JPS5547213A - Production of high purity ammonium phosphate - Google Patents
Production of high purity ammonium phosphateInfo
- Publication number
- JPS5547213A JPS5547213A JP11960478A JP11960478A JPS5547213A JP S5547213 A JPS5547213 A JP S5547213A JP 11960478 A JP11960478 A JP 11960478A JP 11960478 A JP11960478 A JP 11960478A JP S5547213 A JPS5547213 A JP S5547213A
- Authority
- JP
- Japan
- Prior art keywords
- soln
- arsenic
- high purity
- ammonium phosphate
- monoammonium
- 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.)
- Pending
Links
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 title abstract 5
- 239000004254 Ammonium phosphate Substances 0.000 title abstract 3
- 229910000148 ammonium phosphate Inorganic materials 0.000 title abstract 3
- 235000019289 ammonium phosphates Nutrition 0.000 title abstract 3
- 229910052785 arsenic Inorganic materials 0.000 abstract 4
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 abstract 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 abstract 2
- LFVGISIMTYGQHF-UHFFFAOYSA-N ammonium dihydrogen phosphate Chemical compound [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 abstract 2
- 229910000388 diammonium phosphate Inorganic materials 0.000 abstract 2
- 235000019838 diammonium phosphate Nutrition 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-L Phosphate ion(2-) Chemical compound OP([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-L 0.000 abstract 1
- 239000003513 alkali Substances 0.000 abstract 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 abstract 1
- 235000013373 food additive Nutrition 0.000 abstract 1
- 239000002778 food additive Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 abstract 1
- 239000011261 inert gas Substances 0.000 abstract 1
- 230000003472 neutralizing effect Effects 0.000 abstract 1
- 229910052979 sodium sulfide Inorganic materials 0.000 abstract 1
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 abstract 1
Abstract
PURPOSE: To obtain high purity ammonium phosphate contg. little arsenic and Cd by treating an aq. soln. of crude monoammonium or diammonium hydrogenphosphate with a specified amt. of an alkali sulfied and/or H2S; removing the H2S with inert gas or the like; and concentrating the treated soln. to a specified range.
CONSTITUTION: An aq. soln. of monoammonium or diammonium hydrogenphosphate obtd. by neutralizing crude phosphoric acid is treated at 0W100°C for 1W3hr with Na2S or K2S and/or H2S in an amt. of 80mols or more, pref. 100W250mols to the amt. of arsenic contained in the hydrogenphosphate, and N2 gas or air is blown or counter-currently contacted to remove the residual H2S. The treated soln. is then concentrated so that the water content is not reduced to below 0.8 time as high as the monoammonium or diammonium bydrogenphosphate content by wt. When the water content is reduced to below 0.8 time, the arsenic content increases. Thus, high purity ammonium phosphate contg. little arsenic and Cd is obtd., and it is usable as a food additive.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11960478A JPS5547213A (en) | 1978-09-28 | 1978-09-28 | Production of high purity ammonium phosphate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11960478A JPS5547213A (en) | 1978-09-28 | 1978-09-28 | Production of high purity ammonium phosphate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5547213A true JPS5547213A (en) | 1980-04-03 |
Family
ID=14765498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11960478A Pending JPS5547213A (en) | 1978-09-28 | 1978-09-28 | Production of high purity ammonium phosphate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5547213A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60167119U (en) * | 1984-04-17 | 1985-11-06 | カルソニックカンセイ株式会社 | Silencer |
| JPS60167118U (en) * | 1984-04-17 | 1985-11-06 | カルソニックカンセイ株式会社 | Silencer |
| JP2017505280A (en) * | 2013-12-02 | 2017-02-16 | エコフォス・エス・アー | Phosphate source for agriculture and food industry |
-
1978
- 1978-09-28 JP JP11960478A patent/JPS5547213A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60167119U (en) * | 1984-04-17 | 1985-11-06 | カルソニックカンセイ株式会社 | Silencer |
| JPS60167118U (en) * | 1984-04-17 | 1985-11-06 | カルソニックカンセイ株式会社 | Silencer |
| JP2017505280A (en) * | 2013-12-02 | 2017-02-16 | エコフォス・エス・アー | Phosphate source for agriculture and food industry |
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