BE562193A - - Google Patents
Info
- Publication number
- BE562193A BE562193A BE562193DA BE562193A BE 562193 A BE562193 A BE 562193A BE 562193D A BE562193D A BE 562193DA BE 562193 A BE562193 A BE 562193A
- Authority
- BE
- Belgium
- Prior art keywords
- sep
- solution
- selenium
- traces
- selenate
- Prior art date
Links
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 claims description 202
- UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 claims description 153
- 239000011669 selenium Substances 0.000 claims description 151
- 229910052711 selenium Inorganic materials 0.000 claims description 121
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Natural products NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 77
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 claims description 72
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 69
- QYHFIVBSNOWOCQ-UHFFFAOYSA-N selenic acid Chemical class O[Se](O)(=O)=O QYHFIVBSNOWOCQ-UHFFFAOYSA-N 0.000 claims description 47
- 239000002893 slag Substances 0.000 claims description 35
- 238000000034 method Methods 0.000 claims description 28
- 238000009835 boiling Methods 0.000 claims description 8
- 230000003647 oxidation Effects 0.000 claims description 7
- 238000007254 oxidation reaction Methods 0.000 claims description 7
- 229940082569 selenite Drugs 0.000 claims description 7
- MCAHWIHFGHIESP-UHFFFAOYSA-L selenite(2-) Chemical compound [O-][Se]([O-])=O MCAHWIHFGHIESP-UHFFFAOYSA-L 0.000 claims description 7
- 229910052783 alkali metal Inorganic materials 0.000 claims description 6
- 238000005406 washing Methods 0.000 claims description 6
- PJCOJFXCGSGBHE-UHFFFAOYSA-N O[Se](O)(=O)=O.[SeH2] Chemical compound O[Se](O)(=O)=O.[SeH2] PJCOJFXCGSGBHE-UHFFFAOYSA-N 0.000 claims description 5
- 150000001340 alkali metals Chemical class 0.000 claims description 4
- 239000000243 solution Substances 0.000 description 147
- 229940091258 selenium supplement Drugs 0.000 description 116
- 239000000706 filtrate Substances 0.000 description 18
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 17
- 239000003638 chemical reducing agent Substances 0.000 description 15
- 239000002244 precipitate Substances 0.000 description 15
- 235000010269 sulphur dioxide Nutrition 0.000 description 15
- 239000000047 product Substances 0.000 description 13
- 239000011593 sulfur Substances 0.000 description 13
- 229910052717 sulfur Inorganic materials 0.000 description 13
- 239000000463 material Substances 0.000 description 11
- 235000011149 sulphuric acid Nutrition 0.000 description 9
- PMYDPQQPEAYXKD-UHFFFAOYSA-N 3-hydroxy-n-naphthalen-2-ylnaphthalene-2-carboxamide Chemical compound C1=CC=CC2=CC(NC(=O)C3=CC4=CC=CC=C4C=C3O)=CC=C21 PMYDPQQPEAYXKD-UHFFFAOYSA-N 0.000 description 8
- 229960001881 sodium selenate Drugs 0.000 description 8
- 239000011655 sodium selenate Substances 0.000 description 8
- 235000018716 sodium selenate Nutrition 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 150000001805 chlorine compounds Chemical class 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 239000010802 sludge Substances 0.000 description 7
- 229910052714 tellurium Inorganic materials 0.000 description 7
- PORWMNRCUJJQNO-UHFFFAOYSA-N tellurium atom Chemical compound [Te] PORWMNRCUJJQNO-UHFFFAOYSA-N 0.000 description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 6
- 239000002253 acid Substances 0.000 description 6
- 238000007792 addition Methods 0.000 description 6
- 229910052802 copper Inorganic materials 0.000 description 6
- 239000010949 copper Substances 0.000 description 6
- 229910052785 arsenic Inorganic materials 0.000 description 5
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 5
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 4
- 229910052787 antimony Inorganic materials 0.000 description 4
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 239000006227 byproduct Substances 0.000 description 4
- 229910052708 sodium Inorganic materials 0.000 description 4
- 239000011734 sodium Substances 0.000 description 4
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 description 4
- 241001201483 Selenia <moth> Species 0.000 description 3
- 230000002411 adverse Effects 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000005868 electrolysis reaction Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- -1 however Substances 0.000 description 3
- 238000011065 in-situ storage Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000001556 precipitation Methods 0.000 description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 238000013019 agitation Methods 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000012153 distilled water Substances 0.000 description 2
- 239000007800 oxidant agent Substances 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 235000010344 sodium nitrate Nutrition 0.000 description 2
- 239000004317 sodium nitrate Substances 0.000 description 2
- 150000003585 thioureas Chemical class 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- XYUNNDAEUQFHGV-UHFFFAOYSA-N [Se].[Se] Chemical compound [Se].[Se] XYUNNDAEUQFHGV-UHFFFAOYSA-N 0.000 description 1
- 239000003929 acidic solution Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000006256 anode slurry Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000010960 commercial process Methods 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- BVTBRVFYZUCAKH-UHFFFAOYSA-L disodium selenite Chemical compound [Na+].[Na+].[O-][Se]([O-])=O BVTBRVFYZUCAKH-UHFFFAOYSA-L 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000002006 petroleum coke Substances 0.000 description 1
- 239000012264 purified product Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 229940065287 selenium compound Drugs 0.000 description 1
- 150000003343 selenium compounds Chemical class 0.000 description 1
- 150000003346 selenoethers Chemical class 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 229960001471 sodium selenite Drugs 0.000 description 1
- 239000011781 sodium selenite Substances 0.000 description 1
- 235000015921 sodium selenite Nutrition 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000012085 test solution Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B19/00—Selenium; Tellurium; Compounds thereof
- C01B19/02—Elemental selenium or tellurium
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Photoreceptors In Electrophotography (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE562193A true BE562193A (d) |
Family
ID=183887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE562193D BE562193A (d) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE562193A (d) |
-
0
- BE BE562193D patent/BE562193A/fr unknown
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2714589A1 (fr) | Procede de production d'acide phosphorique du type dihydrate/hemihydrate | |
| BE818695A (fr) | Procede pour eliminer le mercure des effluents liquides | |
| EP0008548B1 (fr) | Nouveau procédé de préparation du disulfure de benzothiazyle | |
| EP0014111B1 (fr) | Procédé de fabrication de composés oxhydrylés de nickel et composés ainsi obtenus | |
| BE562193A (d) | ||
| FR2495602A1 (fr) | Procede de separation de cobalt et de nickel dans des solutions aqueuses acides et produits obtenus suivant ce procede | |
| US2780528A (en) | Process for recovering iodine from iodine-containing aqueous glycol solutions | |
| FR2490618A1 (fr) | Procede de fabrication d'une solution stable de sulfates de titanyle | |
| FR2502608A1 (fr) | Procede de production de l'anhydride arsenieux a partir d'une substance contenant du sulfure d'arsenic | |
| EP0024987A1 (fr) | Procédé de traitement des solutions de chlorure de plomb | |
| BE1001781A6 (fr) | Procede de traitement de matieres contenant des metaux lourds par lixiviation acide. | |
| WO1983000509A1 (en) | Selective purification of arsenical material during an alkaline process for the treatment of a uranium-bearing and/or molybdenum-bearing mineral by means of a magnesium compound | |
| FR2463100A1 (fr) | Procede de fabrication de composes de titane au moyen d'un reducteur | |
| CH316730A (fr) | Procédé de préparation d'une composition contenant du chrome | |
| BE535218A (d) | ||
| FR2500429A1 (fr) | Procede de recuperation d'uranium a partir d'acide phosphorique obtenu par voie humide | |
| BE334628A (d) | ||
| BE499355A (d) | ||
| BE505163A (d) | ||
| BE592107A (d) | ||
| FR2643356A1 (fr) | Procede de destruction des hypochlorites dans une solution de chlorate | |
| BE362425A (d) | ||
| FR2495640A1 (fr) | Procede d'extraction de plomb et argent de matieres contenant ces metaux, par lixiviation chlorurante et cementation par un metal oxydable divise | |
| CH196339A (fr) | Procédé de fabrication de sulfate basique d'aluminium très pur. | |
| BE494870A (d) |