GR3032536T3 - Method for selective recovery of salt components from nitrite/nitrate-containing, used hardening salts - Google Patents

Method for selective recovery of salt components from nitrite/nitrate-containing, used hardening salts

Info

Publication number
GR3032536T3
GR3032536T3 GR20000400232T GR20000400232T GR3032536T3 GR 3032536 T3 GR3032536 T3 GR 3032536T3 GR 20000400232 T GR20000400232 T GR 20000400232T GR 20000400232 T GR20000400232 T GR 20000400232T GR 3032536 T3 GR3032536 T3 GR 3032536T3
Authority
GR
Greece
Prior art keywords
nitrite
nitrate
salts
solution
degrees
Prior art date
Application number
GR20000400232T
Other languages
English (en)
Inventor
Matthias Dr Kremer
Georg Wahl
Stefan Wigger
Eberhard Prof Dr Gock
Joerg Dr Kaehler
Original Assignee
Durferrit Thermotechnik Gmbh
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 Durferrit Thermotechnik Gmbh filed Critical Durferrit Thermotechnik Gmbh
Publication of GR3032536T3 publication Critical patent/GR3032536T3/el

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
    • C01D3/00—Halides of sodium, potassium or alkali metals in general
    • C01D3/04—Chlorides
    • C01D3/08—Preparation by working up natural or industrial salt mixtures or siliceous minerals
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
    • C01D9/00—Nitrates of sodium, potassium or alkali metals in general
    • 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
    • C01F11/18—Carbonates
    • C01F11/186—Strontium or barium carbonate
    • C01F11/188—Barium carbonate
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/34—Methods of heating
    • C21D1/44—Methods of heating in heat-treatment baths
    • C21D1/46—Salt baths
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/56—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering characterised by the quenching agents
    • C21D1/607—Molten salts
    • 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)
  • Engineering & Computer Science (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Geology (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Agronomy & Crop Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Processing Of Solid Wastes (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Removal Of Specific Substances (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Treatment Of Sludge (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
GR20000400232T 1996-04-13 2000-02-02 Method for selective recovery of salt components from nitrite/nitrate-containing, used hardening salts GR3032536T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1996114645 DE19614645C1 (de) 1996-04-13 1996-04-13 Verfahren zur selektiven Wiedergewinnung der Salzbestandteile aus nitrit-nitrat-hydroxidhaltigen Härtereialtsalzen

Publications (1)

Publication Number Publication Date
GR3032536T3 true GR3032536T3 (en) 2000-05-31

Family

ID=7791194

Family Applications (1)

Application Number Title Priority Date Filing Date
GR20000400232T GR3032536T3 (en) 1996-04-13 2000-02-02 Method for selective recovery of salt components from nitrite/nitrate-containing, used hardening salts

Country Status (9)

Country Link
US (1) US5846501A (el)
EP (1) EP0801028B1 (el)
JP (1) JP4040136B2 (el)
AT (1) ATE186523T1 (el)
CA (1) CA2202416A1 (el)
DE (2) DE19614645C1 (el)
DK (1) DK0801028T3 (el)
ES (1) ES2140930T3 (el)
GR (1) GR3032536T3 (el)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19904680B4 (de) * 1999-02-04 2004-05-06 Holding Nehlsen Gmbh & Co. Kg Verfahren zur Gewinnung von Salz aus Altsalz
NZ597787A (en) 2009-06-25 2013-07-26 Imi Tami Institute Research Polyhalite imi process for kno3 production
CN101812569B (zh) * 2010-04-17 2011-04-20 付长智 铁锹热处理介质回收装置及用该装置回收介质的方法
CN102432036A (zh) * 2011-09-16 2012-05-02 江苏太阳宝新能源有限公司 用于太阳能热发电储热的废硝酸熔盐的处理方法
JP6241309B2 (ja) * 2014-02-17 2017-12-06 旭硝子株式会社 ガラス化学強化用再生塩の製造方法及び化学強化ガラスの製造方法
CN109133115A (zh) * 2018-09-14 2019-01-04 湖北兴发化工集团股份有限公司 一种分离回收二甲基亚砜废盐中有机无机相的工艺及分离设备
CN110255586A (zh) * 2019-06-17 2019-09-20 青海联大化工科技有限公司 精确控制分离亚硝酸钠、氯化钠制取熔盐级硝酸钠的方法
CN114524566A (zh) * 2022-03-01 2022-05-24 新疆隆炬新材料有限公司 一种碳纤维生产双废的处理装置及处理方法

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1194465A (en) * 1916-08-15 Harry p
US1300947A (en) * 1917-02-12 1919-04-15 Francis A Freeth Separation and recovery of potassium salts from commercial nitrate of soda containing such salts.
US1517046A (en) * 1921-11-07 1924-11-25 Guggenheim Brothers Method and process for the leaching of caliche and for the recovery of nitrate therefrom
US1516550A (en) * 1922-01-19 1924-11-25 Guggenheim Brothers Manufacture of sodium nitrate
US1915428A (en) * 1925-09-24 1933-06-27 Cosmic Arts Inc Process for the manufacture of potassium nitrate, etc.
US2024370A (en) * 1931-09-01 1935-12-17 Kaselitz Oskar Production of potassium nitrate
US3096034A (en) * 1960-12-28 1963-07-02 Wintershall Ag Method and apparatus for purifying potassium salt-containing materials
US3953571A (en) * 1974-01-04 1976-04-27 Th. Goldschmidt Ag Process for the treatment of carburizing salt wastes
US3949052A (en) * 1974-01-04 1976-04-06 Th. Goldschmidt Ag Process for the treatment of carburizing salt wastes
FR2562884B1 (fr) * 1984-04-16 1988-12-30 Solvay Procede pour la production de sel et sel obtenu par ce procede
IT1196984B (it) * 1986-07-23 1988-11-25 Enichem Agricoltura Spa Procedimento per la preparazione di nitrato di potassio
SU1721016A1 (ru) * 1989-01-09 1992-03-23 Государственный научно-исследовательский и проектный институт метанола и продуктов органического синтеза Способ получени нитрата кали

Also Published As

Publication number Publication date
JPH1036117A (ja) 1998-02-10
DE19614645C1 (de) 1997-10-30
US5846501A (en) 1998-12-08
CA2202416A1 (en) 1997-10-13
EP0801028A3 (el) 1997-10-22
DK0801028T3 (da) 2000-04-17
DE59700674D1 (de) 1999-12-16
EP0801028B1 (de) 1999-11-10
EP0801028A2 (de) 1997-10-15
JP4040136B2 (ja) 2008-01-30
ATE186523T1 (de) 1999-11-15
ES2140930T3 (es) 2000-03-01
MX9702633A (es) 1998-08-30

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