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DE450911C - Crystallizing cradle - Google Patents

Crystallizing cradle

Info

Publication number
DE450911C
DE450911C DEI28429D DEI0028429D DE450911C DE 450911 C DE450911 C DE 450911C DE I28429 D DEI28429 D DE I28429D DE I0028429 D DEI0028429 D DE I0028429D DE 450911 C DE450911 C DE 450911C
Authority
DE
Germany
Prior art keywords
cradle
crystallizing
crystals
crystallization
lye
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
DEI28429D
Other languages
German (de)
Inventor
Dr Walter Seidel
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie 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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Priority to DEI28429D priority Critical patent/DE450911C/en
Application granted granted Critical
Publication of DE450911C publication Critical patent/DE450911C/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D9/00Crystallisation
    • B01D9/0004Crystallisation cooling by heat exchange
    • B01D9/0013Crystallisation cooling by heat exchange by indirect heat exchange
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J8/00Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/08Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with moving particles
    • B01J8/10Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with moving particles moved by stirrers or by rotary drums or rotary receptacles or endless belts

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Saccharide Compounds (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

Kristallisierwiege.Crystallizing cradle.

Die Kristallisation in wiegender Bewegung stößt auf große Schwierigkeiten, sobald es sich darum handelt, größere Kristalle aus Lösungen zu gewinnen, in denen die Kristalle ein bedeutend größeres spezifisches Gewicht haben als die gesättigte Mutterlauge. Diese Kristallisation wird praktisch deshalb auch nur dort angewandt, wo die Kristalle verha.knismäßig leicht in der Lauge in Schwebe gehalten werden können, wie dies für Zucker, Ferrocyankallum, Natriumthiosulfat und ähnliche Stoffe zutrifft. The crystallization in rocking motion encounters great difficulties, as soon as it is a question of obtaining larger crystals from solutions in which the crystals have a significantly greater specific gravity than the saturated one Mother liquor. This crystallization is practically only used there where the crystals are relatively easily held in suspension in the lye like this for sugar, Ferrocyankallum, sodium thiosulphate and similar substances applies.

Es wurde nun eine Kristallisierwiege gefunden, die auch für sich sehr leicht absetzende Kristalle verwendbar ist. Das Neue und Eigenartige dieser Kristallisierwiege besteht darin, daß der Wiegeboden eine nach oben gewölbte Form besitzt. Eine Ausführungsform einer derartigen Kristallisierwiege ist in der Zeichnung dargestellt. Aus ihr geht hervor (s. Abb. I und 2), daß bei tichtiger Neigung die Kristalle der einen Seite auf die Wölbung geschwemmt (s. Abb. 2), dort ausgebreitet und nachher bei der entgegen. gesetzten Neigung zurückgespült werden, wobei sie in ausgiebige Berührung mit der übersättigen Lauge kommen. A crystallizing cradle has now been found, which is also for itself very easily settling crystals can be used. The new and peculiarity of this Crystallization cradle consists in the fact that the weighing base has an upwardly curved shape owns. An embodiment of such a crystallizing cradle is shown in the drawing shown. From it it can be seen (see Fig. I and 2) that with proper inclination the Crystals on one side washed onto the bulge (see Fig. 2), spread out there and afterwards at the opposite. set inclination to be backwashed, taking them come into extensive contact with the oversaturated lye.

Es ist so gelungen, beispielsweise Raliumbichromat, Bariumchlorid und andere Salze in besonders günstiger Form zu erhalten. It has succeeded, for example ralium dichromate, barium chloride and to obtain other salts in a particularly favorable form.

Claims (1)

PATENTANSPRUCH: Kristallisierwiege, dadurch gekennzeichnet, daß der Wiegeboden nach oben gewölbt ist. PATENT CLAIM: Crystallizing cradle, characterized in that the weighing base is curved upwards.
DEI28429D 1926-06-30 1926-06-30 Crystallizing cradle Expired DE450911C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEI28429D DE450911C (en) 1926-06-30 1926-06-30 Crystallizing cradle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEI28429D DE450911C (en) 1926-06-30 1926-06-30 Crystallizing cradle

Publications (1)

Publication Number Publication Date
DE450911C true DE450911C (en) 1927-10-12

Family

ID=7187021

Family Applications (1)

Application Number Title Priority Date Filing Date
DEI28429D Expired DE450911C (en) 1926-06-30 1926-06-30 Crystallizing cradle

Country Status (1)

Country Link
DE (1) DE450911C (en)

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