GB407674A - Process for the manufacture of composite titanium pigments - Google Patents

Process for the manufacture of composite titanium pigments

Info

Publication number
GB407674A
GB407674A GB23199/32A GB2319932A GB407674A GB 407674 A GB407674 A GB 407674A GB 23199/32 A GB23199/32 A GB 23199/32A GB 2319932 A GB2319932 A GB 2319932A GB 407674 A GB407674 A GB 407674A
Authority
GB
United Kingdom
Prior art keywords
titanium
fillers
solution
titanium oxide
sulphate
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
GB23199/32A
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
Publication of GB407674A publication Critical patent/GB407674A/en
Expired legal-status Critical Current

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)
  • Pigments, Carbon Blacks, Or Wood Stains (AREA)

Abstract

Composite titanium pigments are produced by heating titanium sulphate solutions in the presence of fillers, such as silica or silicic acid, barium or calcium sulphate, and of titanium oxide nuclei prepared as described in Specification 388,978 by heating solutions containing 30--60 grams of titanium oxide and 5--60 grams of sulphuric acid per litre. Alternatively, the titanium sulphate solution may be heated with the filling materials till 1--5 per cent of the titanium oxide is precipitated, and the precipitation is then continued in the presence of nuclei formed from a basic solution (that is, one in which the ratio of titanium to sulphuric acid is greater than in the formula Ti(SO4)2), or, when finely-divided fillers are to be used, part of such a basic solution is heated till 3 per cent of the titanium is precipitated, the fillers and the remainder of the solution are added, and the precipitation is then completed. Specification 387,720 also is referred to.
GB23199/32A 1931-08-19 1932-08-18 Process for the manufacture of composite titanium pigments Expired GB407674A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE407674X 1931-08-19

Publications (1)

Publication Number Publication Date
GB407674A true GB407674A (en) 1934-03-19

Family

ID=6422207

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23199/32A Expired GB407674A (en) 1931-08-19 1932-08-18 Process for the manufacture of composite titanium pigments

Country Status (1)

Country Link
GB (1) GB407674A (en)

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