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ES471032A1 - Un procedimiento para el tratamiento de soluciones acuosas de acido sulfurico, que contienen sulfato ferroso disuelto - Google Patents

Un procedimiento para el tratamiento de soluciones acuosas de acido sulfurico, que contienen sulfato ferroso disuelto

Info

Publication number
ES471032A1
ES471032A1 ES471032A ES471032A ES471032A1 ES 471032 A1 ES471032 A1 ES 471032A1 ES 471032 A ES471032 A ES 471032A ES 471032 A ES471032 A ES 471032A ES 471032 A1 ES471032 A1 ES 471032A1
Authority
ES
Spain
Prior art keywords
zone
sulphuric acid
solution
sulphate
grams
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
ES471032A
Other languages
English (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.)
Tioxide Group Ltd
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 ES471032A1 publication Critical patent/ES471032A1/es
Expired 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
    • 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)

Abstract

Un procedimiento para el tratamiento de soluciones acuosas de ácido sulfúrico, que contienen sulfato ferroso disuelto, que comprende formar dicha solución que contiene 140 a 220 gramos/litro de ácido sulfúrico libre en una primera zona; ajustar el valor del pH de la solución en esta zona a uno en el intervalo de 3 a 4 mediante la adición de carbonato cálcico finamente dividido, precipitando con ello sulfato cálcico; hacer pasar la suspensión así producida a una segunda zona; añadir a la segunda zona una solución acuosa de ácido sulfúrico que contiene 3 a 80 gramos/litro de ácido sulfúrico libre; ajustar el valor de pH de la mezcla en la segunda zona a uno en el intervalo de 3,5 a 6 mediante la adición de carbono cálcico finamente dividido precipitando con ello sulfato cálcico y después recuperar de la segunda zona sulfato cálcico adecuado para empleo en la fabricación de cartón-yeso.
ES471032A 1977-09-16 1978-06-22 Un procedimiento para el tratamiento de soluciones acuosas de acido sulfurico, que contienen sulfato ferroso disuelto Expired ES471032A1 (es)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
ES471032A1 true ES471032A1 (es) 1979-02-16

Family

ID=10404814

Family Applications (1)

Application Number Title Priority Date Filing Date
ES471032A Expired ES471032A1 (es) 1977-09-16 1978-06-22 Un procedimiento para el tratamiento de soluciones acuosas de acido sulfurico, que contienen sulfato ferroso disuelto

Country Status (12)

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

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
AU639192B2 (en) * 1990-07-20 1993-07-15 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
FI964907L (fi) * 1995-01-31 1996-12-09 Compania General Yesera S A Menetelmä kalsiumsulfaattihydraattitäyteaineen aikaansaamiseksi neulanmuotoisten kiteiden muodossa ja sen käyttö paperiteollisuudessa
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
NL177105B (nl) 1985-03-01
IT7851046A0 (it) 1978-09-11
DE2829382A1 (de) 1979-03-29
GB1573187A (en) 1980-08-20
JPS5447895A (en) 1979-04-14
US4208393A (en) 1980-06-17
BE870410A (fr) 1979-03-12
CA1099483A (en) 1981-04-21
NL7806876A (nl) 1979-03-20
IT1157177B (it) 1987-02-11
AU517883B2 (en) 1981-09-03
AU3689778A (en) 1979-12-13
NL177105C (nl) 1985-08-01
ZA783253B (en) 1980-01-30
FR2403298B1 (es) 1984-06-22
FR2403298A1 (fr) 1979-04-13

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