IE35900L - Potassium dihydrogen phosphate - Google Patents
Potassium dihydrogen phosphateInfo
- Publication number
- IE35900L IE35900L IE711591A IE159171A IE35900L IE 35900 L IE35900 L IE 35900L IE 711591 A IE711591 A IE 711591A IE 159171 A IE159171 A IE 159171A IE 35900 L IE35900 L IE 35900L
- Authority
- IE
- Ireland
- Prior art keywords
- dihydrogen phosphate
- potassium dihydrogen
- phosphoric acid
- organic liquid
- precipitation
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Fertilizers (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
1318224 Potassium dihydrogen phosphate FITZWILTON Ltd 10 Dec 1971 [17 Dec 1970] 59957/70 Heading C1A A process for the production of potassium dihydrogen phosphate comprises reacting potassium chloride with phosphoric acid, or condensed phosphoric acid, in an amount such that the P : K molar ratio is in the range 1À9:1 to 2À5 : 1, at a temperature of 180-325 C. to produce a mixture containing complex phosphates, and having a residual chlorine concentration of less than 0À1% based on the weight of the reaction mixture, which are then hydrolysed with water, or a solution containing water (e.g. wet process phosphoric acid) before precipitation. Separation of the potassium dihydrogen phosphate may be achieved by crystallization but the best method is by precipitation of the potassium dihydrogen phosphate. The preferred method is by the addition of a low boiling point water-miscible organic liquid such as alcohol, ketone or soluble ether, in a weight ratio of 0À5 : 1 to 3 : 1 of organic liquid to total solution. After precipitation the organic liquid is stripped from the acid liquor by simple distillation, although other separation means are possible.
[GB1318224A]
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB5995770 | 1970-12-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IE35900L true IE35900L (en) | 1972-06-17 |
| IE35900B1 IE35900B1 (en) | 1976-06-23 |
Family
ID=10484746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IE1591/71A IE35900B1 (en) | 1970-12-17 | 1971-12-16 | Production of potassium dihydrogen phosphate |
Country Status (15)
| Country | Link |
|---|---|
| AU (1) | AU452587B2 (en) |
| BE (1) | BE776793A (en) |
| CA (1) | CA958870A (en) |
| DD (1) | DD98892A5 (en) |
| DE (1) | DE2161849B2 (en) |
| ES (1) | ES397978A1 (en) |
| FR (1) | FR2118701A5 (en) |
| GB (1) | GB1318224A (en) |
| IE (1) | IE35900B1 (en) |
| IL (1) | IL38264A (en) |
| IT (1) | IT945255B (en) |
| MX (1) | MX3021E (en) |
| NL (1) | NL155801B (en) |
| SE (1) | SE370926B (en) |
| SU (1) | SU580824A3 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8825390D0 (en) * | 1988-10-31 | 1988-11-30 | Univ Waterloo | Production of chloride-free fertilizers-11 |
| MXPA03011064A (en) | 2003-12-02 | 2004-04-28 | Grupo Cementos De Chihuahua S | Cementing compositions of containing anhydrite and procedures for its fabrication. |
| RU2597117C1 (en) * | 2015-07-14 | 2016-09-10 | Открытое акционерное общество "Реатэкс" (ОАО "Реатэкс") | Method of producing disubstituted potassium phosphate |
| CN116119634B (en) * | 2023-04-20 | 2023-06-20 | 诸城市浩天药业有限公司 | Method for improving clarity of potassium dihydrogen phosphate product prepared from corn soaking water |
-
1970
- 1970-12-17 GB GB5995770A patent/GB1318224A/en not_active Expired
-
1971
- 1971-11-30 NL NL7116474.A patent/NL155801B/en not_active IP Right Cessation
- 1971-11-30 IL IL38264A patent/IL38264A/en unknown
- 1971-12-03 IT IT54505/71A patent/IT945255B/en active
- 1971-12-07 SE SE7115679A patent/SE370926B/xx unknown
- 1971-12-07 SU SU7101723375A patent/SU580824A3/en active
- 1971-12-08 AU AU36630/71A patent/AU452587B2/en not_active Expired
- 1971-12-09 MX MX002426U patent/MX3021E/en unknown
- 1971-12-13 DE DE2161849A patent/DE2161849B2/en not_active Ceased
- 1971-12-15 DD DD159619A patent/DD98892A5/xx unknown
- 1971-12-15 ES ES397978A patent/ES397978A1/en not_active Expired
- 1971-12-16 IE IE1591/71A patent/IE35900B1/en unknown
- 1971-12-16 BE BE776793A patent/BE776793A/en unknown
- 1971-12-16 FR FR7145285A patent/FR2118701A5/fr not_active Expired
- 1971-12-17 CA CA130,364A patent/CA958870A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| AU452587B2 (en) | 1974-09-05 |
| IT945255B (en) | 1973-05-10 |
| DE2161849A1 (en) | 1972-06-22 |
| NL7116474A (en) | 1972-06-20 |
| IE35900B1 (en) | 1976-06-23 |
| NL155801B (en) | 1978-02-15 |
| FR2118701A5 (en) | 1972-07-28 |
| DD98892A5 (en) | 1973-07-12 |
| MX3021E (en) | 1980-02-13 |
| DE2161849B2 (en) | 1978-10-19 |
| CA958870A (en) | 1974-12-10 |
| GB1318224A (en) | 1973-05-23 |
| IL38264A (en) | 1974-10-22 |
| IL38264A0 (en) | 1972-01-27 |
| BE776793A (en) | 1972-04-17 |
| AU3663071A (en) | 1973-06-14 |
| SE370926B (en) | 1974-11-04 |
| SU580824A3 (en) | 1977-11-15 |
| ES397978A1 (en) | 1974-07-01 |
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