FR2050731A5 - Purification of iiisophorone by 2-stage - distillation - Google Patents

Purification of iiisophorone by 2-stage - distillation

Info

Publication number
FR2050731A5
FR2050731A5 FR6920985A FR6920985A FR2050731A5 FR 2050731 A5 FR2050731 A5 FR 2050731A5 FR 6920985 A FR6920985 A FR 6920985A FR 6920985 A FR6920985 A FR 6920985A FR 2050731 A5 FR2050731 A5 FR 2050731A5
Authority
FR
France
Prior art keywords
distillation
isophorone
phorone
beta
column
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
FR6920985A
Other languages
French (fr)
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.)
ExxonMobil Technology and Engineering Co
Original Assignee
Exxon Research and Engineering Co
Esso Research and Engineering Co
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 Exxon Research and Engineering Co, Esso Research and Engineering Co filed Critical Exxon Research and Engineering Co
Priority to FR6920985A priority Critical patent/FR2050731A5/en
Application granted granted Critical
Publication of FR2050731A5 publication Critical patent/FR2050731A5/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/78—Separation; Purification; Stabilisation; Use of additives
    • C07C45/81—Separation; Purification; Stabilisation; Use of additives by change in the physical state, e.g. crystallisation
    • C07C45/82—Separation; Purification; Stabilisation; Use of additives by change in the physical state, e.g. crystallisation by distillation
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/61—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups
    • C07C45/67—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/78—Separation; Purification; Stabilisation; Use of additives
    • C07C45/85—Separation; Purification; Stabilisation; Use of additives by treatment giving rise to a chemical modification

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Isophorons is purified by subjecting a stream containing isophorone, beta-isophorone, phorone, beta-phorone, lower boiling impurities and higher boiling impurities to distillation in a first distillation column and separating the higher boiling impurities as distillation sump and recovering from the head of the column a product consisting of isophorone, beta-isophorone, phorone, beta-phorone and lower boiling impurities which is distilled in a 2nd column, essentially pure isophorone being withdrawn at a point in the 2nd column below the product imput point.
FR6920985A 1969-06-23 1969-06-23 Purification of iiisophorone by 2-stage - distillation Expired FR2050731A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR6920985A FR2050731A5 (en) 1969-06-23 1969-06-23 Purification of iiisophorone by 2-stage - distillation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6920985A FR2050731A5 (en) 1969-06-23 1969-06-23 Purification of iiisophorone by 2-stage - distillation

Publications (1)

Publication Number Publication Date
FR2050731A5 true FR2050731A5 (en) 1971-04-02

Family

ID=9036222

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6920985A Expired FR2050731A5 (en) 1969-06-23 1969-06-23 Purification of iiisophorone by 2-stage - distillation

Country Status (1)

Country Link
FR (1) FR2050731A5 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2416211A1 (en) * 1978-02-07 1979-08-31 Ugine Kuhlmann Stable, colourless isophorone prodn. - by treating crude synthesis mixt. with ion exchanger, neutralising, extracting salts then distilling
EP0003922A1 (en) * 1978-02-07 1979-09-05 P C U K Produits Chimiques Ugine Kuhlmann Method for obtaining uncoloured and stable isophorone

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2416211A1 (en) * 1978-02-07 1979-08-31 Ugine Kuhlmann Stable, colourless isophorone prodn. - by treating crude synthesis mixt. with ion exchanger, neutralising, extracting salts then distilling
EP0003922A1 (en) * 1978-02-07 1979-09-05 P C U K Produits Chimiques Ugine Kuhlmann Method for obtaining uncoloured and stable isophorone

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