NL8102810A - Werkwijze voor het dehydrateren van maleinezuur tot maleinezuuranhydride en de hierbij toe te passen in- richting. - Google Patents

Werkwijze voor het dehydrateren van maleinezuur tot maleinezuuranhydride en de hierbij toe te passen in- richting. Download PDF

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Publication number
NL8102810A
NL8102810A NL8102810A NL8102810A NL8102810A NL 8102810 A NL8102810 A NL 8102810A NL 8102810 A NL8102810 A NL 8102810A NL 8102810 A NL8102810 A NL 8102810A NL 8102810 A NL8102810 A NL 8102810A
Authority
NL
Netherlands
Prior art keywords
evaporator
maleic acid
discharge pipe
dehydration
concentrated
Prior art date
Application number
NL8102810A
Other languages
English (en)
Dutch (nl)
Original Assignee
Charbonnages Ste Chimique
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 Charbonnages Ste Chimique filed Critical Charbonnages Ste Chimique
Publication of NL8102810A publication Critical patent/NL8102810A/nl

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D3/00Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/14Fractional distillation or use of a fractionation or rectification column
    • B01D3/26Fractionating columns in which vapour and liquid flow past each other, or in which the fluid is sprayed into the vapour, or in which a two-phase mixture is passed in one direction
    • B01D3/28Fractionating columns with surface contact and vertical guides, e.g. film action
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D1/00Evaporating
    • B01D1/06Evaporators with vertical tubes
    • B01D1/065Evaporators with vertical tubes by film evaporating
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/54Preparation of carboxylic acid anhydrides
    • C07C51/56Preparation of carboxylic acid anhydrides from organic acids, their salts, their esters or their halides, e.g. by carboxylation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
NL8102810A 1980-06-13 1981-06-11 Werkwijze voor het dehydrateren van maleinezuur tot maleinezuuranhydride en de hierbij toe te passen in- richting. NL8102810A (nl)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8013117 1980-06-13
FR8013117A FR2484417A1 (fr) 1980-06-13 1980-06-13 Procede continu de deshydratation de l'acide maleique et installation pour sa mise en oeuvre

Publications (1)

Publication Number Publication Date
NL8102810A true NL8102810A (nl) 1982-01-04

Family

ID=9243034

Family Applications (1)

Application Number Title Priority Date Filing Date
NL8102810A NL8102810A (nl) 1980-06-13 1981-06-11 Werkwijze voor het dehydrateren van maleinezuur tot maleinezuuranhydride en de hierbij toe te passen in- richting.

Country Status (8)

Country Link
US (2) US4414398A (enExample)
BE (1) BE888665A (enExample)
CA (1) CA1207782A (enExample)
DE (1) DE3120749A1 (enExample)
FR (1) FR2484417A1 (enExample)
GB (1) GB2078121B (enExample)
IT (1) IT1136621B (enExample)
NL (1) NL8102810A (enExample)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2502943A1 (en) 2006-03-30 2012-09-26 Exotech Bio Solutions Ltd. Styrene-maleic anhydride copolymers for bioapplications and their preparation
CN101973969A (zh) * 2010-10-18 2011-02-16 江苏超跃化学有限公司 提高苯氧化反应制取顺丁烯二酸酐中酸水浓度的方法
PL3970676T3 (pl) 2020-09-22 2022-10-17 Ontex Bv Wyrób chłonny z ulepszonym wielowarstwowym rdzeniem
EP4190288B1 (en) 2021-12-03 2024-10-30 Ontex BV Environmentally-friendly absorbent article and process of making
EP4190287B1 (en) 2021-12-03 2024-10-30 Ontex BV Environmentally-friendly absorbent article and process of making
EP4197504B1 (en) 2021-12-14 2024-01-03 Ontex BV Re-usable shell and disposable insert with wetness indicator
EP4197506A1 (en) 2021-12-14 2023-06-21 Ontex BV Re-usable shell and disposable insert with insert positioning system
EP4197505B1 (en) 2021-12-14 2025-07-16 Ontex BV Disposable insert and re-usable shell with stiffening zone
US20250345216A1 (en) 2022-04-29 2025-11-13 Ontex Bv Re-usable shell and disposable insert with improved fastening means
EP4268777A1 (en) 2022-04-29 2023-11-01 Ontex BV Re-usable shell and disposable insert with improved fastening means
ES2991972T3 (es) 2022-04-29 2024-12-05 Ontex Bv Cubierta reutilizable e inserto desechable doblado
EP4279047A1 (en) 2022-05-17 2023-11-22 Ontex BV Environmentally-friendly absorbent article with fastening system

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1043070A (fr) * 1950-06-06 1953-11-05 Apv Co Ltd Perfectionnements à la séparation entre des matières facilement volatiles et des matières relativement non volatiles
GB737391A (en) * 1951-09-21 1955-09-28 American Cyanamid Co Improvements relating to the production of maleic anhydride
NL296813A (enExample) * 1962-08-20
US3203466A (en) * 1963-05-02 1965-08-31 Blaw Knox Co Apparatus for concentrating liquids
US3265115A (en) * 1964-06-01 1966-08-09 Chicago Bridge & Iron Co Vertical cylindrical film evaporator with self-rotatable wiper
US3356125A (en) * 1964-12-02 1967-12-05 W L Badger Associates Inc Feeding and liquid by-passing method for falling film, multiple effect evaporators
GB1128613A (en) * 1965-03-15 1968-09-25 British Oxygen Co Ltd Flow regulating device
US3450603A (en) * 1967-03-10 1969-06-17 Combustion Eng Method of and means for reconcentrating liquid desiccant
FR1524319A (fr) * 1967-03-30 1968-05-10 Houilleres Bassin Du Nord Procédé de déshydratation de l'acide maléique en anhydride
DE1928207A1 (de) * 1969-06-03 1970-12-17 Bettermann Dr Dieter Verfahren zur kontinuierlichen Herstellung von Maleinsaeureanhydrid aus waessrigen Maleinsaeureloesungen
BE756951A (fr) * 1969-10-01 1971-04-01 Basf Ag Procede perfectionne de preparation de l'anhydride maleique
FR2189363B1 (enExample) * 1972-06-21 1974-10-25 Rhone Progil
GB1424747A (en) * 1973-08-28 1976-02-11 Ucb Sa Method and apparatus for the continuous dehydration of maleic acid
CA1088021A (en) * 1977-01-18 1980-10-21 Robert J. Coker Modified process for resin manufacturing using a continuous separate distillation column

Also Published As

Publication number Publication date
FR2484417B1 (enExample) 1983-07-08
BE888665A (fr) 1981-08-28
US4659433A (en) 1987-04-21
GB2078121A (en) 1982-01-06
IT1136621B (it) 1986-09-03
IT8121850A0 (it) 1981-05-20
DE3120749A1 (de) 1982-02-11
US4414398A (en) 1983-11-08
CA1207782A (fr) 1986-07-15
FR2484417A1 (fr) 1981-12-18
GB2078121B (en) 1984-04-18

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Legal Events

Date Code Title Description
A85 Still pending on 85-01-01
BA A request for search or an international-type search has been filed
BB A search report has been drawn up
BC A request for examination has been filed
BV The patent application has lapsed