DE2232123A1 - - Google Patents

Info

Publication number
DE2232123A1
DE2232123A1 DE19722232123 DE2232123A DE2232123A1 DE 2232123 A1 DE2232123 A1 DE 2232123A1 DE 19722232123 DE19722232123 DE 19722232123 DE 2232123 A DE2232123 A DE 2232123A DE 2232123 A1 DE2232123 A1 DE 2232123A1
Authority
DE
Germany
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.)
Granted
Application number
DE19722232123
Other versions
DE2232123C2 (de
DE2232123B1 (de
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 filed Critical
Priority to DE2232123A priority Critical patent/DE2232123C2/de
Priority to US37149873 priority patent/US3865921A/en
Priority to GB3120473A priority patent/GB1427574A/en
Publication of DE2232123A1 publication Critical patent/DE2232123A1/de
Publication of DE2232123B1 publication Critical patent/DE2232123B1/de
Application granted granted Critical
Publication of DE2232123C2 publication Critical patent/DE2232123C2/de
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/40—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using liquids, e.g. salt baths, liquid suspensions
    • 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)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Processing Of Solid Wastes (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Removal Of Specific Substances (AREA)
DE2232123A 1972-06-30 1972-06-30 Verfahren zur Entgiftung von Härtesalzrückständen Expired DE2232123C2 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE2232123A DE2232123C2 (de) 1972-06-30 1972-06-30 Verfahren zur Entgiftung von Härtesalzrückständen
US37149873 US3865921A (en) 1972-06-30 1973-06-19 Process for decontamination of hardening salt residue
GB3120473A GB1427574A (en) 1972-06-30 1973-06-29 Process for treating residues of hardening salts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2232123A DE2232123C2 (de) 1972-06-30 1972-06-30 Verfahren zur Entgiftung von Härtesalzrückständen

Publications (3)

Publication Number Publication Date
DE2232123A1 true DE2232123A1 (de) 1973-12-06
DE2232123B1 DE2232123B1 (de) 1973-12-06
DE2232123C2 DE2232123C2 (de) 1974-07-04

Family

ID=5849310

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2232123A Expired DE2232123C2 (de) 1972-06-30 1972-06-30 Verfahren zur Entgiftung von Härtesalzrückständen

Country Status (3)

Country Link
US (1) US3865921A (de)
DE (1) DE2232123C2 (de)
GB (1) GB1427574A (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2633772A1 (de) * 1976-07-28 1978-02-02 Degussa Verfahren zur beseitigung von haerterei- und galvanikabwaessern
EP0036900A1 (de) * 1980-03-28 1981-10-07 SKF Industrial Trading & Development Co, B.V. Verfahren und Vorrichtung zur Rückgewinnung von verbrauchtem Härtesalz
DE19537198C1 (de) * 1995-10-06 1997-02-27 Durferrit Thermotechnik Gmbh Verfahren zur Wiedergewinnung der Salzbestandteile aus Härtereisalzbädern
FR3132298A1 (fr) * 2022-01-31 2023-08-04 Hydromecanique Et Frottement Procede de traitement des eaux d’arret et des boues de decrassage par carbonatation au sein d’une installation chimique de nitruration en bain de sels fondus
FR3132299A1 (fr) * 2022-01-31 2023-08-04 Hydromecanique Et Frottement Procede de traitement des eaux d’arret et des boues de decrassage par carbonatation et decarbonatation au sein d’une installation chimique de nitruration en bain de sels fondus
FR3132300A1 (fr) * 2022-01-31 2023-08-04 Hydromecanique Et Frottement Procede de traitement des eaux d’arret et des boues de decrassage par decarbonatation au sein d’une installation chimique de nitruration en bain de sels fondus

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1315219A (en) * 1919-09-09 Edward victor espenhahn
US1604565A (en) * 1924-10-18 1926-10-26 Coulier Sylvain Purification of gases
US3226182A (en) * 1962-08-07 1965-12-28 American Cyanamid Co Purification of crude cyanogen chloride
BE758789A (fr) * 1969-11-15 1971-04-16 Degussa Procede de preparation d'hexacyanoferrate-(ii) de
US3695833A (en) * 1971-06-16 1972-10-03 American Cyanamid Co Production of alkali metal ferrocyanide

Also Published As

Publication number Publication date
GB1427574A (en) 1976-03-10
DE2232123C2 (de) 1974-07-04
DE2232123B1 (de) 1973-12-06
US3865921A (en) 1975-02-11

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Legal Events

Date Code Title Description
B1 Publication of the examined application without previous publication of unexamined application
C2 Grant after previous publication (2nd publication)