GB988084A - Condenser - Google Patents

Condenser

Info

Publication number
GB988084A
GB988084A GB4407159A GB4407159A GB988084A GB 988084 A GB988084 A GB 988084A GB 4407159 A GB4407159 A GB 4407159A GB 4407159 A GB4407159 A GB 4407159A GB 988084 A GB988084 A GB 988084A
Authority
GB
United Kingdom
Prior art keywords
bed
phthalic anhydride
comminuted
inlet
hot gases
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
GB4407159A
Inventor
Welsley Donald Betts
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.)
COAL TAR RES ASS
Original Assignee
COAL TAR RES ASS
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 COAL TAR RES ASS filed Critical COAL TAR RES ASS
Priority to GB4407159A priority Critical patent/GB988084A/en
Publication of GB988084A publication Critical patent/GB988084A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D7/00—Sublimation
    • B01D7/02—Crystallisation directly from the vapour phase
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/54—Preparation of carboxylic acid anhydrides
    • C07C51/573—Separation; Purification; Stabilisation; Use of additives

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Furan Compounds (AREA)

Abstract

A process for recovering phthalic anhydride from hot gases comprises passing the latter into a fluidized bed of comminuted phthalic anhydride, the temperature of the gases and of the bed being such that phthalic anhydride condenses on to the comminuted material. Specification 986,110 is referred to.ALSO:A condenser for recovering phthalic anhydride from hot gases comprises a vessel containing a bed of comminuted phthalic anhydride, an inlet for the hot gases arranged to maintain the bed in fluidized condition and means for withdrawing heat from the bed, in particular a cooling coil at least partially immersed therein. Preferably the bed is furnished with a secondary air inlet below the hot gas inlet; the secondary inlet may be located in a lowermost portion of the bed of reduced diameter and may be associated with means for withdrawing heavier articles which have fallen past it. Specification 986,110 is referred to.
GB4407159A 1959-12-29 1959-12-29 Condenser Expired GB988084A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4407159A GB988084A (en) 1959-12-29 1959-12-29 Condenser

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4407159A GB988084A (en) 1959-12-29 1959-12-29 Condenser

Publications (1)

Publication Number Publication Date
GB988084A true GB988084A (en) 1965-04-07

Family

ID=10431622

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4407159A Expired GB988084A (en) 1959-12-29 1959-12-29 Condenser

Country Status (1)

Country Link
GB (1) GB988084A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999048583A1 (en) * 1998-03-26 1999-09-30 Metallgesellschaft Aktiengesellschaft Method for separating vaporous phthalic acid anhydride from a gas stream

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999048583A1 (en) * 1998-03-26 1999-09-30 Metallgesellschaft Aktiengesellschaft Method for separating vaporous phthalic acid anhydride from a gas stream
US6368389B1 (en) 1998-03-26 2002-04-09 Metallgesellschaft Aktiengesellschaft Method for separating vaporous phthalic acid anhydride from a gas stream

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