IT1261700B - Procedimento per la separazione di miscugli di m- e p-diclorobenzene - Google Patents

Procedimento per la separazione di miscugli di m- e p-diclorobenzene

Info

Publication number
IT1261700B
IT1261700B ITRM930369A ITRM930369A IT1261700B IT 1261700 B IT1261700 B IT 1261700B IT RM930369 A ITRM930369 A IT RM930369A IT RM930369 A ITRM930369 A IT RM930369A IT 1261700 B IT1261700 B IT 1261700B
Authority
IT
Italy
Prior art keywords
dichlorobenzene
atoms
pentasil
mixtures
cations
Prior art date
Application number
ITRM930369A
Other languages
English (en)
Inventor
Ursula Pentling
Hans-Josef Buysch
Lothar Puppe
Paul Hanns-Ingolf
Original Assignee
Bayer 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 Bayer Ag filed Critical Bayer Ag
Publication of ITRM930369A0 publication Critical patent/ITRM930369A0/it
Publication of ITRM930369A1 publication Critical patent/ITRM930369A1/it
Application granted granted Critical
Publication of IT1261700B publication Critical patent/IT1261700B/it

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C17/00—Preparation of halogenated hydrocarbons
    • C07C17/38—Separation; Purification; Stabilisation; Use of additives
    • C07C17/389—Separation; Purification; Stabilisation; Use of additives by adsorption on solids

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Treatment Of Liquids With Adsorbents In General (AREA)

Abstract

Miscugli di m- e p-diclorobenzene possono venire separati mediante trattamento di tali miscugli nella fase liquida con una Pentasil-zeolite a 20 fino a 250°C, nel qual caso viene prelevato un filtrato arricchito in m-diclorobenzene e il p-diclorobenzene viene ottenuto mediante desorbimento della Pentasil-zeolite. Le Pentasil-zeoliti possono contenere come cationi scambiabili protoni, cationi del primo oppure del secondo gruppo principale del sistema periodico (Mendelejew), cationi dei metalli delle terre rare oppure un miscuglio di più di essi. Per la produzione della fase liquida viene impiegato insieme un solvente, il quale appartiene al gruppo degli idrocarburi saturi ciclici ocn 5 fino a 15 atomi di C, degli idrocarburi aromatici alchilsostituiti con 8 fino a 12 atomi di C e degli idrocarburi aromatici alogeno-sostituiti con 6 fino a 10 atomi di C e con 1 fino a 3 atomi di alogeno; i solventi etilbenzene, clorobenzene, p-xilene, p-C1-toluene e diclorobenzene sono esclusi. Può venire impiegato anche un miscuglio di più di questi solventi.
ITRM930369A 1992-06-09 1993-06-03 Procedimento per la separazione di miscugli di m- e p-diclorobenzene IT1261700B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4218841A DE4218841A1 (de) 1992-06-09 1992-06-09 Verfahren zur Trennung von Gemischen von m- und p-Dichlorbenzol

Publications (3)

Publication Number Publication Date
ITRM930369A0 ITRM930369A0 (it) 1993-06-03
ITRM930369A1 ITRM930369A1 (it) 1994-12-03
IT1261700B true IT1261700B (it) 1996-05-29

Family

ID=6460626

Family Applications (1)

Application Number Title Priority Date Filing Date
ITRM930369A IT1261700B (it) 1992-06-09 1993-06-03 Procedimento per la separazione di miscugli di m- e p-diclorobenzene

Country Status (5)

Country Link
US (1) US5386067A (it)
JP (1) JPH0656716A (it)
DE (1) DE4218841A1 (it)
FR (1) FR2691964B1 (it)
IT (1) IT1261700B (it)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4325484A1 (de) * 1993-07-29 1995-02-02 Bayer Ag Verfahren zur Trennung von Gemischen von m- und p-Dichlorbenzol
CN101891586B (zh) * 2010-08-19 2012-12-26 江苏隆昌化工有限公司 一种从固废氯化苯焦油中提取高纯度间二氯苯工艺

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2855940C2 (de) * 1978-12-23 1980-08-21 Bayer Ag, 5090 Leverkusen Verfahren zur Auftrennung von Dichlorbenzol enthaltenden Isomerengemischen unter Gewinnung von ortho-, meta- und/oder para-Dichlorbenzol
JPS59122433A (ja) * 1982-12-28 1984-07-14 Toray Ind Inc ３，５−キシレノ−ルの分離回収方法
JPS61268636A (ja) * 1985-05-23 1986-11-28 Toray Ind Inc ジクロルベンゼン異性体の分離方法
JPS62175433A (ja) * 1986-01-28 1987-08-01 Hodogaya Chem Co Ltd ジクロロベンゼン異性体の分離方法
JPS63196530A (ja) * 1987-02-10 1988-08-15 Hodogaya Chem Co Ltd ｍ−ジクロロベンゼンの選択的分離法
EP0334025B2 (en) * 1988-02-26 1995-12-20 Toray Industries, Inc. Process for the separation of halogenated benzene derivatives
US4996380A (en) * 1989-11-08 1991-02-26 Uop Process for extracting meta-dichlorobenzene from isomer mixtures with mixed alkali metal exchanged X zeolite adsorbents

Also Published As

Publication number Publication date
DE4218841A1 (de) 1993-12-16
US5386067A (en) 1995-01-31
FR2691964A1 (fr) 1993-12-10
FR2691964B1 (fr) 1995-01-06
ITRM930369A0 (it) 1993-06-03
JPH0656716A (ja) 1994-03-01
ITRM930369A1 (it) 1994-12-03

Similar Documents

Publication Publication Date Title
ES8603177A1 (es) Procedimiento para obtener un tocoferol a partir de materia-les que contienen tocoferol
DE3062414D1 (en) Gas adsorption agents especially useful for the separation of hydrogen from a gaseous phase
JPS51129279A (en) Polarizing analyzer
IL131394A0 (en) Chromatographic purification of chlorinated sucrose
AU4015789A (en) Solvent extraction process, applied in particular to solid materials and apparatus for implementing the same
EP0921109A4 (it)
Potts Jr Low‐Temperature Absorption Spectra of Benzene, Toluene, and Para‐Xylene in the Farther Ultraviolet Region
IT1261700B (it) Procedimento per la separazione di miscugli di m- e p-diclorobenzene
NO162230C (no) Fremgangsmaate ved separasjon av en hydrocarbonblanding i dampfase ved adsorpsjon.
JPS5248593A (en) Method for removal and recovery of nox
DE3060170D1 (en) Process for obtaining a conjugated diolefin from a c 4 or c 5 hydrocarbon mixture
EP0001675A3 (en) Process for increasing fuel yield of coal liquefaction
BR9103401A (pt) Processo para produzir um adsorvente,adsorvente contendo carbono e processo para a remocao de impurezas aromaticas de um liquido
ES2030379T1 (es) Procedimiento de recuperacion del anhidrido maleico de mezclas gaseosas.
ES8402868A1 (es) "procedimiento criogenico para la remocion de gases acidicos de mezclas de gases que los contengan".
ES2019439B3 (es) Proceso de separacion de series aromaticas puras
JPS5262307A (en) Removing of acidic gas from mixed gas
ES8406402A1 (es) Procedimiento para la separacion de mezclas de hidrocarburos aromaticos.
SE7611274L (sv) Forfarande for att avlegsna svavelvete fran gas
JPS52111888A (en) Separation of liquid mixture
ITRM940507A1 (it) "procedimento per la separazione di miscele di m- e p- diclorobenzene"
ES8500205A1 (es) Procedimiento para la purificacion de n-metilpirrolidona.
JPS5231038A (en) Separation process of p-xylene by adsorption
ES2042201T3 (es) Metodo para la recuperacion de trimetilbencenos de mezclas que los contengan.
GB2009195A (en) Process of Purification of Silicone Materials

Legal Events

Date Code Title Description
0001 Granted