JPH0453600B2 - - Google Patents
Info
- Publication number
- JPH0453600B2 JPH0453600B2 JP59076749A JP7674984A JPH0453600B2 JP H0453600 B2 JPH0453600 B2 JP H0453600B2 JP 59076749 A JP59076749 A JP 59076749A JP 7674984 A JP7674984 A JP 7674984A JP H0453600 B2 JPH0453600 B2 JP H0453600B2
- Authority
- JP
- Japan
- Prior art keywords
- sludge
- wastewater
- phosphoric acid
- production
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 47
- 239000002351 wastewater Substances 0.000 claims description 36
- 239000010802 sludge Substances 0.000 claims description 32
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 19
- 238000006386 neutralization reaction Methods 0.000 claims description 18
- 238000004519 manufacturing process Methods 0.000 claims description 17
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 10
- 238000001914 filtration Methods 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 239000002367 phosphate rock Substances 0.000 claims description 8
- 238000000354 decomposition reaction Methods 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 6
- 239000013505 freshwater Substances 0.000 claims description 4
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 claims description 3
- 229910001424 calcium ion Inorganic materials 0.000 claims description 3
- 239000000498 cooling water Substances 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 239000012266 salt solution Substances 0.000 claims 1
- 238000005406 washing Methods 0.000 claims 1
- 239000002912 waste gas Substances 0.000 claims 1
- 239000012535 impurity Substances 0.000 description 4
- 229910004298 SiO 2 Inorganic materials 0.000 description 3
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 3
- 229910001634 calcium fluoride Inorganic materials 0.000 description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- 239000012267 brine Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 235000021317 phosphate Nutrition 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 150000002222 fluorine compounds Chemical class 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 150000003016 phosphoric acids Chemical class 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 229910001392 phosphorus oxide Inorganic materials 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- VSAISIQCTGDGPU-UHFFFAOYSA-N tetraphosphorus hexaoxide Chemical compound O1P(O2)OP3OP1OP2O3 VSAISIQCTGDGPU-UHFFFAOYSA-N 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
- C01B25/00—Phosphorus; Compounds thereof
- C01B25/16—Oxyacids of phosphorus; Salts thereof
- C01B25/18—Phosphoric acid
- C01B25/22—Preparation by reacting phosphate-containing material with an acid, e.g. wet process
- C01B25/222—Preparation by reacting phosphate-containing material with an acid, e.g. wet process with sulfuric acid, a mixture of acids mainly consisting of sulfuric acid or a mixture of compounds forming it in situ, e.g. a mixture of sulfur dioxide, water and oxygen
- C01B25/223—Preparation by reacting phosphate-containing material with an acid, e.g. wet process with sulfuric acid, a mixture of acids mainly consisting of sulfuric acid or a mixture of compounds forming it in situ, e.g. a mixture of sulfur dioxide, water and oxygen only one form of calcium sulfate being formed
- C01B25/225—Dihydrate process
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Removal Of Specific Substances (AREA)
- Treatment Of Sludge (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19833314248 DE3314248A1 (de) | 1983-04-20 | 1983-04-20 | Verfahren zur behandlung des bei der nassphosphorsaeureherstellung anfallenden abwassers |
| DE3314248.3 | 1983-04-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59199095A JPS59199095A (ja) | 1984-11-12 |
| JPH0453600B2 true JPH0453600B2 (en)) | 1992-08-27 |
Family
ID=6196837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59076749A Granted JPS59199095A (ja) | 1983-04-20 | 1984-04-18 | リン鉱石の硫酸での湿式分解によりリン酸を製造する際に生じる廃水の処理法 |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS59199095A (en)) |
| AT (1) | AT390602B (en)) |
| DD (1) | DD219470A5 (en)) |
| DE (1) | DE3314248A1 (en)) |
| IN (1) | IN160464B (en)) |
| ZA (1) | ZA841733B (en)) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT396227B (de) * | 1989-08-17 | 1993-07-26 | Perlmooser Zementwerke Ag | Neutralisierungsmittel mit depotwirkung |
| JP2002035766A (ja) * | 2000-07-21 | 2002-02-05 | Japan Organo Co Ltd | 排水中のフッ素、リンの除去方法 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1160376B (de) * | 1959-05-14 | 1963-12-27 | Knapsack Ag | Verfahren zur Aufbereitung von bei der Phosphorproduktion anfallenden Abwaessern |
| AT348947B (de) * | 1977-03-02 | 1979-03-12 | Voest Ag | Verfahren zur neutralisation von saeurehaeltigen spuelwaessern oder verbrauchten beizsaeuren von metallbeizereien |
| DD146446A1 (de) * | 1979-10-04 | 1981-02-11 | Hans Hoppe | Verfahren zur phosphat-eliminierung aus abwaessern |
| DE2943870A1 (de) * | 1979-10-30 | 1981-06-11 | Universal Gesellschaft zur Errichtung von Umweltschutzanlagen mbH & Co, 2410 Mölln | Verfahren und vorrichtung zum behandeln von abwaessern, insbesondere zur phosphat-faellung und zur nachreinigung von abwaessern in becken oder teichen |
| US4301014A (en) * | 1980-06-05 | 1981-11-17 | Hooker Chemicals & Plastics Corp. | Phosphorus pentasulfide waste water treatment |
| DE3038336A1 (de) * | 1980-10-10 | 1982-05-27 | Hoechst Ag, 6000 Frankfurt | Verfahren zur aufarbeitung von phosphorhaltigem abwasser |
-
1983
- 1983-04-20 DE DE19833314248 patent/DE3314248A1/de active Granted
-
1984
- 1984-03-08 IN IN219/DEL/84A patent/IN160464B/en unknown
- 1984-03-08 ZA ZA841733A patent/ZA841733B/xx unknown
- 1984-03-29 AT AT0107584A patent/AT390602B/de not_active IP Right Cessation
- 1984-04-16 DD DD84262016A patent/DD219470A5/de not_active IP Right Cessation
- 1984-04-18 JP JP59076749A patent/JPS59199095A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| AT390602B (de) | 1990-06-11 |
| DE3314248A1 (de) | 1984-10-25 |
| DD219470A5 (de) | 1985-03-06 |
| ZA841733B (en) | 1984-10-31 |
| ATA107584A (de) | 1989-11-15 |
| JPS59199095A (ja) | 1984-11-12 |
| DE3314248C2 (en)) | 1991-06-13 |
| IN160464B (en)) | 1987-07-11 |
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