AT309970B - Method and device for the freeze-drying of solid substances in the form of a solution or suspension - Google Patents

Method and device for the freeze-drying of solid substances in the form of a solution or suspension

Info

Publication number
AT309970B
AT309970B AT639268A AT639268A AT309970B AT 309970 B AT309970 B AT 309970B AT 639268 A AT639268 A AT 639268A AT 639268 A AT639268 A AT 639268A AT 309970 B AT309970 B AT 309970B
Authority
AT
Austria
Prior art keywords
freeze
suspension
drying
solution
solid substances
Prior art date
Application number
AT639268A
Other languages
German (de)
Original Assignee
Nestle Sa
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 Nestle Sa filed Critical Nestle Sa
Application granted granted Critical
Publication of AT309970B publication Critical patent/AT309970B/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B5/00—Drying solid materials or objects by processes not involving the application of heat
    • F26B5/04—Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum
    • F26B5/06—Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum the process involving freezing
    • F26B5/065—Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum the process involving freezing the product to be freeze-dried being sprayed, dispersed or pulverised
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23F—COFFEE; TEA; THEIR SUBSTITUTES; MANUFACTURE, PREPARATION, OR INFUSION THEREOF
    • A23F5/00—Coffee; Coffee substitutes; Preparations thereof
    • A23F5/24—Extraction of coffee; Coffee extracts; Making instant coffee
    • A23F5/28—Drying or concentrating coffee extract
    • A23F5/32—Drying or concentrating coffee extract by lyophilisation
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23F—COFFEE; TEA; THEIR SUBSTITUTES; MANUFACTURE, PREPARATION, OR INFUSION THEREOF
    • A23F5/00—Coffee; Coffee substitutes; Preparations thereof
    • A23F5/24—Extraction of coffee; Coffee extracts; Making instant coffee
    • A23F5/28—Drying or concentrating coffee extract
    • A23F5/34—Drying or concentrating coffee extract by spraying into a gas stream
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D9/00—Crystallisation
    • B01D9/0004—Crystallisation cooling by heat exchange
    • B01D9/0009—Crystallisation cooling by heat exchange by direct heat exchange with added cooling fluid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D9/00—Crystallisation
    • B01D9/0018—Evaporation of components of the mixture to be separated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D9/00—Crystallisation
    • B01D9/0018—Evaporation of components of the mixture to be separated
    • B01D9/0027—Evaporation of components of the mixture to be separated by means of conveying fluid, e.g. spray-crystallisation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D9/00—Crystallisation
    • B01D9/0059—General arrangements of crystallisation plant, e.g. flow sheets

Landscapes

  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Food Science & Technology (AREA)
  • Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Tea And Coffee (AREA)
  • Freezing, Cooling And Drying Of Foods (AREA)
  • Drying Of Solid Materials (AREA)
AT639268A 1967-07-06 1968-07-03 Method and device for the freeze-drying of solid substances in the form of a solution or suspension AT309970B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH956967A CH469957A (en) 1967-07-06 1967-07-06 Process for preparing a substance in the dry state starting from a solution or suspension of this substance and apparatus for its implementation
CH1406867A CH486678A (en) 1967-07-06 1967-10-09 Process for preparing a substance in the dry state from a solution or suspension of this substance

Publications (1)

Publication Number Publication Date
AT309970B true AT309970B (en) 1973-09-10

Family

ID=25705004

Family Applications (1)

Application Number Title Priority Date Filing Date
AT639268A AT309970B (en) 1967-07-06 1968-07-03 Method and device for the freeze-drying of solid substances in the form of a solution or suspension

Country Status (8)

Country Link
AT (1) AT309970B (en)
BE (1) BE716239A (en)
CH (2) CH469957A (en)
DE (1) DE1778902B2 (en)
FR (1) FR1570776A (en)
GB (1) GB1186477A (en)
IE (1) IE32146B1 (en)
NL (1) NL6809515A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6935049B2 (en) * 2003-12-24 2005-08-30 Edward K. Alstat Method and apparatus for reclaiming effluent from a freeze-drying process, and uses for effluent
CN113462480B (en) * 2021-08-16 2024-03-08 西安鸿生新成生物科技有限公司 Atomizing distillation process for volatile components in plants
CN113803965A (en) * 2021-08-28 2021-12-17 绍兴沃莱食品机械有限公司 Be applied to many cold traps of freeze-drying equipment and spread water, ordinary pressure defrosting device

Also Published As

Publication number Publication date
DE1778902B2 (en) 1975-05-28
DE1778902A1 (en) 1972-02-17
IE32146L (en) 1969-01-06
NL6809515A (en) 1969-01-08
FR1570776A (en) 1969-06-13
CH469957A (en) 1969-03-15
CH486678A (en) 1970-02-28
BE716239A (en) 1968-12-09
IE32146B1 (en) 1973-05-02
GB1186477A (en) 1970-04-02

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Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee