SU1668292A1 - Method for concentrating carbonate containing phosphate raw material - Google Patents
Method for concentrating carbonate containing phosphate raw material Download PDFInfo
- Publication number
- SU1668292A1 SU1668292A1 SU884623877A SU4623877A SU1668292A1 SU 1668292 A1 SU1668292 A1 SU 1668292A1 SU 884623877 A SU884623877 A SU 884623877A SU 4623877 A SU4623877 A SU 4623877A SU 1668292 A1 SU1668292 A1 SU 1668292A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- raw material
- product
- grinding
- phosphate
- containing phosphate
- Prior art date
Links
- 229910019142 PO4 Inorganic materials 0.000 title claims abstract description 17
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 title claims abstract description 15
- 239000010452 phosphate Substances 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 title claims abstract description 11
- 239000002994 raw material Substances 0.000 title claims abstract description 10
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 title abstract 2
- 239000002245 particle Substances 0.000 claims abstract description 6
- 239000012141 concentrate Substances 0.000 claims abstract description 5
- 235000021317 phosphate Nutrition 0.000 abstract description 13
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 abstract description 4
- 238000000926 separation method Methods 0.000 abstract description 4
- 229910000147 aluminium phosphate Inorganic materials 0.000 abstract description 2
- 239000003337 fertilizer Substances 0.000 abstract description 2
- 235000013312 flour Nutrition 0.000 abstract description 2
- 150000002681 magnesium compounds Chemical class 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000002367 phosphate rock Substances 0.000 abstract description 2
- 150000003013 phosphoric acid derivatives Chemical class 0.000 abstract description 2
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 abstract description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract 1
- 239000011574 phosphorus Substances 0.000 abstract 1
- 229910052698 phosphorus Inorganic materials 0.000 abstract 1
- 238000012545 processing Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- ZFXVRMSLJDYJCH-UHFFFAOYSA-N calcium magnesium Chemical compound [Mg].[Ca] ZFXVRMSLJDYJCH-UHFFFAOYSA-N 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Fertilizers (AREA)
Abstract
Изобретение относитс к области обогащени природных фосфатов - сырь дл производства фосфора, фосфорной кислоты и их производных, а также фосфоритной муки, используемой непосредственно в качестве удобрени . Целью изобретени вл етс повышение содержани P2O5 в продукте при обеспечении содержани в нем соединений магни не более 3 мас.%. Способ заключаетс в дроблении карбонатсодержащего фосфатного сырь , его обжиге, измельчении обожженного продукта в режиме одного удара при скорости движени частиц 15 - 55 м/с, сухой сепарации продукта измельчени с получением фосфатного концентрата. 1 табл.This invention relates to the field of the enrichment of natural phosphates - a raw material for the production of phosphorus, phosphoric acid and their derivatives, as well as phosphorite flour, used directly as a fertilizer. The aim of the invention is to increase the content of P 2 O 5 in the product while ensuring that the content of magnesium compounds in it does not exceed 3% by weight. The method consists in crushing carbonate-containing phosphate raw material, burning it, grinding the burned product in single impact mode at a particle speed of 15 - 55 m / s, and dry separation of the grinding product to produce phosphate concentrate. 1 tab.
Description
Изобретение относитс к обогащению природных фосфатов - сырь дл производства , фосфорной кислоты и их про- Иоводных, а также фосфоритной муки, используемой непосредственно в качестве удобрени .The invention relates to the enrichment of natural phosphates - raw materials for production, phosphoric acid and their derivatives, as well as phosphorite flour, which is used directly as a fertilizer.
Целью изобретени вл етс повышение содержани PaOs в продукте при обес- пэчении содержани а нем соединений магни не более 3 мзс.%.The aim of the invention is to increase the content of PaOs in the product while ensuring that the content of magnesium compounds in it is no more than 3 ms3%.
Пример. Фосфатное сырье, содержащее , мзс.%: 22,7, СаО 40,0; МдО 4,1; SI02 14,6; Н20з 2,3; F.2,7; С02 9,7, подвергают дроблению на щековой дробилке с получением материала фракции минус 6 мм, который обжигают в печи псевдоожиженно- го сло пои 850°С с получением обожженного фосфата, содержащего, мас.%: P20s26,2;Example. Phosphate raw materials containing, msec.%: 22.7, CaO 40.0; MDO 4.1; SI02 14.6; Н20з 2.3; F.2,7; C02 9.7, crushed on a jaw crusher to obtain material of a fraction of minus 6 mm, which is calcined in a fluidized bed furnace at a temperature of 850 ° C to obtain calcined phosphate containing, in wt.%: P20s26.2;
СаО 43,2; МдО 3,4; SI02 15,8; R20a 2,9; F 2,6; С02 0,9. Продукт после обжига измельчают в режиме одного удара на центробежной ударной мельнице (ЦУМ) при скорости движени частиц 30 м/с, после чего подвергают сухой сепарации известными способами (механическое грохочение, пневмосепара- ци )с выделением фосконцентрата, пригодного дл кислотной переработки, содержащего, мас.%: P20s 28,7; СаО 42,5; МдО 1,9; SI02 16,4; Я20зЗ,1; СОа 1,0с выхо- дом P20s в обогащенный фосфат (фоскон- центрат) 87,4%. Образующийс отход - кальциевомагниевый продукт (около 10% от общей массы обожженного фосфата, поступающего на сухую сепарацию), характеризуетс следующим составом, мас.%: P20s 19,3; СаО 39,6; МдО 10,5; Si02 8,4; С02 1,5.CaO 43.2; MDO 3.4; SI02 15.8; R20a 2.9; F 2,6; C02 0.9. After firing, the product is ground in a single impact mode on a centrifugal impact mill (CUM) at a particle speed of 30 m / s, and then subjected to dry separation by known methods (mechanical screening, pneumatic separation) with release of a phos concentrate, suitable for acid processing, containing wt.%: P20s 28,7; CaO 42.5; MDO 1.9; SI02 16.4; Я20зЗ, 1; COA 1.0c, output of P20s to enriched phosphate (phosoconcentrate) 87.4%. The resulting waste is a calcium-magnesium product (about 10% of the total mass of calcined phosphate fed to the dry separation), characterized by the following composition, wt.%: P20s 19.3; CaO 39.6; MDO 10.5; Si02 8.4; C02 1.5.
ОABOUT
оabout
0000
ю ю юyu yu
В таблице представлены данные по качеству продукта в зависимости от скорости частиц при измельчении, а также сравнительные данные при переработке сырь того же качества по известному способу.The table presents data on the quality of the product, depending on the speed of the particles during grinding, as well as comparative data during the processing of raw materials of the same quality by a known method.
Из таблицы следует, что при увеличении скорости движени частиц обожженного фосфата происходит его переизмельчение (опыты 1 и 2) и выход РаОб оказываетс ниже уровн известного способа.From the table it follows that with an increase in the speed of movement of the particles of calcined phosphate, it is overgrown (experiments 1 and 2) and the yield of PaOb is lower than the level of the known method.
При снижении скорости движени частиц (опыт 6) выход PaOs в обогащенный фосфат (фосконцентрат) остаетс выше его величины в услови х прототипа, удовлетворительным остаетс и содержание PaOs в фосконцентрате, однако содержание МдО в нем достигает 3,2%.By reducing the particle movement speed (test 6), the yield of PaOs in enriched phosphate (phosphate concentrate) remains above its value under the conditions of the prototype, the PaOs content in phosphate concentrate also remains satisfactory, however, the MgO content in it reaches 3.2%.
Предлагаемый способ практически исключает экологические проблемы, возникающие при обогащении фосфатного сырь The proposed method virtually eliminates environmental problems arising from the enrichment of phosphate raw materials.
традиционными мокрыми способами, которые привод т к необходимости обезвреживани и сброса огромного объема сточных вод; в предлагаемом способе обогащение рсуществл етс сухим способом, практически без затрат воды на технологические нужды.traditional wet methods that necessitate the disposal and discharge of a huge amount of wastewater; in the proposed method, the enrichment of the p is carried out by the dry method, with virtually no water for technological needs.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU884623877A SU1668292A1 (en) | 1988-12-21 | 1988-12-21 | Method for concentrating carbonate containing phosphate raw material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU884623877A SU1668292A1 (en) | 1988-12-21 | 1988-12-21 | Method for concentrating carbonate containing phosphate raw material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU1668292A1 true SU1668292A1 (en) | 1991-08-07 |
Family
ID=21416773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU884623877A SU1668292A1 (en) | 1988-12-21 | 1988-12-21 | Method for concentrating carbonate containing phosphate raw material |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU1668292A1 (en) |
-
1988
- 1988-12-21 SU SU884623877A patent/SU1668292A1/en active
Non-Patent Citations (1)
| Title |
|---|
| Патент Фран-дии Мг 2486924, кл, С 01 325/01, 1982, * |
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