DE438417C - Process for the almost complete removal of hydrochloric acid from wood sugar solutions - Google Patents

Process for the almost complete removal of hydrochloric acid from wood sugar solutions

Info

Publication number
DE438417C
DE438417C DEI25383D DEI0025383D DE438417C DE 438417 C DE438417 C DE 438417C DE I25383 D DEI25383 D DE I25383D DE I0025383 D DEI0025383 D DE I0025383D DE 438417 C DE438417 C DE 438417C
Authority
DE
Germany
Prior art keywords
hydrochloric acid
wood sugar
complete removal
sugar solutions
sulfuric acid
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
DEI25383D
Other languages
German (de)
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.)
INTERNAT SUGAR AND ALCOHOL CO
Original Assignee
INTERNAT SUGAR AND ALCOHOL CO
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 INTERNAT SUGAR AND ALCOHOL CO filed Critical INTERNAT SUGAR AND ALCOHOL CO
Priority to DEI25383D priority Critical patent/DE438417C/en
Application granted granted Critical
Publication of DE438417C publication Critical patent/DE438417C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C13—SUGAR INDUSTRY
    • C13K—SACCHARIDES OBTAINED FROM NATURAL SOURCES OR BY HYDROLYSIS OF NATURALLY OCCURRING DISACCHARIDES, OLIGOSACCHARIDES OR POLYSACCHARIDES
    • C13K13/00—Sugars not otherwise provided for in this class

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • Organic Chemistry (AREA)
  • Paper (AREA)

Description

Verfahren zum nahezu restlosen Entfernen der Salzsäure aus Holzzuckerlösungen. Nach dem Verfahren des Hauptpatents kann man die Salzsäure aus Holzzuckerlösungen bis auf Z bis 1,5 Prozent herunterbringen, indem man die Lösung fein zerstäubt und in der Hitze mit einem Luftstrom in Berührung bringt.Process for the almost complete removal of hydrochloric acid from wood sugar solutions. The process of the main patent can be used to extract hydrochloric acid from wood sugar solutions Bring down to Z to 1.5 percent by finely atomizing the solution and brought into contact with a stream of air in the heat.

Es wurde nun weiter gefunden, daß man dieses Verfahren erleichtern, beschleunigen und die Entfernung der Salzsäure noch weiter vervollständigen kann, wenn dabei eine entsprechende Menge Schwefelsäure vorhanden ist.It has now been found that this procedure can be facilitated can accelerate and complete the removal of hydrochloric acid even further, if a corresponding amount of sulfuric acid is present.

Beispielsweise setzt man auf zoo Teile Zucker a Teile konzentrierte Schwefelsäure zu. Für die Durchführung des Verfahrens ist es naturgemäß gleichgültig, in welchem Zeitpunkt der Zusatz von Schwefelsäure gemacht wird. Es kann dieser entweder schon beim Aufschließen des Holzes oder im Beispiel des Hauptpatents bei der Vorverdampfung mittels heißen Öles geschehen oder zum Sirup selbst gegeben werden, bevor dieser dem Heißluftverfahren ausgesetzt wird.For example, zoo parts of sugar are a part of concentrated sugar Sulfuric acid too. For the implementation of the procedure it is of course irrelevant at what time the addition of sulfuric acid is made. It can be this either already when opening up the wood or in the example of the main patent with the pre-evaporation done with hot oil or added to the syrup itself before this is exposed to the hot air process.

Bei Verwendung des Zuckers für Genußzwecke ist es selbstverständlich notwendig, die Schwefelsäure nachher wieder zu beseitigen, was in bekannter «'eise durch Fällung als schwerlösliche Erdalkalisulfate geschieht. Diese Ergänzung kann aber gut in Kauf genommen werden, weil dabei ein in jedem Fall sicheres Arbeiten und eine Beseitigung der Salzsäure bis auf r Prozent und darunter möglich wird.If the sugar is used for consumption purposes, it goes without saying It is necessary to remove the sulfuric acid again afterwards, which is known in the art happens by precipitation as poorly soluble alkaline earth sulfates. This supplement can but can be accepted because it is always safe to work with and elimination of the hydrochloric acid down to r percent and below becomes possible.

In der Beschreibung des Hauptpatents 417831 ist schon darauf hingewiesen, daß anderweitige Vorschläge umständlicherer Art zur Beseitigung der Salzsäure nicht annähernd denselben Erfolg bringen. Beispielsweise versagt auch die Elektrolyse der Lösungen hier, wo es auf die Beseitigung der praktisch letzten Anteile der Salzsäure ankommt. Deren Konzentration wird in dem zu behandelnden Sirup schließlich so gering, daß kaum noch die notwendige Leitfähigkeit vorhanden ist. Es entsteht eine starke Erwärmung und Überspannung, so daß keine technisch brauchbare Stromausbeute gegeben ist.In the description of the main patent 417831 it is already pointed out, that other proposals of a more complicated type for the elimination of the hydrochloric acid are not bring about the same success. For example, electrolysis also fails of the solutions here, where it is a matter of eliminating practically the last of the hydrochloric acid arrives. Their concentration in the syrup to be treated is ultimately so low that that there is hardly any conductivity left. It creates a strong one Heating and overvoltage, so that no technically usable current yield is given is.

Claims (1)

PATIsN TA \S PR UCH: Verfahren zum nahezu restlosen Entfernen der Salzsäure aus Holzzuckerlösungen nach Patent 41785r, dadurch gekennzeichnet, daß man das Heißluftverfahren in Gegenwart von etwas Schwefelsäure, beispielsweise Teile konzentrierte Schwefelsäure auf zoo Teile Holzzucker, ausführt.PATIsN TA \ S PR UCH: Procedure for almost complete removal of the Hydrochloric acid from wood sugar solutions according to Patent 41785r, characterized in that the hot air process in the presence of some sulfuric acid, for example parts concentrated sulfuric acid on zoo parts of wood sugar.
DEI25383D 1924-11-21 1924-11-21 Process for the almost complete removal of hydrochloric acid from wood sugar solutions Expired DE438417C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEI25383D DE438417C (en) 1924-11-21 1924-11-21 Process for the almost complete removal of hydrochloric acid from wood sugar solutions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEI25383D DE438417C (en) 1924-11-21 1924-11-21 Process for the almost complete removal of hydrochloric acid from wood sugar solutions

Publications (1)

Publication Number Publication Date
DE438417C true DE438417C (en) 1926-12-17

Family

ID=7186513

Family Applications (1)

Application Number Title Priority Date Filing Date
DEI25383D Expired DE438417C (en) 1924-11-21 1924-11-21 Process for the almost complete removal of hydrochloric acid from wood sugar solutions

Country Status (1)

Country Link
DE (1) DE438417C (en)

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