DE575537C - Production of yellow earth colors - Google Patents

Production of yellow earth colors

Info

Publication number
DE575537C
DE575537C DES74275D DES0074275D DE575537C DE 575537 C DE575537 C DE 575537C DE S74275 D DES74275 D DE S74275D DE S0074275 D DES0074275 D DE S0074275D DE 575537 C DE575537 C DE 575537C
Authority
DE
Germany
Prior art keywords
production
colors
yellow
yellow earth
earth colors
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
DES74275D
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.)
FELIX SINGER DR ING DR
Original Assignee
FELIX SINGER DR ING DR
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 FELIX SINGER DR ING DR filed Critical FELIX SINGER DR ING DR
Priority to DES74275D priority Critical patent/DE575537C/en
Application granted granted Critical
Publication of DE575537C publication Critical patent/DE575537C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
    • C09C1/40—Compounds of aluminium

Description

Herstellung gelber Erdfarben Heute weiden als gelbe Erdfarben neben Kadmiumgelb CdS, Neapelgelb Pb3 (Sb04), Massivgold SnS2 und Oker Fe2Og hauptsächlich die Chromfarben: Chromgelb PbCr04, Zinkgelb ZnCr04 benutzt. Da ihr Gehalt an Chromoxyd 5 5 bZIV. 31% beträgt, sind diese Farben verhältnismäßig teuer.Production of yellow earth colors Today, yellow earth colors graze alongside Cadmium yellow CdS, Naples yellow Pb3 (Sb04), solid gold SnS2 and Oker Fe2Og mainly the chrome colors: chrome yellow PbCr04, zinc yellow ZnCr04 used. As their chromium oxide content 5 5 bZIV. 31%, these colors are relatively expensive.

Die vorliegende Erfindung schafft Farben gleicher Leuchtkraft und gesteigerter Ausgiebigkeit bei gleichzeitiger erheblicher Verbilligung und stellt somit .eine wertvolle Bereicherung der Technik dar. Es wurde nämlich überraschenderweise gefunden, daß Aluminiumoxyd gegebenenfalls in Mischung mit weißen Erdalkallverbindungen ein hervorragender Farbträger- für Chromoxyd ist. Wenn man beispielsweise auf Mischungen von io bis 8o% Tonerdeanhydrid und io bis 8o % Kalk- i bis i o % Chromoxyd oder auf Mischungen von io -bis 8o% Tonerdeanhydrid und i o bis 8 o % Magnesiumcarbonat i bis i 5 % Calciumchromat dadurch niederschlägt, daß man die entsprechenden Lösungen der Salze dieser Komponenten mit einer alkalischen Ammoniumcarbonatlösung ausfällt und das Gemisch bei einer Temperatur von iooo bis 1200'C glüht, so erhält man außerordentlich leuchtkräftige und ausgiebige eigelbe Farben.The present invention creates colors of the same luminosity and increased abundance while at the same time being considerably cheaper and thus represents a valuable enrichment of technology. It has been surprisingly found that aluminum oxide, optionally mixed with white alkaline earth compounds, is an excellent color carrier for chromium oxide. If, for example, on mixtures of 10 to 80% alumina anhydride and 10 to 80% lime i to 10% chromium oxide or on mixtures of 10 to 80% alumina anhydride and 10 to 80% magnesium carbonate i to i 5% calcium chromate is precipitated in that if the corresponding solutions of the salts of these components are precipitated with an alkaline ammonium carbonate solution and the mixture is annealed at a temperature of 100 to 1200 ° C. , extraordinarily bright and rich egg-yellow colors are obtained.

Claims (1)

- PATENTANSPRUCH: . Herstellung gelber Erdfarben, dadurch gekennzeichnet, daß ein gemeinsam niedergeschlagenes Gemisch von Aluminiumoxyd und Chromoxyd oder ihrer Verbindungen mit farblosen Erdalla.lienverbin. Jungen geglüht wird.- PATENT CLAIM:. Production of yellow earth colors, characterized that a jointly precipitated mixture of aluminum oxide and chromium oxide or their connections with colorless Erdalla.lienverbin. Boy is annealed.
DES74275D 1926-04-25 1926-04-25 Production of yellow earth colors Expired DE575537C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES74275D DE575537C (en) 1926-04-25 1926-04-25 Production of yellow earth colors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES74275D DE575537C (en) 1926-04-25 1926-04-25 Production of yellow earth colors

Publications (1)

Publication Number Publication Date
DE575537C true DE575537C (en) 1933-04-28

Family

ID=7504536

Family Applications (1)

Application Number Title Priority Date Filing Date
DES74275D Expired DE575537C (en) 1926-04-25 1926-04-25 Production of yellow earth colors

Country Status (1)

Country Link
DE (1) DE575537C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE747780C (en) * 1939-01-21 1944-10-13 Manufacture of anti-corrosive pigments

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE747780C (en) * 1939-01-21 1944-10-13 Manufacture of anti-corrosive pigments

Similar Documents

Publication Publication Date Title
DE575537C (en) Production of yellow earth colors
DE682905C (en) Process for the production of 1,1-dichloroethane
DE388546C (en) Process for the production of sulphonic acids containing sulphurous derivatives of high molecular weight aromatic hydrocarbons
DE661848C (en) Process for the production of blast furnace slag cements
DE432419C (en) Process for the production of white table salt from raw rock salt u. like
DE196016C (en)
AT72522B (en) Process for making paints.
DE548150C (en) Process for the production of cadmium paints
DE699302C (en) Process for the production of selenides and sulphide selenides
DE416462C (en) Process for the production of silicate paints
DE556457C (en) Process for the production of rhodane compounds
CH220662A (en) Process for the production of a sulfur dye.
DE420251C (en) Production of pure blancfixe and sodium thiosulphate
DE524620C (en) Process for the representation of blue colors (Berlin blue, Paris blue, steel blue, etc.) from salts of ferrocyanic acid
AT85469B (en) Process for the production of artificial tanning agents.
DE340124C (en) Process for the production of brown sulfur dyes
DE478119C (en) Method of making red iron paints
DE481852C (en) Process for the preparation of potassium chromates
DE906106C (en) Electric interlocking, in particular track diagram interlocking, with purely electrical exclusions, in which, if routes are not created due to disruptions, blocked routes are created
AT88341B (en) Process for the preparation of blue wool dyes.
DE422470C (en) Process for the production of alkaline earth chlorides
AT36839B (en) Process for making a paper glue.
AT108285B (en) Process for the production of saccharin.
DE347152C (en) Process for the production of cadmium yellow
DE416592C (en) Process for the production of molten cement and sulphurous acid