GB1321767A - Method for separation of cresol from cymene - Google Patents

Method for separation of cresol from cymene

Info

Publication number
GB1321767A
GB1321767A GB4750871A GB4750871A GB1321767A GB 1321767 A GB1321767 A GB 1321767A GB 4750871 A GB4750871 A GB 4750871A GB 4750871 A GB4750871 A GB 4750871A GB 1321767 A GB1321767 A GB 1321767A
Authority
GB
United Kingdom
Prior art keywords
cresol
cymene
alkali metal
aqueous
cresylate
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
GB4750871A
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.)
USS Engineers and Consultants Inc
Original Assignee
USS Engineers and Consultants Inc
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 USS Engineers and Consultants Inc filed Critical USS Engineers and Consultants Inc
Publication of GB1321767A publication Critical patent/GB1321767A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
    • C07C37/68—Purification; separation; Use of additives, e.g. for stabilisation
    • C07C37/86—Purification; separation; Use of additives, e.g. for stabilisation by treatment giving rise to a chemical modification
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
    • C07C37/64—Preparation of O-metal compounds with O-metal group bound to a carbon atom belonging to a six-membered aromatic ring
    • C07C37/66—Preparation of O-metal compounds with O-metal group bound to a carbon atom belonging to a six-membered aromatic ring by conversion of hydroxy groups to O-metal groups
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
    • C07C37/68—Purification; separation; Use of additives, e.g. for stabilisation
    • C07C37/685—Processes comprising at least two steps in series
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
    • C07C37/68—Purification; separation; Use of additives, e.g. for stabilisation
    • C07C37/70—Purification; separation; Use of additives, e.g. for stabilisation by physical treatment
    • C07C37/74—Purification; separation; Use of additives, e.g. for stabilisation by physical treatment by distillation

Landscapes

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

Abstract

1321767 Purifying cymene USS ENGINEERS & CONSULTANTS Inc 12 Oct 1971 [12 Oct 1970] 47508/71 Heading C5E Cresol is removed from a mixture of cymene and cresol by neutralizing the mixture with an aqueous alkali metal salt of cresol, decanting the organic phase, distilling to remove some of the cresol impurity, washing the distilled phase with an aqueous caustic solution, e.g. NaOH, to form an alkali metal salt of the remaining cresol and decanting the aqueous phase containing the alkali metal cresylate, at least part of this aqueous phase being recycled to the neutralization step. The cresol removed in the distillation is mainly m and p cresols whereas ocresylate forms about 75% of the cresylate in the recycle stream.
GB4750871A 1970-10-12 1971-10-12 Method for separation of cresol from cymene Expired GB1321767A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US7984770A 1970-10-12 1970-10-12

Publications (1)

Publication Number Publication Date
GB1321767A true GB1321767A (en) 1973-06-27

Family

ID=22153176

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4750871A Expired GB1321767A (en) 1970-10-12 1971-10-12 Method for separation of cresol from cymene

Country Status (4)

Country Link
CA (1) CA933184A (en)
DE (1) DE2150830A1 (en)
FR (1) FR2111043A5 (en)
GB (1) GB1321767A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3996111A (en) * 1975-10-28 1976-12-07 Labofina S.A. Recovering ethylphenol from decomposition products of diethylbenzene monohydroperoxide

Also Published As

Publication number Publication date
DE2150830A1 (en) 1972-04-13
FR2111043A5 (en) 1972-06-02
CA933184A (en) 1973-09-04

Similar Documents

Publication Publication Date Title
MY113810A (en) Process for the recovery of caprolactam from waste containing nylon
GB1412308A (en) Removal of mineral acid catalyst from cumene hydroperoxide cleavage products
US2964535A (en) Purification of nu-methyl pyrrolidone
GB1433715A (en) Process for the preparation of isoprene
GB1321767A (en) Method for separation of cresol from cymene
IT9020514A1 (en) PHENOL PURIFICATION PROCEDURE
CA1080222A (en) Purification of caprolactam
GB1479900A (en) Process for the separation and recovery of ammonia and acid gases
GB1508942A (en) Process for producing lactams
FR2440984A1 (en) PROCESS FOR THE TREATMENT OF A C4 HYDROCARBON CUT FOR THE RECOVERY OF BUTADIENE
GB1344965A (en) Process for the production of thymol
US4012451A (en) Process for the separation of 4,4'-dichlorodiphenylsulfone
GB1412645A (en) Purification and recovery of acetone
US2822393A (en) Recovery of cyclohexanone oxime
GB1410750A (en) Process for bisphenol production
US2776972A (en) Recovery of morpholine from aqueous solutions thereof
US3928471A (en) Method for the separation of 5-isopropyl-m-cresol
GB1354949A (en) Process for recovering pure maleic anhydride from crude maleic anhydride
US3996111A (en) Recovering ethylphenol from decomposition products of diethylbenzene monohydroperoxide
GB802054A (en) Improvements relating to the recovery of pure phenol from crude phenol
GB1479124A (en) Process for the recovery of phenol alpha methyl styrene and cumene from distillation residues
GB1394454A (en) Process for the production of high-purity phenol
GB1354950A (en) Process for recovering pure maleic anhydride from crude maleic anhydride
GB857113A (en) Manufacture of resorcinol
GB1101321A (en) Process for the manufacture of isoprene

Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees