FR2266662B1 - - Google Patents

Info

Publication number
FR2266662B1
FR2266662B1 FR7510118A FR7510118A FR2266662B1 FR 2266662 B1 FR2266662 B1 FR 2266662B1 FR 7510118 A FR7510118 A FR 7510118A FR 7510118 A FR7510118 A FR 7510118A FR 2266662 B1 FR2266662 B1 FR 2266662B1
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
FR7510118A
Other languages
French (fr)
Other versions
FR2266662A1 (enExample
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.)
Occidental Petroleum Corp
Original Assignee
Occidental Petroleum Corp
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 Occidental Petroleum Corp filed Critical Occidental Petroleum Corp
Publication of FR2266662A1 publication Critical patent/FR2266662A1/fr
Application granted granted Critical
Publication of FR2266662B1 publication Critical patent/FR2266662B1/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
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23K—FODDER
    • A23K20/00—Accessory food factors for animal feeding-stuffs
    • A23K20/20—Inorganic substances, e.g. oligoelements
    • A23K20/26—Compounds containing phosphorus
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B25/00—Phosphorus; Compounds thereof
    • C01B25/16—Oxyacids of phosphorus; Salts thereof
    • C01B25/18—Phosphoric acid
    • C01B25/22—Preparation by reacting phosphate-containing material with an acid, e.g. wet process
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B25/00—Phosphorus; Compounds thereof
    • C01B25/16—Oxyacids of phosphorus; Salts thereof
    • C01B25/18—Phosphoric acid
    • C01B25/22—Preparation by reacting phosphate-containing material with an acid, e.g. wet process
    • C01B25/222—Preparation by reacting phosphate-containing material with an acid, e.g. wet process with sulfuric acid, a mixture of acids mainly consisting of sulfuric acid or a mixture of compounds forming it in situ, e.g. a mixture of sulfur dioxide, water and oxygen
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B25/00—Phosphorus; Compounds thereof
    • C01B25/16—Oxyacids of phosphorus; Salts thereof
    • C01B25/26—Phosphates
    • C01B25/32—Phosphates of magnesium, calcium, strontium, or barium
    • C01B25/328—Defluorination during or after the preparation
    • 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
    • C01F11/20—Halides
    • C01F11/22—Fluorides
    • 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
    • C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
    • 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
    • C02F1/583—Treatment of water, waste water, or sewage by removing specified dissolved compounds by removing fluoride or fluorine compounds
    • 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
    • C02F2101/105—Phosphorus compounds
    • 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
    • C02F2101/12—Halogens or halogen-containing compounds
    • C02F2101/14—Fluorine or fluorine-containing compounds
    • 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
    • C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/06—Controlling or monitoring parameters in water treatment pH

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Hydrology & Water Resources (AREA)
  • Polymers & Plastics (AREA)
  • Geology (AREA)
  • Animal Husbandry (AREA)
  • Zoology (AREA)
  • Food Science & Technology (AREA)
  • Removal Of Specific Substances (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
FR7510118A 1974-04-03 1975-04-01 Expired FR2266662B1 (enExample)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US45756574A 1974-04-03 1974-04-03

Publications (2)

Publication Number Publication Date
FR2266662A1 FR2266662A1 (enExample) 1975-10-31
FR2266662B1 true FR2266662B1 (enExample) 1981-02-27

Family

ID=23817225

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7510118A Expired FR2266662B1 (enExample) 1974-04-03 1975-04-01

Country Status (6)

Country Link
JP (1) JPS50142496A (enExample)
BE (1) BE827305A (enExample)
CA (1) CA1045258A (enExample)
FR (1) FR2266662B1 (enExample)
GB (1) GB1505146A (enExample)
NL (1) NL7503991A (enExample)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2533128A1 (de) * 1975-07-24 1977-02-10 Bayer Ag Verfahren zur herstellung von synthetischem flusspat
JPS5346496A (en) * 1976-10-12 1978-04-26 Toyo Soda Mfg Co Ltd Treating method for waste liquor discharged from wet process purification of phosphoric acid
JPS5421990A (en) * 1977-07-21 1979-02-19 Central Glass Co Ltd Process for removing phosphorus compnent in fluorite
US4374810A (en) * 1978-06-01 1983-02-22 Agrico Chemical Company Recovery of fluorine from pond water of wet process phosphoric acid plants and recycling of defluorinated water
US4233281A (en) * 1978-06-09 1980-11-11 Occidental Chemical Company Recovery of hydrogen fluoride from metallic fluoride salts
JPS5645826A (en) * 1979-09-20 1981-04-25 Mitsui Toatsu Chem Inc Recovering and treating method for water-containing cake in wet process phosphoric acid manufacturing plant
JP4878098B2 (ja) * 2001-09-12 2012-02-15 奥多摩工業株式会社 フッ素含有排水の処理方法
CA2463361A1 (en) * 2001-10-25 2003-05-01 Imc Global Operations, Inc. Purification of phosphoric acid plant pond water
US6758976B2 (en) 2001-10-25 2004-07-06 Imc Global Operations Inc. Simplified purification of phosphoric acid plant pond water
CN102947229A (zh) * 2010-05-18 2013-02-27 奥斯特拉营养康复技术有限公司 含磷酸盐的废水的处理
CN102328984B (zh) * 2011-08-11 2013-08-14 四川龙蟒钛业股份有限公司 磷化工废水的处理方法
JP5834750B2 (ja) * 2011-10-13 2015-12-24 セントラル硝子株式会社 フルオロリン酸化合物を含む廃水の処理方法
JP6024910B2 (ja) * 2013-03-08 2016-11-16 三菱マテリアル株式会社 フッ化カルシウムの回収方法とその回収設備

Also Published As

Publication number Publication date
BE827305A (fr) 1975-07-16
FR2266662A1 (enExample) 1975-10-31
JPS50142496A (enExample) 1975-11-17
CA1045258A (en) 1978-12-26
NL7503991A (nl) 1975-10-07
GB1505146A (en) 1978-03-30

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Legal Events

Date Code Title Description
ST Notification of lapse