DE542334C - Process for the hydrolytic splitting of acidic titanium sulphate solutions - Google Patents
Process for the hydrolytic splitting of acidic titanium sulphate solutionsInfo
- Publication number
- DE542334C DE542334C DED51742D DED0051742D DE542334C DE 542334 C DE542334 C DE 542334C DE D51742 D DED51742 D DE D51742D DE D0051742 D DED0051742 D DE D0051742D DE 542334 C DE542334 C DE 542334C
- Authority
- DE
- Germany
- Prior art keywords
- sulphate solutions
- acidic titanium
- titanium sulphate
- solutions
- hydrolytic splitting
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G23/00—Compounds of titanium
- C01G23/04—Oxides; Hydroxides
- C01G23/047—Titanium dioxide
- C01G23/053—Producing by wet processes, e.g. hydrolysing titanium salts
- C01G23/0532—Producing by wet processes, e.g. hydrolysing titanium salts by hydrolysing sulfate-containing salts
- C01G23/0534—Producing by wet processes, e.g. hydrolysing titanium salts by hydrolysing sulfate-containing salts in the presence of seeds
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Description
Verfahren zur hydrolytischen Spaltung von sauren Titansulfatlösungen Bei der hydrolytischen Spaltung von sauren Titansulfatlösungen bei höheren Temperaturen unter Druck kann die Ausscheidung der Titansäure aus den Lösungen durch den Zusatz einer gewissen Titansäuremenge, die man bei einem vorangegangenen Arbeitsgang gewonnen hat, beschleunigt werden. Die Anwesenheit von Titansäure hat auch noch den Vorteil, daß das Produkt bei den verschiedenen einzelnen Druckspaltungen gleichmäßiger ausfällt, gut kristallin ist und daher besser und leichter zu wertvollen Titanpigmenten verarbeitet werden kann.Process for the hydrolytic cleavage of acidic titanium sulphate solutions During the hydrolytic cleavage of acidic titanium sulphate solutions at higher temperatures under pressure, the titanic acid can be eliminated from the solutions by the addition a certain amount of titanium acid obtained in a previous operation has to be accelerated. The presence of titanic acid also has the advantage that the product turns out to be more even with the various individual pressure gaps, is well crystalline and therefore processed better and more easily into valuable titanium pigments can be.
Man hat bereits vorgeschlagen, die hydrolytische Spaltung schwefelsaurer Titanlösungen bei Gegenwart fein gemahlener fertiger Titansäure durchzuführen, um die Poren des letzteren mit dem beim Erhitzen der Mischung ausfallenden Titandioxyd zu verschließen. Von diesem bekannten Verfahren unterscheidet sich die einen ganz anderen Zweck verfolgende vorliegende Erfindung zunächst durch die Verwendung einer gefällten und nicht weiterbehandelten Titansäure und ferner durch das Mengenverhältnis zwischen der zugesetzten und der auszufällenden Titansäure insofern, als bei dem vorliegenden Verfahren die zugesetzte Titansäuremenge ganz erheblich geringer ist als bei dem obenerwähnten Verfahren.It has already been proposed that the hydrolytic cleavage of sulfuric acid Titanium solutions in the presence of finely ground finished titanic acid to carry out the pores of the latter with the titanium dioxide precipitated when the mixture is heated to close. One of them is completely different from this known method The present invention pursues another purpose initially through the use of a precipitated and untreated titanic acid and also by the quantitative ratio between the added and the titanic acid to be precipitated insofar as in the case of present process, the amount of titanium acid added is considerably lower than the above-mentioned method.
Man verfährt am zweckmäßigsten so, daß man einen kleinen Teil des Autoklaveninhaltes einer vorhergehenden Spaltung in dem Autoklaven zurückläßt, ihn mit neuer Titanlösung fällt und die neue Spaltung mit diesem Gemisch durchführt. Es genügt, etwa i bis io% des Autoklaveninhaltes zurückzulassen, um den günstigeren Verlauf der Spaltung zu erzielen.It is most expedient to proceed in such a way that a small part of the Leaves autoclave contents of a previous cleavage in the autoclave, him falls with new titanium solution and carries out the new cleavage with this mixture. It is sufficient to leave about i to io% of the contents of the autoclave in order to get the cheaper one To achieve the course of the split.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DED51742D DE542334C (en) | 1926-11-23 | 1926-11-23 | Process for the hydrolytic splitting of acidic titanium sulphate solutions |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DED51742D DE542334C (en) | 1926-11-23 | 1926-11-23 | Process for the hydrolytic splitting of acidic titanium sulphate solutions |
Publications (1)
Publication Number | Publication Date |
---|---|
DE542334C true DE542334C (en) | 1932-01-22 |
Family
ID=7053621
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DED51742D Expired DE542334C (en) | 1926-11-23 | 1926-11-23 | Process for the hydrolytic splitting of acidic titanium sulphate solutions |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE542334C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1049026B (en) * | 1952-04-23 | 1959-01-22 | Titan Gmbh | Process for the production of rutile titanium dioxide-alkaline earth sulfate composition pigments |
-
1926
- 1926-11-23 DE DED51742D patent/DE542334C/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1049026B (en) * | 1952-04-23 | 1959-01-22 | Titan Gmbh | Process for the production of rutile titanium dioxide-alkaline earth sulfate composition pigments |
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