GB981545A - Production of improved condensation products from naphthalene sulphonic acids and aldehydes - Google Patents
Production of improved condensation products from naphthalene sulphonic acids and aldehydesInfo
- Publication number
- GB981545A GB981545A GB5969/63A GB596963A GB981545A GB 981545 A GB981545 A GB 981545A GB 5969/63 A GB5969/63 A GB 5969/63A GB 596963 A GB596963 A GB 596963A GB 981545 A GB981545 A GB 981545A
- Authority
- GB
- United Kingdom
- Prior art keywords
- condensation products
- aldehydes
- production
- naphthalene sulphonic
- sulphonic acids
- 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
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07G—COMPOUNDS OF UNKNOWN CONSTITUTION
- C07G99/00—Subject matter not provided for in other groups of this subclass
- C07G99/002—Compounds of unknown constitution containing sulfur
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
A process for producing naphthalene sulphonic acid/aldehyde condensation products comprises first treating the molten or dissolved acid with a current of steam or gas or with an oxidizing agent until it is free from sulphorous acid, and then reacting it with aldehyde and optionally with compounds which introduce aliphatic or cycloaliphatic radicals into the naphthalene nucleus. Specifications 7137/13, 928,123 and 948,695 are referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEB66100A DE1152405B (en) | 1962-02-24 | 1962-02-24 | Process for the preparation of improved condensation products from naphthalenesulfonic acids and aldehydes |
Publications (1)
Publication Number | Publication Date |
---|---|
GB981545A true GB981545A (en) | 1965-01-27 |
Family
ID=6975016
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5969/63A Expired GB981545A (en) | 1962-02-24 | 1963-02-14 | Production of improved condensation products from naphthalene sulphonic acids and aldehydes |
Country Status (3)
Country | Link |
---|---|
CH (1) | CH442280A (en) |
DE (1) | DE1152405B (en) |
GB (1) | GB981545A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4214872A (en) | 1974-09-05 | 1980-07-29 | Hoechst Aktiengesellschaft | Dispersing agents for finely dividing and stabilizing dyestuffs, pigments and optical brighteners as well as the dispersions thereby obtained |
-
1962
- 1962-02-24 DE DEB66100A patent/DE1152405B/en active Pending
-
1963
- 1963-01-18 CH CH64163A patent/CH442280A/en unknown
- 1963-02-14 GB GB5969/63A patent/GB981545A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4214872A (en) | 1974-09-05 | 1980-07-29 | Hoechst Aktiengesellschaft | Dispersing agents for finely dividing and stabilizing dyestuffs, pigments and optical brighteners as well as the dispersions thereby obtained |
Also Published As
Publication number | Publication date |
---|---|
CH442280A (en) | 1967-08-31 |
DE1152405B (en) | 1963-08-08 |
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