424B2
- Authority
- JP
- Japan
- Prior art keywords
- naphthalene
- disulfonic acid
- acid
- sulfuric acid
- disulfonic
- 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
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 114
- VILFVXYKHXVYAB-UHFFFAOYSA-N naphthalene-2,7-disulfonic acid Chemical compound C1=CC(S(O)(=O)=O)=CC2=CC(S(=O)(=O)O)=CC=C21 VILFVXYKHXVYAB-UHFFFAOYSA-N 0.000 claims description 37
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 claims description 32
- 239000002253 acid Substances 0.000 claims description 24
- FITZJYAVATZPMJ-UHFFFAOYSA-N naphthalene-2,6-disulfonic acid Chemical compound C1=C(S(O)(=O)=O)C=CC2=CC(S(=O)(=O)O)=CC=C21 FITZJYAVATZPMJ-UHFFFAOYSA-N 0.000 claims description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- 239000003795 chemical substances by application Substances 0.000 claims description 17
- 239000007788 liquid Substances 0.000 claims description 13
- PSZYNBSKGUBXEH-UHFFFAOYSA-N naphthalene-1-sulfonic acid Chemical compound C1=CC=C2C(S(=O)(=O)O)=CC=CC2=C1 PSZYNBSKGUBXEH-UHFFFAOYSA-N 0.000 claims description 11
- 238000004519 manufacturing process Methods 0.000 claims description 9
- YZMHQCWXYHARLS-UHFFFAOYSA-N naphthalene-1,2-disulfonic acid Chemical compound C1=CC=CC2=C(S(O)(=O)=O)C(S(=O)(=O)O)=CC=C21 YZMHQCWXYHARLS-UHFFFAOYSA-N 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000000243 solution Substances 0.000 description 15
- 238000006243 chemical reaction Methods 0.000 description 13
- 238000006317 isomerization reaction Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 239000000047 product Substances 0.000 description 7
- 238000007865 diluting Methods 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 238000003756 stirring Methods 0.000 description 6
- 239000007795 chemical reaction product Substances 0.000 description 5
- 239000012141 concentrate Substances 0.000 description 5
- 239000013078 crystal Substances 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- -1 disulfonic acid Chemical class 0.000 description 2
- 238000006386 neutralization reaction Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000006277 sulfonation reaction Methods 0.000 description 2
- 239000003513 alkali Substances 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 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 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15343479A JPS5677254A (en) | 1979-11-27 | 1979-11-27 | Preparation of naphthalene-2,7-disulfonic acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15343479A JPS5677254A (en) | 1979-11-27 | 1979-11-27 | Preparation of naphthalene-2,7-disulfonic acid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5677254A JPS5677254A (en) | 1981-06-25 |
| JPS6219424B2 true JPS6219424B2 (enrdf_load_stackoverflow) | 1987-04-28 |
Family
ID=15562428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15343479A Granted JPS5677254A (en) | 1979-11-27 | 1979-11-27 | Preparation of naphthalene-2,7-disulfonic acid |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5677254A (enrdf_load_stackoverflow) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102993061B (zh) * | 2012-07-30 | 2013-09-18 | 枣庄市泰瑞精细化工有限公司 | 一种利用1，6-萘二磺酸产品母液转化生产2，7-萘二磺酸钠产品的制备方法 |
-
1979
- 1979-11-27 JP JP15343479A patent/JPS5677254A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5677254A (en) | 1981-06-25 |
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