GB1299078A - Distillation process - Google Patents

Distillation process

Info

Publication number
GB1299078A
GB1299078A GB2208469A GB2208469A GB1299078A GB 1299078 A GB1299078 A GB 1299078A GB 2208469 A GB2208469 A GB 2208469A GB 2208469 A GB2208469 A GB 2208469A GB 1299078 A GB1299078 A GB 1299078A
Authority
GB
United Kingdom
Prior art keywords
reaction mixture
temperature
reaction
water
acid
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
GB2208469A
Inventor
John Waller Neely
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
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 US830555*A priority Critical patent/US3519054A/en
Application filed by Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB2208469A priority patent/GB1299078A/en
Priority to US29654A priority patent/US3681434A/en
Priority to DE19702020551 priority patent/DE2020551B2/en
Priority to NL7006280A priority patent/NL7006280A/xx
Priority to FR7015731A priority patent/FR2040465A1/fr
Publication of GB1299078A publication Critical patent/GB1299078A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
    • B01J2/02—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by dividing the liquid material into drops, e.g. by spraying, and solidifying the drops
    • B01J2/04—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by dividing the liquid material into drops, e.g. by spraying, and solidifying the drops in a gaseous medium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/16—Evaporating by spraying
    • B01D1/18—Evaporating by spraying to obtain dry solids
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/08—Preparation of carboxylic acid esters by reacting carboxylic acids or symmetrical anhydrides with the hydroxy or O-metal group of organic compounds

Abstract

1299078 Esters IMPERIAL CHEMICAL INDUSTRIES Ltd 13 April 1970 [30 April 1969] 22084/69 Heading C2C Esters of orthophthalic acid are produced by heating the acid, or phthalic anhydride, with a C 4 to C 14 alkanol, removing water-vapour from the reaction mixture and, at least during the later stages of the reaction, withdrawing part of the reaction mixture and introducing it in the form of a spray of small droplets to the vapour space above the reaction mixture. The hourly circulation rate is preferably 4 to 10 times the volume of the reaction mixture. The liquid which is withdrawn may be heated to a temperature 50‹ C. higher than the temperature of the bulk of the reaction mixture. An example relates to the production of dioctyl phthalate by heating phthalic anhydride with excess iso-octanol and a catalytic amount of sulphuric acid in a lead-lined distillation pot enclosed by a steam jacket. Towards the end of the esterification, when the temperature is 145‹ C. and nearly all the reaction-water has been distilled off by azeotropic distillation with refluxing iso-octanol, the circulation pump is started and batch distillation is carried out to remove the last traces of water.
GB2208469A 1969-01-06 1969-04-30 Distillation process Expired GB1299078A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US830555*A US3519054A (en) 1969-01-06 1969-01-06 Process for producing a particulate product
GB2208469A GB1299078A (en) 1969-04-30 1969-04-30 Distillation process
US29654A US3681434A (en) 1969-01-06 1970-04-17 Batch distillation of phthalate esters with recycle and spraying
DE19702020551 DE2020551B2 (en) 1969-04-30 1970-04-27 Method and device for batch distillation of a liquid
NL7006280A NL7006280A (en) 1969-04-30 1970-04-29
FR7015731A FR2040465A1 (en) 1969-04-30 1970-04-29

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2208469A GB1299078A (en) 1969-04-30 1969-04-30 Distillation process

Publications (1)

Publication Number Publication Date
GB1299078A true GB1299078A (en) 1972-12-06

Family

ID=10173668

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2208469A Expired GB1299078A (en) 1969-01-06 1969-04-30 Distillation process

Country Status (4)

Country Link
DE (1) DE2020551B2 (en)
FR (1) FR2040465A1 (en)
GB (1) GB1299078A (en)
NL (1) NL7006280A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5324853A (en) * 1993-01-19 1994-06-28 Exxon Chemical Patents Inc. Process for the production of plasticizer and polyolesters

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5324853A (en) * 1993-01-19 1994-06-28 Exxon Chemical Patents Inc. Process for the production of plasticizer and polyolesters

Also Published As

Publication number Publication date
DE2020551A1 (en) 1970-11-05
NL7006280A (en) 1970-11-03
FR2040465A1 (en) 1971-01-22
DE2020551B2 (en) 1975-03-06

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Legal Events

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