IT1188894B - Procedimento di trattamento di un acido fosforico impuro - Google Patents
Procedimento di trattamento di un acido fosforico impuroInfo
- Publication number
- IT1188894B IT1188894B IT47673/80A IT4767380A IT1188894B IT 1188894 B IT1188894 B IT 1188894B IT 47673/80 A IT47673/80 A IT 47673/80A IT 4767380 A IT4767380 A IT 4767380A IT 1188894 B IT1188894 B IT 1188894B
- Authority
- IT
- Italy
- Prior art keywords
- phosphoric acid
- acid treatment
- treatment procedure
- impure phosphoric
- impure
- Prior art date
Links
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
- C01B25/234—Purification; Stabilisation; Concentration
- C01B25/235—Clarification; Stabilisation to prevent post-precipitation of dissolved impurities
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Water Treatment By Sorption (AREA)
- Extraction Or Liquid Replacement (AREA)
- Fuel Cell (AREA)
- Chemical Treatment Of Metals (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7901752A FR2447347A1 (fr) | 1979-01-24 | 1979-01-24 | Procede de traitement d'un acide phosphorique impur |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| IT8047673A0 IT8047673A0 (it) | 1980-01-22 |
| IT8047673A1 IT8047673A1 (it) | 1981-07-22 |
| IT1188894B true IT1188894B (it) | 1988-01-28 |
Family
ID=9221134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT47673/80A IT1188894B (it) | 1979-01-24 | 1980-01-22 | Procedimento di trattamento di un acido fosforico impuro |
Country Status (21)
| Country | Link |
|---|---|
| US (1) | US4369169A (it) |
| JP (1) | JPS55104908A (it) |
| AT (1) | ATA38080A (it) |
| BE (1) | BE881307A (it) |
| BR (1) | BR8000411A (it) |
| CA (1) | CA1134119A (it) |
| DE (1) | DE3002359C2 (it) |
| EG (1) | EG14670A (it) |
| ES (1) | ES487930A1 (it) |
| FI (1) | FI67205C (it) |
| FR (1) | FR2447347A1 (it) |
| GB (1) | GB2039869B (it) |
| GR (1) | GR73131B (it) |
| IL (1) | IL59186A (it) |
| IN (1) | IN151181B (it) |
| IT (1) | IT1188894B (it) |
| MA (1) | MA18711A1 (it) |
| MX (1) | MX7288E (it) |
| NL (1) | NL8000439A (it) |
| SU (1) | SU1181529A3 (it) |
| ZA (1) | ZA80411B (it) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2507170A2 (fr) * | 1976-02-26 | 1982-12-10 | Ind Chimiques Maghrebines | Procede de clarification et de defluoration simultanees de l'acide phosphorique et acide obtenu par ledit procede |
| US4291005A (en) * | 1979-04-23 | 1981-09-22 | American Cyanamid Company | Settling out suspended solids in phosphoric acid product solutions |
| DE3212675A1 (de) * | 1982-04-05 | 1983-10-06 | Hoechst Ag | Verfahren zur abtrennung von schwermetallverbindungen aus zwischenprodukten der fabrikation von phosphorduengemitteln |
| US4585636A (en) * | 1984-10-17 | 1986-04-29 | Negev Phosphates Ltd. | Process for the manufacture of purified phosphoric acid |
| US4643883A (en) * | 1986-01-22 | 1987-02-17 | International Minerals & Chemical Corp. | Method of decolorizing wet process phosphoric acid |
| DE3806822A1 (de) * | 1988-03-03 | 1989-09-14 | Hoechst Ag | Kontinuierliches verfahren zur vollstaendigen entferung organischer verunreinigungen und vollstaendiger entfaerbung vorgereinigter nassphosphorsaeure |
| DE3913853A1 (de) * | 1989-04-27 | 1990-10-31 | Hoechst Ag | Verfahren zur aufarbeitung von phosphorsaeure |
| US9187327B2 (en) * | 2011-01-04 | 2015-11-17 | Nalco Company | Phosphoric acid production gypsum filtration flocculant pre-dilution (make down) with post-filtration phosphoric acid |
| JP6060398B2 (ja) * | 2014-03-31 | 2017-01-18 | 日本碍子株式会社 | 排水中のリン除去方法および排水中のリン除去装置 |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2968528A (en) * | 1957-07-01 | 1961-01-17 | Int Minerals & Chem Corp | Process for producing clarified phosphoric acid |
| US2936888A (en) * | 1958-07-07 | 1960-05-17 | Int Minerals & Chem Corp | Production of clarified acidic phosphatic solutions |
| US3186793A (en) * | 1960-10-10 | 1965-06-01 | Internat Minerals & Chemicals | Clarification of acidic phosphatic solutions |
| US3099622A (en) * | 1960-10-25 | 1963-07-30 | Int Minerals & Chem Corp | Production of clarified acidic phosphatic solutions |
| NL295743A (it) * | 1962-07-25 | |||
| GB1103224A (en) * | 1964-07-28 | 1968-02-14 | Marchon Products Ltd | Improvements in the manufacture of phosphoric acid |
| US3644091A (en) * | 1970-03-17 | 1972-02-22 | Exxon Research Engineering Co | Clarification of phosphoric acid |
| AU7108374A (en) * | 1973-12-21 | 1976-01-15 | Fertiliazantes Fosfatados Mexi | Phosphoric acid |
| DE2447390C3 (de) * | 1974-10-04 | 1983-11-17 | Hoechst Ag, 6230 Frankfurt | Verfahren zur Reinigung von Naßphosphorsäure |
| UST971006I4 (en) | 1977-09-14 | 1978-06-06 | Tennessee Valley Authority | Purification of phosphoric acid solutions |
| US4256570A (en) * | 1979-03-19 | 1981-03-17 | International Minerals & Chemical Corporation | Purification of phosphoric acid |
-
1979
- 1979-01-24 FR FR7901752A patent/FR2447347A1/fr active Granted
-
1980
- 1980-01-21 IN IN81/CAL/80A patent/IN151181B/en unknown
- 1980-01-22 IT IT47673/80A patent/IT1188894B/it active
- 1980-01-22 MX MX808600U patent/MX7288E/es unknown
- 1980-01-22 FI FI800183A patent/FI67205C/fi not_active IP Right Cessation
- 1980-01-22 US US06/114,204 patent/US4369169A/en not_active Expired - Lifetime
- 1980-01-22 IL IL59186A patent/IL59186A/xx unknown
- 1980-01-22 GR GR61010A patent/GR73131B/el unknown
- 1980-01-22 JP JP625980A patent/JPS55104908A/ja active Pending
- 1980-01-23 NL NL8000439A patent/NL8000439A/nl not_active Application Discontinuation
- 1980-01-23 BE BE0/199080A patent/BE881307A/fr unknown
- 1980-01-23 ES ES487930A patent/ES487930A1/es not_active Expired
- 1980-01-23 ZA ZA00800411A patent/ZA80411B/xx unknown
- 1980-01-23 SU SU802869458A patent/SU1181529A3/ru active
- 1980-01-23 CA CA344,245A patent/CA1134119A/fr not_active Expired
- 1980-01-23 DE DE3002359A patent/DE3002359C2/de not_active Expired
- 1980-01-23 EG EG39/80A patent/EG14670A/xx active
- 1980-01-23 MA MA18908A patent/MA18711A1/fr unknown
- 1980-01-23 GB GB8002246A patent/GB2039869B/en not_active Expired
- 1980-01-23 BR BR8000411A patent/BR8000411A/pt unknown
- 1980-01-29 AT AT380/80A patent/ATA38080A/de not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| FI800183A (fi) | 1980-07-25 |
| DE3002359A1 (de) | 1980-07-31 |
| FR2447347B1 (it) | 1983-02-04 |
| SU1181529A3 (ru) | 1985-09-23 |
| MA18711A1 (fr) | 1980-10-01 |
| JPS55104908A (en) | 1980-08-11 |
| GB2039869A (en) | 1980-08-20 |
| ES487930A1 (es) | 1980-07-16 |
| IN151181B (it) | 1983-03-05 |
| FR2447347A1 (fr) | 1980-08-22 |
| EG14670A (en) | 1984-06-30 |
| ZA80411B (en) | 1981-01-28 |
| FI67205C (fi) | 1985-02-11 |
| ATA38080A (de) | 1991-05-15 |
| MX7288E (es) | 1988-04-15 |
| CA1134119A (fr) | 1982-10-26 |
| BR8000411A (pt) | 1980-10-21 |
| GB2039869B (en) | 1983-01-26 |
| DE3002359C2 (de) | 1982-05-19 |
| IT8047673A1 (it) | 1981-07-22 |
| IT8047673A0 (it) | 1980-01-22 |
| IL59186A (en) | 1983-12-30 |
| GR73131B (it) | 1984-02-07 |
| FI67205B (fi) | 1984-10-31 |
| IL59186A0 (en) | 1980-05-30 |
| US4369169A (en) | 1983-01-18 |
| NL8000439A (nl) | 1980-07-28 |
| BE881307A (fr) | 1980-07-23 |
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