FR2307051A2 - Procede pour maintenir a des valeurs tres basses le taux de cyanure dans les bains de sels contenant des cyanates - Google Patents

Procede pour maintenir a des valeurs tres basses le taux de cyanure dans les bains de sels contenant des cyanates

Info

Publication number
FR2307051A2
FR2307051A2 FR7511166A FR7511166A FR2307051A2 FR 2307051 A2 FR2307051 A2 FR 2307051A2 FR 7511166 A FR7511166 A FR 7511166A FR 7511166 A FR7511166 A FR 7511166A FR 2307051 A2 FR2307051 A2 FR 2307051A2
Authority
FR
France
Prior art keywords
cyanate
fused
stabilising
heat treatment
cpds
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.)
Granted
Application number
FR7511166A
Other languages
English (en)
Other versions
FR2307051B2 (fr
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.)
STEPHANOIS RECH
Original Assignee
STEPHANOIS RECH
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 STEPHANOIS RECH filed Critical STEPHANOIS RECH
Priority to FR7511166A priority Critical patent/FR2307051A2/fr
Priority to ES437450A priority patent/ES437450A1/es
Priority to CH606275A priority patent/CH606476A5/xx
Priority to US05/576,993 priority patent/US4006043A/en
Priority to CA226,907A priority patent/CA1049908A/fr
Priority to NLAANVRAGE7505638,A priority patent/NL178981C/xx
Priority to SE7505532A priority patent/SE429448B/xx
Priority to BR3858/75A priority patent/BR7503026A/pt
Priority to SU752133389A priority patent/SU793410A3/ru
Priority to DE2521903A priority patent/DE2521903C2/de
Priority to GB20918/75A priority patent/GB1504917A/en
Priority to IT68273/75A priority patent/IT1032913B/it
Priority to AR258809A priority patent/AR202685A1/es
Priority to JP50057546A priority patent/JPS596911B2/ja
Priority to DD186101A priority patent/DD118445A5/xx
Publication of FR2307051A2 publication Critical patent/FR2307051A2/fr
Application granted granted Critical
Publication of FR2307051B2 publication Critical patent/FR2307051B2/fr
Granted 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
    • C23C8/52—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 more than one element being applied in one step
    • 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
    • C23C8/42—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 only one element being applied
    • C23C8/48—Nitriding
    • C23C8/50—Nitriding of ferrous surfaces
    • 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
    • C23C8/58—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 more than one element being applied in more than one step

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)
  • Removal Of Specific Substances (AREA)
FR7511166A 1974-05-17 1975-04-10 Procede pour maintenir a des valeurs tres basses le taux de cyanure dans les bains de sels contenant des cyanates Granted FR2307051A2 (fr)

Priority Applications (15)

Application Number Priority Date Filing Date Title
FR7511166A FR2307051A2 (fr) 1975-04-10 1975-04-10 Procede pour maintenir a des valeurs tres basses le taux de cyanure dans les bains de sels contenant des cyanates
ES437450A ES437450A1 (es) 1974-05-17 1975-05-05 Un procedimiento para mantener en valores muy bajos la pro-porcion de cianuros en los banos de sales fundidas.
CH606275A CH606476A5 (fr) 1974-05-17 1975-05-12
US05/576,993 US4006043A (en) 1974-05-17 1975-05-13 Method of maintaining at very low values the content of cyanide in salt baths containing cyanates
CA226,907A CA1049908A (fr) 1974-05-17 1975-05-14 Methode pour minimiser la concentration du cyanure dans les bains de cyanate
NLAANVRAGE7505638,A NL178981C (nl) 1974-05-17 1975-05-14 Werkwijze om het cyanidegehalte in gesmolten zoutbaden, die als werkzaam bestanddeel cyanaationen bevatten, laag te houden.
SE7505532A SE429448B (sv) 1974-05-17 1975-05-14 Sett att i saltbad innehallande cyanater halla cyanidhalten vid mycket laga verden.
BR3858/75A BR7503026A (pt) 1974-05-17 1975-05-15 Processo para manter a valores muito baixos,a taxa de cianuretos nos banhos de sais fundidos
SU752133389A SU793410A3 (ru) 1974-05-17 1975-05-16 Способ регенерации солевых расплавов дл нитрировани
DE2521903A DE2521903C2 (de) 1974-05-17 1975-05-16 Verfahren zur Niedrighaltung des Cyanidgehalts in geschmolzenen Salzbädern mit Cyanatanionen als wirksamen Bestandteil
GB20918/75A GB1504917A (en) 1974-05-17 1975-05-16 Method of maintaining at very low values the content of cyanide in salt baths containing cyanates
IT68273/75A IT1032913B (it) 1974-05-17 1975-05-16 Procedimento per mantenere a valori bassissimi il tasso di cianuro nei bagni di sali contenenti cianati
AR258809A AR202685A1 (es) 1974-05-17 1975-05-16 Procedimiento para mantener en valores muy bajos la proporcion de cianuro en los banos de sal que contienen cianatos
JP50057546A JPS596911B2 (ja) 1974-05-17 1975-05-16 シアンサンエンガンユウヨウユウエンヨクチユウノシアンカブツガンリヨウオゴクシヨウチニイジスルホウホウ
DD186101A DD118445A5 (fr) 1974-05-17 1975-05-16

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7511166A FR2307051A2 (fr) 1975-04-10 1975-04-10 Procede pour maintenir a des valeurs tres basses le taux de cyanure dans les bains de sels contenant des cyanates

Publications (2)

Publication Number Publication Date
FR2307051A2 true FR2307051A2 (fr) 1976-11-05
FR2307051B2 FR2307051B2 (fr) 1978-12-22

Family

ID=9153730

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7511166A Granted FR2307051A2 (fr) 1974-05-17 1975-04-10 Procede pour maintenir a des valeurs tres basses le taux de cyanure dans les bains de sels contenant des cyanates

Country Status (1)

Country Link
FR (1) FR2307051A2 (fr)

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Also Published As

Publication number Publication date
FR2307051B2 (fr) 1978-12-22

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