BR9007364A - PROCESS FOR THE PRODUCTION OF ACID-SOLUBLE TITANIA, AND, ACID-SOLUBLE TITANIA - Google Patents

PROCESS FOR THE PRODUCTION OF ACID-SOLUBLE TITANIA, AND, ACID-SOLUBLE TITANIA

Info

Publication number
BR9007364A
BR9007364A BR909007364A BR9007364A BR9007364A BR 9007364 A BR9007364 A BR 9007364A BR 909007364 A BR909007364 A BR 909007364A BR 9007364 A BR9007364 A BR 9007364A BR 9007364 A BR9007364 A BR 9007364A
Authority
BR
Brazil
Prior art keywords
mineral
iron
magnesium
acid
manganese
Prior art date
Application number
BR909007364A
Other languages
Portuguese (pt)
Inventor
Michael John Hollitt
Brian Anthony O'brien
Original Assignee
Wimmera Ind Mineraes Pty Ltd
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=3773906&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=BR9007364(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Wimmera Ind Mineraes Pty Ltd filed Critical Wimmera Ind Mineraes Pty Ltd
Publication of BR9007364A publication Critical patent/BR9007364A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B34/00—Obtaining refractory metals
    • C22B34/10—Obtaining titanium, zirconium or hafnium
    • C22B34/12—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08
    • C22B34/1236—Obtaining titanium or titanium compounds from ores or scrap by metallurgical processing; preparation of titanium compounds from other titanium compounds see C01G23/00 - C01G23/08 obtaining titanium or titanium compounds from ores or scrap by wet processes, e.g. by leaching

Abstract

The specification discloses a method of making acid digestible titania. The method comprises the steps of: (1) adding a magnesium or manganese compound to a titaniferous mineral if the content of manganese and magnesium in the mineral is insufficient; (2) heating the mineral in the presence of a reductant for a sufficient length of time and at a sufficiently high temperature to permit the reduction of iron containing compounds to metallic iron and enable titania present to convert to an acid digestible form; (3) cooling the mineral; and (4) separating iron from the mineral by means of an aqueous aeration step. The titaniferous mineral contains insufficient magnesium and manganese if the following expression is not satisfied: 1.98a + 1.14b/d >/= 0.08 where a represents the percentage by weight of MgO contained in the mineral, (b) represents the percentage by weight fo MnO contained in the mineral; and (d) represents the percentage by weight of TiO2 contained in the mineral. The magnesium or manganese compound is either an oxide or a compound that is capable of converting to an oxide under reaction conditions. An aqueous aeration technique described in the specification involves the use of a sequesterant that is capable of sequestering iron from the mineral without significantly lowering the local pH while at the same time permitting the formation of an oxide of iron at a point away from the mineral. An example of such a sequesterant is citric acid.
BR909007364A 1989-05-11 1990-05-10 PROCESS FOR THE PRODUCTION OF ACID-SOLUBLE TITANIA, AND, ACID-SOLUBLE TITANIA BR9007364A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPJ412289 1989-05-11
PCT/AU1990/000190 WO1990013614A1 (en) 1989-05-11 1990-05-10 Production of acid soluble titania

Publications (1)

Publication Number Publication Date
BR9007364A true BR9007364A (en) 1992-05-12

Family

ID=3773906

Family Applications (1)

Application Number Title Priority Date Filing Date
BR909007364A BR9007364A (en) 1989-05-11 1990-05-10 PROCESS FOR THE PRODUCTION OF ACID-SOLUBLE TITANIA, AND, ACID-SOLUBLE TITANIA

Country Status (10)

Country Link
EP (1) EP0475953B1 (en)
AT (1) ATE110698T1 (en)
AU (1) AU626682B2 (en)
BR (1) BR9007364A (en)
CA (1) CA2055428C (en)
DE (1) DE69012117T2 (en)
DK (1) DK0475953T3 (en)
ES (1) ES2061032T3 (en)
WO (1) WO1990013614A1 (en)
ZA (1) ZA903563B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI104965B (en) * 1997-04-03 2000-05-15 Kemira Pigments Oy Process for the preparation of titanium dioxide

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU416432B1 (en) * 1966-04-29 1971-08-20 WESTERN TITANIUN M. L. and COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANIZATION Production of anosovite from titaniferous minerals

Also Published As

Publication number Publication date
AU626682B2 (en) 1992-08-06
AU5644890A (en) 1990-11-29
ZA903563B (en) 1991-02-27
EP0475953B1 (en) 1994-08-31
ATE110698T1 (en) 1994-09-15
EP0475953A1 (en) 1992-03-25
DE69012117D1 (en) 1994-10-06
ES2061032T3 (en) 1994-12-01
DE69012117T2 (en) 1995-05-18
CA2055428A1 (en) 1990-11-12
DK0475953T3 (en) 1995-01-09
CA2055428C (en) 2001-01-23
WO1990013614A1 (en) 1990-11-15
EP0475953A4 (en) 1992-12-02

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Legal Events

Date Code Title Description
FB36 Technical and formal requirements: requirement - article 36 of industrial property law
FF Decision: intention to grant
FG9A Patent or certificate of addition granted
B21A Patent or certificate of addition expired [chapter 21.1 patent gazette]

Free format text: PATENTE EXTINTA EM 10/05/2010