ES2125652T3 - Procedimiento para la determinacion de la humedad residual durante la desecacion secundaria en un proceso de liofilizacion. - Google Patents

Procedimiento para la determinacion de la humedad residual durante la desecacion secundaria en un proceso de liofilizacion.

Info

Publication number
ES2125652T3
ES2125652T3 ES95929891T ES95929891T ES2125652T3 ES 2125652 T3 ES2125652 T3 ES 2125652T3 ES 95929891 T ES95929891 T ES 95929891T ES 95929891 T ES95929891 T ES 95929891T ES 2125652 T3 ES2125652 T3 ES 2125652T3
Authority
ES
Spain
Prior art keywords
residual moisture
determination
desorption rate
procedure
moisture during
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
ES95929891T
Other languages
English (en)
Inventor
Georg Wilhelm Oetjen
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of ES2125652T3 publication Critical patent/ES2125652T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N7/00—Analysing materials by measuring the pressure or volume of a gas or vapour
    • G01N7/14—Analysing materials by measuring the pressure or volume of a gas or vapour by allowing the material to emit a gas or vapour, e.g. water vapour, and measuring a pressure or volume difference
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/22—Controlling the drying process in dependence on liquid content of solid materials or objects
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Molecular Biology (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

LA INVENCION SE REFIERE A UN PROCESO PARA LA DETERMINACION DE LA HUMEDAD RESIDUAL DURANTE EL SECADO FINAL EN UN PROCESO DE SECADO POR CONGELACION; PARA LA OBTENCION DE LA HUMEDAD RESIDUAL SIN INTERRUPCION DEL PROCESO DE SECADO, SE PROPONE QUE LA TASA DE DESORCION DURANTE LA FASE DE SECADO FINAL SE MIDA A INTERVALOS DE TIEMPO PREDETERMINADOS (POR EJEMPLO 10 MIN.). UN ORDENADOR CALCULA, CON DOS O MAS DE LOS VALORES MEDIDOS, EL TIEMPO EN EL CUAL SE ALCANZARIA LA TASA DE DESORCION (PUNTO CERO DE LA TASA DE DESORCION) QUE MODIFICASE SOLO EN UN VALOR MARGINAL LA HUMEDAD RESIDUAL DESEADA. LA HUMEDAD RESIDUAL CORRESPONDIENTE ES DETERMINADA POR EL ORDENADOR HACIENDO UNA INTEGRACION TEMPORAL DE LA TASA DE DESORCION DESDE EL PUNTO CERO HASTA EL MOMENTO DE LA MEDICION.
ES95929891T 1995-02-14 1995-08-18 Procedimiento para la determinacion de la humedad residual durante la desecacion secundaria en un proceso de liofilizacion. Expired - Lifetime ES2125652T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19504814 1995-02-14

Publications (1)

Publication Number Publication Date
ES2125652T3 true ES2125652T3 (es) 1999-03-01

Family

ID=7753877

Family Applications (1)

Application Number Title Priority Date Filing Date
ES95929891T Expired - Lifetime ES2125652T3 (es) 1995-02-14 1995-08-18 Procedimiento para la determinacion de la humedad residual durante la desecacion secundaria en un proceso de liofilizacion.

Country Status (9)

Country Link
US (1) US6176121B1 (es)
EP (1) EP0811153B1 (es)
JP (1) JP3850442B2 (es)
CN (1) CN1092332C (es)
BR (1) BR9510380A (es)
DE (1) DE59503956D1 (es)
DK (1) DK0811153T3 (es)
ES (1) ES2125652T3 (es)
WO (1) WO1996025654A1 (es)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19719398A1 (de) * 1997-05-07 1998-11-12 Amsco Finn Aqua Gmbh Verfahren zur Steuerung eines Gefriertrocknungsprozesses
US6971187B1 (en) 2002-07-18 2005-12-06 University Of Connecticut Automated process control using manometric temperature measurement
GB0505849D0 (en) * 2005-03-22 2005-04-27 Boc Group Plc Method of monitoring a freeze drying process
ATE532016T1 (de) * 2008-07-23 2011-11-15 Telstar Technologies S L Verfahren zur überwachung der zweiten trocknung in einem gefriertrocknungsverfahren
US8434240B2 (en) 2011-01-31 2013-05-07 Millrock Technology, Inc. Freeze drying method
US9488410B2 (en) * 2011-02-08 2016-11-08 Kyowa Vacuum Engineering, Ltd. Calculation method and calculation device for sublimation interface temperature, bottom part temperature, and sublimation rate of material to be dried in freeze-drying device
US9121637B2 (en) * 2013-06-25 2015-09-01 Millrock Technology Inc. Using surface heat flux measurement to monitor and control a freeze drying process
US10605527B2 (en) 2015-09-22 2020-03-31 Millrock Technology, Inc. Apparatus and method for developing freeze drying protocols using small batches of product
US10350319B2 (en) * 2017-01-23 2019-07-16 Sterilucent, Inc. Method for liquid detection and drying
CN108956369B (zh) * 2018-08-24 2024-09-17 上海暖友实业有限公司 测量发热器具产生水蒸气量的测量仪和水蒸气量检测方法

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2575169A (en) * 1948-09-17 1951-11-13 Stromberg Carlson Co Method of determining the rate of moisture absorption
US4168623A (en) * 1977-02-07 1979-09-25 Philip Morris Incorporated Method for determining volatile content of a sample
US4142403A (en) * 1977-10-17 1979-03-06 Iowa State University Research Foundation, Inc. Method and means for testing soils
US4506994A (en) * 1982-09-20 1985-03-26 General Signal Corporation Dew point measurement and time trend analysis
FR2573530B1 (fr) * 1984-11-21 1987-01-30 Siderurgie Fse Inst Rech Appareil pour la determination rapide du taux d'humidite d'un materiau.
US4606650A (en) 1984-11-26 1986-08-19 Domtar Inc. Microwave, a closed vessel and methods of determining volatile material content
US4561191A (en) 1985-05-28 1985-12-31 Parkinson Martin C Method and apparatus for continuous freeze drying
US4709579A (en) * 1985-08-16 1987-12-01 Westinghouse Electric Corp. Measurement of moisture content
DE3832726C2 (de) * 1988-01-25 1997-04-30 Sartorius Gmbh Trocknungswaage mit digitaler Auswerteeinheit zur Bestimmung des Endpunktes der Trocknung
US5367786A (en) * 1990-11-06 1994-11-29 Jennings; Thomas A. Method and apparatus for monitoring the processing of a material
DE4302983A1 (de) * 1993-02-03 1994-08-04 Roland Dipl Ing Dr In Wernecke Verfahren zur Materialfeuchtebestimmung, Verfahren zur Bestimmung materialspezifischer Sorptionsisothermen sowie Gerät zur Durchführung dieser Verfahren
DE4334902C2 (de) * 1993-10-13 1998-07-02 Martin Christ Gefriertrocknung Gefriertrocknungsanlage

Also Published As

Publication number Publication date
EP0811153A1 (de) 1997-12-10
EP0811153B1 (de) 1998-10-14
DE59503956D1 (de) 1998-11-19
WO1996025654A1 (de) 1996-08-22
CN1175306A (zh) 1998-03-04
DK0811153T3 (da) 1999-06-23
US6176121B1 (en) 2001-01-23
CN1092332C (zh) 2002-10-09
JPH10513568A (ja) 1998-12-22
JP3850442B2 (ja) 2006-11-29
BR9510380A (pt) 1998-06-02

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