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GB1218601A - Disposal of waste liquors from pickling processes - Google Patents

Disposal of waste liquors from pickling processes

Info

Publication number
GB1218601A
GB1218601A GB8768A GB8768A GB1218601A GB 1218601 A GB1218601 A GB 1218601A GB 8768 A GB8768 A GB 8768A GB 8768 A GB8768 A GB 8768A GB 1218601 A GB1218601 A GB 1218601A
Authority
GB
United Kingdom
Prior art keywords
disposal
waste liquors
pickling processes
precipitate
neutralization
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
GB8768A
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.)
UNIFLOC Ltd
Original Assignee
UNIFLOC 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 UNIFLOC Ltd filed Critical UNIFLOC Ltd
Priority to GB8768A priority Critical patent/GB1218601A/en
Publication of GB1218601A publication Critical patent/GB1218601A/en
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
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
    • 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
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/529—Processes or devices for preparing lime water
    • 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
    • C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
    • C02F1/62—Heavy metal compounds
    • C02F1/64—Heavy metal compounds of iron or manganese
    • C02F1/645—Devices for iron precipitation and treatment by air
    • 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
    • C02F1/74—Treatment of water, waste water, or sewage by oxidation with air
    • 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
    • C02F2101/203—Iron or iron compound
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/16—Nature of the water, waste water, sewage or sludge to be treated from metallurgical processes, i.e. from the production, refining or treatment of metals, e.g. galvanic wastes

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Removal Of Specific Substances (AREA)

Abstract

1,218,601. Treating pickle liquors. UNIFLOC Ltd. and J. O. SAMUEL. 1 Jan., 1968, No. 87/68. Headings C1A and C1C. Liquor containing hydrochloric acid and FeCl 2 is treated by a process comprising adding finely divided carbonate of lime in an amount sufficient at least to neutralize all the uncombined acid and to precipitate substantially all the dissolved iron, and aerating the liquor during neutralization and precipitation to form a precipitate of an insoluble hydrated ferric oxide. Modifications of the neutralization process are described.
GB8768A 1968-01-01 1968-01-01 Disposal of waste liquors from pickling processes Expired GB1218601A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8768A GB1218601A (en) 1968-01-01 1968-01-01 Disposal of waste liquors from pickling processes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8768A GB1218601A (en) 1968-01-01 1968-01-01 Disposal of waste liquors from pickling processes

Publications (1)

Publication Number Publication Date
GB1218601A true GB1218601A (en) 1971-01-06

Family

ID=9698188

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8768A Expired GB1218601A (en) 1968-01-01 1968-01-01 Disposal of waste liquors from pickling processes

Country Status (1)

Country Link
GB (1) GB1218601A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2382406A1 (en) * 1977-03-02 1978-09-29 Voest Ag Neutralising acid contg. liquors esp. metal cleaning liquors - using chalk of particle size below a half milli-meter
DE3004718A1 (en) * 1979-02-09 1980-08-14 Pfizer SYNTHETIC, RHOMBOEDRIC MAGNETITE PIGMENT
US4382822A (en) 1979-09-14 1983-05-10 Pfizer Inc. Synthetic rhombohedral magnetite pigment
EP0080996A2 (en) * 1981-12-02 1983-06-08 VOEST-ALPINE Aktiengesellschaft Process for recovering metals from acid solutions of their salts
EP0092108A2 (en) * 1982-04-15 1983-10-26 Süd-Chemie Ag Process for the treatment of acid waste water containing aluminium and iron
EP0107204A1 (en) * 1982-10-27 1984-05-02 Sydkraft Ab A method for neutralization of acidified water-courses

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2382406A1 (en) * 1977-03-02 1978-09-29 Voest Ag Neutralising acid contg. liquors esp. metal cleaning liquors - using chalk of particle size below a half milli-meter
DE3004718A1 (en) * 1979-02-09 1980-08-14 Pfizer SYNTHETIC, RHOMBOEDRIC MAGNETITE PIGMENT
FR2448559A1 (en) * 1979-02-09 1980-09-05 Pfizer SYNTHETIC RHOMBOEDRIC MAGNETITE PIGMENT AND PROCESS FOR OBTAINING SAME
US4382822A (en) 1979-09-14 1983-05-10 Pfizer Inc. Synthetic rhombohedral magnetite pigment
EP0080996A2 (en) * 1981-12-02 1983-06-08 VOEST-ALPINE Aktiengesellschaft Process for recovering metals from acid solutions of their salts
EP0080996A3 (en) * 1981-12-02 1985-11-21 VOEST-ALPINE Aktiengesellschaft Process for recovering metals from acid solutions of their salts
EP0092108A2 (en) * 1982-04-15 1983-10-26 Süd-Chemie Ag Process for the treatment of acid waste water containing aluminium and iron
EP0092108A3 (en) * 1982-04-15 1985-05-22 Sud-Chemie Ag Process for the treatment of acid waste water containing aluminium and iron
EP0107204A1 (en) * 1982-10-27 1984-05-02 Sydkraft Ab A method for neutralization of acidified water-courses

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