FR2329592A1 - METHOD AND APPARATUS FOR GROWTH OF LARGE GRAIN GYPSUM AND MAGNETITE - Google Patents

METHOD AND APPARATUS FOR GROWTH OF LARGE GRAIN GYPSUM AND MAGNETITE

Info

Publication number
FR2329592A1
FR2329592A1 FR7441016A FR7441016A FR2329592A1 FR 2329592 A1 FR2329592 A1 FR 2329592A1 FR 7441016 A FR7441016 A FR 7441016A FR 7441016 A FR7441016 A FR 7441016A FR 2329592 A1 FR2329592 A1 FR 2329592A1
Authority
FR
France
Prior art keywords
magnetite
growth
large grain
gypsum
grain gypsum
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.)
Granted
Application number
FR7441016A
Other languages
French (fr)
Other versions
FR2329592B1 (en
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.)
Kronos Titan GmbH
Original Assignee
Kronos Titan GmbH
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 Kronos Titan GmbH filed Critical Kronos Titan GmbH
Publication of FR2329592A1 publication Critical patent/FR2329592A1/en
Application granted granted Critical
Publication of FR2329592B1 publication Critical patent/FR2329592B1/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F11/00—Compounds of calcium, strontium, or barium
    • C01F11/46—Sulfates
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G49/00—Compounds of iron
    • C01G49/02—Oxides; Hydroxides
    • C01G49/08—Ferroso-ferric oxide [Fe3O4]
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/80—Compositional purity

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Materials For Medical Uses (AREA)
  • Compounds Of Iron (AREA)
FR7441016A 1973-12-14 1974-12-12 METHOD AND APPARATUS FOR GROWTH OF LARGE GRAIN GYPSUM AND MAGNETITE Granted FR2329592A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US42466373A 1973-12-14 1973-12-14

Publications (2)

Publication Number Publication Date
FR2329592A1 true FR2329592A1 (en) 1977-05-27
FR2329592B1 FR2329592B1 (en) 1981-01-02

Family

ID=23683420

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7441016A Granted FR2329592A1 (en) 1973-12-14 1974-12-12 METHOD AND APPARATUS FOR GROWTH OF LARGE GRAIN GYPSUM AND MAGNETITE

Country Status (9)

Country Link
BE (1) BE823350A (en)
CA (1) CA1053876A (en)
DE (1) DE2456320A1 (en)
FI (1) FI345474A (en)
FR (1) FR2329592A1 (en)
GB (1) GB1471713A (en)
IT (1) IT1027637B (en)
NL (1) NL7416286A (en)
NO (1) NO137963C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2403298A1 (en) * 1977-09-16 1979-04-13 Tioxide Group Ltd PROCESS FOR THE PRODUCTION OF CALCIUM SULPHATE
EP0014189A1 (en) * 1979-01-24 1980-08-06 VOEST-ALPINE Aktiengesellschaft Process for the working up of ferrous II sulphate heptahydrate

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1485067A (en) * 1975-07-25 1977-09-08 Tioxide Group Ltd Effluent treatment process
US5298169A (en) * 1992-08-21 1994-03-29 Kronos, Inc. Treatment of waste sulfuric acid by gypsum precipitation in a titanium dioxide process
DE19812260A1 (en) * 1998-03-20 1999-09-23 Bayer Ag Production of iron oxide pigments from dilute acid formed in manufacture of titanium dioxide
DE19812261A1 (en) 1998-03-20 1999-09-23 Bayer Ag Production of gypsum and iron oxide pigments from dilute acid formed in the manufacture of titanium dioxide
DE19812262A1 (en) * 1998-03-20 1999-09-23 Bayer Ag Production of gypsum and iron oxide pigments from dilute acid formed in the manufacture of titanium dioxide
TWI500602B (en) 2008-12-12 2015-09-21 Henry Co Llc Titanium and zirconium mixtures and emulsions for use in preparing gypsum wallboard
FR2950619B1 (en) * 2009-09-25 2011-12-09 Serge Ferlay PROCESS FOR DEULFATATION OF ACID RELEASES FROM THE TITANIUM INDUSTRY
MX2012012008A (en) 2010-04-15 2013-05-01 Henry Co Llc Mixtures and emulsions for use in providing strength to gypsum compositions.
EP2678294A4 (en) 2011-02-24 2017-03-15 Henry Company LLC Aqueous wax emulsions having reduced solids content for use in gypsum compositions and building products
CN102816931A (en) * 2012-07-27 2012-12-12 紫金矿业集团股份有限公司 Method for recovering copper and iron from copper-containing acid wastewater and producing gypsum

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2403298A1 (en) * 1977-09-16 1979-04-13 Tioxide Group Ltd PROCESS FOR THE PRODUCTION OF CALCIUM SULPHATE
EP0014189A1 (en) * 1979-01-24 1980-08-06 VOEST-ALPINE Aktiengesellschaft Process for the working up of ferrous II sulphate heptahydrate

Also Published As

Publication number Publication date
NO137963B (en) 1978-02-20
BE823350A (en) 1975-04-01
DE2456320A1 (en) 1975-06-19
CA1053876A (en) 1979-05-08
IT1027637B (en) 1978-12-20
FR2329592B1 (en) 1981-01-02
NL7416286A (en) 1975-06-17
GB1471713A (en) 1977-04-27
FI345474A (en) 1975-06-15
NO137963C (en) 1978-05-31
NO744042L (en) 1975-07-14

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Legal Events

Date Code Title Description
ST Notification of lapse