GB1491500A - Method of making alkali metal phosphates from wet-process phosphoric acid - Google Patents
Method of making alkali metal phosphates from wet-process phosphoric acidInfo
- Publication number
- GB1491500A GB1491500A GB47635/74A GB4763574A GB1491500A GB 1491500 A GB1491500 A GB 1491500A GB 47635/74 A GB47635/74 A GB 47635/74A GB 4763574 A GB4763574 A GB 4763574A GB 1491500 A GB1491500 A GB 1491500A
- Authority
- GB
- United Kingdom
- Prior art keywords
- alkali metal
- aqueous phase
- phosphoric acid
- alkali
- metal phosphates
- 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
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 title abstract 6
- 229910000318 alkali metal phosphate Inorganic materials 0.000 title abstract 5
- 229910000147 aluminium phosphate Inorganic materials 0.000 title abstract 3
- 238000000034 method Methods 0.000 title abstract 3
- 238000004519 manufacturing process Methods 0.000 title 1
- 239000008346 aqueous phase Substances 0.000 abstract 5
- 229910052783 alkali metal Inorganic materials 0.000 abstract 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract 3
- 150000001340 alkali metals Chemical class 0.000 abstract 3
- BBMCTIGTTCKYKF-UHFFFAOYSA-N 1-heptanol Chemical compound CCCCCCCO BBMCTIGTTCKYKF-UHFFFAOYSA-N 0.000 abstract 2
- 239000002585 base Substances 0.000 abstract 2
- KBPLFHHGFOOTCA-UHFFFAOYSA-N caprylic alcohol Natural products CCCCCCCCO KBPLFHHGFOOTCA-UHFFFAOYSA-N 0.000 abstract 2
- 239000000284 extract Substances 0.000 abstract 2
- ZSIAUFGUXNUGDI-UHFFFAOYSA-N hexan-1-ol Chemical compound CCCCCCO ZSIAUFGUXNUGDI-UHFFFAOYSA-N 0.000 abstract 2
- 239000003960 organic solvent Substances 0.000 abstract 2
- BWDBEAQIHAEVLV-UHFFFAOYSA-N 6-methylheptan-1-ol Chemical compound CC(C)CCCCCO BWDBEAQIHAEVLV-UHFFFAOYSA-N 0.000 abstract 1
- 101100283604 Caenorhabditis elegans pigk-1 gene Proteins 0.000 abstract 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract 1
- 239000002253 acid Substances 0.000 abstract 1
- -1 alkalimetal tripolyphosphate Chemical class 0.000 abstract 1
- 239000006286 aqueous extract Substances 0.000 abstract 1
- 238000001354 calcination Methods 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- 239000012535 impurity Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- TVMXDCGIABBOFY-UHFFFAOYSA-N n-Octanol Natural products CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 abstract 1
- 229910052698 phosphorus Inorganic materials 0.000 abstract 1
- 239000011574 phosphorus Substances 0.000 abstract 1
- 235000019832 sodium triphosphate Nutrition 0.000 abstract 1
- 239000002904 solvent Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- C01B25/46—Preparation involving solvent-solvent extraction
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
Abstract
1491500 Alkali metal phosphates USS ENGS & CONSULTANTS Inc 4 Nov 1974 [2 Nov 1973] 47635/74 Heading ClA Alkali metal phosphates are prepared by a method which comprises extracting wet-process phosphoric acid with an organic solvent, selected from n-hexanol, n-heptanol, n-octanol, iso-octanol or mixtures of these, stripping some of the acid from the solvent extract with water, treating the resulting aqueous extract with an alkali-metal base, such as NaOH, Na 2 CO 3 , Na 2 HPO 4 or Na 3 PO 4 and separating the resulting precipitated impurities to leave a first aqueous phase containing alkalimetal phosphate, and stripping further phosphoric acid from the organic solvent extract with aqueous alkali metal base to yield a second aqueous phase containing alkali-metal phosphate which is preferably combined with the first aqueous phase. The ratio of alkali metal to phosphorus in the combined aqueous phase may be adjusted so that an alkalimetal tripolyphosphate is obtained on drying the aqueous phase and calcining the dried product.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US41207773A | 1973-11-02 | 1973-11-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1491500A true GB1491500A (en) | 1977-11-09 |
Family
ID=23631507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB47635/74A Expired GB1491500A (en) | 1973-11-02 | 1974-11-04 | Method of making alkali metal phosphates from wet-process phosphoric acid |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS5083298A (en) |
| FR (1) | FR2249833B1 (en) |
| GB (1) | GB1491500A (en) |
| ZA (1) | ZA746708B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS529088A (en) * | 1975-07-11 | 1977-01-24 | Mitsubishi Chem Ind Ltd | Method for preparing polyolefin |
| US3993733A (en) * | 1975-08-14 | 1976-11-23 | Stauffer Chemical Company | Food grade alkali metal phosphates from wet process H3 PO4 |
| US3993736A (en) * | 1975-08-14 | 1976-11-23 | Stauffer Chemical Company | Food grade phosphoric acid from wet process acid |
| DE19703884C2 (en) | 1997-02-03 | 1999-04-29 | Bk Giulini Chem Gmbh & Co Ohg | Process for purifying wet process phosphoric acid |
-
1974
- 1974-10-22 ZA ZA00746708A patent/ZA746708B/en unknown
- 1974-11-01 JP JP49127041A patent/JPS5083298A/ja active Pending
- 1974-11-04 FR FR7436631A patent/FR2249833B1/fr not_active Expired
- 1974-11-04 GB GB47635/74A patent/GB1491500A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2249833A1 (en) | 1975-05-30 |
| ZA746708B (en) | 1975-11-26 |
| FR2249833B1 (en) | 1978-10-27 |
| JPS5083298A (en) | 1975-07-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |