GB900457A - Improvements in the separation of liquid mixtures into their components - Google Patents

Improvements in the separation of liquid mixtures into their components

Info

Publication number
GB900457A
GB900457A GB4199358A GB4199358A GB900457A GB 900457 A GB900457 A GB 900457A GB 4199358 A GB4199358 A GB 4199358A GB 4199358 A GB4199358 A GB 4199358A GB 900457 A GB900457 A GB 900457A
Authority
GB
United Kingdom
Prior art keywords
column
evaporator
pipe
film
base
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
GB4199358A
Inventor
Guenter Poehler
Hellmut Giehne
Anton Wegerich
Otto Goehre
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.)
BASF SE
Original Assignee
BASF SE
Badische Anilin and Sodafabrik AG
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 BASF SE, Badische Anilin and Sodafabrik AG filed Critical BASF SE
Publication of GB900457A publication Critical patent/GB900457A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/14—Fractional distillation or use of a fractionation or rectification column
    • B01D3/143—Fractional distillation or use of a fractionation or rectification column by two or more of a fractionation, separation or rectification step
    • B01D3/148—Fractional distillation or use of a fractionation or rectification column by two or more of a fractionation, separation or rectification step in combination with at least one evaporator
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/06—Evaporators with vertical tubes
    • B01D1/065—Evaporators with vertical tubes by film evaporating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/14—Fractional distillation or use of a fractionation or rectification column
    • B01D3/32—Other features of fractionating columns ; Constructional details of fractionating columns not provided for in groups B01D3/16 - B01D3/30
    • B01D3/322—Reboiler specifications

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)

Abstract

<PICT:0900457/III/1> A liquid mixture, which contains material of low volatility, is separated into fractions by introducing it through pipe 1 into distillation column 3 the base of which is connected, by pipes 7 and 9, to a tubular evaporator 8; the base of the column and/or the tubular evaporator being also connected to a film-evaporator 12. Non-volatile material is withdrawn from the film-evaporator via pipe 13; and the volatile fraction is removed from the head of the column via dephlegmator 6 and pipe 10. In the embodiment shown, the vapour withdrawn from the film-evaporator via pipe 14 is condensed; and the condensate is introduced via pipe 22 into the column with fresh feed. The film-evaporator may be maintained at low pressure by a vacuum pump connected to pipe 19. The level of the liquid in the base of the column is maintained constant by valve 15. The operation is preferably conducted so that the bottoms product contains 40 to 60% of the low-volatile material. The process is suitable for fractionating the crude products of organic syntheses; and the heat of reaction may be used to preheat in heat-exchanger 2 the feed to the column. There are five examples, which relate to the production of cyclohexanol, dicyclohexylamine, dichlorbutane, adiponitrile, and beta-naphthol.
GB4199358A 1957-12-31 1958-12-30 Improvements in the separation of liquid mixtures into their components Expired GB900457A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB47311A DE1208291B (en) 1957-12-31 1957-12-31 Continuous process for the distillative purification of evaporable organic substances from difficult or non-evaporable substances

Publications (1)

Publication Number Publication Date
GB900457A true GB900457A (en) 1962-07-04

Family

ID=6968226

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4199358A Expired GB900457A (en) 1957-12-31 1958-12-30 Improvements in the separation of liquid mixtures into their components

Country Status (2)

Country Link
DE (1) DE1208291B (en)
GB (1) GB900457A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3428530A (en) * 1965-09-10 1969-02-18 Rhone Poulenc Sa Process for the purification of chlorosilanes by distillation and thin-film evaporation
US3476656A (en) * 1968-06-07 1969-11-04 Universal Oil Prod Co Fractional distillation and recovery of styrene containing sulfur with subsequent bottoms separation
US3515647A (en) * 1968-12-06 1970-06-02 Universal Oil Prod Co Method for distilling styrene and subjecting bottoms to thin film evaporation
KR100463499B1 (en) * 1999-10-07 2004-12-29 가부시키가이샤 닛폰 쇼쿠바이 Purification process for hydroxyalkyl (meth)acrylate
US7014736B2 (en) 2003-03-18 2006-03-21 Nippon Shokubai Co., Ltd. Apparatus and process for purification of acrylic acid family
WO2012048792A1 (en) * 2010-10-13 2012-04-19 Cognis Ip Management Gmbh Device and method for distilling temperature-sensitive substances
US8512447B2 (en) 2009-11-13 2013-08-20 Basf Se Method for purifying a chlorine supply
CN112827204A (en) * 2021-02-07 2021-05-25 吉林凯莱英医药化学有限公司 Vacuum purification device and purification system
CN115228120A (en) * 2022-08-17 2022-10-25 山东宏旭化学股份有限公司 Vacuum pump condensate recovery mechanism

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH598272A5 (en) * 1975-07-17 1978-04-28 Hoechst Ag
US4101414A (en) * 1975-09-02 1978-07-18 Unitech Chemical Inc. Rerefining of used motor oils
DE3338488A1 (en) * 1982-10-29 1984-05-03 Basf Ag, 6700 Ludwigshafen Process for recovering temperature-sensitive products by thermally mild distillation using a thin layer evaporator connected to a distillation column and an arrangement for carrying out the process
DE102004012904A1 (en) * 2004-03-17 2005-10-06 Bayer Chemicals Ag Process for the continuous decomposition of mixtures
EP4247508A1 (en) * 2020-11-23 2023-09-27 Covestro Deutschland AG Distillation unit and method for separating a liquid substance mixture into two to six liquid product flows with different compositions

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR523445A (en) * 1920-01-27 1921-08-18 Barbet Et Fils Et Cie E Improvements to evaporative devices with intensive circulation intended for all liquids
DE851635C (en) * 1950-03-02 1952-10-06 Heinrich Dr Ratte Method and device for heating distillation columns
DE902005C (en) * 1951-09-18 1954-01-18 Metallgesellschaft Ag Process for the recovery of the solvent by distillation from phenol-containing solutions
NL176744B (en) * 1952-04-24 Helopharm Petrik Co Kg PROCEDURE FOR THE PREPARATION OF PREPARATIONS ACTIVE AGAINST ORTHOSTATIC DYSREGULATION.
BE541274A (en) * 1954-09-20
US2795536A (en) * 1955-03-29 1957-06-11 California Research Corp Liquid control for a fractionating column

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3428530A (en) * 1965-09-10 1969-02-18 Rhone Poulenc Sa Process for the purification of chlorosilanes by distillation and thin-film evaporation
US3476656A (en) * 1968-06-07 1969-11-04 Universal Oil Prod Co Fractional distillation and recovery of styrene containing sulfur with subsequent bottoms separation
US3515647A (en) * 1968-12-06 1970-06-02 Universal Oil Prod Co Method for distilling styrene and subjecting bottoms to thin film evaporation
KR100463499B1 (en) * 1999-10-07 2004-12-29 가부시키가이샤 닛폰 쇼쿠바이 Purification process for hydroxyalkyl (meth)acrylate
US7014736B2 (en) 2003-03-18 2006-03-21 Nippon Shokubai Co., Ltd. Apparatus and process for purification of acrylic acid family
US8512447B2 (en) 2009-11-13 2013-08-20 Basf Se Method for purifying a chlorine supply
US8715467B2 (en) 2009-11-13 2014-05-06 Basf Se Method for purifying a chlorine supply
WO2012048792A1 (en) * 2010-10-13 2012-04-19 Cognis Ip Management Gmbh Device and method for distilling temperature-sensitive substances
AU2011316139B2 (en) * 2010-10-13 2016-07-07 Cognis Ip Management Gmbh Device and method for distilling temperature-sensitive substances
CN112827204A (en) * 2021-02-07 2021-05-25 吉林凯莱英医药化学有限公司 Vacuum purification device and purification system
CN115228120A (en) * 2022-08-17 2022-10-25 山东宏旭化学股份有限公司 Vacuum pump condensate recovery mechanism
CN115228120B (en) * 2022-08-17 2024-02-27 山东宏旭化学股份有限公司 Vacuum pump condensate recycling mechanism

Also Published As

Publication number Publication date
DE1208291B (en) 1966-01-05

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