IT1157177B - Procedimento per la produzione di solfato di calcio in particolare da effluenti acquosi - Google Patents

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

Info

Publication number
IT1157177B
IT1157177B IT51046/78A IT5104678A IT1157177B IT 1157177 B IT1157177 B IT 1157177B IT 51046/78 A IT51046/78 A IT 51046/78A IT 5104678 A IT5104678 A IT 5104678A IT 1157177 B IT1157177 B IT 1157177B
Authority
IT
Italy
Prior art keywords
procedure
production
calcium sulphate
aqueous effluents
effluents
Prior art date
Application number
IT51046/78A
Other languages
English (en)
Other versions
IT7851046A0 (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 IT7851046A0 (it) 1978-09-11
IT1157177B true 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
US5156746A (en) * 1990-07-20 1992-10-20 Csir 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
EP0757971A1 (en) * 1995-01-31 1997-02-12 Compania General Yesera, S.A. Process for obtaining a charge of dihydrate calcium sulfate in the form of acicular crystals and utilization in the paper making industry
EP1474367A1 (en) * 2002-02-21 2004-11-10 Tioxide Group Services Limited Red gypsum in civil engineering applications
WO2008000887A1 (en) * 2006-06-28 2008-01-03 Sachtleben Pigments Oy Method of treating a precipitate comprising iron (ii) sulphate monohydrate, a plant, granular material and its uses
PL2975004T3 (pl) * 2014-07-17 2018-01-31 Omya Int Ag Obróbka kwasowych ścieków
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
US4208393A (en) 1980-06-17
BE870410A (fr) 1979-03-12
GB1573187A (en) 1980-08-20
JPS5447895A (en) 1979-04-14
DE2829382A1 (de) 1979-03-29
FR2403298A1 (fr) 1979-04-13
NL177105B (nl) 1985-03-01
AU517883B2 (en) 1981-09-03
ZA783253B (en) 1980-01-30
FR2403298B1 (it) 1984-06-22
AU3689778A (en) 1979-12-13
NL177105C (nl) 1985-08-01
IT7851046A0 (it) 1978-09-11
CA1099483A (en) 1981-04-21
ES471032A1 (es) 1979-02-16
NL7806876A (nl) 1979-03-20

Similar Documents

Publication Publication Date Title
IT8249249A0 (it) Procedimento per la fabbricazione di pannolini elasticizzati
NL7811529A (nl) Werkwijze ter bereiding van vezelvormig calciumsulfaat.
IT1055731B (it) Procedimento per la produzione di sospensioni acquose di carbonato di calcio
ES502199A0 (es) Procedimiento de preparacion de mezclas de polisacaridos sulfatados.
IT1102018B (it) Procedimento per la produzione di trimetilol-alcani
LU77723A1 (fr) Procede pour la preparation de suspensions aqueuses concentrees de carbonate de calcium
IT1103282B (it) Procedimento per la produzione incontinuo di laminati
IT1068268B (it) Procedimento per la produzione di urea e purificazione delle acque
MX150988A (es) Metodo mejorado para la produccion de tableros de yeso
BE873136A (fr) Procede de preparation de la vincadifformine
IT1193762B (it) Procedimento per la produzione di ammoniaca
JPS53290A (en) Method of making ureaaand or melamineeformaldehyde aqueous solution
IT1157177B (it) Procedimento per la produzione di solfato di calcio in particolare da effluenti acquosi
IT1158192B (it) Procedimento per produrre solfato di calcio
PL210918A1 (pl) Sposob wytwarzania tytanu
IT1100590B (it) Procedimento per la produzione di rifamicine
DE2860535D1 (en) Process for the production of aqueous suspensions of calcium sulphate-hemihydrate and their use
IT7823545A0 (it) Procedimento per la produzione d'acqua completamente dissalata per processi.
NO802873L (no) Fremgangsmaate for fremstilling av en vandig opploesning av kalsiumnitritt
IT1082663B (it) Procedimento per la produzione di solfato stannoso
BE865797A (fr) Procede de production d'amidines phosphorylees
IT1099446B (it) Procedimento per la produzione di tiolcarbamati
IT1079014B (it) Procedimento per la produzione di oggetti sagomati con solfato di calcio biidrato
IT7847759A0 (it) Agenti acquosi di rivestimento eprocedimento per la loro produzione
IT1157742B (it) Procedimento per la produzione di flavonglicosidi

Legal Events

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

Effective date: 19930723