IT1062108B - Trattamento di fanghi fosfatici - Google Patents

Trattamento di fanghi fosfatici

Info

Publication number
IT1062108B
IT1062108B IT25014/76A IT2501476A IT1062108B IT 1062108 B IT1062108 B IT 1062108B IT 25014/76 A IT25014/76 A IT 25014/76A IT 2501476 A IT2501476 A IT 2501476A IT 1062108 B IT1062108 B IT 1062108B
Authority
IT
Italy
Prior art keywords
phosphatic
sludge treatment
sludge
treatment
phosphatic sludge
Prior art date
Application number
IT25014/76A
Other languages
English (en)
Italian (it)
Original Assignee
Metallgesellschaft Ag
Parker Ste Continentale
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 Metallgesellschaft Ag, Parker Ste Continentale filed Critical Metallgesellschaft Ag
Application granted granted Critical
Publication of IT1062108B publication Critical patent/IT1062108B/it

Links

Classifications

    • 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
    • C01B25/37—Phosphates of heavy metals
    • 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
    • C01B25/30—Alkali metal phosphates
    • C01B25/305—Preparation from phosphorus-containing compounds by alkaline treatment
    • C01B25/306—Preparation from phosphorus-containing compounds by alkaline treatment from phosphates
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
    • C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
    • C23C22/07—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing phosphates
    • C23C22/08—Orthophosphates
    • C23C22/12—Orthophosphates containing zinc cations
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Manufacture And Refinement Of Metals (AREA)
IT25014/76A 1975-07-05 1976-07-05 Trattamento di fanghi fosfatici IT1062108B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB28414/75A GB1545515A (en) 1975-07-05 1975-07-05 Treatment of phosphate sludges

Publications (1)

Publication Number Publication Date
IT1062108B true IT1062108B (it) 1983-06-25

Family

ID=10275251

Family Applications (1)

Application Number Title Priority Date Filing Date
IT25014/76A IT1062108B (it) 1975-07-05 1976-07-05 Trattamento di fanghi fosfatici

Country Status (5)

Country Link
DE (1) DE2629776A1 (US07754267-20100713-C00021.png)
FR (1) FR2317221A1 (US07754267-20100713-C00021.png)
GB (1) GB1545515A (US07754267-20100713-C00021.png)
IT (1) IT1062108B (US07754267-20100713-C00021.png)
SE (1) SE7607635L (US07754267-20100713-C00021.png)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4032956A1 (de) * 1990-10-18 1992-04-23 Henkel Kgaa Verfahren zum recycling von phospatierschlamm
DE4117716A1 (de) * 1991-05-30 1992-12-03 Metallgesellschaft Ag Zinkentfernung aus phosphatschlaemmen
DE4316240C2 (de) * 1992-05-26 2001-05-17 Volkswagen Ag Verfahren zum NE-Metallrecycling in Phosphatierbädern
CA2114297A1 (en) * 1993-01-29 1994-07-30 Tadashi Nishino Method for dissolving sludge and recovering constituents therefrom
CN1309667C (zh) * 2004-01-20 2007-04-11 郑恒昌 金属表面磷化处理制程的废污泥回收法
CN110498402A (zh) * 2019-09-25 2019-11-26 龚典局 一种含磷废酸综合利用方法
CN114014289B (zh) * 2021-10-30 2023-05-02 南昌大学 一种磷酸铁废料提纯的方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1018850B (de) * 1955-12-31 1957-11-07 Albert Ag Chem Werke Verfahren zur Entkalkung von Kalk, Tonerde und Eisen enthaltenden Phosphaten
JPS5519316B2 (US07754267-20100713-C00021.png) * 1974-02-27 1980-05-24

Also Published As

Publication number Publication date
GB1545515A (en) 1979-05-10
SE7607635L (sv) 1977-01-06
FR2317221B1 (US07754267-20100713-C00021.png) 1978-09-01
FR2317221A1 (fr) 1977-02-04
DE2629776A1 (de) 1977-01-20

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