UST896030I4 - Apparatus for the continuous transesteripication op aromatic dicarboxylic acids with diols - Google Patents

Apparatus for the continuous transesteripication op aromatic dicarboxylic acids with diols Download PDF

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Publication number
UST896030I4
UST896030I4 US896030DH UST896030I4 US T896030 I4 UST896030 I4 US T896030I4 US 896030D H US896030D H US 896030DH US T896030 I4 UST896030 I4 US T896030I4
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reactor
takes place
reaction takes
establishing
zone
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    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C69/00—Esters of carboxylic acids; Esters of carbonic or haloformic acids
    • C07C69/76—Esters of carboxylic acids having a carboxyl group bound to a carbon atom of a six-membered aromatic ring
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/03—Preparation of carboxylic acid esters by reacting an ester group with a hydroxy group
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/48—Separation; Purification; Stabilisation; Use of additives
    • C07C67/52—Separation; Purification; Stabilisation; Use of additives by change in the physical state, e.g. crystallisation
    • C07C67/54—Separation; Purification; Stabilisation; Use of additives by change in the physical state, e.g. crystallisation by distillation

Definitions

  • Apparatus for continuous transesterification of dialkyl esters of aromatic dicarboxylic acids with diols including an initial reactor establishing a stirring zone within which reaction takes place followed by an initial reactor arrangement including a heated second reactor estabilshing a tubular zone within which reaction takes place without back-mixing of the reaction materials and a third reactor establishing a stirring zone within which reaction takes place and separation of vaporous by-prodncts occurs, the
  • resulting reacted material entering at least one other reactor arrangement including a heated reactor establishing a tubular zone within which further reaction takes place without backmixing of the materials and the term perature of the materials is further increased and another reactor establishing a stirring zone within which still further reaction takes place and a separation of vaporous by-products occurs, each of the reactor zones adapted to be operated under different temperatures and each of the reactor arrangements and the initial reactor adapted to be operated under difierent pressures whereby the pressure and temperature conditions are modified depending on the reaction rates desired.

Abstract

APPARATUS FOR CONTINUOUS TRANSESTERIFICATION OF DIALKYL ESTERS OF AROMATIC DICARBOXYLIC ACIDS WITH DIOLS INCLUDING AN INITIAL REACTOR ESTABLISHING A STIRRING ZONE WITHIN WHICH REACTION TAKES PLACE FOLLOWED BY AN INITIAL REACTOR ARRANGEMENT INCLUDING A HEATED SECOND REACTOR ESTABLISHING A TUBULAR ZONE WITHIN WHICH REACTION TAKES PLACE WITHOUT BACK-MIXING OF THE REACTION MATERIALS AND A THIRD REACTOR ESTABLISHING A STIRRING ZONE WITHIN WHICH REACTION TAKES PLACE AND SEPARATION OF VAPOROUS BY-PRODUCTS OCCURS, THE RESULTING REACTED MATERIAL ENTERING AT LEAST ONE OTHER REACTOR ARRANGEMENT INCLUDING A HEATED REACTOR ESTABLISHINGING A TUBULAR ZONE WITHIN WHICH FURTHER REACTION TAKES PLACE WITHOUT BACKMIXING OF THE MATERIALS AND THE TEMPERATURE OF THE MATERIALS IS FURTHER INCREASED AND ANOTHER REACTOR ESTABLISHING A STIRRING ZONE WHITHIN WHICH STILL FURTHER REACTION TAKES PLACE AND A SEPARATION OF VAPOROUS BY-PRODUCTS OCCURS, EACH OF THE REACTOR ZONES ADAPTED TO BE OPERATED UNDER DIFFERENT TEMPERATURES AND EACH OF THE REACTOR ARRANGEMENTS AND THE INITIAL REACTOR ADAPTED TO BE OPERATED UNDER DIFFERENT PRESSURES WHEREBY THE PRESSURE AND TEMPERATURE CONDITIONS ARE MODIFIED DEPENDING ON THE REACTION RATES DESIRED.

Description

EFENSIVE ULlCATlON UNITED STATES PATENT OFFICE Published at the request of the applicant or owner in accordance with the Notice of Dec. 16, 1969, 869 O.G. 687. The abstracts of Defensive Publication applications are identified by distinctly numbered series and are arranged chronologically. The heading of each abstract indicates the number of pages of specification, including claims and sheets of drawings contained in the application as originally filed. The files of these applications are available to the public for inspection and reproduction may be purchased for 30 cents a sheet.
Defensive Publication applications have not been examined as to the merits of alleged invention. The Patent Ofiice makes no assertion as to the novelty of the disclosed subject matter.
PUBLISHED MARCH 14, 1972 896 O.Gr. 422
Apparatus for continuous transesterification of dialkyl esters of aromatic dicarboxylic acids with diols including an initial reactor establishing a stirring zone within which reaction takes place followed by an initial reactor arrangement including a heated second reactor estabilshing a tubular zone within which reaction takes place without back-mixing of the reaction materials and a third reactor establishing a stirring zone within which reaction takes place and separation of vaporous by-prodncts occurs, the
. resulting reacted material entering at least one other reactor arrangement including a heated reactor establishing a tubular zone within which further reaction takes place without backmixing of the materials and the term perature of the materials is further increased and another reactor establishing a stirring zone within which still further reaction takes place and a separation of vaporous by-products occurs, each of the reactor zones adapted to be operated under different temperatures and each of the reactor arrangements and the initial reactor adapted to be operated under difierent pressures whereby the pressure and temperature conditions are modified depending on the reaction rates desired.
March M, 1972 H. WESTERMANN ETAL T833 APPARATUS FOR THE CONTINUOUS TRANSESTERIFICATION OF AROMATIC DICARBOXYLIC ACIDS WITH DIOLS Filed March 8, 1971 HANS WESTERMANN WALTER MECKSTROTH HORST-DIETER BURES HANS ERNST ZOBEL JOACHIM BERGMANN INVENTORS ATTORNEY
US896030D 1970-03-18 1971-03-08 Apparatus for the continuous transesteripication op aromatic dicarboxylic acids with diols Pending UST896030I4 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702012807 DE2012807A1 (en) 1970-03-18 1970-03-18 Process and device for the continuous transesterification of dialkyl esters of aromatic dicarboxylic acids with diols

Publications (1)

Publication Number Publication Date
UST896030I4 true UST896030I4 (en) 1972-03-14

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ID=5765428

Family Applications (1)

Application Number Title Priority Date Filing Date
US896030D Pending UST896030I4 (en) 1970-03-18 1971-03-08 Apparatus for the continuous transesteripication op aromatic dicarboxylic acids with diols

Country Status (6)

Country Link
US (1) UST896030I4 (en)
BE (1) BE764486A (en)
DE (1) DE2012807A1 (en)
FR (1) FR2084465A5 (en)
GB (1) GB1334624A (en)
NL (1) NL7103434A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5728893A (en) * 1995-12-06 1998-03-17 Union Carbide Chemicals & Plastics Technology Corporation Process using multistaged reactors

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2514116C3 (en) * 1975-03-29 1983-03-17 Basf Ag, 6700 Ludwigshafen Process for the continuous production of linear, high molecular weight polybutylene terephthalates
CN111943872A (en) * 2019-05-17 2020-11-17 北京芯友工程技术有限公司 Continuous process and device for synthesizing high-ester exchange rate sodium bis (hydroxyethyl) isophthalate-5-sulfonate through catalytic reaction rectification

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5728893A (en) * 1995-12-06 1998-03-17 Union Carbide Chemicals & Plastics Technology Corporation Process using multistaged reactors

Also Published As

Publication number Publication date
BE764486A (en) 1971-08-16
DE2012807A1 (en) 1971-10-07
FR2084465A5 (en) 1971-12-17
NL7103434A (en) 1971-09-21
GB1334624A (en) 1973-10-24

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