FR2261984B1 - - Google Patents

Info

Publication number
FR2261984B1
FR2261984B1 FR7505301A FR7505301A FR2261984B1 FR 2261984 B1 FR2261984 B1 FR 2261984B1 FR 7505301 A FR7505301 A FR 7505301A FR 7505301 A FR7505301 A FR 7505301A FR 2261984 B1 FR2261984 B1 FR 2261984B1
Authority
FR
France
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
FR7505301A
Other versions
FR2261984A1 (fr
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.)
Armco Inc
Original Assignee
Armco Inc
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 Armco Inc filed Critical Armco Inc
Publication of FR2261984A1 publication Critical patent/FR2261984A1/fr
Application granted granted Critical
Publication of FR2261984B1 publication Critical patent/FR2261984B1/fr
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00—Multistage treatment of water, waste water or sewage
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/48—Treatment of water, waste water, or sewage with magnetic or electric fields
    • C02F1/488—Treatment of water, waste water, or sewage with magnetic or electric fields for separation of magnetic materials, e.g. magnetic flocculation
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/20—Heavy metals or heavy metal compounds
    • 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
    • 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
FR7505301A 1974-02-22 1975-02-20 Expired FR2261984B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US445315A US3927173A (en) 1974-02-22 1974-02-22 Treatment of acid waste waters to produce ferromagnetic sludges

Publications (2)

Publication Number Publication Date
FR2261984A1 FR2261984A1 (fr) 1975-09-19
FR2261984B1 true FR2261984B1 (fr) 1979-09-28

Family

ID=23768446

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7505301A Expired FR2261984B1 (fr) 1974-02-22 1975-02-20

Country Status (11)

Country Link
US (1) US3927173A (fr)
JP (1) JPS50121163A (fr)
BR (1) BR7500974A (fr)
DE (1) DE2507113A1 (fr)
ES (1) ES434899A1 (fr)
FR (1) FR2261984B1 (fr)
GB (1) GB1491546A (fr)
IT (1) IT1029758B (fr)
NL (1) NL7501690A (fr)
SE (1) SE7501920L (fr)
ZA (1) ZA75792B (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2556406A1 (de) * 1975-12-15 1977-06-16 Bayer Ag Verfahren zur kontinuierlichen herstellung von eisenoxidhydroxid
JPS5328954A (en) * 1976-08-31 1978-03-17 Takada Kenkiyuushiyo Yuugen Treating of drainage obtained from acid washing of steel
CA1149582A (fr) * 1979-02-09 1983-07-12 Pfizer Limited Pigment synthetique a base de magnetite rhomboedrique
US4382822A (en) * 1979-09-14 1983-05-10 Pfizer Inc. Synthetic rhombohedral magnetite pigment
US4655839A (en) * 1983-09-06 1987-04-07 E. I. Du Pont De Nemours And Company Landfillable composition from iron chloride waste treatment in molten salt
JPS60206481A (ja) * 1984-03-30 1985-10-18 Kawasaki Steel Corp ステンレス鋼酸洗廃液の回収処理方法
FR2808018B1 (fr) * 2000-04-21 2002-07-12 Sarp Ind Procede de traitement d'effluents contenant des sulfates metalliques mettant en oeuvre une etape d'addition d'ammoniac
AU2003232948B2 (en) * 2002-05-15 2009-10-15 University Of Cape Town Treatment of metal containing water by the addition of magnetite
DE10232069A1 (de) * 2002-07-16 2004-02-05 Sachtleben Chemie Gmbh Verfahren zur Herstellung von Eisenhydroxid, Eisenoxidhydrat oder Eisenoxid aus Filtersalzen der Dünnsäurerückgewinnung
CN101172727B (zh) * 2007-10-16 2010-05-19 中冶南方工程技术有限公司 盐酸废液净化处理工艺
CN105540937A (zh) * 2016-02-04 2016-05-04 卢玉柱 钢铁加工废弃危险化学品处理方法及产物钙基氢氧化亚铁
CN112978994A (zh) * 2021-02-25 2021-06-18 南京农业大学 一种不锈钢酸洗废水处理及同步合成次生铁矿物的方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1287939A (en) * 1917-12-20 1918-12-17 Magnetic Pigment Company Utilization of sulfuric-acid pickle liquors.
US2433458A (en) * 1943-03-04 1947-12-30 Infilco Inc Treatment of pickle liquor
US2662812A (en) * 1949-11-03 1953-12-15 Koppers Co Inc Regeneration of spent pickle liquor and recovery of ferrous sulfate monohydrate
US2639222A (en) * 1949-11-22 1953-05-19 Marblehead Lime Company Treatment of acid waste liquors
US3044868A (en) * 1959-09-14 1962-07-17 Puriron And Chemicals Inc Recovery of by-products of waste pickle liquor
US3164463A (en) * 1961-10-10 1965-01-05 Dravo Corp Process for handling iron laden wastes in steel mills

Also Published As

Publication number Publication date
SE7501920L (fr) 1975-08-25
GB1491546A (en) 1977-11-09
US3927173A (en) 1975-12-16
NL7501690A (nl) 1975-08-26
IT1029758B (it) 1979-03-20
FR2261984A1 (fr) 1975-09-19
JPS50121163A (fr) 1975-09-22
DE2507113A1 (de) 1975-08-28
ZA75792B (en) 1976-01-28
ES434899A1 (es) 1976-12-01
BR7500974A (pt) 1975-12-02

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Legal Events

Date Code Title Description
ST Notification of lapse