SU251554A1 - METHOD OF DECOMPOSITION OF PHOSF01RS CONTAINING RAW MATERIALS - Google Patents
METHOD OF DECOMPOSITION OF PHOSF01RS CONTAINING RAW MATERIALSInfo
- Publication number
- SU251554A1 SU251554A1 SU1201592A SU1201592A SU251554A1 SU 251554 A1 SU251554 A1 SU 251554A1 SU 1201592 A SU1201592 A SU 1201592A SU 1201592 A SU1201592 A SU 1201592A SU 251554 A1 SU251554 A1 SU 251554A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- decomposition
- raw materials
- containing raw
- phosf01rs
- autoclave
- Prior art date
Links
- 239000002994 raw material Substances 0.000 title description 4
- 238000000354 decomposition reaction Methods 0.000 title description 3
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium monoxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 3
- 238000002425 crystallisation Methods 0.000 description 3
- 230000005712 crystallization Effects 0.000 description 3
- 239000000706 filtrate Substances 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 3
- 239000011574 phosphorus Substances 0.000 description 3
- 229910052698 phosphorus Inorganic materials 0.000 description 3
- 235000012239 silicon dioxide Nutrition 0.000 description 3
- 229910001948 sodium oxide Inorganic materials 0.000 description 3
- 239000001488 sodium phosphate Substances 0.000 description 3
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 3
- 229910000406 trisodium phosphate Inorganic materials 0.000 description 3
- 235000019801 trisodium phosphate Nutrition 0.000 description 3
- DLYUQMMRRRQYAE-UHFFFAOYSA-N Phosphorus pentoxide Chemical compound O1P(O2)(=O)OP3(=O)OP1(=O)OP2(=O)O3 DLYUQMMRRRQYAE-UHFFFAOYSA-N 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 229910052681 coesite Inorganic materials 0.000 description 2
- 229910052906 cristobalite Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052904 quartz Inorganic materials 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 229910052682 stishovite Inorganic materials 0.000 description 2
- 229910052905 tridymite Inorganic materials 0.000 description 2
- 241000005139 Lycium andersonii Species 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N Silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N Sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K [O-]P([O-])([O-])=O Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- UKWHYYKOEPRTIC-UHFFFAOYSA-N mercury(II) oxide Inorganic materials [Hg]=O UKWHYYKOEPRTIC-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N silicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Description
Изобретение относитс к области переработки фосфорсодержащего сырь .This invention relates to the processing of phosphorus-containing raw materials.
Известен способ получени удобрени разложением фосфорсодержащего сырь щелочью концентрацией 45% в присутствии «ремнийсодержащего материала, например силиката натри , при температуре 230°С и давлении пор дка 13 кг/см2.A known method for producing a fertilizer by decomposing a phosphorus-containing raw material with an alkali at a concentration of 45% in the presence of a belt-containing material, such as sodium silicate, at a temperature of 230 ° C and a pressure of about 13 kg / cm2.
С целью получени тринатрийфосфата предлагаетс проводить процесс разложени при отношении Ж : Т, равном 7-10:1 и мол рном отношении SiO2 : СаО, равном 2,5-3,5 : 1. Далее пульпу фильтруют и из фильтрата кристаллизацией выдел ют готовый продукт. Выход его 85-90%.In order to obtain trisodium phosphate, it is proposed to carry out a decomposition process with a ratio W: T equal to 7-10: 1 and a molar ratio SiO2: CaO equal to 2.5-3.5: 1. Next, the pulp is filtered and the final product is crystallized from the filtrate by crystallization. . Its output is 85-90%.
Пример. 3,3 г фосфоритового концентрата Каратау (24,6% РгОд; 40,4% СаО; 17,0% SiOz) в смеси с 3,85 г кремнекислоты (96,5% ВЮ) обрабатывают в автоклаве 60 мл щелочного раствора, концентрацией 300 г/л окиси натри при температуре 270°С в течение часа.Example. 3.3 g of Karatau phosphate concentrate (24.6% Prog; 40.4% CaO; 17.0% SiOz) mixed with 3.85 g of silicic acid (96.5% WU) are treated in an autoclave with 60 ml of an alkaline solution, the concentration of 300 g / l of sodium oxide at 270 ° C for one hour.
По окончании опыта автоклав быстро охлаждают , содержимое его разгружают на вакуумную воронку, твердую и жидкую фазы раздел ют . Фильтрат с содержанием 14,6 г/л п тиокиси фосфора направл ют на кристаллизациюAt the end of the experiment, the autoclave is rapidly cooled, its contents are discharged into a vacuum funnel, and the solid and liquid phases are separated. The filtrate containing 14.6 g / l phosphorus pentoxide is sent to crystallization
Ё стекл нный кристаллизатор с вод ной рубашкой . Кристаллизацию ведут кри перемеил вании в течение 1-2 чйг при 40°С.E glass jacket with water jacket. Crystals are crystallized by stirring for 1-2 chig at 40 ° C.
Количество тринатрийфосфата после разделени фаз на .вакуумной вороике составл ет 3,7 г. Состав соли (в%) ; Na, 25,2; РоО-, 17,8; НгО 57,0.The amount of trisodium phosphate after phase separation on a vacuum is 3.7 g. Salt composition (%); Na, 25.2; RoO-, 17.8; HgO 57.0.
Автоклавный шлам в количестве 5,4 г, содержащий 22% NaoO, обрабатывают водой (50 мл) в автоклаве при температуре 225°С в течение 3 час. При этом получают отвальный шлам с содержанием 2% окиси натри и щелочной раствор, содержащий 21,4 г/л окиси натри .The autoclave slurry in the amount of 5.4 g, containing 22% NaoO, is treated with water (50 ml) in an autoclave at a temperature of 225 ° C for 3 hours. At the same time get the dump sludge with a content of 2% sodium oxide and an alkaline solution containing 21.4 g / l of sodium oxide.
Предмет изобретени Subject invention
Способ разложени фосфорсодержащего сырь путем обработки его щелочью в присутствии силикатсодерл ащего материала при нагревании и повышенном давлении, отличающийс тем, что, с целью получени тринатрийфосфата , отношение Л : Т берут 7-10:1, а мол рное отношение SiO2: СаО берут 2,5-3,5:1 с последующей фильтрацией пульпы и выделением из фильтрата кристаллизацией готового иродукта.The method of decomposition of phosphorus-containing raw materials by treating it with alkali in the presence of silicate-containing material under heating and elevated pressure, characterized in that in order to obtain trisodium phosphate, the ratio L: T takes 7-10: 1, and the molar ratio SiO2: CaO takes 2, 5-3,5: 1, followed by filtration of the pulp and the crystallization of the finished product from the filtrate.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU251554A1 true SU251554A1 (en) |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2801382C1 (en) * | 2023-01-25 | 2023-08-08 | Федеральное государственное бюджетное учреждение науки Институт химии твердого тела Уральского отделения Российской академии наук | Phosphate raw material processing method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2801382C1 (en) * | 2023-01-25 | 2023-08-08 | Федеральное государственное бюджетное учреждение науки Институт химии твердого тела Уральского отделения Российской академии наук | Phosphate raw material processing method |
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