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NL6909998A - Purification of iiisophorone by 2-stage - distillation - Google Patents

Purification of iiisophorone by 2-stage - distillation

Info

Publication number
NL6909998A
NL6909998A NL6909998A NL6909998A NL6909998A NL 6909998 A NL6909998 A NL 6909998A NL 6909998 A NL6909998 A NL 6909998A NL 6909998 A NL6909998 A NL 6909998A NL 6909998 A NL6909998 A NL 6909998A
Authority
NL
Netherlands
Prior art keywords
distillation
isophorone
phorone
beta
column
Prior art date
Application number
NL6909998A
Other versions
NL162054B (en
NL162054C (en
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 filed Critical
Priority to NL6909998A priority Critical patent/NL162054C/en
Publication of NL6909998A publication Critical patent/NL6909998A/en
Publication of NL162054B publication Critical patent/NL162054B/en
Application granted granted Critical
Publication of NL162054C publication Critical patent/NL162054C/en

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)
  • General Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (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.
NL6909998A 1969-06-30 1969-06-30 METHOD FOR WINNING PURE ISOFORON BY DISTILLATION OF RAW ISOFORON. NL162054C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL6909998A NL162054C (en) 1969-06-30 1969-06-30 METHOD FOR WINNING PURE ISOFORON BY DISTILLATION OF RAW ISOFORON.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6909998A NL162054C (en) 1969-06-30 1969-06-30 METHOD FOR WINNING PURE ISOFORON BY DISTILLATION OF RAW ISOFORON.

Publications (3)

Publication Number Publication Date
NL6909998A true NL6909998A (en) 1971-01-04
NL162054B NL162054B (en) 1979-11-15
NL162054C NL162054C (en) 1980-04-15

Family

ID=19807345

Family Applications (1)

Application Number Title Priority Date Filing Date
NL6909998A NL162054C (en) 1969-06-30 1969-06-30 METHOD FOR WINNING PURE ISOFORON BY DISTILLATION OF RAW ISOFORON.

Country Status (1)

Country Link
NL (1) NL162054C (en)

Also Published As

Publication number Publication date
NL162054B (en) 1979-11-15
NL162054C (en) 1980-04-15

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Legal Events

Date Code Title Description
V4 Lapsed because of reaching the maxim lifetime of a patent