SU472107A1 - The method of producing sodium trimetaphosphate - Google Patents
The method of producing sodium trimetaphosphateInfo
- Publication number
- SU472107A1 SU472107A1 SU1698000A SU1698000A SU472107A1 SU 472107 A1 SU472107 A1 SU 472107A1 SU 1698000 A SU1698000 A SU 1698000A SU 1698000 A SU1698000 A SU 1698000A SU 472107 A1 SU472107 A1 SU 472107A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- sodium trimetaphosphate
- producing sodium
- sodium
- trimetaphosphate
- nah2po4
- 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
- C01B25/26—Phosphates
- C01B25/38—Condensed phosphates
- C01B25/44—Metaphosphates
- C01B25/445—Metaphosphates of alkali metals
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Removal Of Specific Substances (AREA)
Description
(54) СПОСОБ ПОЛУЧЕНИЯ ТРИМЕТАФОСФАТА НАТРИЯ(54) METHOD OF OBTAINING SODIUM TRIMETAPHSPHPATE
1one
Изобретение относитс к области получени соединений натри , в частности к способу получени триметафосфата натри .The invention relates to the field of the preparation of sodium compounds, in particular, to a process for the production of sodium trimetaphosphate.
Известен способ получени триметафосфата натри Путем дегидратации однозаменденного фосфата «атри в смеси с 10-50% фосфата натри лри температуре пор дка 500°С.A known method for producing sodium trimetaphosphate. By dehydrating mono-substituted phosphate "atri in a mixture with 10-50% sodium phosphate at a temperature of about 500 ° C.
Цель изобретени - упрощение способа, т. е. проведение процесса непрерывно и при более низких температурах и получение продукта- высокого качества, содержандего минимальное количество соли Маддрел .The purpose of the invention is to simplify the process, i.e., to conduct the process continuously and at lower temperatures and to obtain a high-quality product containing a minimum amount of Maddrel salt.
Дл этого лри дегидратации в смесь ввод т триметафосфат «атри -при соотношении компонентов (ЫаРОз)з: NaH2PO4 от 1:1 до 10 : 1, преимущественно от 4 : 1 до 6 : 1 и процесс ведут при 370-400°С.For this purpose, trimetaphosphate ' is introduced into the mixture at a ratio of components (HaOrH) h: NaH2PO4 from 1: 1 to 10: 1, preferably from 4: 1 to 6: 1 and the process is carried out at 370-400 ° C.
Полученный продукт содержит 99,0-99,4% (Ма2РОз)з и 0,12-0,5% соли Маддрел .The resulting product contains 99.0-99.4% (Ma2ROz) s and 0.12-0.5% Maddrel salt.
Пример. Во вращающуюс трубчатую Example. In a rotating tubular
печь помещают 50 кг (ЫаРОз)з, 125 кг NaH2PO4 и 0,125 кг ЫаНаРОз, отношение (МаРОз)з: NaH2PO4 равно 4, и смесь нагревают до температуры 390-400°С, врем пребывани материала в печи 5 мин. Полученный продукт содержит 99,5% (КаРОз)з и 0,12% соли Маддрел .the furnace is placed 50 kg (HaPa3) h, 125 kg of NaH2PO4 and 0.125 kg HaNaRoz, the ratio (MOROZ) h: NaH2PO4 is 4, and the mixture is heated to a temperature of 390-400 ° C, the residence time of the material in the furnace is 5 minutes. The resulting product contains 99.5% (KAROZ) s and 0.12% Maddrel salt.
Предмет изобретени Subject invention
Способ получени триметафосфата натри путем дегидратации однозамещенного ортофосфата натри в присутствии фосфата натри при повышенной температуре, от л и ч а ющийс тем, что, с целью -прощени способа , при дегидратации iB смесь ввод т триметафосфат натри при соотношении компонентов (NaP03)3:NaH2PO4 от 1 : 1 до 10: 1, преимущественно от 4: 1 до 6:1 и процесс ведут при 370-400°С.A method of producing sodium trimetaphosphate by dehydrating monosubstituted sodium orthophosphate in the presence of sodium phosphate at elevated temperature, from the fact that, in order to simplify the process, sodium trimetaphosphate is introduced at a ratio of (NaP03) 3: NaH2PO4 to dehydrate the iB from 1: 1 to 10: 1, preferably from 4: 1 to 6: 1 and the process is carried out at 370-400 ° C.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DD15009670A DD85761A1 (en) | 1970-09-14 | 1970-09-14 | Process for the preparation of sodium trimetaphosphate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU472107A1 true SU472107A1 (en) | 1975-05-30 |
Family
ID=5482950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU1698000A SU472107A1 (en) | 1970-09-14 | 1971-09-13 | The method of producing sodium trimetaphosphate |
Country Status (6)
| Country | Link |
|---|---|
| AT (1) | AT317847B (en) |
| CS (1) | CS156572B1 (en) |
| DD (1) | DD85761A1 (en) |
| FR (1) | FR2105907A5 (en) |
| HU (1) | HU163333B (en) |
| SU (1) | SU472107A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19724613B4 (en) * | 1997-06-11 | 2009-08-06 | Chemische Fabrik Budenheim Kg | Process for the preparation of sodium trimetaphosphate |
| CN103318861B (en) * | 2013-07-10 | 2015-10-28 | 常州宏福高端膦技术研发中心有限公司 | Prepare the method for phosphuret-(t)ed hydrogen and Trisodium trimetaphosphate simultaneously |
-
1970
- 1970-09-14 DD DD15009670A patent/DD85761A1/en unknown
-
1971
- 1971-07-28 AT AT659971A patent/AT317847B/en not_active IP Right Cessation
- 1971-08-13 CS CS588871A patent/CS156572B1/cs unknown
- 1971-08-23 FR FR7130524A patent/FR2105907A5/en not_active Expired
- 1971-09-13 SU SU1698000A patent/SU472107A1/en active
- 1971-09-14 HU HUSI001227 patent/HU163333B/hu unknown
Also Published As
| Publication number | Publication date |
|---|---|
| AT317847B (en) | 1974-09-10 |
| CS156572B1 (en) | 1974-08-23 |
| FR2105907A5 (en) | 1972-04-28 |
| DD85761A1 (en) | 1971-11-12 |
| HU163333B (en) | 1973-07-28 |
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