PL124937B2 - Method of recovery of molybdenum from spent molybdenum-cobalt catalysts - Google Patents
Method of recovery of molybdenum from spent molybdenum-cobalt catalysts Download PDFInfo
- Publication number
- PL124937B2 PL124937B2 PL22933781A PL22933781A PL124937B2 PL 124937 B2 PL124937 B2 PL 124937B2 PL 22933781 A PL22933781 A PL 22933781A PL 22933781 A PL22933781 A PL 22933781A PL 124937 B2 PL124937 B2 PL 124937B2
- Authority
- PL
- Poland
- Prior art keywords
- molybdenum
- spent
- solution
- cobalt catalysts
- acid
- Prior art date
Links
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 title claims description 6
- 239000003054 catalyst Substances 0.000 title claims description 6
- 239000011733 molybdenum Substances 0.000 title claims description 6
- 229910052750 molybdenum Inorganic materials 0.000 title claims description 6
- AFTDTIZUABOECB-UHFFFAOYSA-N [Co].[Mo] Chemical compound [Co].[Mo] AFTDTIZUABOECB-UHFFFAOYSA-N 0.000 title claims 3
- 238000000034 method Methods 0.000 title claims 3
- 238000011084 recovery Methods 0.000 title 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 4
- 238000002386 leaching Methods 0.000 claims description 4
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 claims description 3
- VLAPMBHFAWRUQP-UHFFFAOYSA-L molybdic acid Chemical compound O[Mo](O)(=O)=O VLAPMBHFAWRUQP-UHFFFAOYSA-L 0.000 claims description 3
- 229910021529 ammonia Inorganic materials 0.000 claims description 2
- 239000001569 carbon dioxide Substances 0.000 claims description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims 3
- 229910017604 nitric acid Inorganic materials 0.000 claims 3
- 239000001099 ammonium carbonate Substances 0.000 claims 1
- 235000012501 ammonium carbonate Nutrition 0.000 claims 1
- 239000007791 liquid phase Substances 0.000 claims 1
- 239000000203 mixture Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Catalysts (AREA)
Description
Opis patentowy opublikowano: 31.01.19842 124937 Przyklad II. Do 1 dm3 20% kwasnego weglanu amonu ogrzanego do temperatury 363K dodaje sie 0,2 kg zuzytego katalizatora i luguje w tej temperaturze przez 2 godziny. W tym czasie 93% wagowych molibdenu przechodzi do roztworu. Nastepnie mieszanine filtruje sie a z przesaczu za pomoca pary wodnej odpedza sie amoniak i dwutlenek wegla, które absorbuje sie w wodzie, odtwarzajac czynnik lugujacy, który kieruje sie do ponownego lugowania. Z pozostalosci wytraca sie kwas molibdenowy tak jak w przykladzie I. PL
Claims (3)
- Zastrzezenia patentowe 1. Sposób odzyskiwania molibdenu ze zuzytych katalizatorów molibdenowo-kobaltowych, znamienny tym, ze zuzyty katalizator poddaje sie lugowaniu w 20% roztworze obojetnego weglanu amonu w temperaturze okolo 363 K, w czasie od 1,5 do 2,5 godziny, przy stosunku fazy stalej do cieklej = 1:5, a nastepnie za pomoca kwasu azotowego, z roztworu po lugowaniu wytraca sie molibden w postaci kwasu molibdenowego, przy wartosci pH = 3.
- 2. Sposób odzyskiwania molibdenu ze zuzytych katalizatorów molibdenowo-kobaltowego, znamienny tym, ze zuzyty katalizator poddaje sie lugowaniu w 20% roztworze kwasnego weglanu amonu w temperaturze okolo 363 K, w czasie od 1,5 do 2,5 godziny przy stosunku fazy cieklej do stalej równej 1 :5, po czym z roztworu po lugowaniu odpedza sie za pomoca przegrzanej pary wodnej amoniak i dwutlenek wegla, z których regeneruje sie czynnik lugujacy, natomiast pozostaly w roztworze molibden wytraca sie za pomoca kwasu azotowego, w postaci kwasu molibdenowego, przy wartosci pH =
- 3. Pracownia Poligraficzna W PRL.. Naklad I 20 cpz. Cena 100 zl PL
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL22933781A PL124937B2 (en) | 1981-01-21 | 1981-01-21 | Method of recovery of molybdenum from spent molybdenum-cobalt catalysts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL22933781A PL124937B2 (en) | 1981-01-21 | 1981-01-21 | Method of recovery of molybdenum from spent molybdenum-cobalt catalysts |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| PL229337A2 PL229337A2 (pl) | 1981-12-11 |
| PL124937B2 true PL124937B2 (en) | 1983-03-31 |
Family
ID=20007089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PL22933781A PL124937B2 (en) | 1981-01-21 | 1981-01-21 | Method of recovery of molybdenum from spent molybdenum-cobalt catalysts |
Country Status (1)
| Country | Link |
|---|---|
| PL (1) | PL124937B2 (pl) |
-
1981
- 1981-01-21 PL PL22933781A patent/PL124937B2/pl unknown
Also Published As
| Publication number | Publication date |
|---|---|
| PL229337A2 (pl) | 1981-12-11 |
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