IT1029989B - Procedimento di cristallizzazione per la produzione di paraxilene di elevata purezza - Google Patents

Procedimento di cristallizzazione per la produzione di paraxilene di elevata purezza

Info

Publication number
IT1029989B
IT1029989B IT48512/75A IT4851275A IT1029989B IT 1029989 B IT1029989 B IT 1029989B IT 48512/75 A IT48512/75 A IT 48512/75A IT 4851275 A IT4851275 A IT 4851275A IT 1029989 B IT1029989 B IT 1029989B
Authority
IT
Italy
Prior art keywords
production
high purity
crystallization process
purity paraxylene
paraxylene
Prior art date
Application number
IT48512/75A
Other languages
English (en)
Italian (it)
Original Assignee
Standard Oil Co
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 Standard Oil Co filed Critical Standard Oil Co
Application granted granted Critical
Publication of IT1029989B publication Critical patent/IT1029989B/it

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D11/00—Solvent extraction
    • B01D11/02—Solvent extraction of solids
    • B01D11/0269—Solid material in other moving receptacles
    • B01D11/0273—Solid material in other moving receptacles in rotating drums
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D11/00—Solvent extraction
    • B01D11/02—Solvent extraction of solids
    • B01D11/028—Flow sheets
    • 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
    • B01D9/0013—Crystallisation cooling by heat exchange by indirect heat exchange
    • 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
    • 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)
  • Chemical Kinetics & Catalysis (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Organic Chemistry (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)
IT48512/75A 1974-03-11 1975-03-10 Procedimento di cristallizzazione per la produzione di paraxilene di elevata purezza IT1029989B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US44990974A 1974-03-11 1974-03-11

Publications (1)

Publication Number Publication Date
IT1029989B true IT1029989B (it) 1979-03-20

Family

ID=23785971

Family Applications (1)

Application Number Title Priority Date Filing Date
IT48512/75A IT1029989B (it) 1974-03-11 1975-03-10 Procedimento di cristallizzazione per la produzione di paraxilene di elevata purezza

Country Status (11)

Country Link
JP (1) JPS50126624A (de)
BE (1) BE826553A (de)
BR (1) BR7501394A (de)
DD (1) DD117669A5 (de)
DE (1) DE2509182A1 (de)
ES (1) ES435492A1 (de)
FR (1) FR2263994A1 (de)
GB (1) GB1493489A (de)
IT (1) IT1029989B (de)
NL (1) NL7502812A (de)
TR (1) TR18478A (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8200075A (nl) * 1982-01-11 1983-08-01 Tno Werkwijze voor het continu gedeeltelijk kristaliseren en het scheiden van een vloeibaar mengsel en een inrichting voor het uitvoeren van deze werkwijze.
US5498822A (en) * 1994-04-04 1996-03-12 Mobil Oil Corporation Single temperature stage crystallization of paraxylene
CN102372590B (zh) * 2010-08-23 2014-03-26 中国石油化工股份有限公司 由混合二甲苯生产对二甲苯的结晶方法
CN102372591B (zh) * 2010-08-23 2014-03-26 中国石油化工股份有限公司 生产对二甲苯的结晶方法
TW201240966A (en) * 2011-03-18 2012-10-16 Gtc Technology Us Llc Energy recovery from mother liquid in paraxylene crystallization process
CN103772127B (zh) * 2012-10-25 2015-07-08 中国石油化工股份有限公司 生产对二甲苯的方法
CN103880582B (zh) * 2012-12-19 2015-08-12 中国石油化工股份有限公司 对二甲苯多级结晶方法
CN112679305B (zh) * 2019-10-18 2022-10-11 中国石油化工股份有限公司 对二甲苯的生产方法

Also Published As

Publication number Publication date
BR7501394A (pt) 1975-12-09
BE826553A (fr) 1975-09-11
NL7502812A (nl) 1975-09-15
ES435492A1 (es) 1977-01-01
DE2509182A1 (de) 1975-10-02
DD117669A5 (de) 1976-01-20
JPS50126624A (de) 1975-10-04
FR2263994A1 (de) 1975-10-10
GB1493489A (en) 1977-11-30
TR18478A (tr) 1977-02-24

Similar Documents

Publication Publication Date Title
GB1407785A (en) Process for the production of anhydrous crystalline fructose
IT968292B (it) Procedimento di recupero per la produzione di cicloesanone di elevata purezza
IT1040204B (it) Processo per la produzione di butandiolo
IT1061273B (it) Procedimento per la produzione di polibutilentereftalato
IT1025896B (it) Procedimento migliorato per la fabbricazione di acido borico
CA1014175A (en) Process for the production of high purity meta-xylene
IT1041434B (it) Procedimento per la produzione di acido tereftalico
IT1029989B (it) Procedimento di cristallizzazione per la produzione di paraxilene di elevata purezza
IT1033255B (it) Procedimento per la produzione di l leucina
IT1068731B (it) Procedimento per la produzione di acido tereftalico
IT1058516B (it) Procedimento per la produzione di aromatici ad elevatissima purezza
IT1012814B (it) Processo per la produzione di alcheni
BE827325A (fr) Procede ameliore de preparation de composes azoiques de haute purete
IT1037316B (it) Processo per la produzione di acido acetico
IT1019661B (it) Processo per la purificazione di acido sorbico
IT1042093B (it) Processo per la produzione di acidi aminoarilsolfonici
IT1016832B (it) Procedimento per la produzione di esafluoroarseniato di litio ad al ta purezza
IT1034523B (it) Processo per la produzione di esametilenimina
IT1022964B (it) Processo per la produzione di gas di sintesi
IT1051931B (it) Procedimento per la produzione di acido clorocianurico
IT1026254B (it) Procedimento per la produzione di composti di cloruro polivinilico
YU36540B (en) Process for the crystallization of furctose
IT1027879B (it) Procedimento per la produzione di acido nitroco concentrato
IE39080B1 (en) Process for the manufacture of crystalline anhydrous ampicillin
IT1051921B (it) Procedimento per la produzione sensibilizzata di composti solfidrilici