GB796479A - Durene recovery process - Google Patents

Durene recovery process

Info

Publication number
GB796479A
GB796479A GB39288/56A GB3928856A GB796479A GB 796479 A GB796479 A GB 796479A GB 39288/56 A GB39288/56 A GB 39288/56A GB 3928856 A GB3928856 A GB 3928856A GB 796479 A GB796479 A GB 796479A
Authority
GB
United Kingdom
Prior art keywords
centrifuge
durene
zone
cooled
filter cake
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
GB39288/56A
Inventor
Rufus Burnell Bennett
Reuben Fred Pfennig
Raymond Andrew Speed
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.)
ExxonMobil Technology and Engineering Co
Original Assignee
Exxon Research and Engineering Co
Esso Research and Engineering 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
Priority to US308305A priority Critical patent/US2776328A/en
Priority to FR1165977D priority patent/FR1165977A/en
Application filed by Exxon Research and Engineering Co, Esso Research and Engineering Co filed Critical Exxon Research and Engineering Co
Priority to GB39288/56A priority patent/GB796479A/en
Publication of GB796479A publication Critical patent/GB796479A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B01D9/0004—Crystallisation cooling by heat exchange
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/14—Arrangements for controlling delivery; Arrangements for controlling the spray area for supplying a selected one of a plurality of liquids or other fluent materials or several in selected proportions to a spray apparatus, e.g. to a single spray outlet
    • B05B12/1418—Arrangements for controlling delivery; Arrangements for controlling the spray area for supplying a selected one of a plurality of liquids or other fluent materials or several in selected proportions to a spray apparatus, e.g. to a single spray outlet for supplying several liquids or other fluent materials in selected proportions to a single spray outlet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/24—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
    • B05B7/26—Apparatus in which liquids or other fluent materials from different sources are brought together before entering the discharge device
    • B05B7/28—Apparatus in which liquids or other fluent materials from different sources are brought together before entering the discharge device in which one liquid or other fluent material is fed or drawn through an orifice into a stream of a carrying fluid
    • B05B7/32—Apparatus in which liquids or other fluent materials from different sources are brought together before entering the discharge device in which one liquid or other fluent material is fed or drawn through an orifice into a stream of a carrying fluid the fed liquid or other fluent material being under pressure
    • 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)
  • Crystallography & Structural Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical Kinetics & Catalysis (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

<PICT:0796479/III/1> In a method for recovering durene a feed stock containing less than 15 per cent by weight of durene is cooled in a zone 14 (Fig. 1) to a temperature in the range -75 DEG F. to -100 DEG F. crystals are formed in a holding tank 16, and a filter cake containing 15 to 50 per cent by weight of durene separated in a centrifuge 18, the filter cake being melted in a tank 21 and the melt cooled in a zone 24 to 0 DEG F. to form crystals in a holding tank 26; a second filter cake containing 60 to 90 per cent durene is then separated in a centrifuge 28 and melted in a tank 30 and the melt cooled in a zone 32 to 100 DEG F. and a third filter cake separated in a centrifuge 34 as product. The filtrate from the first centrifuge 18 is discarded, the filtrate from the second centrifuge 28 is added to the feed stock entering the first chilling zone 14, and the filtrate from the third centrifuge 34 is added to the melt entering the second chilling zone 24. In a modified method the feed stock mixed with filtrate from the second centrifuge is cooled to 0 to -40 DEG F., seeded with a portion of slurry from the first holding tank and cooled to -75 DEG to -100 DEG F., and a portion of the filter cake from the second centrifuge is added to the slurry in the first holding tank; the melt entering the second chilling zone is also seeded with a portion of slurry from the second holding tank.
GB39288/56A 1952-09-08 1956-12-27 Durene recovery process Expired GB796479A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US308305A US2776328A (en) 1952-09-08 1952-09-08 Durene recovery process
FR1165977D FR1165977A (en) 1956-12-27 1956-12-14 Durene recovery process
GB39288/56A GB796479A (en) 1956-12-27 1956-12-27 Durene recovery process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB39288/56A GB796479A (en) 1956-12-27 1956-12-27 Durene recovery process

Publications (1)

Publication Number Publication Date
GB796479A true GB796479A (en) 1958-06-11

Family

ID=10408748

Family Applications (1)

Application Number Title Priority Date Filing Date
GB39288/56A Expired GB796479A (en) 1952-09-08 1956-12-27 Durene recovery process

Country Status (2)

Country Link
FR (1) FR1165977A (en)
GB (1) GB796479A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112876331A (en) * 2021-02-05 2021-06-01 苏州久泰集团有限公司 Production method of durene

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112876331A (en) * 2021-02-05 2021-06-01 苏州久泰集团有限公司 Production method of durene
CN112876331B (en) * 2021-02-05 2023-08-18 苏州久泰集团有限公司 Method for producing durene

Also Published As

Publication number Publication date
FR1165977A (en) 1958-10-31

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