ES464265A1 - Un procedimiento para la preparacion de tripolifosfato sodi-co. - Google Patents
Un procedimiento para la preparacion de tripolifosfato sodi-co.Info
- Publication number
- ES464265A1 ES464265A1 ES464265A ES464265A ES464265A1 ES 464265 A1 ES464265 A1 ES 464265A1 ES 464265 A ES464265 A ES 464265A ES 464265 A ES464265 A ES 464265A ES 464265 A1 ES464265 A1 ES 464265A1
- Authority
- ES
- Spain
- Prior art keywords
- aqueous solution
- preparation
- solution
- neutralized
- sodium tripolyphosphate
- 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
Links
- 238000002360 preparation method Methods 0.000 title abstract 2
- 235000019832 sodium triphosphate Nutrition 0.000 title abstract 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 abstract 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract 3
- 239000007864 aqueous solution Substances 0.000 abstract 3
- 229910000147 aluminium phosphate Inorganic materials 0.000 abstract 2
- 239000012535 impurity Substances 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 2
- 239000001488 sodium phosphate Substances 0.000 abstract 2
- 229910000162 sodium phosphate Inorganic materials 0.000 abstract 2
- 239000000243 solution Substances 0.000 abstract 2
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 abstract 2
- 238000001704 evaporation Methods 0.000 abstract 1
- 230000008020 evaporation Effects 0.000 abstract 1
- 238000006386 neutralization reaction Methods 0.000 abstract 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
- C01B25/26—Phosphates
- C01B25/30—Alkali metal phosphates
- C01B25/301—Preparation from liquid orthophosphoric acid or from an acid solution or suspension of orthophosphates
- C01B25/303—Preparation from liquid orthophosphoric acid or from an acid solution or suspension of orthophosphates with elimination of impurities
-
- 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
- C01B25/26—Phosphates
- C01B25/38—Condensed phosphates
- C01B25/40—Polyphosphates
- C01B25/41—Polyphosphates of alkali metals
- C01B25/412—Preparation from alkali metal orthophosphates
- C01B25/416—Pure alkali metal polyphosphates from impure starting materials
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Battery Electrode And Active Subsutance (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT29543/76A IT1125158B (it) | 1976-11-19 | 1976-11-19 | Miglioramenti nei procedimenti per la preparazione di tripolifosfato sodico |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES464265A1 true ES464265A1 (es) | 1978-08-01 |
Family
ID=11227618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES464265A Expired ES464265A1 (es) | 1976-11-19 | 1977-11-18 | Un procedimiento para la preparacion de tripolifosfato sodi-co. |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US4146575A (enExample) |
| AU (1) | AU501276B2 (enExample) |
| ES (1) | ES464265A1 (enExample) |
| FR (1) | FR2371382A1 (enExample) |
| GB (1) | GB1590098A (enExample) |
| IN (1) | IN146258B (enExample) |
| IT (1) | IT1125158B (enExample) |
| ZA (1) | ZA776558B (enExample) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3437686C2 (de) * | 1984-10-15 | 1986-10-02 | Hoechst Ag, 6230 Frankfurt | Verfahren zur Reduktion von Metallionen in wäßrigen Lösungen |
| DE3437684C1 (de) * | 1984-10-15 | 1986-06-05 | Hoechst Ag, 6230 Frankfurt | Verfahren zur Reduktion von Eisen und Vanadium in phosphorsaurer Lösung |
| DE3444975A1 (de) * | 1984-12-10 | 1986-06-12 | Hoechst Ag, 6230 Frankfurt | Verfahren zur entarsenierung von phosphorsauren loesungen |
| US4676963A (en) * | 1986-05-09 | 1987-06-30 | Fmc Corporation | Manufacture of sodium tripolyphosphate from wet acid |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1825965A (en) * | 1928-07-14 | 1931-10-06 | Bowker Chemical Company | Production of disodium phosphate |
| US1998182A (en) * | 1932-07-16 | 1935-04-16 | Victor Chemical Works | Production of di-sodium phosphate |
| US3081151A (en) * | 1958-09-23 | 1963-03-12 | Saint Gobain | Manufacture of alkali orthophosphates |
| GB1104900A (en) * | 1964-05-04 | 1968-03-06 | Marchon Products Ltd | Improvements in the manufacture of alkali metal phosphates |
| US3421845A (en) * | 1965-06-07 | 1969-01-14 | Hooker Chemical Corp | Production of sodium phosphates |
-
1976
- 1976-11-19 IT IT29543/76A patent/IT1125158B/it active
-
1977
- 1977-11-02 GB GB45568/77A patent/GB1590098A/en not_active Expired
- 1977-11-03 ZA ZA00776558A patent/ZA776558B/xx unknown
- 1977-11-03 US US05/848,422 patent/US4146575A/en not_active Expired - Lifetime
- 1977-11-04 IN IN1588/CAL/77A patent/IN146258B/en unknown
- 1977-11-09 FR FR7734374A patent/FR2371382A1/fr active Granted
- 1977-11-14 AU AU30597/77A patent/AU501276B2/en not_active Expired
- 1977-11-18 ES ES464265A patent/ES464265A1/es not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| IN146258B (enExample) | 1979-04-07 |
| IT1125158B (it) | 1986-05-14 |
| US4146575A (en) | 1979-03-27 |
| GB1590098A (en) | 1981-05-28 |
| FR2371382A1 (fr) | 1978-06-16 |
| ZA776558B (en) | 1978-08-30 |
| AU501276B2 (en) | 1979-06-14 |
| FR2371382B1 (enExample) | 1981-05-08 |
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