AT201618B - Process and device for the production of solid alkali metal disulfite - Google Patents

Process and device for the production of solid alkali metal disulfite

Info

Publication number
AT201618B
AT201618B AT201618DA AT201618B AT 201618 B AT201618 B AT 201618B AT 201618D A AT201618D A AT 201618DA AT 201618 B AT201618 B AT 201618B
Authority
AT
Austria
Prior art keywords
alkali metal
production
solid alkali
metal disulfite
disulfite
Prior art date
Application number
Other languages
German (de)
Original Assignee
Basf 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
Priority claimed from DE1907201618D external-priority patent/DE201618C/en
Application filed by Basf Ag filed Critical Basf Ag
Application granted granted Critical
Publication of AT201618B publication Critical patent/AT201618B/en

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B33/00—Calibers
    • G04B33/02—Circular calibers

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Centrifugal Separators (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



  Verfahren und Vorrichtung zur Gewinnung von festem Alkalidisulfit 
 EMI1.1 
 

 <Desc/Clms Page number 2> 

 
 EMI2.1 
 aus. 



   PATENTANSPRÜCHE : 
1. Verfahren zur Aufarbeitung von Suspensionen von festem Alkalidisulfit   inAlkalibisu1fitlösungen   zwecks Gewinnung von trockenem hochprozentigen Alkalidisulfit, dadurch gekennzeichnet, dass man die Suspension durch Zentrifugieren unter Luftabschluss in einen flüssigen und eine festen noch feuchten Anteil trennt und diesen Anteil in einen Wirbelschicht-Trockner fallen lässt, der mittels eines warmen schwefeldioxydhaltigen Gases, vorzugsweise mittels Röstgas, betrieben wird.



   <Desc / Clms Page number 1>
 



  Process and device for the production of solid alkali metal disulfite
 EMI1.1
 

 <Desc / Clms Page number 2>

 
 EMI2.1
 out.



   PATENT CLAIMS:
1. A method for working up suspensions of solid alkali metal disulfite in alkali sulfite solutions for the purpose of obtaining dry, high-percentage alkali metal disulfite, characterized in that the suspension is separated into a liquid and a solid still moist portion by centrifuging in the absence of air and this portion is allowed to fall into a fluidized bed dryer, which is operated by means of a warm gas containing sulfur dioxide, preferably by means of roasting gas.

Claims (1)

2. Vorrichtung zur Ausführung des Verfahrens gemäss Anspruch l, gekennzeichnet durch eine kontinuierlich arbeitende Zentrifuge (1) für die Trennung der Suspension, ein Fallrohr (4) für die Abführung des festen Anteils aus der Zentrifuge und einen Wirbelschicht-Trockner (5), der mittels des Fallrohres mit dem festen Anteil beschickt wird und durch dessen Rost (6) das schwefeldioxydhaltige Gas zugeführt wird. 2. Apparatus for carrying out the method according to claim l, characterized by a continuously operating centrifuge (1) for separating the suspension, a downpipe (4) for discharging the solid fraction from the centrifuge and a fluidized bed dryer (5), the is charged with the solid fraction by means of the downpipe and the gas containing sulfur dioxide is fed through its grate (6). 3. Vorrichtung gemäss Anspruch 2, gekennzeichnet durch eine in der Wirbelschicht nahe über dem EMI2.2 3. Apparatus according to claim 2, characterized by one in the fluidized bed close to the EMI2.2
AT201618D 1907-05-10 1958-03-10 Process and device for the production of solid alkali metal disulfite AT201618B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1907201618D DE201618C (en) 1907-05-10 1907-05-10 Spring clock.

Publications (1)

Publication Number Publication Date
AT201618B true AT201618B (en) 1959-01-10

Family

ID=41056255

Family Applications (1)

Application Number Title Priority Date Filing Date
AT201618D AT201618B (en) 1907-05-10 1958-03-10 Process and device for the production of solid alkali metal disulfite

Country Status (1)

Country Link
AT (1) AT201618B (en)

Similar Documents

Publication Publication Date Title
AT201618B (en) Process and device for the production of solid alkali metal disulfite
US2563437A (en) Process for the manufacture of
US1034574A (en) Process of purifying sulfurous-acid gas.
DE528500C (en) Extraction of sulfur from sulphurous masses
US212399A (en) Improvement in curing tobacco
US1077243A (en) Process of recovering escaping acid-gases from sulfite-towers.
US231489A (en) Julius holtz
US746954A (en) Process of obtaining sulfate of barium and chlorid of zinc.
US434696A (en) Charlott f
DE352781C (en) Process for separating out and drying substances in solution by atomization
DE615012C (en) Process for the production of ammonium sulphate
DE542399C (en) Process for the production of urea in a grainy, scatterable form
AT96496B (en) Process and device for the production of sulfur.
US89074A (en) Improvement in the manufacture of white-lead
US1084436A (en) Process of making solid sodium bisulfite.
US49273A (en) Improved apparatus for separating ocher from sand
US1409897A (en) Sublimation of hydrocarbons
US2026456A (en) Process for the recovery of sulphuric acid and resins
AT14605B (en) Process for the production of dry milk.
DE440381C (en) Process for the production of active charcoal from cocoa waste
DE1036226B (en) Process and device for the production of solid alkali metal disulfite
US136147A (en) Improvement in revivifying charcoal used in rectifying spirits
AT27941B (en) Leaching device for ores.
US136229A (en) Improvement in revivifying charcoal used in rectifying spirits
US1028880A (en) Process of making sulfuric anhydrid.