SU247931A1 - - Google Patents

Info

Publication number

SU247931A1

SU247931A1 SU1127255A SU1127255A SU247931A1 SU 247931 A1 SU247931 A1 SU 247931A1 SU 1127255 A SU1127255 A SU 1127255A SU 1127255 A SU1127255 A SU 1127255A SU 247931 A1 SU247931 A1 SU 247931A1

Authority

SU

USSR - Soviet Union

Prior art keywords

solution

sodium

chromium

precipitate

chromate

Prior art date

Links

• Espacenet
• Global Dossier
• Discuss

• QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 7
• 239000002244 precipitate Substances 0.000 description 6
• VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 5
• WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 4
• 239000003795 chemical substances by application Substances 0.000 description 4
• PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 3
• 229910052804 chromium Inorganic materials 0.000 description 3
• 239000011651 chromium Substances 0.000 description 3
• PXLIDIMHPNPGMH-UHFFFAOYSA-N sodium chromate Chemical compound [Na+].[Na+].[O-][Cr]([O-])(=O)=O PXLIDIMHPNPGMH-UHFFFAOYSA-N 0.000 description 3
• 229910052938 sodium sulfate Inorganic materials 0.000 description 3
• 235000011152 sodium sulphate Nutrition 0.000 description 3
• AKHNMLFCWUSKQB-UHFFFAOYSA-L sodium thiosulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=S AKHNMLFCWUSKQB-UHFFFAOYSA-L 0.000 description 3
• 235000019345 sodium thiosulphate Nutrition 0.000 description 3
• WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 2
• 239000003638 chemical reducing agent Substances 0.000 description 2
• ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 description 2
• 238000004519 manufacturing process Methods 0.000 description 2
• 238000000034 method Methods 0.000 description 2
• 239000012452 mother liquor Substances 0.000 description 2
• 239000000047 product Substances 0.000 description 2
• WBHQBSYUUJJSRZ-UHFFFAOYSA-M sodium bisulfate Chemical compound [Na+].OS([O-])(=O)=O WBHQBSYUUJJSRZ-UHFFFAOYSA-M 0.000 description 2
• 229910000342 sodium bisulfate Inorganic materials 0.000 description 2
• 239000007921 spray Substances 0.000 description 2
• CRBNKMWAJUCREG-UHFFFAOYSA-J S([O-])(O)(=O)=O.[Na+].[Cr+3].S([O-])(O)(=O)=O.S([O-])(O)(=O)=O.S([O-])(O)(=O)=O Chemical compound S([O-])(O)(=O)=O.[Na+].[Cr+3].S([O-])(O)(=O)=O.S([O-])(O)(=O)=O.S([O-])(O)(=O)=O CRBNKMWAJUCREG-UHFFFAOYSA-J 0.000 description 1
• 238000005119 centrifugation Methods 0.000 description 1
• 150000001845 chromium compounds Chemical class 0.000 description 1
• ABXXWVKOBZHNNF-UHFFFAOYSA-N chromium(3+);dioxido(dioxo)chromium Chemical class [Cr+3].[Cr+3].[O-][Cr]([O-])(=O)=O.[O-][Cr]([O-])(=O)=O.[O-][Cr]([O-])(=O)=O ABXXWVKOBZHNNF-UHFFFAOYSA-N 0.000 description 1
• 239000013078 crystal Substances 0.000 description 1
• 238000002425 crystallisation Methods 0.000 description 1
• 230000008025 crystallization Effects 0.000 description 1
• 238000001035 drying Methods 0.000 description 1
• 239000012535 impurity Substances 0.000 description 1
• 239000000203 mixture Substances 0.000 description 1
• 239000010802 sludge Substances 0.000 description 1
• 235000011149 sulphuric acid Nutrition 0.000 description 1
• 239000000725 suspension Substances 0.000 description 1
• 239000002699 waste material Substances 0.000 description 1