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DE534282C - Process for the preparation of an oxygen dispensing agent in gaseous form - Google Patents

Process for the preparation of an oxygen dispensing agent in gaseous form

Info

Publication number
DE534282C
DE534282C DED54917D DED0054917D DE534282C DE 534282 C DE534282 C DE 534282C DE D54917 D DED54917 D DE D54917D DE D0054917 D DED0054917 D DE D0054917D DE 534282 C DE534282 C DE 534282C
Authority
DE
Germany
Prior art keywords
preparation
drainage
gaseous form
crystallized
oxygen
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
DED54917D
Other languages
German (de)
Inventor
Dr-Ing Harry Kloepfer
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.)
Evonik Operations GmbH
Original Assignee
Degussa GmbH
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 Degussa GmbH filed Critical Degussa GmbH
Priority to DED54917D priority Critical patent/DE534282C/en
Application granted granted Critical
Publication of DE534282C publication Critical patent/DE534282C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B15/00—Peroxides; Peroxyhydrates; Peroxyacids or salts thereof; Superoxides; Ozonides
    • C01B15/055—Peroxyhydrates; Peroxyacids or salts thereof
    • C01B15/12—Peroxyhydrates; Peroxyacids or salts thereof containing boron
    • C01B15/126—Dehydration of solid hydrated peroxyborates to less hydrated or anhydrous products

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)

Description

Verfabren zur Herstellung eines Sauerstoff in Gasform abgebenden .IViittels Durch das Hauptpatent ist ein Verfahren zur Herstellung eines Sauerstoff in Gasform abgebenden Mittels geschützt, 'das darauf beruht, daß kristallisierte Perborate unter Vermeidung des Schmelzens von anhaftendem Kristallwasser befreit werden. Dieses Verfahren liefert pulverige Erzeugnisse.Process for the production of an oxygen-releasing agent The main patent describes a process for producing an oxygen in gaseous form protected releasing agent, 'which is based on the fact that crystallized perborates be freed of adhering water of crystallization while avoiding melting. This Process delivers powdery products.

Nach vorliegender Erfindung gelangt man zu geformten Präparaten von ausgezeichneter Beschaffenheit, und zwar dadurch, daß man das Produkt vor Beendigung der Entwässerung in Formkörper, z. B. Tabletten, überführt.According to the present invention, molded preparations of excellent quality, in that you have the product before completion the drainage in moldings, for. B. tablets, transferred.

Man kann z. B. derart verfahren, daß man das als Ausgangsmaterial dienende kristallisierte Perborat unter Vermeidung des Schmelzens so weit entwässert, bis es etwa 3 M01. Kristallwasser verloren hat. Hierauf wird das pulverige Gut bTikettiert oder tablettiert und dies verhaltenen Formkörper alsdann der weiteren Entwässerung unterworfen.You can z. B. proceed in such a way that it is used as the starting material serving crystallized perborate dehydrated while avoiding melting so far, until it is about 3 M01. Has lost crystal water. The powdery product is then labeled or tabletted and this restrained moldings then the further dehydration subject.

Beispiel Kristallinisches Natriumperborat wird in einer von außen geheizten Drehtrommel unter Verwendung von Vakuum zunächst auf q.o bis 5o° gehalten und alsdann langsam in dem Maße der fortschreitenden Entwässerung bis auf etwa roo° erwärmt, wobei die Temperaturerhöhung und die sonstigen Arbeitsbedingungen so zu wählen sind, daß ein Schmelzen und Klumpigwerden des Salzes vermieden wird. Nachdem die Abgabe von Wasser bei zoo° aufgehört hat, wird das pulverige Gut in üblicher Weise, z. B. mit Hilfe üblicher Tablettierapparate, in Formkörper übergeführt. Die Tabletten werden alsdann in Vaküumtrockenschränken, Kammern o. dgl. weitergetrocknet, und zwar zweckmäßig unter Verwendung eines getrockneten indifferenten Spülgases. Das Evakuieren wird während der Durchführung des Entwässerungsvorganges zweckmäßig so gesteuert, daß- die Dampftensiön nicht wesentlich über 40 mm Quecksilber steigt und vorzugsweise unter 30 mm gehalten wird.Example Crystalline sodium perborate is first held in an externally heated rotating drum using a vacuum to qo to 5o ° and then slowly heated to around roo ° as the dehydration progresses, the temperature increase and other working conditions being selected so that melting and lumping of the salt is avoided. After the release of water has stopped at zoo °, the powdery material is in the usual way, for. B. with the help of conventional tabletting apparatus, converted into shaped bodies. The tablets are then further dried in vacuum drying cabinets, chambers or the like, advantageously using a dried inert purging gas. The evacuation is expediently controlled while the dehydration process is being carried out so that the vapor level does not rise significantly above 40 mm of mercury and is preferably kept below 30 mm.

Nach einer Ausführungsform werden die Tabletten o. dgl. in den zur Aufbewahrung bzw. zum Versand bestimmten Packungen, z. B. Glasgefäßen., völlig entwässert, wobei die Gefäße zweckmäßig alsbald nach Beendigung des Entwässerungsvorganges geschlossen werden. Es hat sich gezeigt, daß die weitere Entwässerung der Forrrik'o'rper sich ohne Schwierigkeit durchführen -läßt.. .Las Verfahren führt zu P'räpäräteri; die Iseh`t widerstandsfähig gegenüber mechanischen -Einflüssen sind, was insofern nicht voraussehbar war; als die Abgabe des letzten Moleküls Wasser mit einer erheblichen Volumvergrößerung der Tabletten, z. B. bis zu 5o °% und mehr, verbunden ist. Gegenüber den pulverförmigen Produkten besitzen die Tabletten noch den weiteren Vorzug, daß sie gegenüber der Einwirkung der Luft erheblich weniger empfindlich sind.According to one embodiment, the tablets o. The like. In the for Storage or packs intended for shipping, e.g. B. Glass vessels., Completely drained, the vessels expediently closed as soon as the drainage process is complete will. It has been shown that the further drainage of the Forrrik'o'rper can be carried out without difficulty ... The procedure leads to P'räpäräteri; the Iseh`t are resistant to mechanical influences, what insofar was not foreseeable; than the release of the last molecule of water with a significant Increasing the volume of the tablets, e.g. B. up to 5o °% and more, is connected. Opposite to The tablets have the further advantage of powdered products that they are considerably less sensitive to the effects of the air.

Claims (3)

PATENTANSPRÜCHE: i. Verfahren zur Herstellung eines Sauerstoff in Gasforrri abgebenden Mittels durch Entwässern von kristallisiertem Perborat nach Patent 528 873, dadurch gekennzeichnet, daß das pulverförmige Gut vor Beendigung des Entwässerungsvorganges in Formkörper übergeführt und letztere alsdann der weiteren Entwässerung unterworfen werden. PATENT CLAIMS: i. Process for the production of an oxygen in Gasforrri releasing agent by dehydrating crystallized perborate Patent 528 873, characterized in that the powdery material before termination of the dewatering process converted into molded bodies and the latter then the further To be subjected to drainage. 2. Verfahren nach Anspruch i, dadurch gekennzeichnet, daß kristallisierte Perborate unter Vermeidung des Schmelzens bis zu einem -Verlust von etwa 3 Mol. Wasser entwässert, hierauf in Tablettenform o. dgl. übergeführt, die erhaltenen Formkörper, zweckmäßig unter Mitwirkung von Spülgasen, entwässert werden. 2. The method according to claim i, characterized in that that crystallized perborates avoid melting to a loss dehydrated by about 3 moles of water, then converted into tablets or the like, the moldings obtained, expediently with the aid of flushing gases, dewatered will. 3. Verfahren nach Ansprüchen i und 2, dadurch gekennzeichnet, daß die Entwässerung der Formkörper in den Verpakkungs- bzw. Versandgefäßen durchgeführt wird. -3. The method according to claims i and 2, characterized in that the drainage the shaped body is carried out in the packaging or shipping containers. -
DED54917D 1928-02-04 1928-02-04 Process for the preparation of an oxygen dispensing agent in gaseous form Expired DE534282C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DED54917D DE534282C (en) 1928-02-04 1928-02-04 Process for the preparation of an oxygen dispensing agent in gaseous form

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED54917D DE534282C (en) 1928-02-04 1928-02-04 Process for the preparation of an oxygen dispensing agent in gaseous form

Publications (1)

Publication Number Publication Date
DE534282C true DE534282C (en) 1931-09-24

Family

ID=7056119

Family Applications (1)

Application Number Title Priority Date Filing Date
DED54917D Expired DE534282C (en) 1928-02-04 1928-02-04 Process for the preparation of an oxygen dispensing agent in gaseous form

Country Status (1)

Country Link
DE (1) DE534282C (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE958737C (en) * 1954-01-17 1957-02-21 Degussa Process for the production of a perborax compound which splits off gaseous oxygen when dissolved
DE3725105A1 (en) * 1987-07-29 1989-02-09 Draegerwerk Ag CHEMICAL OXYGEN GENERATOR WITH TABLETED CHLORATE FILLING
EP0446597A1 (en) * 1990-02-10 1991-09-18 SOLVAY INTEROX GmbH Process for making peroxoborat-agglomerates
EP0471318A1 (en) * 1990-08-16 1992-02-19 SOLVAY INTEROX GmbH Process for manufacturing agglomerated sodium perborate monohydrate having improved properties
US5203877A (en) * 1990-08-16 1993-04-20 Peroxid-Chemie Gmbh Process for producing sodium perborate monohydrate agglomerate

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE958737C (en) * 1954-01-17 1957-02-21 Degussa Process for the production of a perborax compound which splits off gaseous oxygen when dissolved
DE3725105A1 (en) * 1987-07-29 1989-02-09 Draegerwerk Ag CHEMICAL OXYGEN GENERATOR WITH TABLETED CHLORATE FILLING
EP0446597A1 (en) * 1990-02-10 1991-09-18 SOLVAY INTEROX GmbH Process for making peroxoborat-agglomerates
TR26534A (en) * 1990-02-10 1995-03-15 Solvay Interox Gmbh PROCEDURE FOR THE PRODUCTION OF PEROXOBORATE AGLOMERATES
US5399328A (en) * 1990-02-10 1995-03-21 Peroxid-Chemie Gmbh Process for preparing peroxyborate agglomerates
EP0471318A1 (en) * 1990-08-16 1992-02-19 SOLVAY INTEROX GmbH Process for manufacturing agglomerated sodium perborate monohydrate having improved properties
US5203877A (en) * 1990-08-16 1993-04-20 Peroxid-Chemie Gmbh Process for producing sodium perborate monohydrate agglomerate
AU646065B2 (en) * 1990-08-16 1994-02-03 Solvay Interox Gmbh Method for the preparation of agglomerated sodium perborate monohydrate with improved properties

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