GB727669A - Process for the neutralization of sulphonic acids - Google Patents

Process for the neutralization of sulphonic acids

Info

Publication number
GB727669A
GB727669A GB10037/52A GB1003752A GB727669A GB 727669 A GB727669 A GB 727669A GB 10037/52 A GB10037/52 A GB 10037/52A GB 1003752 A GB1003752 A GB 1003752A GB 727669 A GB727669 A GB 727669A
Authority
GB
United Kingdom
Prior art keywords
tower
sulphonic acids
sulphonic
nozzles
acid
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
Application number
GB10037/52A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ruhrchemie AG
Original Assignee
Ruhrchemie AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ruhrchemie AG filed Critical Ruhrchemie AG
Publication of GB727669A publication Critical patent/GB727669A/en
Expired legal-status Critical Current

Links

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
    • C07C303/32—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of salts of sulfonic acids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B7/00—Automatic or semi-automatic turning-machines with a single working-spindle, e.g. controlled by cams; Equipment therefor; Features common to automatic and semi-automatic turning-machines with one or more working-spindles
    • B23B7/02—Automatic or semi-automatic machines for turning of stock
    • B23B7/04—Turret machines
    • 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

Abstract

Alkyl aryl sulphonic acids are rendered substantially neutral by a process comprising contacting a finely divided stream of the acid with a finely divided stream of an aqueous solution of alkali metal carbonate in substantially equivalent proportions, the contacting being effected in the upper part of a tower into which the two streams are passed through separate nozzles provided closely together. The two nozzles may be arranged side by side at the top of the tower with their outlets directed towards each other or the nozzles may be arranged concentrically. Gases comprising liberated carbon dioxide, air used to atomize the reactants and entrained sulphonates or sulphonic acids, issue from the tower top and are washed in a scrubber by a circulating water stream a portion of which, containing the sulphonates or sulphonic acids is intermittently or continuously withdrawn and added to the neutralized sulphonate solution collecting at the bottom of the neutralizer-tower, fresh make-up water being added to the washing system. The neutralized solution may be withdrawn to a second vessel where its pH may be adjusted to desired value by means of alkali metal hydroxide or carbonate or sulphonic or sulphuric acid. An example describes the neutralization of a C10-mono alkyl benzene sulphonic acid with aqueous sodium carbonate.
GB10037/52A 1951-04-25 1952-04-21 Process for the neutralization of sulphonic acids Expired GB727669A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE305112X 1951-04-25

Publications (1)

Publication Number Publication Date
GB727669A true GB727669A (en) 1955-04-06

Family

ID=6120717

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10037/52A Expired GB727669A (en) 1951-04-25 1952-04-21 Process for the neutralization of sulphonic acids

Country Status (5)

Country Link
BE (1) BE510844A (en)
CH (1) CH305112A (en)
FR (1) FR1055045A (en)
GB (1) GB727669A (en)
NL (1) NL169027C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5189207A (en) * 1987-12-07 1993-02-23 Henkel Kommanditgesellschaft Auf Aktien Process for the production of solid or paste-form products

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5189207A (en) * 1987-12-07 1993-02-23 Henkel Kommanditgesellschaft Auf Aktien Process for the production of solid or paste-form products

Also Published As

Publication number Publication date
FR1055045A (en) 1954-02-16
BE510844A (en)
CH305112A (en) 1955-02-15
NL169027C (en)

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