ES2006067A6 - Procedimiento para la obtencion de p-xileno con una pureza de por lo menos 99,5%. - Google Patents

Procedimiento para la obtencion de p-xileno con una pureza de por lo menos 99,5%.

Info

Publication number
ES2006067A6
ES2006067A6 ES8800206A ES8800206A ES2006067A6 ES 2006067 A6 ES2006067 A6 ES 2006067A6 ES 8800206 A ES8800206 A ES 8800206A ES 8800206 A ES8800206 A ES 8800206A ES 2006067 A6 ES2006067 A6 ES 2006067A6
Authority
ES
Spain
Prior art keywords
xylol
purity
producing
liquid
pure
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
ES8800206A
Other languages
English (en)
Inventor
Gunter Puppel
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.)
Krupp Koppers GmbH
Original Assignee
Krupp Koppers GmbH
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
Priority claimed from DE3703646A external-priority patent/DE3703646C2/de
Application filed by Krupp Koppers GmbH filed Critical Krupp Koppers GmbH
Publication of ES2006067A6 publication Critical patent/ES2006067A6/es
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C62/00—Compounds having carboxyl groups bound to carbon atoms of rings other than six—membered aromatic rings and containing any of the groups OH, O—metal, —CHO, keto, ether, groups, groups, or groups
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D9/00—Crystallisation
    • B01D9/0004—Crystallisation cooling by heat exchange
    • B01D9/0009—Crystallisation cooling by heat exchange by direct heat exchange with added cooling fluid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D9/00—Crystallisation
    • B01D9/004—Fractional crystallisation; Fractionating or rectifying columns
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D9/00—Crystallisation
    • B01D9/0059—General arrangements of crystallisation plant, e.g. flow sheets
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C39/00—Compounds having at least one hydroxy or O-metal group bound to a carbon atom of a six-membered aromatic ring
    • C07C39/02—Compounds having at least one hydroxy or O-metal group bound to a carbon atom of a six-membered aromatic ring monocyclic with no unsaturation outside the aromatic ring
    • C07C39/06—Alkylated phenols
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C7/00—Purification; Separation; Use of additives
    • C07C7/14—Purification; Separation; Use of additives by crystallisation; Purification or separation of the crystals

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

PROCEDIMIENTO PARA LA OBTENCION DE P-XILENO CON UNA PUREZA DE POR LO MENOS 99,5%. ESTE PROCEDIMIENTO PARTE DE UN PRODUCTO PRECURSOR, CUYO CONTENIDO DE P-XILENO ES, POR LO MENOS, DE 99%. ESTE PRODUCTO PRECURSOR, EN EL ESTADO LIQUIDO, ES INTRODUCIDO EN UN LIQUIDO INERTE, PREFERIBLEMENTE AGUA, CUYA TEMPERATURA SE ENCUENTRA POR DEBAJO DEL PUNTO DE FUSION DEL P-XILENO PURO. LA FASE DE CRISTALES, QUE SE SEGREGA EN TAL CASO, ES SEPARADA DEL LIQUIDO Y FUNDIDA. LA MASA FUNDIDA CONSTA EN ESTE CASO DE P-XILENO CON UNA PUREZA DE POR LO MENOS 99,5%.
ES8800206A 1987-02-06 1988-01-26 Procedimiento para la obtencion de p-xileno con una pureza de por lo menos 99,5%. Expired ES2006067A6 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3703646A DE3703646C2 (de) 1987-02-06 1987-02-06 Verfahren zur Gewinnung von p-Xylol mit einer Reinheit von mindestens 99,5 %

Publications (1)

Publication Number Publication Date
ES2006067A6 true ES2006067A6 (es) 1989-04-01

Family

ID=6320395

Family Applications (1)

Application Number Title Priority Date Filing Date
ES8800206A Expired ES2006067A6 (es) 1987-02-06 1988-01-26 Procedimiento para la obtencion de p-xileno con una pureza de por lo menos 99,5%.

Country Status (6)

Country Link
KR (1) KR890700559A (es)
CN (1) CN1016685B (es)
ES (1) ES2006067A6 (es)
PT (1) PT86712B (es)
TR (1) TR23271A (es)
WO (1) WO1988005766A1 (es)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3839229A1 (de) * 1988-11-19 1990-05-23 Krupp Koppers Gmbh Verfahren zur gewinnung von p-xylol mit einer reinheit von mehr als 99,8 gew.-%
GB9303191D0 (en) * 1993-02-17 1993-03-31 Ici Plc Separation process
EG20284A (en) * 1993-02-17 1998-07-30 Ici Plc Separation process
CN103086846B (zh) * 2011-10-28 2015-08-19 中国石油化工股份有限公司 一种连续分离异丙基苯酚的装置及方法
CN104030880B (zh) * 2013-08-08 2016-07-06 中石化上海工程有限公司 直接冷却结晶分离对二甲苯的方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2769852A (en) * 1953-04-01 1956-11-06 California Research Corp Separation of xylene isomers by fractional crystallization
CA952424A (en) * 1970-11-17 1974-08-06 Roberto Lee Separation by crystallization in presence of water

Also Published As

Publication number Publication date
CN1016685B (zh) 1992-05-20
PT86712A (pt) 1988-03-01
TR23271A (tr) 1989-08-09
CN88100630A (zh) 1988-11-09
WO1988005766A1 (fr) 1988-08-11
PT86712B (pt) 1992-04-30
KR890700559A (ko) 1989-04-25

Similar Documents

Publication Publication Date Title
CA2115472A1 (en) Melt crystallization purification of lactides
HUT51684A (en) Process for increasing for monocristals of optically transparent metal-compound with high melting point
EP0313827A3 (en) Method and apparatus for purifying impure water
AU579525B2 (en) Polyarylene thioether of high crystallizing rate and a process for producing the same
ES2006067A6 (es) Procedimiento para la obtencion de p-xileno con una pureza de por lo menos 99,5%.
MY104640A (en) Apparatus for manufacturing silicon single crystals.
GB1503137A (en) Process for producing glass products
JPS57122905A (en) Crystallizer and method of forming crystal by crystallizer
ES8403438A1 (es) Procedimiento para separar 2,4-diisocianatotolueno tecnicamente puro o mezclas de isomeros con un contenido elevado de 2,4-diisocianatotolueno de las mezclas isomeras de 2,4- y 2,6-diisocianatotolueno.
AR244198A1 (es) Metodo para la produccion de 2, 2', 4, 4', 6, 6'-hexanitrostilbeno (hns) con pureza especificada a partir de un producto menos puro.
JPS5738398A (en) Quartz glass crucible for pulling up silicon single crystal
EP0137315A3 (en) Process and apparatus for the manufacture of high-purity alloys
MY102843A (en) Apparatus for manufacturing semiconductor single crystals
JPS55126597A (en) Single crystal growing method
JPS55126596A (en) Production of single crystal
FI872888L (fi) Anordning foer framstaellning av enkristall foer halvledare.
ZA859653B (en) Composite material consisting of a continuous thermoplastic sheath and of a core which is sensitive to the fusion temperature of the sheath and a process for producing it
YU176885A (en) Process for evaporation of additional materials from melted metal
JPS577895A (en) Manufacture of single crystal
JPS5756399A (en) Manufacture of single crystal of compound with high decomposition pressure
JPS6461392A (en) Production of gaas single crystal
GB1001504A (en) Process for the manufacture of purified calcium oxide
JPS55140792A (en) Manufacture of 3-5 group compound semiconductor single crystal
JPS5560092A (en) Production of single crystal
JPS5792593A (en) Melter in floating zone process

Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 20020401