DE501109C - Process for making yellow to red iron paints - Google Patents

Process for making yellow to red iron paints

Info

Publication number
DE501109C
DE501109C DEI32807D DEI0032807D DE501109C DE 501109 C DE501109 C DE 501109C DE I32807 D DEI32807 D DE I32807D DE I0032807 D DEI0032807 D DE I0032807D DE 501109 C DE501109 C DE 501109C
Authority
DE
Germany
Prior art keywords
red iron
yellow
paints
making yellow
iron
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
DEI32807D
Other languages
German (de)
Inventor
Dr Albert Obladen
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie 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
Application filed by IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Priority to DEI32807D priority Critical patent/DE501109C/en
Application granted granted Critical
Publication of DE501109C publication Critical patent/DE501109C/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01GCOMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G49/00Compounds of iron
    • C01G49/02Oxides; Hydroxides
    • C01G49/06Ferric oxide [Fe2O3]

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Pigments, Carbon Blacks, Or Wood Stains (AREA)
  • Paints Or Removers (AREA)

Description

.Verfahren zur Herstellung von gelben bis roten Eisenfarben Die Herstellung von Eisenoxyd durch Erhitzen von Eisenhydroxyd in Gegenwart von Wasser auf Temperaturen über i7o° C ist bekannt; man erhält bei dieser Arbeitsweise, vor allem bei höheren Temperaturen, dunkle Produkte von geringer Farbstärke und weniger erwünschten Farbtönen. Weiterhin hat man vorgeschlagen, die Farbe von Eisenoxydpigmenten dadurch zu verbessern, daß man Eisensalze bzw. natürliche oder künstliche Eisenoxyde in Gegenwart von Borsäure oder Borax glüht..Process for the production of yellow to red iron paints The production of iron oxide by heating iron hydroxide in the presence of water to temperatures over 170 ° C is known; you get with this way of working, especially with higher Temperatures, dark products of low color strength and less desirable color tones. It has also been proposed to improve the color of iron oxide pigments by that one iron salts or natural or artificial iron oxides in the presence of boric acid or borax glows.

Es hat sich nun gezeigt, daß man gelbe bis rote Eisenoxyde herstellen kann, wenn man in Wasser verteiltes, aus Ferrisalzen gewonnenes Eisenhydroxyd in Gegenwart von Borsäure oder deren Salzen unter erhöhtem Druck auf Temperaturen über ioo° C erhitzt. Die so hergestellten Pigmente zeichnen sich durch leuchtenden Farbton und infolge ihrer besonders feinen Verteilung durch starke Deckkraft aus.It has now been shown that yellow to red iron oxides can be produced if iron hydroxide obtained from ferric salts is dispersed in water in Presence of boric acid or its salts under elevated pressure to temperatures above heated to 100 ° C. The pigments produced in this way are distinguished by their brilliant color and due to their particularly fine distribution, they are characterized by their strong opacity.

Beispiel i 17 Gewichtsteile Eisenoxydhydratpaste von etwa 7o Prozent Gehalt an Eisenhydroxyd werden in einem druckfesten Gefäß mit zwei Gewichtsteilen Borsäure und 15 Teilen Wasser 7 Stunden auf 22o° C erhitzt. Das erhaltene Produkt wird gewaschen und getrocknet und stellt ein brillantes, gelbstichiges Rot von hoher Farb- und Deckkraft dar.Example I 17 parts by weight of about 7o Eisenoxydhydratpaste percentage of ferric hydroxide is heated 7 hours to 22o ° C in a pressure-resistant vessel with two parts by weight boric acid and 1 5 parts of water. The product obtained is washed and dried and is a brilliant, yellowish red with high color and opacity.

Beispiel e 17 Gewichtsteile Eisenoxydhydratpaste, wie in Beispiel i, werden mit 3 Gewichtsteilen Borax und 15 Gewichtsteilen Wasser in einem druckfesten Gefäß 7 Stunden auf 22o° C erhitzt und wie in Beispiel i aufgearbeitet. Das erhaltene Eisenoxyd ist ein leuchtendes Gelbrot von hoher Farb- und Deckkraft.Example E 17 parts by weight Eisenoxydhydratpaste as in Example i, are heated with 3 parts by weight borax and 1 5 parts by weight water in a pressure-resistant vessel 7 hours to 22o ° C and worked up as in Example i. The iron oxide obtained is a bright yellow-red of high color and opacity.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung von gelben bis roten Eisenfarben, dadurch gekennzeichnet, daß Eisenoxydhydrate in Gegenwart wäßriger Lösungen von Borsäure oder deren Salzen unter erhöhtem Druck auf Temperaturen über ioo° C erhitzt werden.PATENT CLAIM: Process for the production of yellow to red iron colors, characterized in that iron oxide hydrates in the presence of aqueous solutions of Boric acid or its salts heated to temperatures above 100 ° C under increased pressure will.
DEI32807D 1927-11-30 1927-11-30 Process for making yellow to red iron paints Expired DE501109C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEI32807D DE501109C (en) 1927-11-30 1927-11-30 Process for making yellow to red iron paints

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEI32807D DE501109C (en) 1927-11-30 1927-11-30 Process for making yellow to red iron paints

Publications (1)

Publication Number Publication Date
DE501109C true DE501109C (en) 1930-06-27

Family

ID=7188231

Family Applications (1)

Application Number Title Priority Date Filing Date
DEI32807D Expired DE501109C (en) 1927-11-30 1927-11-30 Process for making yellow to red iron paints

Country Status (1)

Country Link
DE (1) DE501109C (en)

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