SU353396A1 - - Google Patents

Info

Publication number

SU353396A1

SU353396A1 SU1344226A SU1344226A SU353396A1 SU 353396 A1 SU353396 A1 SU 353396A1 SU 1344226 A SU1344226 A SU 1344226A SU 1344226 A SU1344226 A SU 1344226A SU 353396 A1 SU353396 A1 SU 353396A1

Authority

SU

USSR - Soviet Union

Prior art keywords

phosphoric acid

weight

gypsum

sulfuric acid

vessel

Prior art date

Links

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• NBIIXXVUZAFLBC-UHFFFAOYSA-N phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 28
• QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 20
• DLYUQMMRRRQYAE-UHFFFAOYSA-N Phosphorus pentoxide Chemical compound O1P(O2)(=O)OP3(=O)OP1(=O)OP2(=O)O3 DLYUQMMRRRQYAE-UHFFFAOYSA-N 0.000 description 18
• 229910000147 aluminium phosphate Inorganic materials 0.000 description 14
• 238000006243 chemical reaction Methods 0.000 description 12
• 239000010440 gypsum Substances 0.000 description 10
• 229910052602 gypsum Inorganic materials 0.000 description 10
• OSGAYBCDTDRGGQ-UHFFFAOYSA-L Calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 6
• 239000000706 filtrate Substances 0.000 description 6
• ZOMBKNNSYQHRCA-UHFFFAOYSA-J calcium sulfate hemihydrate Chemical compound O.[Ca+2].[Ca+2].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O ZOMBKNNSYQHRCA-UHFFFAOYSA-J 0.000 description 5
• 238000001953 recrystallisation Methods 0.000 description 5
• OAICVXFJPJFONN-UHFFFAOYSA-N phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 4
• 239000011574 phosphorus Substances 0.000 description 4
• 229910052698 phosphorus Inorganic materials 0.000 description 4
• NBIIXXVUZAFLBC-UHFFFAOYSA-K [O-]P([O-])([O-])=O Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 3
• 239000007864 aqueous solution Substances 0.000 description 3
• 235000011132 calcium sulphate Nutrition 0.000 description 3
• 238000001914 filtration Methods 0.000 description 3
• 239000007791 liquid phase Substances 0.000 description 3
• 238000004519 manufacturing process Methods 0.000 description 3
• 239000010452 phosphate Substances 0.000 description 3
• 239000002994 raw material Substances 0.000 description 3
• 239000010802 sludge Substances 0.000 description 3
• 239000000243 solution Substances 0.000 description 3
• 239000002253 acid Substances 0.000 description 2
• OYPRJOBELJOOCE-UHFFFAOYSA-N calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
• 239000011575 calcium Substances 0.000 description 2
• 229910052791 calcium Inorganic materials 0.000 description 2
• ODINCKMPIJJUCX-UHFFFAOYSA-N calcium monoxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 2
• 239000001175 calcium sulphate Substances 0.000 description 2
• 238000000034 method Methods 0.000 description 2
• XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
• 240000008669 Hedera helix Species 0.000 description 1
• 239000007795 chemical reaction product Substances 0.000 description 1
• 238000000354 decomposition reaction Methods 0.000 description 1
• 229910052500 inorganic mineral Inorganic materials 0.000 description 1
• 239000011707 mineral Substances 0.000 description 1
• CJDZTJNITSFKRE-UHFFFAOYSA-N phosphorus dioxide Chemical compound O=[P]=O CJDZTJNITSFKRE-UHFFFAOYSA-N 0.000 description 1
• 239000002244 precipitate Substances 0.000 description 1
• 238000002360 preparation method Methods 0.000 description 1
• 239000000047 product Substances 0.000 description 1
• 150000003839 salts Chemical class 0.000 description 1
• 238000004062 sedimentation Methods 0.000 description 1
• 239000011780 sodium chloride Substances 0.000 description 1
• 239000007787 solid Substances 0.000 description 1
• QAOWNCQODCNURD-UHFFFAOYSA-L sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
• 235000011149 sulphuric acid Nutrition 0.000 description 1
• 238000005406 washing Methods 0.000 description 1