IT965251B - Recupero di glicoli di alchilene - Google Patents

Recupero di glicoli di alchilene

Info

Publication number
IT965251B
IT965251B IT52602/72A IT5260272A IT965251B IT 965251 B IT965251 B IT 965251B IT 52602/72 A IT52602/72 A IT 52602/72A IT 5260272 A IT5260272 A IT 5260272A IT 965251 B IT965251 B IT 965251B
Authority
IT
Italy
Prior art keywords
recovery
alkylene glycols
glycols
alkylene
Prior art date
Application number
IT52602/72A
Other languages
English (en)
Original Assignee
Halcon Inernational 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 Halcon Inernational Inc filed Critical Halcon Inernational Inc
Application granted granted Critical
Publication of IT965251B publication Critical patent/IT965251B/it

Links

Classifications

    • 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
    • C07C29/74—Separation; Purification; Use of additives, e.g. for stabilisation
    • C07C29/76—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment
    • C07C29/80—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment by distillation
    • C07C29/82—Separation; Purification; Use of additives, e.g. for stabilisation by physical treatment by distillation by azeotropic distillation
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/48—Separation; Purification; Stabilisation; Use of additives
    • C07C67/52—Separation; Purification; Stabilisation; Use of additives by change in the physical state, e.g. crystallisation
    • C07C67/54—Separation; Purification; Stabilisation; Use of additives by change in the physical state, e.g. crystallisation by distillation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S203/00—Distillation: processes, separatory
    • Y10S203/06—Reactor-distillation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
IT52602/72A 1971-09-08 1972-09-07 Recupero di glicoli di alchilene IT965251B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00178587A US3809724A (en) 1971-09-08 1971-09-08 Preparation and recovery of alkylene glycols

Publications (1)

Publication Number Publication Date
IT965251B true IT965251B (it) 1974-01-31

Family

ID=22653133

Family Applications (1)

Application Number Title Priority Date Filing Date
IT52602/72A IT965251B (it) 1971-09-08 1972-09-07 Recupero di glicoli di alchilene

Country Status (8)

Country Link
US (1) US3809724A (it)
JP (1) JPS5217004B2 (it)
BE (1) BE788398A (it)
DE (1) DE2244229C3 (it)
FR (1) FR2152707B1 (it)
GB (1) GB1400782A (it)
IT (1) IT965251B (it)
NL (1) NL7211925A (it)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4121978A (en) * 1973-01-30 1978-10-24 Rhone-Progil Method of separating chlorinated aliphatic hydrocarbons from mixtures thereof, by extractive distillation
JPS5347086B2 (it) * 1973-10-12 1978-12-19
JPS5223120A (en) * 1975-08-15 1977-02-21 Kenichi Yamashita Automatic feeder of surface pallet for concrete mold
US4021311A (en) * 1975-09-12 1977-05-03 Halcon International, Inc. Recovery of alkylene glycols by azeotropic distillation with 1,2,3-trimethyl benzene
US4028195A (en) * 1975-09-12 1977-06-07 Halcon International, Inc. Recovery of alkylene glycols by distillation with aqueous organic acid
US4057471A (en) * 1975-09-12 1977-11-08 Halcon International, Inc. Recovery of alkylene glycols
US4045294A (en) * 1975-09-12 1977-08-30 Halcon International, Inc. Process for the recovery of alkylene glycols
CA1088021A (en) * 1977-01-18 1980-10-21 Robert J. Coker Modified process for resin manufacturing using a continuous separate distillation column
US4151048A (en) * 1977-06-06 1979-04-24 Halcon Research And Development Corporation Recovery of alkylene glycols by azeotropic distillation
US4187153A (en) * 1977-11-14 1980-02-05 Halcon Research & Development Corporation Production of alkylene glycols
JPS5564535A (en) * 1978-11-10 1980-05-15 Nisso Yuka Kogyo Kk Separation of mixture of ethylene glycol and ethylene carbonate
US4276126A (en) * 1979-11-30 1981-06-30 National Distillers And Chemical Corporation Separation of ethylene glycol from N-methylpyrrolidone
US4519875A (en) * 1984-05-09 1985-05-28 The Halcon Sd Group, Inc. Purification of ethylene glycol derived from ethylene carbonate
US4830712A (en) * 1987-09-29 1989-05-16 Union Carbide Corporation Process for refining ethylene glycol
US4975158A (en) * 1989-12-27 1990-12-04 Lloyd Bert Recovery of glycerine from polyols by azeotropic distillation
US4935102A (en) * 1989-12-27 1990-06-19 Lloyd Berg Separation of 2,3-butanediol from propylene glycol by azeotropic distillation
US4980033A (en) * 1990-09-04 1990-12-25 Lloyd Berg Recovery of triethylene glycol from triols by azeotropic distillation
EP0679624B1 (en) * 1994-04-18 1998-12-09 BASF Aktiengesellschaft Recovery of glycols from used glycol-containing technical fluids
US5425853A (en) * 1994-06-30 1995-06-20 Lloyd Berg Separation of propylene glycol from ethylene glycol by azeotropic distillation
WO2002098829A1 (en) * 2001-06-07 2002-12-12 Shell Internationale Research Maatschappij B.V. Separation method
WO2005032687A2 (en) * 2003-09-30 2005-04-14 Clark Arthur F Method for separating volatile components by dilutive distillation
US9145345B2 (en) * 2012-08-30 2015-09-29 Glyeco, Inc. Method and apparatus for processing glycol
CN110878007B (zh) * 2018-09-05 2023-04-28 长春美禾科技发展有限公司 一种非石油基乙二醇的精制方法
CN110963891B (zh) * 2018-09-29 2024-02-23 长春美禾科技发展有限公司 一种生物基丙二醇的精制方法
CN115141081B (zh) * 2022-07-18 2024-01-23 常州大学 基于共沸精馏方式分离共沸物乙二醇和乙二醇二乙酸酯的方法

Also Published As

Publication number Publication date
DE2244229A1 (de) 1973-03-15
BE788398A (fr) 1973-03-05
US3809724A (en) 1974-05-07
NL7211925A (it) 1973-03-12
GB1400782A (en) 1975-07-23
FR2152707B1 (it) 1977-12-30
FR2152707A1 (it) 1973-04-27
JPS4834810A (it) 1973-05-22
JPS5217004B2 (it) 1977-05-12
DE2244229B2 (de) 1978-10-19
DE2244229C3 (de) 1979-06-21

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