IT7851046A0 - Procedimento per la produzione disolfato di calcio in particolare da effluenti acquosi - Google Patents

Procedimento per la produzione disolfato di calcio in particolare da effluenti acquosi

Info

Publication number
IT7851046A0
IT7851046A0 IT7851046A IT5104678A IT7851046A0 IT 7851046 A0 IT7851046 A0 IT 7851046A0 IT 7851046 A IT7851046 A IT 7851046A IT 5104678 A IT5104678 A IT 5104678A IT 7851046 A0 IT7851046 A0 IT 7851046A0
Authority
IT
Italy
Prior art keywords
disulphate
calcium
procedure
production
water effluents
Prior art date
Application number
IT7851046A
Other languages
English (en)
Other versions
IT1157177B (it
Original Assignee
Tioxide Group 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
Application filed by Tioxide Group Ltd filed Critical Tioxide Group Ltd
Publication of IT7851046A0 publication Critical patent/IT7851046A0/it
Application granted granted Critical
Publication of IT1157177B publication Critical patent/IT1157177B/it

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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S423/00—Chemistry of inorganic compounds
    • Y10S423/01—Waste acid containing iron
    • Y10S423/02—Sulfuric acid

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Removal Of Specific Substances (AREA)
IT51046/78A 1977-09-16 1978-09-11 Procedimento per la produzione di solfato di calcio in particolare da effluenti acquosi IT1157177B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB38647/77A GB1573187A (en) 1977-09-16 1977-09-16 Purification process

Publications (2)

Publication Number Publication Date
IT7851046A0 true IT7851046A0 (it) 1978-09-11
IT1157177B IT1157177B (it) 1987-02-11

Family

ID=10404814

Family Applications (1)

Application Number Title Priority Date Filing Date
IT51046/78A IT1157177B (it) 1977-09-16 1978-09-11 Procedimento per la produzione di solfato di calcio in particolare da effluenti acquosi

Country Status (12)

Country Link
US (1) US4208393A (it)
JP (1) JPS5447895A (it)
AU (1) AU517883B2 (it)
BE (1) BE870410A (it)
CA (1) CA1099483A (it)
DE (1) DE2829382A1 (it)
ES (1) ES471032A1 (it)
FR (1) FR2403298A1 (it)
GB (1) GB1573187A (it)
IT (1) IT1157177B (it)
NL (1) NL177105C (it)
ZA (1) ZA783253B (it)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GR64174B (en) * 1979-11-29 1980-02-07 Gavogianis Panagiotis Method for the production of synthetic ferric oxides
JPS6186457A (ja) * 1984-10-02 1986-05-01 富士不燃建材工業株式会社 石灰石硬化体の製造方法
DE3743818C2 (de) * 1987-12-23 1995-02-23 Hoelter Heinz Verfahren zur Herstellung eines wasserauslaugungsfesten Baustoffes und seine Verwendung
CA2047432C (en) * 1990-07-20 2001-11-20 Johannes P. Maree Treatment of water
US5298169A (en) * 1992-08-21 1994-03-29 Kronos, Inc. Treatment of waste sulfuric acid by gypsum precipitation in a titanium dioxide process
WO1996023729A1 (es) * 1995-01-31 1996-08-08 Compañia General Yesera, S.A. Procedimiento para obtener una carga de sulfato de calcio dihidrato en forma de cristales aciculares y su empleo en la industria papelera
AU2003206850A1 (en) * 2002-02-21 2003-09-09 Tioxide Group Services Limited Red gypsum in civil engineering applications
EP2371769A1 (en) * 2006-06-28 2011-10-05 Sachtleben Pigments Oy Method of treating a precipitate comprising iron(ii)sulphate monohydrate, a plant, granular material and its uses
ES2650495T3 (es) * 2014-07-17 2018-01-18 Omya International Ag Tratamiento de aguas residuales ácidas
CN109368604A (zh) * 2018-10-24 2019-02-22 四川大学 一种利用相平衡原理通过生成结晶水合物进行钛白废酸浓缩的工艺

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2197003A (en) * 1937-11-18 1940-04-16 Glidden Co Process for making pigments
FR1069146A (fr) * 1951-12-06 1954-07-05 Titan Co Procédé d'obtention et de récupération de gypse ou produits analogues à partir de liqueurs résiduaires d'acide sulfurique et produits nouveaux obtenus
US2822242A (en) * 1954-02-10 1958-02-04 Nat Lead Co Manufacture of calcium sulphate anhydrite from gypsum, calcium carbonate and sulfuric acid
US3375066A (en) * 1963-08-24 1968-03-26 Yawata Chem Ind Co Ltd Process for the continuous production of gypsum and iron oxide from waste sulfuric acid pickle liquor and a calcium compound
CA1053876A (en) * 1973-12-14 1979-05-08 Arthur A. Bellinger Method and means of growing coarse gypsum and magnetite
JPS5146679A (en) * 1974-10-19 1976-04-21 Uchida Yuatsu Kiki Kogyo Kk 2 ryuryogoryukairosochi
GB1485067A (en) * 1975-07-25 1977-09-08 Tioxide Group Ltd Effluent treatment process
JPH10279473A (ja) * 1997-03-31 1998-10-20 Lion Corp フットケア用シート剤

Also Published As

Publication number Publication date
JPS5447895A (en) 1979-04-14
NL177105B (nl) 1985-03-01
GB1573187A (en) 1980-08-20
US4208393A (en) 1980-06-17
FR2403298B1 (it) 1984-06-22
NL7806876A (nl) 1979-03-20
ES471032A1 (es) 1979-02-16
DE2829382A1 (de) 1979-03-29
IT1157177B (it) 1987-02-11
FR2403298A1 (fr) 1979-04-13
AU3689778A (en) 1979-12-13
AU517883B2 (en) 1981-09-03
ZA783253B (en) 1980-01-30
CA1099483A (en) 1981-04-21
NL177105C (nl) 1985-08-01
BE870410A (fr) 1979-03-12

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Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19930723