GB1013619A - Improved process for recovery of adipic acid precursors - Google Patents

Improved process for recovery of adipic acid precursors

Info

Publication number
GB1013619A
GB1013619A GB36397/63A GB3639763A GB1013619A GB 1013619 A GB1013619 A GB 1013619A GB 36397/63 A GB36397/63 A GB 36397/63A GB 3639763 A GB3639763 A GB 3639763A GB 1013619 A GB1013619 A GB 1013619A
Authority
GB
United Kingdom
Prior art keywords
adipic acid
phase
cyclohexane
oxidation
oil
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
GB36397/63A
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.)
Monsanto Co
Original Assignee
Monsanto 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 Monsanto Co filed Critical Monsanto Co
Publication of GB1013619A publication Critical patent/GB1013619A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/16—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation
    • C07C51/31—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation of cyclic compounds with ring-splitting
    • C07C51/313—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation of cyclic compounds with ring-splitting with molecular oxygen
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
    • C07C29/48—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by oxidation reactions with formation of hydroxy groups
    • C07C29/50—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by oxidation reactions with formation of hydroxy groups with molecular oxygen only
    • 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
    • C07C45/27—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation
    • C07C45/32—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with molecular oxygen
    • C07C45/33—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with molecular oxygen of CHx-moieties
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/16—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation
    • C07C51/31—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation of cyclic compounds with ring-splitting
    • C07C51/316—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation of cyclic compounds with ring-splitting with oxides of nitrogen or nitrogen-containing mineral acids
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2601/00—Systems containing only non-condensed rings
    • C07C2601/12—Systems containing only non-condensed rings with a six-membered ring
    • C07C2601/14—The ring being saturated

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Braking Arrangements (AREA)

Abstract

In a process for the preparation of adipic acid by the oxidation of cyclohexane in the liquid phase with molecular oxygen to primary oxidation products comprising chiefly cyclohexanone and cyclohexanol, followed by oxidation of these products to adipic acid, the adipic acid precursor products are obtained by (a) injecting water into the effluent from a liquid phase cyclohexane oxidation step; (b) separating the resulting mixture into a first oil phase and first aqueous phase; (c) removing substantially all the unoxidized cyclohexane from the first oil phase; (d) subjecting the resulting substantially cyclohexane free oil phase to evaporating conditions in the top portion of a standard rectification column; (e) subjecting the first aqueous phase to evaporating conditions in the bottom portion of said rectification column for a sufficient time to cause substantially all the water from the first aqueous phase to go overhead in the distillate obtained from said distillation with substantially all of said cyclohexane free first oil phase; (f) separating the resulting distillate mixture into a second oil and second aqueous phase; and (g) recovering the distillate second oil phase and combining it with selectively precipitated adipic acid precursors from the bottoms of said distillation, whereby an adipic acid precursor oil is obtained for use as the oxidizable feed. The subsequent oxidation is by nitric acid at between 130-190 DEG C. and a pressure between 50 and 150 pounds per square inch. The top and bottom distillation ranges are between 80 DEG and 120 DEG C. and 100 DEG and 140 DEG C. respectively. Specifications 1,013,617 and 1,013,618 are referred to.
GB36397/63A 1962-09-18 1963-09-16 Improved process for recovery of adipic acid precursors Expired GB1013619A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US22443562A 1962-09-18 1962-09-18

Publications (1)

Publication Number Publication Date
GB1013619A true GB1013619A (en) 1965-12-15

Family

ID=22840667

Family Applications (1)

Application Number Title Priority Date Filing Date
GB36397/63A Expired GB1013619A (en) 1962-09-18 1963-09-16 Improved process for recovery of adipic acid precursors

Country Status (10)

Country Link
JP (1) JPS5019533B1 (en)
BE (1) BE637535A (en)
CH (1) CH426762A (en)
DE (1) DE1468280A1 (en)
DK (1) DK114764B (en)
GB (1) GB1013619A (en)
LU (1) LU44452A1 (en)
NL (1) NL298067A (en)
NO (1) NO116848B (en)
SE (1) SE312332B (en)

Also Published As

Publication number Publication date
BE637535A (en)
DK114764B (en) 1969-08-04
LU44452A1 (en) 1964-03-17
NL298067A (en)
SE312332B (en) 1969-07-14
DE1468280A1 (en) 1969-01-02
NO116848B (en) 1969-06-02
JPS5019533B1 (en) 1975-07-08
CH426762A (en) 1966-12-31

Similar Documents

Publication Publication Date Title
GB1436279A (en) Process for preparing terephthalic acid by the oxidation of p-xylene
GB1353437A (en) Process for recovery of cyclohexanone
GB1357780A (en) Process for purification of acrylic acid
GB1498017A (en) Isophorone production using a potassium hydroxide catalys
GB1278180A (en) Process for isolating acrylic acid from aqueous crude acrylic acid
US3316302A (en) Preparation of cyclohexanol and cyclohexanone
GB1283619A (en) Process for purifying propylene oxide
GB1013619A (en) Improved process for recovery of adipic acid precursors
GB1528129A (en) Process for the production of isophorone
GB1147285A (en) Separation of products of cyclohexane oxidation
GB1004131A (en) Reclamation of succinic and/or glutaric acid from chemical process streams
EP0005291A1 (en) Process for the recovery of cyclohexanone oxime
GB1092629A (en) Separation of acetone from organic mixtures
US3449415A (en) Purification of formic acid and propionic acid
US2870203A (en) Chloroform extraction process for improving recovery of adipic acid
GB1187216A (en) Production of Adipic Acid
GB963359A (en) Chemical process for recovery of vanadium and copper catalysts
GB1214571A (en) Process for the preparation of isoprene
SU396315A1 (en) METHOD OF OBTAINING ADIPIC ACID
GB1123421A (en) Chemical process
GB1059991A (en) Improvements in or relating to the continuous production of trimethyl adipodinitrile
GB877622A (en) Isopropanol purification process
SU63492A1 (en) The method of obtaining dibasic acids of fatty series to nitrocycloparaffins
GB938848A (en) Improvements in or relating to the recovery of cyclohexane
GB776803A (en) Liquid phase oxidation of cyclohexane