NL7701223A - Thin film evaporator with rotor-mounted wiper blades - esp. of PTFE has all other internal surfaces enamelled - Google Patents

Thin film evaporator with rotor-mounted wiper blades - esp. of PTFE has all other internal surfaces enamelled

Info

Publication number
NL7701223A
NL7701223A NL7701223A NL7701223A NL7701223A NL 7701223 A NL7701223 A NL 7701223A NL 7701223 A NL7701223 A NL 7701223A NL 7701223 A NL7701223 A NL 7701223A NL 7701223 A NL7701223 A NL 7701223A
Authority
NL
Netherlands
Prior art keywords
ptfe
rotor
thin film
vessel
film evaporator
Prior art date
Application number
NL7701223A
Other languages
Dutch (nl)
Original Assignee
Pfaudler Werke Ag
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 Pfaudler Werke Ag filed Critical Pfaudler Werke Ag
Priority to NL7701223A priority Critical patent/NL7701223A/en
Publication of NL7701223A publication Critical patent/NL7701223A/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/22—Evaporating by bringing a thin layer of the liquid into contact with a heated surface
    • B01D1/222—In rotating vessels; vessels with movable parts
    • B01D1/223—In rotating vessels; vessels with movable parts containing a rotor
    • B01D1/225—In rotating vessels; vessels with movable parts containing a rotor with blades or scrapers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/30—Accessories for evaporators ; Constructional details thereof

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)

Abstract

A thin film evaporator consists of a (vertical) cylindrical vessel, the inner face of which acts as the heating surface and is swept by PTFE or similar wiper elements mounted on radial arms of a coaxially mounted rotor shaft. The inner wall face of the vessel and the rotor unit, except for the PTFE wiper elements are all enamelled in corrosion-resistant enamel. Pref. the rotor shaft if top-mounted only outside the vessel, in a hearing, while the lower end of the shaft is freely suspended. All parts with the exception of the wiper blades themselves are of corrosion-resistant material and there are no bearings inside the vessel itself to be subject to corrosion.
NL7701223A 1977-02-04 1977-02-04 Thin film evaporator with rotor-mounted wiper blades - esp. of PTFE has all other internal surfaces enamelled NL7701223A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL7701223A NL7701223A (en) 1977-02-04 1977-02-04 Thin film evaporator with rotor-mounted wiper blades - esp. of PTFE has all other internal surfaces enamelled

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7701223A NL7701223A (en) 1977-02-04 1977-02-04 Thin film evaporator with rotor-mounted wiper blades - esp. of PTFE has all other internal surfaces enamelled

Publications (1)

Publication Number Publication Date
NL7701223A true NL7701223A (en) 1978-08-08

Family

ID=19827925

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7701223A NL7701223A (en) 1977-02-04 1977-02-04 Thin film evaporator with rotor-mounted wiper blades - esp. of PTFE has all other internal surfaces enamelled

Country Status (1)

Country Link
NL (1) NL7701223A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999054381A2 (en) * 1998-04-21 1999-10-28 Bayer Aktiengesellschaft Methods for removing volatile components from polymer solutions

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999054381A2 (en) * 1998-04-21 1999-10-28 Bayer Aktiengesellschaft Methods for removing volatile components from polymer solutions
WO1999054381A3 (en) * 1998-04-21 2000-01-13 Bayer Ag Methods for removing volatile components from polymer solutions
US6485607B1 (en) 1998-04-21 2002-11-26 Bayer Aktiengesellschaft Methods for removing volatile components from polymer solutions

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Legal Events

Date Code Title Description
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
A85 Still pending on 85-01-01
BV The patent application has lapsed