GB872192A - Improvements in and relating to the production of thin layers of organic liquids in evaporators - Google Patents

Improvements in and relating to the production of thin layers of organic liquids in evaporators

Info

Publication number
GB872192A
GB872192A GB720260A GB720260A GB872192A GB 872192 A GB872192 A GB 872192A GB 720260 A GB720260 A GB 720260A GB 720260 A GB720260 A GB 720260A GB 872192 A GB872192 A GB 872192A
Authority
GB
United Kingdom
Prior art keywords
evaporators
evaporator surface
liquid
evaporated
fed
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
GB720260A
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.)
OC Oerlikon Balzers AG
Original Assignee
Balzers 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 Balzers AG filed Critical Balzers AG
Publication of GB872192A publication Critical patent/GB872192A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
    • H01J37/32—Gas-filled discharge tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/0011—Heating features
    • B01D1/0017—Use of electrical or wave energy
    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/10—Vacuum distillation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Analytical Chemistry (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)

Abstract

The production of thin layers of organic liquids on the evaporating surfaces of thinlayer evaporators is facilitated by exposing the surfaces to an electric gas discharge. Preferably the surfaces are exposed to the discharge before contact with the liquid to be evaporated, but whether applied before or during evaporation the gas discharge may be effected in the vapour of the liquid, e.g. as a glow discharge at reduced pressure, the evaporator surface serving as one of the gas discharge electrodes. Alternatively, a high voltage electrode may be insulated and passed through the evaporator wall, or the electrode may be arranged opposite the evaporator surface. Evaporators, illustrated diagramatically, to which the invention is applied are of the type in which liquid to be evaporated is fed as a jet or thrown by a rotor on to a stationary evaporator surface, or fed as a jet on to a rotating evaporator surface, or fed to an endless circulating belt which serves as the evaporator surface. Reference is also made to disc- or drum-shaped evaporators which revolve about a horizontal axis and dip into the liquid to be evaporated.
GB720260A 1959-03-05 1960-03-01 Improvements in and relating to the production of thin layers of organic liquids in evaporators Expired GB872192A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH7040659A CH366821A (en) 1959-03-05 1959-03-05 Process for improving the wetting of the evaporation surfaces of thin-film evaporators and thin-film evaporators for carrying out the process

Publications (1)

Publication Number Publication Date
GB872192A true GB872192A (en) 1961-07-05

Family

ID=4530242

Family Applications (1)

Application Number Title Priority Date Filing Date
GB720260A Expired GB872192A (en) 1959-03-05 1960-03-01 Improvements in and relating to the production of thin layers of organic liquids in evaporators

Country Status (5)

Country Link
BE (1) BE588132A (en)
CH (1) CH366821A (en)
DE (1) DE1080971B (en)
GB (1) GB872192A (en)
NL (2) NL248935A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3170852A (en) * 1962-06-22 1965-02-23 Clyde S Barnhart Proximity surface still
US5151546A (en) * 1988-07-19 1992-09-29 Hoechst Celanese Corporation Process for the production of 4-acetoxystyrene, its polymers and hydrolysis products
US5245074A (en) * 1988-07-19 1993-09-14 Shah Bakulesh N Process for the production of 4-acetoxystyrene, its polymers and hydrolysis products
US5274175A (en) * 1988-07-19 1993-12-28 Hoechst Celanese Corporation Process for the preparation of 4-acetoxyphenylmethyl carbinol
US5274173A (en) * 1988-07-19 1993-12-28 Hoechst Celanese Corporation Process for the production of poly(4-acetoxystyrene)
US5274174A (en) * 1988-07-19 1993-12-28 Hoechst Celanese Corporation Process for the production of poly(4-hydroxystyrene)
EP3873636A4 (en) * 2018-10-31 2022-06-22 Ecodyst, Inc. Falling film evaporator system and methods

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3170852A (en) * 1962-06-22 1965-02-23 Clyde S Barnhart Proximity surface still
US5151546A (en) * 1988-07-19 1992-09-29 Hoechst Celanese Corporation Process for the production of 4-acetoxystyrene, its polymers and hydrolysis products
US5245074A (en) * 1988-07-19 1993-09-14 Shah Bakulesh N Process for the production of 4-acetoxystyrene, its polymers and hydrolysis products
US5274175A (en) * 1988-07-19 1993-12-28 Hoechst Celanese Corporation Process for the preparation of 4-acetoxyphenylmethyl carbinol
US5274173A (en) * 1988-07-19 1993-12-28 Hoechst Celanese Corporation Process for the production of poly(4-acetoxystyrene)
US5274174A (en) * 1988-07-19 1993-12-28 Hoechst Celanese Corporation Process for the production of poly(4-hydroxystyrene)
EP3873636A4 (en) * 2018-10-31 2022-06-22 Ecodyst, Inc. Falling film evaporator system and methods
US11623163B2 (en) 2018-10-31 2023-04-11 Ecodyst, Inc. Falling film evaporator system and methods

Also Published As

Publication number Publication date
BE588132A (en)
NL126065C (en)
DE1080971B (en) 1960-05-05
CH366821A (en) 1963-01-31
NL248935A (en)

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