US3233656A - Falling film evaporator of the rotating drum type - Google Patents

Falling film evaporator of the rotating drum type Download PDF

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Publication number
US3233656A
US3233656A US271383A US27138363A US3233656A US 3233656 A US3233656 A US 3233656A US 271383 A US271383 A US 271383A US 27138363 A US27138363 A US 27138363A US 3233656 A US3233656 A US 3233656A
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US
United States
Prior art keywords
roller
liquid
gap
chamber
blade
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 - Lifetime
Application number
US271383A
Other languages
English (en)
Inventor
Rodenacker Wolf
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.)
Bayer AG
Original Assignee
Bayer 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 Bayer AG filed Critical Bayer AG
Application granted granted Critical
Publication of US3233656A publication Critical patent/US3233656A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

Definitions

  • the means for collecting the liquid as it flows downward off of the roller and removing said liquid from the evaporator chamber includes a worm auger disposed coaxially below said roller and adjacent thereto, said worm auger having an inlet for collecting said liquid flowing down from said roller, and an outlet which communicates with an exit duct provided in said chamber, and said roller rotating means being provided for rotating said worm auger thereby causing it to transfer the liquid collected from the roller out of the evaporator chamber through said exit duct.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
US271383A 1962-04-18 1963-04-08 Falling film evaporator of the rotating drum type Expired - Lifetime US3233656A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF36583A DE1162809B (de) 1962-04-18 1962-04-18 Vakuum-Duennschichtverdampfer fuer viskose Fluessigkeiten

Publications (1)

Publication Number Publication Date
US3233656A true US3233656A (en) 1966-02-08

Family

ID=7096518

Family Applications (1)

Application Number Title Priority Date Filing Date
US271383A Expired - Lifetime US3233656A (en) 1962-04-18 1963-04-08 Falling film evaporator of the rotating drum type

Country Status (6)

Country Link
US (1) US3233656A (it)
BE (1) BE630994A (it)
CH (1) CH411785A (it)
DE (1) DE1162809B (it)
GB (1) GB979955A (it)
NL (1) NL291344A (it)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3554264A (en) * 1968-06-14 1971-01-12 Artisan Ind Thin-film evaporator having improved apparatus for removing viscous material
US3554263A (en) * 1968-04-09 1971-01-12 Chemetron Corp Discharge apparatus
US3797550A (en) * 1971-08-16 1974-03-19 Monsanto Co Wiped film devolatilizer construction
WO2003028843A1 (de) * 2001-09-27 2003-04-10 Gea Wiegand Gmbh Einrichtung zur fallstromverdampfung einer flüssigen substanz und anschliessenden kondensation des entstandenen brüdens
US10458066B2 (en) * 2014-08-01 2019-10-29 Organic Chemical Llc Process for the isolation of lignin from black liquor and modification of the lignin for plastic applications

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2032785A (en) * 1932-06-20 1936-03-03 Low Temperature Proc Company Method of and apparatus for disassociating the components of solutions and mixtures
US2804920A (en) * 1955-05-26 1957-09-03 Dow Chemical Co Devolatilizer for polymeric materials
US2811200A (en) * 1952-10-14 1957-10-29 Blaw Knox Co Method of drying viscous fluids which form films of varying thickness on revolving, heated drums
US2942656A (en) * 1956-11-28 1960-06-28 Bayer Ag Film evaporator
US3031030A (en) * 1957-01-22 1962-04-24 Bayer Ag Worm-device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2032785A (en) * 1932-06-20 1936-03-03 Low Temperature Proc Company Method of and apparatus for disassociating the components of solutions and mixtures
US2811200A (en) * 1952-10-14 1957-10-29 Blaw Knox Co Method of drying viscous fluids which form films of varying thickness on revolving, heated drums
US2804920A (en) * 1955-05-26 1957-09-03 Dow Chemical Co Devolatilizer for polymeric materials
US2942656A (en) * 1956-11-28 1960-06-28 Bayer Ag Film evaporator
US3031030A (en) * 1957-01-22 1962-04-24 Bayer Ag Worm-device

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3554263A (en) * 1968-04-09 1971-01-12 Chemetron Corp Discharge apparatus
US3554264A (en) * 1968-06-14 1971-01-12 Artisan Ind Thin-film evaporator having improved apparatus for removing viscous material
US3797550A (en) * 1971-08-16 1974-03-19 Monsanto Co Wiped film devolatilizer construction
WO2003028843A1 (de) * 2001-09-27 2003-04-10 Gea Wiegand Gmbh Einrichtung zur fallstromverdampfung einer flüssigen substanz und anschliessenden kondensation des entstandenen brüdens
US20040245084A1 (en) * 2001-09-27 2004-12-09 Daniel Bethge Device for downward flow evaporation of a liquid substance and subsequent condensation of the vapour formed
US7112262B2 (en) 2001-09-27 2006-09-26 Gea Wiegand Gmbh Device for downward flow evaporation of a liquid substance and subsequent condensation of the vapour formed
US10458066B2 (en) * 2014-08-01 2019-10-29 Organic Chemical Llc Process for the isolation of lignin from black liquor and modification of the lignin for plastic applications
US11136716B2 (en) * 2014-08-01 2021-10-05 Organic Chemical Llc Process for the isolation of lignin from black liquor and modification of the lignin for plastic applications

Also Published As

Publication number Publication date
CH411785A (de) 1966-04-30
BE630994A (it)
NL291344A (it)
GB979955A (en) 1965-01-06
DE1162809B (de) 1964-02-13

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