GB1165299A - Process for Selective Crystallization by Direct Thermal Exchange - Google Patents

Process for Selective Crystallization by Direct Thermal Exchange

Info

Publication number
GB1165299A
GB1165299A GB3023768A GB3023768A GB1165299A GB 1165299 A GB1165299 A GB 1165299A GB 3023768 A GB3023768 A GB 3023768A GB 3023768 A GB3023768 A GB 3023768A GB 1165299 A GB1165299 A GB 1165299A
Authority
GB
United Kingdom
Prior art keywords
mixture
per cent
direct thermal
thermal exchange
selective crystallization
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
GB3023768A
Inventor
Regis Lafay
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.)
IFP Energies Nouvelles IFPEN
Original Assignee
IFP Energies Nouvelles IFPEN
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 IFP Energies Nouvelles IFPEN filed Critical IFP Energies Nouvelles IFPEN
Publication of GB1165299A publication Critical patent/GB1165299A/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
    • B01D9/0009—Crystallisation cooling by heat exchange by direct heat exchange with added cooling fluid
    • 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

Abstract

1,165,299. Crystallizing hydrocarbons. INSTITUT FRANCAIS DU PETROLE DES CARBURANTS ET LUBRIFIANTS. 25 June, 1968 [26 June, 1967], No. 30237/68. Heading C5E. Selective crystallization of a hydrocarbon from a mixture of hydrocarbons is carried out by direct thermal exchange using as cooling liquid a mixture of water, one or more mono-alcohols and one or more poly-alcohols. Particularly suitable is a mixture of 20-40 wt. per cent water, 15-50 wt. per cent methanol and 25-50 wt. per cent ethylene glycol. Countercurrent contact is preferred. Para-xylene may be crystallized from a xylene mixture optionally containing ethyl benzene.
GB3023768A 1967-06-26 1968-06-25 Process for Selective Crystallization by Direct Thermal Exchange Expired GB1165299A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR111961 1967-06-26

Publications (1)

Publication Number Publication Date
GB1165299A true GB1165299A (en) 1969-09-24

Family

ID=8633850

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3023768A Expired GB1165299A (en) 1967-06-26 1968-06-25 Process for Selective Crystallization by Direct Thermal Exchange

Country Status (6)

Country Link
BE (1) BE716932A (en)
DE (1) DE1768716A1 (en)
ES (1) ES355394A1 (en)
FR (1) FR1568747A (en)
GB (1) GB1165299A (en)
NL (1) NL6808969A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3758601A (en) * 1971-11-17 1973-09-11 R Wylie Three-phase organics separation process

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3758601A (en) * 1971-11-17 1973-09-11 R Wylie Three-phase organics separation process

Also Published As

Publication number Publication date
BE716932A (en) 1968-12-02
FR1568747A (en) 1969-05-30
ES355394A1 (en) 1969-11-16
NL6808969A (en) 1968-12-27
DE1768716A1 (en) 1971-11-18

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees