GB1418896A - Separation of sulphitation reaction products - Google Patents

Separation of sulphitation reaction products

Info

Publication number
GB1418896A
GB1418896A GB1308972A GB1308972A GB1418896A GB 1418896 A GB1418896 A GB 1418896A GB 1308972 A GB1308972 A GB 1308972A GB 1308972 A GB1308972 A GB 1308972A GB 1418896 A GB1418896 A GB 1418896A
Authority
GB
United Kingdom
Prior art keywords
bisulphite
phase
separating
components
addition
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
GB1308972A
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.)
Unilever PLC
Original Assignee
Unilever PLC
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 Unilever PLC filed Critical Unilever PLC
Priority to GB1308972A priority Critical patent/GB1418896A/en
Priority to DE19732313362 priority patent/DE2313362A1/en
Priority to CA167,253A priority patent/CA1006545A/en
Priority to IT6779773A priority patent/IT980646B/en
Priority to JP3253073A priority patent/JPS495918A/ja
Publication of GB1418896A publication Critical patent/GB1418896A/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

Landscapes

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

Abstract

1418896 Alkanesulphonates UNILEVER Ltd 19 March 1973 [21 March 1972] 13089/72 Heading C2C A process of separating constituents of a reaction product mixture resulting from the sulphitation of an olefinic species (C 8 -C 22 ) contained in an organic starting material and comprising: (a) the olefinic-bisulphite adduct (alkanesulphonate), (b) unreacted organic material including the olefinic species, (c) water, (d) a short chain alcohol (C 2 -C 4 ), (e) sulphite and bisulphite ions, comprises the steps of: (i) separating the solid adduct from the other components by an evaporative process, and condensing the other components to form a liquid phase, (ii) settling the liquid phase components and removing the top phase which consists essentially of the unreacted organic material; (iii) introducing bisulphite ions into the bottom phase of step (ii) and allowing the whole to settle, after solution of any solid added, to form two phases; (iv) separating the top phase, consisting essentially of an alcohol/water mixture and the bottom phase, which consists essentially of an aqueous solution of the bisulphite material. The process may be operated continuously. Bisulphite ions may be introduced by (i) addition of a mixture of solid sulphite and bisulphite, (ii) addition of an alkali and a metabisulphite, or (iii) addition of a hydroxide followed by SO 2 .
GB1308972A 1972-03-21 1972-03-21 Separation of sulphitation reaction products Expired GB1418896A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB1308972A GB1418896A (en) 1972-03-21 1972-03-21 Separation of sulphitation reaction products
DE19732313362 DE2313362A1 (en) 1972-03-21 1973-03-17 PROCESS FOR SEPARATION OF THE COMPONENTS IN A REACTION PRODUCT OF SULFITATION OF OLEFINIC MATERIAL
CA167,253A CA1006545A (en) 1972-03-21 1973-03-20 Separation of sulphitation reaction products
IT6779773A IT980646B (en) 1972-03-21 1973-03-20 PROCEDURE FOR THE SEPARATION OF THE CONSTITUENTS OF A SULPHITATION PRODUCT OF OIL FINIC MATERIALS
JP3253073A JPS495918A (en) 1972-03-21 1973-03-20

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1308972A GB1418896A (en) 1972-03-21 1972-03-21 Separation of sulphitation reaction products

Publications (1)

Publication Number Publication Date
GB1418896A true GB1418896A (en) 1975-12-24

Family

ID=10016639

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1308972A Expired GB1418896A (en) 1972-03-21 1972-03-21 Separation of sulphitation reaction products

Country Status (5)

Country Link
JP (1) JPS495918A (en)
CA (1) CA1006545A (en)
DE (1) DE2313362A1 (en)
GB (1) GB1418896A (en)
IT (1) IT980646B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5352595A (en) * 1976-10-21 1978-05-13 Nippon Ester Co Ltd Preparation of polyester
US7459113B2 (en) 2004-03-08 2008-12-02 Eastman Chemical Company Process of making a container from polyester polymer particles having a small surface to center intrinsic-viscosity gradient
US7358322B2 (en) 2004-03-09 2008-04-15 Eastman Chemical Company High IV melt phase polyester polymer catalyzed with antimony containing compounds
US7935399B2 (en) 2004-09-02 2011-05-03 Grupo Petrotemex, S.A. De C.V. Low melting polyester polymers
US8557950B2 (en) 2005-06-16 2013-10-15 Grupo Petrotemex, S.A. De C.V. High intrinsic viscosity melt phase polyester polymers with acceptable acetaldehyde generation rates

Also Published As

Publication number Publication date
JPS495918A (en) 1974-01-19
IT980646B (en) 1974-10-10
CA1006545A (en) 1977-03-08
DE2313362A1 (en) 1973-10-11

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee