AT124728B - Process for the production of asphalt dispersions. - Google Patents

Process for the production of asphalt dispersions.

Info

Publication number
AT124728B
AT124728B AT124728DA AT124728B AT 124728 B AT124728 B AT 124728B AT 124728D A AT124728D A AT 124728DA AT 124728 B AT124728 B AT 124728B
Authority
AT
Austria
Prior art keywords
production
asphalt
dispersions
asphalt dispersions
mucilages
Prior art date
Application number
Other languages
German (de)
Original Assignee
Bataafsche Petroleum
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 AT117479D external-priority patent/AT117479B/en
Application filed by Bataafsche Petroleum filed Critical Bataafsche Petroleum
Application granted granted Critical
Publication of AT124728B publication Critical patent/AT124728B/en

Links

Description

  

   <Desc/Clms Page number 1> 
 



  Verfahren zur Herstellung von Asphalt-Dispersionen. 
 EMI1.1 
 die Gegenwart der fein verteilten kolloidalen Stoffe vom   Typus Aluminiumhydroxyd   in vielen Fällen nicht genügte, um diese Koagulation zu vermeiden ; unter allen Umständen war eine sehr genau Aufsicht bei diesem Verfahren erforderlich. 



   Man hat nun gefunden, dass man diese Schwierigkeiten überwinden kann, indem man die Umkehrung ausser in Gegenwart der fein verteilten kolloidalen Stoffe wie Aluminiumhydroxyd, Eisenhydroxyd, Ton, unlösliche Humusstoffe, Bariumsulfat, Magnesiumoxyd, Zinkhydroxyd, Kieselsäure, Kalziumkarbonat u. dgl. in Gegenwart von Schutzkolloiden wie Leim, Gelatin, Eiweiss, Saponin, Gummiarten, gewissen Sulfosäuren, Schleimstoffen, Stärke od. dgl. durchgeführt. 



     Beispiel1 : 600 kg   Petroleumasphalt werden auf die bekannte Weise in 400 kg 0.   5% niger   wässriger 
 EMI1.2 
 dass 0. 8% Kasein, auf Asphalt berechnet, in die Emulsion gelangt. Unter Rühren setzt man nun 1000 kg der so erhaltenen Emulsion 200 kg einer wässrigen Lösung zu, welche pro 100 kg 6 kg   Aluminiumehlorid     (AICI3. 6O)   enthält. 



   Das erhaltene Produkt, dessen Dispersoid eine positive Ladung hat, ist an und für sich stabil und kann weiter ohne Gefahr für Zusammenballung mit jeder gewünschten Menge eines indifferenten fein verteilten Stoffes, z. B. mit   Sorelzement,   gemischt werden. 

 <Desc/Clms Page number 2> 

 
 EMI2.1 
 in ihre ursprüngliche Form gebracht werden können. 



   Obwohl bei der Herstellung von stabilem Gummilatex gewöhnlich weniger Schwierigkeiten auftreten als bei der Herstellung von stabilen Asphalt-Dispersionen, hat es sich in vielen Fällen als vorteilhaft erwiesen, den in Gummilatex vorhandenen natürlichen Stabilisator durch   Hinzufügung   einer geringen Menge   Sehutzkolloid   zum Latex zu unterstützen. 



   Beispiel 2 : In einen   Rührapparat   lässt man gleichzeitig ammoniakalischen mit Kasein stabilisierten-Latex und soviel einer   Aluminiumchloridlösung   fliessen, dass das   Endprodukt ein tbermass an     Aluminiumehlorid   enthält. Der so erhaltenen Dispersion können Füllmittel in beliebiger Menge zugesetzt werden.



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  Process for the production of asphalt dispersions.
 EMI1.1
 the presence of the finely divided colloidal substances of the aluminum hydroxide type was in many cases insufficient to prevent this coagulation; In all circumstances, very close supervision was required in this process.



   It has now been found that these difficulties can be overcome by performing the inversion except in the presence of finely divided colloidal substances such as aluminum hydroxide, iron hydroxide, clay, insoluble humus substances, barium sulfate, magnesium oxide, zinc hydroxide, silica, calcium carbonate and the like. The like. Od in the presence of protective colloids such as glue, gelatin, egg white, saponin, gums, certain sulfonic acids, mucilages, starch.



     Example 1: 600 kg petroleum asphalt are diluted in the known manner in 400 kg 0.5% aqueous
 EMI1.2
 that 0.8% casein, calculated on asphalt, gets into the emulsion. With stirring, 1000 kg of the emulsion thus obtained are then added to 200 kg of an aqueous solution which contains 6 kg of aluminum chloride (AICI3.6O) per 100 kg.



   The product obtained, the dispersoid of which has a positive charge, is in and of itself stable and can furthermore be used without risk of agglomeration with any desired amount of an indifferent finely divided substance, e.g. B. with Sorel cement.

 <Desc / Clms Page number 2>

 
 EMI2.1
 can be brought into their original form.



   Although the production of stable rubber latex is usually less difficult than the production of stable asphalt dispersions, it has proven advantageous in many cases to support the natural stabilizer present in rubber latex by adding a small amount of protective colloid to the latex.



   Example 2: Ammoniacal latex stabilized with casein and enough aluminum chloride solution are allowed to flow into a stirrer at the same time that the end product contains an excess of aluminum chloride. Any amount of filler can be added to the dispersion obtained in this way.

 

Claims (1)

PATENT-ANSPRUCH : Verfahren zur Herstellung stabiler Dispersionen von Asphalt u. dgl. nach Stammpatent Nr. 117479, dadurch gekennzeichnet, dass man vor dem Einrühren in die wässrige Elektrolytlösung noch Schutzkolloide, wie Leim, Gelatine, Eiweiss, Saponin, Gummiarten, gewisse Sulfosäuren, Schleimstoffe, Stärke od. dgl. zusetzt. PATENT CLAIM: Process for the preparation of stable dispersions of asphalt and the like According to parent patent no. 117479, characterized in that protective colloids such as glue, gelatin, protein, saponin, gums, certain sulfonic acids, mucilages, starch or the like are added before stirring into the aqueous electrolyte solution.
AT124728D 1926-03-30 1928-11-17 Process for the production of asphalt dispersions. AT124728B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT117479D AT117479B (en) 1926-03-30 1926-03-30 Process for the preparation of stable dispersions of asphalt and the like like
NL124728X 1927-12-05

Publications (1)

Publication Number Publication Date
AT124728B true AT124728B (en) 1931-10-10

Family

ID=25606417

Family Applications (1)

Application Number Title Priority Date Filing Date
AT124728D AT124728B (en) 1926-03-30 1928-11-17 Process for the production of asphalt dispersions.

Country Status (1)

Country Link
AT (1) AT124728B (en)

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