GB459081A - A process of treating mixtures containing free sulphuric acid and acid alkyl esters - Google Patents

A process of treating mixtures containing free sulphuric acid and acid alkyl esters

Info

Publication number
GB459081A
GB459081A GB18468/35A GB1846835A GB459081A GB 459081 A GB459081 A GB 459081A GB 18468/35 A GB18468/35 A GB 18468/35A GB 1846835 A GB1846835 A GB 1846835A GB 459081 A GB459081 A GB 459081A
Authority
GB
United Kingdom
Prior art keywords
acid
sulphuric acid
water
mixture
alcohol
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
GB18468/35A
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.)
Bataafsche Petroleum Maatschappij NV
Original Assignee
Bataafsche Petroleum Maatschappij NV
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 Bataafsche Petroleum Maatschappij NV filed Critical Bataafsche Petroleum Maatschappij NV
Publication of GB459081A publication Critical patent/GB459081A/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
    • C07C303/42—Separation; Purification; Stabilisation; Use of additives
    • C07C303/44—Separation; Purification

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

The mixture of sulphuric acid and acid sulphuric esters derived from aliphatic alcohols is separated into two layers by the addition of a restricted quantity of water or an aqueous medium. The free sulphuric acid is thereby recovered in fairly concentrated condition. Water containing a little alcohol or ether may be used as the aqueous medium and also an aqueous salt solution when the alkyl radicle of the acid esters contain less than ten carbon atoms. In an example, a mixture obtained by sulphonating commercial primary hexadecyl alcohol with sulphuric acid is treated with water and alcohol, an acid of 56 per cent concentration being obtained. After separation of the free sulphuric acid, further addition of water again produces two layers, the lower comprising an alkylsulphuric ester and the upper a mixture of polymers, neutral esters and uncoverted products. Specifications 446,026 and 459,080 are referred to.
GB18468/35A 1935-04-01 1935-06-27 A process of treating mixtures containing free sulphuric acid and acid alkyl esters Expired GB459081A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL459081X 1935-04-01

Publications (1)

Publication Number Publication Date
GB459081A true GB459081A (en) 1936-12-28

Family

ID=19786372

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18468/35A Expired GB459081A (en) 1935-04-01 1935-06-27 A process of treating mixtures containing free sulphuric acid and acid alkyl esters

Country Status (1)

Country Link
GB (1) GB459081A (en)

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