DE955887C - Manufacture of titanium dioxide or titanium dioxide composition pigments - Google Patents

Manufacture of titanium dioxide or titanium dioxide composition pigments

Info

Publication number
DE955887C
DE955887C DEW7598A DEW0007598A DE955887C DE 955887 C DE955887 C DE 955887C DE W7598 A DEW7598 A DE W7598A DE W0007598 A DEW0007598 A DE W0007598A DE 955887 C DE955887 C DE 955887C
Authority
DE
Germany
Prior art keywords
titanium dioxide
manufacture
pigments
composition pigments
liquid
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
DEW7598A
Other languages
German (de)
Inventor
Dr-Ing Paul Weise
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.)
PAUL WEISE DR ING
Original Assignee
PAUL WEISE DR ING
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 PAUL WEISE DR ING filed Critical PAUL WEISE DR ING
Priority to DEW7598A priority Critical patent/DE955887C/en
Application granted granted Critical
Publication of DE955887C publication Critical patent/DE955887C/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
    • C09C1/36—Compounds of titanium
    • 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
    • C09C1/36—Compounds of titanium
    • C09C1/3607—Titanium dioxide
    • 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
    • C09C1/36—Compounds of titanium
    • C09C1/3607—Titanium dioxide
    • C09C1/3653—Treatment with inorganic compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Pigments, Carbon Blacks, Or Wood Stains (AREA)

Description

Herstellung von Titandioxyd- oder Titandioxydkompositions-Pigmenten Bei der Herstellung von Titandioxyd in den bekannten Kristallmodifikationen und bei der Herstellung von Titandioxydkomposmtions-Pigmenten,. die außer Titandioxyd noch weiße oder farbige Komposita enthalten, werden die Produkte nach dem Fällen und Waschen einer Wärmebehandlung bei normalem oder erhöhtem Druck unterworfen. Hierbei fallen, je nach der angewandten Temperatur,. der Art der Komposita und den Fällbedingun@gen,mehr oder weniger dicht gesiintert6 Produkte an, die erst nach intensivem Vermahlen die für Pigmente erwünschte Teilchengröße besitzen. Durch düesies Vermahlen wird aber oft der Farbton der Produkte ungünstig b@eeinflußt, während bei zu geringer Maklwirkung das Färbevermögen sinkt.Manufacture of titanium dioxide or titanium dioxide composition pigments In the production of titanium dioxide in the known crystal modifications and in the manufacture of titanium dioxide composite pigments. those except titanium dioxide The products will still contain white or colored compounds after felling and washing subjected to a heat treatment at normal or elevated pressure. Here, depending on the temperature used,. the type of compound and the Precipitation conditions, more or less densely sintered6 products, which only after intensive grinding have the desired particle size for pigments. By düesies However, the color shade of the products is often adversely affected during grinding if the blending effect is too low, the coloring capacity decreases.

Es ist bekannt, daß bei Titandioxydkompositions-Pigmenten, die Zinkverbindungen enthalten, durch Abschrecken in Wasser die .Mahlarbeit verringert werden kann. Jedoch ist der Farbton trotzdem noch unbefriedigend.It is known that in titanium dioxide composition pigments, the zinc compounds The grinding work can be reduced by quenching in water. However the color is still unsatisfactory.

Es wurde nun -gefunden, da,ß durch Zusatz von Säuren .oder saueren Salzen zu der Abschreckflüs!sügkeit dar Farbton von Titand2oxyden und Titandioxydkomposiitions-Pigment@en wesentlich verbessert wird. Weiterhin wurde gefunden, daß die Wirkung auch in bezug auf das Färbevermögen steigt, wenn außerdem Benetzungsmittel zugesetzt werden. Durch Kühlen des Ab;schreckmittels läßt sich dessen Temperatur konstant halten. Die Menge der Zusätze richtet sich nach der Ca.l.ciniertemperatur und den vorhandenen Verunreinigungen. Sie kann durch Wiederverwendung der Abschreck-$üss@gkeit in tragbaren Grenzen gehalten werden. Beispiel Ein nach bekannten Verfahren hergestelltes Titandioxydfällungsprodukt wird gewaschen, mit den üblichen Zusätzen innig vermischt und bei etwa iooo° geglüht. Das noch glühende Produkt wird in einer o, i %igen Phosphorsäure von 15' abgeschreckt, der etwas Ben.etzungsmittel zugefügt ist. Die Flüssigkeit wird im Gleichstrom mit dem Glühprodukt bewegt und das abgeschreckte Produkt in einem Eindicker von der Flüssigkeit getrennt, gewaschen, getrocknet und anschließend in einem Desintegrator vermahlen.It has now been found that ß through the addition of acids. Or acidic Salts for the quenching liquid, the color of titanium oxides and titanium dioxide composition pigments is significantly improved. Furthermore, it was found that the effect also in relation to on the coloring power increases if wetting agents are also added will. By cooling the quenchant, its temperature can be kept constant keep. The amount of additives depends on the approx existing impurities. It can be done by reusing the deterrent be kept within acceptable limits. Example A manufactured according to known methods Titanium dioxide precipitate is washed and intimately mixed with the usual additives and annealed at about 100 °. The still glowing product is in an o, i% phosphoric acid quenched from 15 'to which some wetting agent is added. The liquid is moved in cocurrent with the annealing product and the quenched product in separated from the liquid by a thickener, washed, dried and then grind in a disintegrator.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung von. Titandioxyd-oder Titandioxydkomposition.s-Pigarnenten durch Ausfällen, Calcinieren, Abschrecken in einer Flüssigkeit und Vermahlen, dadurch gekennzeichnet, daß das calcinierte Gut in einer sauer reagierenden. Flüssigkeit, die gegebenenfalls noch ein Netzmittel enthält, abgeschreckt wird. In Betracht .gezogene Druckschriften: Deutsche Patentschriften Nr. 570 875, 648 518; G. P 1 a s s o w : »Die Anstrichatoffe«, Verlag Walter d-e Gruyter & Co., Berlin und Leipzig (1928), S. i. PATENT CLAIM: Process for the production of. Titanium dioxide or titanium dioxide composition pigments by precipitation, calcining, quenching in a liquid and grinding, characterized in that the calcined material reacts in an acidic manner. Liquid, which may also contain a wetting agent, is quenched. Considered publications: German Patent Specifications No. 570 875, 648 518; G. P 1 assow: "Die Anstrichatoffe", Verlag Walter de Gruyter & Co., Berlin and Leipzig (1928), p. I.
DEW7598A 1952-01-05 1952-01-05 Manufacture of titanium dioxide or titanium dioxide composition pigments Expired DE955887C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEW7598A DE955887C (en) 1952-01-05 1952-01-05 Manufacture of titanium dioxide or titanium dioxide composition pigments

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEW7598A DE955887C (en) 1952-01-05 1952-01-05 Manufacture of titanium dioxide or titanium dioxide composition pigments

Publications (1)

Publication Number Publication Date
DE955887C true DE955887C (en) 1957-01-10

Family

ID=7593656

Family Applications (1)

Application Number Title Priority Date Filing Date
DEW7598A Expired DE955887C (en) 1952-01-05 1952-01-05 Manufacture of titanium dioxide or titanium dioxide composition pigments

Country Status (1)

Country Link
DE (1) DE955887C (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE570875C (en) * 1930-01-29 1933-02-23 Titanium Pigment Company Inc Process for the production of titanium composition pigments
DE648518C (en) * 1934-03-12 1937-08-04 I G Farbenindustrie Akt Ges Process for the production of non-chalking white pigments

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE570875C (en) * 1930-01-29 1933-02-23 Titanium Pigment Company Inc Process for the production of titanium composition pigments
DE648518C (en) * 1934-03-12 1937-08-04 I G Farbenindustrie Akt Ges Process for the production of non-chalking white pigments

Similar Documents

Publication Publication Date Title
DE1963128A1 (en) Process for cleaning and agglomeration of pyrite exhausts
DE831453C (en) Copper alloys
DE1202422B (en) Titanium dioxide pigments
DE955887C (en) Manufacture of titanium dioxide or titanium dioxide composition pigments
DE2554651C2 (en) Process for separating radioactive contaminants from baddeleyite
DE648518C (en) Process for the production of non-chalking white pigments
DEW0007598MA (en)
DE143517C (en)
DE744937C (en) Production of pure white zinc white from zinc lye containing magnesium and calcium
DE607198C (en) Purifying disodium phosphate
DE1303521C2 (en) TANNING PROCESS USING BASIC ALUMINUM-CHROME (III) COMPLEX COMPLEXES
DE902163C (en) Process for the production of iron oxide pigments
DE451117C (en) Process for the digestion of alumina minerals
DE688152C (en) Saltpeter baths resistant to decomposition
DE481731C (en) Process for the precipitation of zinc oxide hydrate suitable for the rubber industry
DE334432C (en) Process for the processing of zinc vitriol and zinc solutions containing sulfate on protective zinc oxide
DE392952C (en) Process for the production of a water non-attractive mixed fertilizer from calcium nitrate
AT230269B (en) Process for the production of ceramic stains containing zinc oxide
DE591767C (en) Process for cleaning and de-acidifying vegetable drying oils for painting technology
DE675686C (en) Manufacture of titanium group pigments
DE831607C (en) Process for the extraction of metals from residues containing arsenic
DE652445C (en) Process for the production of white lead
DE618868C (en) Process for the production of white zinc paints
DE854208C (en) Process for the production of iron-free silica from iron-containing slags
DE528146C (en) Representation of chromium compounds