DE856891C - Process for the production of liquid remaining aqueous emulsions - Google Patents

Process for the production of liquid remaining aqueous emulsions

Info

Publication number
DE856891C
DE856891C DEC301D DEC0000301D DE856891C DE 856891 C DE856891 C DE 856891C DE C301 D DEC301 D DE C301D DE C0000301 D DEC0000301 D DE C0000301D DE 856891 C DE856891 C DE 856891C
Authority
DE
Germany
Prior art keywords
production
aqueous emulsions
urea
liquid remaining
remaining aqueous
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
DEC301D
Other languages
German (de)
Inventor
Hans Dr Boee
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.)
Chemische Fabrik Pfersee GmbH
Original Assignee
Chemische Fabrik Pfersee 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 Chemische Fabrik Pfersee GmbH filed Critical Chemische Fabrik Pfersee GmbH
Priority to DEC301D priority Critical patent/DE856891C/en
Application granted granted Critical
Publication of DE856891C publication Critical patent/DE856891C/en
Expired legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K23/00Use of substances as emulsifying, wetting, dispersing, or foam-producing agents
    • C09K23/017Mixtures of compounds

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Colloid Chemistry (AREA)

Description

Verfahren zur Herstellung flüssig bleibender wässeriger Emulsionen Wässerige Emulsionen von lipophilen Stoffen, die Salze mehrwertiger Ntetalle, insbesondere des Aluminiums, enthalten, sind in konzentriertem Zustande je nach Art und Menge des verwendeten Schutzkolloides mehr oder weniger dickflüssig, zum Teil erstarren sie sogar zu festen Gallerten. Bei Weglassung der Schutzkolloide sind die Emulsionen, wie sie beispielsweise nach dem Verfahren der französischen Patentschrift 864 640 hergestellt werden können, w dhl weniger viskos, neigen aber zur Thixotropie. Dieser Wechsel zwischen flüssiger und fester Beschaffenheit führt u. a. zu Schwierigkeiten bei der Lagerung und dem Transport derartiger Emulsionen, z. B. beim Entleeren aus Fässern mit engen Spunden.Process for the production of aqueous emulsions which remain liquid Watery Emulsions of lipophilic substances, the salts of polyvalent metals, in particular of the aluminum contained are in a concentrated state, depending on the type and quantity of the protective colloid used more or less viscous, partly solidifying they even turned into firm jelly. If the protective colloids are omitted, the emulsions as, for example, according to the method of French patent specification 864 640 can be produced that are less viscous, but tend to be thixotropic. This Switching between liquid and solid properties leads to, among other things. to trouble in the storage and transport of such emulsions, e.g. B. when emptying Barrels with tight bungs.

Es wurde gefunden, daß sich dieser Nachteil vermeiden läßt und flüssig bleibende, nicht thixotrope Emulsionen herstellbar sind, wenn man den Emulsionen Harnstoff zusetzt. Der Zusatz kann in einem beliebigen Zeitpunkt der Emulsionstierstellung erfolgen, zweckmäßig wird der Harnstoff jedoch der fertigen Emulsion zugefügt. An Stelle von Harnstoff kann auch Thioharnstoff verwendet werden. It has been found that this disadvantage can be avoided and that it is liquid Permanent, non-thixotropic emulsions can be produced if the emulsions Urea adds. The addition can be made at any point in time during the preparation of the emulsion animals take place, but the urea is expediently added to the finished emulsion. At Thiourea can also be used in place of urea.

Es ist bekannt, daß Harnstoff Gelatine- und l.eimgallerten verflüssigt, jedoch enthalten gerade die Emulsionen nach dem- Verfah ren der vorliegenden Anmeldung keinerlei derartige Schutzkolloide und hei der Thixotropie handelt es sich hekanntlich um die reversible Erscheinung, daß Kolloide in der Ruhe erstarren und durch Bewegung verflüssigt werden. It is known that urea liquefies gelatine and egg gelatin, however just included the emulsions according to the process present application no such protective colloids and is called thixotropy As is known, it is a question of the reversible phenomenon that colloids are at rest solidify and be liquefied by movement.

B e i s p i e l In einen Kreiselmischer werden Sol einer hasischen Aluminiumformiatlösung (15%, Al2O3 und 19% Ameisensäure) gegeben, die mit Ammoniak auf ein p, von rund 4 abgestumpft ist. Nach dem Erwärmen auf 75 ° läßt man ein geschmolienes Gemisch von 18 kg Paraffin und gkg eines synthetischen Hartwachses (Schmelzpunkt 100°, Verseifungszahl 70, Säurezahl 40) zulaufen und rührt bei dieser Temperatur l/2 Stunde lang. Dann fügt man @1 kg gepulverten Harnstoff zu, so daß die entstandene Emulsion flüssiger wird und in einer Hochdruckhomogenisiermaschine bei 20 atü nachbehandelt werden kann. Nach dem Kaltrühren der homogenisierten Emulsion setzt man noch 40 1 einer 250/o.igen Harnstofflösung zu. Example p i e l In a gyro mixer, Sol one becomes hasish Aluminum formate solution (15%, Al2O3 and 19% formic acid) added to the ammonia is truncated to ap, by around 4. After heating to 75 ° one leaves a melted Mixture of 18 kg paraffin and gkg of a synthetic hard wax (melting point 100 °, saponification number 70, acid number 40) and stirred at this temperature for 1/2 hour. Then @ 1 kg of powdered urea is added so that the resulting The emulsion becomes more fluid and is post-treated in a high pressure homogenizing machine at 20 atmospheres can be. After the homogenized emulsion has been stirred cold, another 40 is added 1 of a 250% urea solution.

Die fertige Emulsion ist flüssig und bleibt es auch bei längerem Stehen, während eine gleichartige Emulsion ohne Harnstoff erheblich dicker und vor allem thixotrol) ist. The finished emulsion is liquid and stays that way for a long time Stand, while a similar emulsion without urea, considerably thicker and in front especially thixotrol) is.

Claims (1)

P A T E N T A N S P R Ü C H: Verfahren zur Herstellung flüssig bleibender, konzentrierter wässeriger Emulsionen von philen Stoffen, die Salze mehrwertiger Metalle aber keine Schutzkolloide wie Leim und Gelatine enthalten, gekennzeichnet durch die Mitverwendung von Harnstoff und bzw. oder Thioharnstoff in Mengen, die zur Vermeidung von Thixotropic genügen. P A T E N T A N S P R Ü C H: Process for the production of liquid, concentrated aqueous emulsions of philic substances, the salts of polyvalent ones Metals but do not contain protective colloids such as glue and gelatine are marked by using urea and / or thiourea in amounts that suffice to avoid thixotropic. Angezogene Druckschriften: Deutsche Patentschrift Nr. 612 417; französische Patentschrift Nr. 778 548; Chem. Centralblatt 1916, Bd. 4, 5. 970 und 971 (Referate über Biochem. Zeitschr. 76, S. 107 bis 176 u. über Sitzungsber, der Königl.-Preuß, Akademie der Wiss., Berlin I9I6, S. 1034 bis 1042). 1941, I, S. 144 (Ref. über Wardle, Text, Color. 62. S. 629 und 630), 1943, 1, 5. 605 (Ref. über fr. Physique Radium (8), 3, S. 117 bis i2o); Kolloid-Zeitschrift 46, S.289). Cited publications: German Patent No. 612,417; french U.S. Patent No. 778,548; Chem. Centralblatt 1916, Vol. 4, 5. 970 and 971 (Referate about Biochem. Magazine 76, p. 107 to 176 and about the meeting, the Royal Prussia, Akademie der Wiss., Berlin 1916, pp. 1034 to 1042). 1941, I, p. 144 (Ref. Via Wardle, Text, color. 62. pp. 629 and 630), 1943, 1, 5. 605 (ref. On fr. Physique Radium (8), 3, p. 117 to i2o); Kolloid-Zeitschrift 46, p.289).
DEC301D 1945-01-12 1945-01-12 Process for the production of liquid remaining aqueous emulsions Expired DE856891C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEC301D DE856891C (en) 1945-01-12 1945-01-12 Process for the production of liquid remaining aqueous emulsions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEC301D DE856891C (en) 1945-01-12 1945-01-12 Process for the production of liquid remaining aqueous emulsions

Publications (1)

Publication Number Publication Date
DE856891C true DE856891C (en) 1952-11-24

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Family Applications (1)

Application Number Title Priority Date Filing Date
DEC301D Expired DE856891C (en) 1945-01-12 1945-01-12 Process for the production of liquid remaining aqueous emulsions

Country Status (1)

Country Link
DE (1) DE856891C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1044322B (en) * 1953-10-29 1958-11-20 Stockhausen & Cie Chem Fab Neutral or alkaline liquid metal cleaning agents
DE1047357B (en) * 1955-05-23 1958-12-24 Rotta Chem Fab Theodor Process for the production of aqueous, easily dilutable emulsions of hydrophobic substances
DE1238924B (en) * 1960-11-16 1967-04-20 Bayer Ag Process for the production of aqueous emulsions

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR778548A (en) * 1933-09-16 1935-03-18 Ig Farbenindustrie Ag Process for the preparation of stable solutions of formate or aluminum acetate
DE612417C (en) * 1929-09-26 1935-04-30 I G Farbenindustrie Akt Ges Process for the production of highly concentrated aqueous solutions from salts of organic compounds containing sulfonic acid groups with capillary-active properties

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE612417C (en) * 1929-09-26 1935-04-30 I G Farbenindustrie Akt Ges Process for the production of highly concentrated aqueous solutions from salts of organic compounds containing sulfonic acid groups with capillary-active properties
FR778548A (en) * 1933-09-16 1935-03-18 Ig Farbenindustrie Ag Process for the preparation of stable solutions of formate or aluminum acetate

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1044322B (en) * 1953-10-29 1958-11-20 Stockhausen & Cie Chem Fab Neutral or alkaline liquid metal cleaning agents
DE1047357B (en) * 1955-05-23 1958-12-24 Rotta Chem Fab Theodor Process for the production of aqueous, easily dilutable emulsions of hydrophobic substances
DE1238924B (en) * 1960-11-16 1967-04-20 Bayer Ag Process for the production of aqueous emulsions

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