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 (fr)
BE (1) BE826553A (fr)
BR (1) BR7501394A (fr)
DD (1) DD117669A5 (fr)
DE (1) DE2509182A1 (fr)
ES (1) ES435492A1 (fr)
FR (1) FR2263994A1 (fr)
GB (1) GB1493489A (fr)
IT (1) IT1029989B (fr)
NL (1) NL7502812A (fr)
TR (1) TR18478A (fr)

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

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