ATE112693T1 - Mehrstufiges fraktionelles gefrieren zum superreinigen von kristallisierbaren substanzen. - Google Patents

Mehrstufiges fraktionelles gefrieren zum superreinigen von kristallisierbaren substanzen.

Info

Publication number
ATE112693T1
ATE112693T1 AT89910394T AT89910394T ATE112693T1 AT E112693 T1 ATE112693 T1 AT E112693T1 AT 89910394 T AT89910394 T AT 89910394T AT 89910394 T AT89910394 T AT 89910394T AT E112693 T1 ATE112693 T1 AT E112693T1
Authority
AT
Austria
Prior art keywords
crystallizable substances
stage fractional
super purification
fractional freezing
substances
Prior art date
Application number
AT89910394T
Other languages
English (en)
Inventor
Kenneth F Griffiths
Original Assignee
Kenneth F Griffiths
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 Kenneth F Griffiths filed Critical Kenneth F Griffiths
Application granted granted Critical
Publication of ATE112693T1 publication Critical patent/ATE112693T1/de

Links

Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D9/00—Crystallisation
    • B01D9/004—Fractional crystallisation; Fractionating or rectifying columns
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D9/00—Crystallisation
    • B01D9/0063—Control or regulation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Physical Water Treatments (AREA)
  • Detergent Compositions (AREA)
  • Fats And Perfumes (AREA)
  • Steroid Compounds (AREA)
AT89910394T 1988-08-31 1989-08-24 Mehrstufiges fraktionelles gefrieren zum superreinigen von kristallisierbaren substanzen. ATE112693T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/238,917 US4885016A (en) 1988-08-31 1988-08-31 Multistage fractional freezing for superpurifying crystallizable substances

Publications (1)

Publication Number Publication Date
ATE112693T1 true ATE112693T1 (de) 1994-10-15

Family

ID=22899866

Family Applications (1)

Application Number Title Priority Date Filing Date
AT89910394T ATE112693T1 (de) 1988-08-31 1989-08-24 Mehrstufiges fraktionelles gefrieren zum superreinigen von kristallisierbaren substanzen.

Country Status (7)

Country Link
US (1) US4885016A (de)
EP (1) EP0389601B1 (de)
JP (1) JP2843631B2 (de)
AT (1) ATE112693T1 (de)
CA (1) CA1316810C (de)
DE (1) DE68918844D1 (de)
WO (1) WO1990001978A1 (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2072820A1 (en) * 1988-07-28 1993-12-31 Kenneth F. Griffiths Multistage recrystallization for superpurifying crystallizable substances
US5628205A (en) * 1989-03-08 1997-05-13 Rocky Research Refrigerators/freezers incorporating solid-vapor sorption reactors capable of high reaction rates
US5598721A (en) * 1989-03-08 1997-02-04 Rocky Research Heating and air conditioning systems incorporating solid-vapor sorption reactors capable of high reaction rates
US5664427A (en) * 1989-03-08 1997-09-09 Rocky Research Rapid sorption cooling or freezing appliance
US5186020A (en) * 1991-01-23 1993-02-16 Rocky Research Portable cooler
US5240467A (en) * 1991-01-25 1993-08-31 Bicron Corporation Multistage countercurrent recrystallization process and apparatus for performing same
US5222364A (en) * 1991-09-16 1993-06-29 Nestec S.A. Recovery of aroma gases
US5182926A (en) * 1991-09-16 1993-02-02 Nestec S.A. Recovery of aroma gases
US5466266A (en) * 1993-06-17 1995-11-14 Griffiths; Kenneth F. Closed system multistage superpurification recrystallization
AU2008264872B2 (en) * 2007-06-20 2013-08-22 Nagarjuna Energy Private Limited Process and apparatus for concentrating dilute solution

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US32241A (en) * 1861-05-07 Knitting-machine
US3128188A (en) * 1960-09-02 1964-04-07 Union Carbide Corp Beer lagering process
NL294310A (de) * 1962-07-05
AT279547B (de) 1967-04-14 1970-03-10 Buchs Metallwerk Ag Verfahren und Vorrichtung zur Trennung oder Reinigung schmelzflüssiger, flüssiger oder gelöster Stoffe durch fraktioniertes Kristallisieren
US3992900A (en) * 1973-03-27 1976-11-23 Avco Corporation Plural stage freeze crystallization with wash-water/concentrate interface control
US4143524A (en) * 1974-12-06 1979-03-13 Douwe Egberts Koninklijke Tabaksfabriek-Koffiebranderijen-Theehandel B.V. Process and apparatus for separating crystallizable materials from a multi-component system
ZA80554B (en) * 1979-02-22 1981-02-25 Douwe Egberts Tabaksfab Counter current crystallization process
US4430104A (en) * 1980-10-30 1984-02-07 Grasso's Koniklijke Machine Fabrieken, N.V. Multi-stage countercurrent concentrating system and method and separator
US4406679A (en) * 1981-09-21 1983-09-27 Concentration Specialists, Inc. Apparatus for and method of preparing crystals for washing
NL8200075A (nl) * 1982-01-11 1983-08-01 Tno Werkwijze voor het continu gedeeltelijk kristaliseren en het scheiden van een vloeibaar mengsel en een inrichting voor het uitvoeren van deze werkwijze.
US4557741A (en) * 1984-02-13 1985-12-10 Grasso's Koniklyke Machine Fabriekon N.V. Gradient column freeze concentration system

Also Published As

Publication number Publication date
US4885016A (en) 1989-12-05
CA1316810C (en) 1993-04-27
WO1990001978A1 (en) 1990-03-08
EP0389601A1 (de) 1990-10-03
EP0389601A4 (en) 1991-09-25
EP0389601B1 (de) 1994-10-12
JPH03501824A (ja) 1991-04-25
DE68918844D1 (de) 1994-11-17
JP2843631B2 (ja) 1999-01-06

Similar Documents

Publication Publication Date Title
DE68921273D1 (de) System zum kontinuierlichen Behandeln von Halbleitersubstraten.
IS1546B (is) Aðferð til framleiðslu afoxandi efnis
DE3770987D1 (de) Geraet zum leichteren ausziehen von schraubenteilen.
FR2582149B1 (fr) Appareil pour la croissance d'un cristal semiconducteur
DE3584123D1 (de) Verfahren zum ziehen von halbleitereinkristallen aus untiefen tiegeln gemaess dem czochralskiverfahren.
ATE207036T1 (de) Herstellung von aluminosilikatzeolithen
NO852504L (no) Fremgangsmaate for kontrollert innfoering av reagenser i en vaeske
ATE112693T1 (de) Mehrstufiges fraktionelles gefrieren zum superreinigen von kristallisierbaren substanzen.
ATE98364T1 (de) Gefriertunnel.
MX164495B (es) Controlador pid(proporcional-integral-derivado)avanzado
FR2542495B1 (fr) Procede pour l'incorporation de boues dans du cimentÿa
PT87016A (pt) Process for the culture of algas with improved biologic effects
DE19680622D2 (de) Verfahren zum Herstellen von Siliciumcarbid-Einkristallen
GB2194792B (en) Method for the orientation of liquid crystals
IT8909469A0 (it) Procedimento per la depurazione continua di gas da sostanze di carico portate con se' nonche' dispositivo per la sua esecuzione
DE68906938D1 (de) Einstellung des chargenverhaeltnisses von fluessigkeitsgemischen.
DE69400447D1 (de) Tiegel zum Ziehen von Silizium-Einkristallen
DE69214134D1 (de) Mehrstufige Umkristallisation zum Reinigen kristallisierbare Stoffe
IT8441678A1 (it) Impianto per la rimozione di sospensioni liquide di scarico
DE3687469D1 (de) Reinigung von dem wachstumshormon angehoerenden stoffen.
DK498286A (da) Fremgangsmaade og mellemprodukter til fremstilling af c(3)--c(4)-trans-konfigurerede gamma-butyrolactamer i form af deres isomere, isomerblandinger, racemater eller optiske antipoder
IT8321513A0 (it) Procedimento a piu' stadi per la liquefazione diretta del carbone.
DE59302475D1 (de) Verfahren zur disinklinationsfreien Orientierung von Flüssigkristallen
FR2628420B1 (fr) Procede pour la preparation du methocarbamol
NO177857C (no) Fremgangsmåte for reduksjon av aggregatinnholdet i veksthormonliknende materialer