IT1127295B - Catalyst based on oxide(s) of molybdenum and iron - Google Patents
Catalyst based on oxide(s) of molybdenum and ironInfo
- Publication number
- IT1127295B IT1127295B IT28218/79A IT2821879A IT1127295B IT 1127295 B IT1127295 B IT 1127295B IT 28218/79 A IT28218/79 A IT 28218/79A IT 2821879 A IT2821879 A IT 2821879A IT 1127295 B IT1127295 B IT 1127295B
- Authority
- IT
- Italy
- Prior art keywords
- mother liquor
- washing
- soluble
- resin
- ppte
- Prior art date
Links
- 239000003054 catalyst Substances 0.000 title abstract 3
- 229910052750 molybdenum Inorganic materials 0.000 title abstract 3
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 title abstract 2
- 229910052742 iron Inorganic materials 0.000 title abstract 2
- 239000011733 molybdenum Substances 0.000 title abstract 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title 2
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 abstract 3
- 239000012452 mother liquor Substances 0.000 abstract 3
- 238000005406 washing Methods 0.000 abstract 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 2
- 150000002500 ions Chemical class 0.000 abstract 2
- 239000011347 resin Substances 0.000 abstract 2
- 229920005989 resin Polymers 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- 239000002253 acid Substances 0.000 abstract 1
- 229910052783 alkali metal Inorganic materials 0.000 abstract 1
- 150000008044 alkali metal hydroxides Chemical class 0.000 abstract 1
- -1 alkali metal molybdate Chemical class 0.000 abstract 1
- 229910021529 ammonia Inorganic materials 0.000 abstract 1
- 239000003957 anion exchange resin Substances 0.000 abstract 1
- 239000008367 deionised water Substances 0.000 abstract 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
Landscapes
- Catalysts (AREA)
Abstract
Method for prepg. a catalyst based on oxides of Mo and Fe, which is active for oxidn. of methanol to formaldehyde, comprises (a) pptn. in aq. medium from a soluble Mo cpd. and a soluble ferric salt; (b) sepn. of the ppte. from the mother liquor and washing with deionised water; and (c) treating the washed ppte. to obtain the final active catalyst. Specifically, the mother liquor and/or the washing water is contacted with an anion exchange resin weakly salified with an acid, thus fixing any molybdic ions present in the liquors on the resin. These ions are then recovered in the form of an aq. soln. of alkali metal molybdate by contacting the resin with aq. alkali metal hydroxide. The ammonia content of the washing liquor is reduced from the 50-5000 ppm of prior art to below 0.05 ppm., to prevent pollution. The soluble molybdenum in the wash water and mother liquor is recovered and recycled.
Priority Applications (11)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT28218/79A IT1127295B (en) | 1979-12-19 | 1979-12-19 | Catalyst based on oxide(s) of molybdenum and iron |
| GB8039750A GB2069859B (en) | 1979-12-19 | 1980-12-11 | Process for preparing catalysts based on polybdenum and iron oxide |
| NLAANVRAGE8006808,A NL180280C (en) | 1979-12-19 | 1980-12-16 | PROCESS FOR PREPARING A CATALYST BASED ON MOLYBDENE AND IRON OXIDE FOR THE OXIDATION OF METHANOL TO FORMALDEHYDE. |
| DE19803047591 DE3047591A1 (en) | 1979-12-19 | 1980-12-17 | METHOD FOR PRODUCING CATALYSTS BASED ON MOLYBDA AND IRON OXIDES |
| AT0619180A AT380807B (en) | 1979-12-19 | 1980-12-18 | METHOD FOR INCREASING THE MOLYBDA EXHAUST IN THE METHOD FOR PRODUCING CATALYSTS BASED ON MOLYBDA AND IRON OXIDES |
| ES497890A ES497890A0 (en) | 1979-12-19 | 1980-12-18 | A PROCEDURE FOR THE PREPARATION OF A BA-SE CATALYST OF MOLYBDENUM AND IRON OXIDES |
| FR808026956A FR2471808A1 (en) | 1979-12-19 | 1980-12-18 | PROCESS FOR THE PREPARATION OF A CATALYST BASED ON MOLYBDENE OXIDES AND IRON |
| DK539280A DK539280A (en) | 1979-12-19 | 1980-12-18 | PROCEDURE FOR THE PREPARATION OF A MALYBDEN AND IRON OXIDES CATALYST |
| BR8008328A BR8008328A (en) | 1979-12-19 | 1980-12-18 | PROCESS TO PREPARE A CATALYST, THE MOLYBDENUM OXIDES AND IRON BASE, AND ACTIVE IN THE METHANOL OXIDATION TO FORMALDEIDE |
| IN1407/CAL/80A IN153611B (en) | 1979-12-19 | 1980-12-19 | |
| US06/218,224 US4331567A (en) | 1979-12-19 | 1980-12-19 | Process for preparing catalysts based on molybdenum and iron oxides |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT28218/79A IT1127295B (en) | 1979-12-19 | 1979-12-19 | Catalyst based on oxide(s) of molybdenum and iron |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IT7928218A0 IT7928218A0 (en) | 1979-12-19 |
| IT1127295B true IT1127295B (en) | 1986-05-21 |
Family
ID=11223164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT28218/79A IT1127295B (en) | 1979-12-19 | 1979-12-19 | Catalyst based on oxide(s) of molybdenum and iron |
Country Status (1)
| Country | Link |
|---|---|
| IT (1) | IT1127295B (en) |
-
1979
- 1979-12-19 IT IT28218/79A patent/IT1127295B/en active
Also Published As
| Publication number | Publication date |
|---|---|
| IT7928218A0 (en) | 1979-12-19 |
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