JPS5233661A - Process for preparation of 2-naphthol-3,6_disulfonic acid salts - Google Patents
Process for preparation of 2-naphthol-3,6_disulfonic acid saltsInfo
- Publication number
- JPS5233661A JPS5233661A JP10974275A JP10974275A JPS5233661A JP S5233661 A JPS5233661 A JP S5233661A JP 10974275 A JP10974275 A JP 10974275A JP 10974275 A JP10974275 A JP 10974275A JP S5233661 A JPS5233661 A JP S5233661A
- Authority
- JP
- Japan
- Prior art keywords
- naphthol
- preparation
- acid salts
- disulfonic acid
- useful
- 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.)
- Pending
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
PURPOSE: The title compounds, useful as intermediates of dyes and coloring materials for food additives, and useful as reagents for sensitized papers, are prepared in high yield with reusing the sulfonic residue in the reaction.
COPYRIGHT: (C)1977,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10974275A JPS5233661A (en) | 1975-09-09 | 1975-09-09 | Process for preparation of 2-naphthol-3,6_disulfonic acid salts |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10974275A JPS5233661A (en) | 1975-09-09 | 1975-09-09 | Process for preparation of 2-naphthol-3,6_disulfonic acid salts |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5233661A true JPS5233661A (en) | 1977-03-14 |
Family
ID=14518084
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10974275A Pending JPS5233661A (en) | 1975-09-09 | 1975-09-09 | Process for preparation of 2-naphthol-3,6_disulfonic acid salts |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5233661A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107963986A (en) * | 2017-11-30 | 2018-04-27 | 浙江龙盛化工研究有限公司 | A kind of method of co-producing high-purity Xue Fo Shi salt and G salt |
CN108358819A (en) * | 2018-03-14 | 2018-08-03 | 荆门市熊兴化工有限公司 | A method of it is produced from K acid and recycles R salt in mother liquor |
-
1975
- 1975-09-09 JP JP10974275A patent/JPS5233661A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107963986A (en) * | 2017-11-30 | 2018-04-27 | 浙江龙盛化工研究有限公司 | A kind of method of co-producing high-purity Xue Fo Shi salt and G salt |
CN108358819A (en) * | 2018-03-14 | 2018-08-03 | 荆门市熊兴化工有限公司 | A method of it is produced from K acid and recycles R salt in mother liquor |
CN108358819B (en) * | 2018-03-14 | 2020-11-13 | 荆门市丽康源纺织科技有限公司 | Method for recovering R salt from K acid production mother liquor |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5331732A (en) | Preparation of bisazo dye | |
JPS52156844A (en) | Preparation of 8-amino-1-naphthol-3,6-disulfonic acid | |
JPS5233661A (en) | Process for preparation of 2-naphthol-3,6_disulfonic acid salts | |
GB1494979A (en) | Process for the production of 1-aminobenzene-4-and-5-beta-sulphatoethylsulphone-2-sulphonic acid and their hydroxyethylsulphone-and vinylsulphone derivatives | |
JPS5278828A (en) | Preparation of high concentration olefin sulfonate solution | |
JPS5210221A (en) | Process for preparation of perfluoroalkylethers containing fluorosulfo nyl group | |
JPS51118741A (en) | Process for preparation of ortho-chlorobenzonitrile | |
JPS51123223A (en) | Process for producing condensation products | |
JPS5214731A (en) | Process for preparation of 4-nitro-3-substituted or unsubstituted-n-al kylanilines | |
JPS5246023A (en) | Process for preparation of organosulfinic acid salts | |
JPS51116830A (en) | Preparation of anthraquinone blue dyes | |
JPS5231059A (en) | Preparation of oxybenzoylbenzoic acids | |
ES8106750A1 (en) | Process for the preparation of concentrated solutions of metal complex dyestuffs free from sulfonic groups. | |
JPS5212145A (en) | Improved process for preparation of aromatic sulfonic acid alkali salt | |
JPS5247098A (en) | Process for preparing modified polyesters | |
JPS5223045A (en) | Preparation of tropothiones | |
JPS5214720A (en) | Process for preparation of sodium malate hydrate | |
JPS5432476A (en) | Preparation of 3-aminopyridines | |
JPS537619A (en) | Novel preparation of alpha-mercaptoamino acid derivatives | |
JPS5268185A (en) | Preparation of 4-sulfonaphthalimides | |
JPS5225761A (en) | Preparation of hydroxylaminoanthraquinones | |
JPS5242523A (en) | Preparation of color compound | |
JPS5323960A (en) | Preparation of diphenoxyanthaquinones | |
JPS52153919A (en) | Preparation of resorcin | |
JPS5540648A (en) | Selective production of 1,6-naphthalenedisolfonic acid |