EA200900465A1 - METHOD FOR CONCENTRATING AND EXPIRATING PHOSPHORIC ACID - Google Patents
METHOD FOR CONCENTRATING AND EXPIRATING PHOSPHORIC ACIDInfo
- Publication number
- EA200900465A1 EA200900465A1 EA200900465A EA200900465A EA200900465A1 EA 200900465 A1 EA200900465 A1 EA 200900465A1 EA 200900465 A EA200900465 A EA 200900465A EA 200900465 A EA200900465 A EA 200900465A EA 200900465 A1 EA200900465 A1 EA 200900465A1
- Authority
- EA
- Eurasian Patent Office
- Prior art keywords
- phosphoric acid
- evaporator
- expirating
- concentrating
- concentration
- Prior art date
Links
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 title abstract 6
- 229910000147 aluminium phosphate Inorganic materials 0.000 title abstract 3
- 238000000034 method Methods 0.000 title abstract 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 abstract 2
- 229910052731 fluorine Inorganic materials 0.000 abstract 2
- 239000011737 fluorine Substances 0.000 abstract 2
- 235000011389 fruit/vegetable juice Nutrition 0.000 abstract 2
- 150000003013 phosphoric acid derivatives Chemical class 0.000 abstract 2
- 229910019142 PO4 Inorganic materials 0.000 abstract 1
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 239000007864 aqueous solution Substances 0.000 abstract 1
- 230000008020 evaporation Effects 0.000 abstract 1
- 238000001704 evaporation Methods 0.000 abstract 1
- 239000003337 fertilizer Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 235000021317 phosphate Nutrition 0.000 abstract 1
Landscapes
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Fertilizers (AREA)
Abstract
Изобретение относится к области концентрирования и обесфторивания фосфорной кислоты, широко используемой в производстве комплексных удобрений, фосфорных солей и кормовых фосфатов. Способ концентрирования и обесфторивания фосфорной кислоты, включающий её упаривание в выпарном аппарате при смешении с водным компонентом, абсорбцию фтора из сокового пара, выходящего из выпарного аппарата. В качестве водного компонента используют водный раствор, который вводят в зону с избыточным давлением циркуляционного контура выпарного аппарата в количестве 0,2-0,4 т на 1 т РО, а соковый пар выводят при содержании фтора равным 0,8-1,2.The invention relates to the field of concentration and defluoridation of phosphoric acid, widely used in the manufacture of complex fertilizers, phosphate salts and feed phosphates. The method of concentration and defluorization of phosphoric acid, including its evaporation in an evaporator when mixed with an aqueous component, the absorption of fluorine from the juice vapor leaving the evaporator. An aqueous solution is used as the aqueous component, which is introduced into the zone with an overpressure of the circulation loop of the evaporator in an amount of 0.2-0.4 tons per 1 ton of PO, and the juice vapor is removed when the fluorine content is 0.8-1.2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EA200900465A EA015200B1 (en) | 2009-04-20 | 2009-04-20 | Method of concentrating and defluorination of phosphoric acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EA200900465A EA015200B1 (en) | 2009-04-20 | 2009-04-20 | Method of concentrating and defluorination of phosphoric acid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EA200900465A1 true EA200900465A1 (en) | 2010-10-29 |
| EA015200B1 EA015200B1 (en) | 2011-06-30 |
Family
ID=43088206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EA200900465A EA015200B1 (en) | 2009-04-20 | 2009-04-20 | Method of concentrating and defluorination of phosphoric acid |
Country Status (1)
| Country | Link |
|---|---|
| EA (1) | EA015200B1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108313995A (en) * | 2018-04-13 | 2018-07-24 | 云南磷化集团有限公司 | Wet-process phosphoric acid concentration defluorinate integral method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3544269A (en) * | 1967-02-27 | 1970-12-01 | Whiting Corp | Method for producing defluorinated phosphoric acid |
| NL7108821A (en) * | 1970-09-12 | 1972-03-14 | ||
| RU2327634C1 (en) * | 2007-03-06 | 2008-06-27 | Открытое акционерное общество "Научно-исследовательский институт по удобрениям и инсектофунгицидам им.Я.В.Самойлова" | Method of concentrating extraction phosphoric acid with simultaneous obtainig of hydrofluorosilicic acid |
-
2009
- 2009-04-20 EA EA200900465A patent/EA015200B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| EA015200B1 (en) | 2011-06-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM4A | Lapse of a eurasian patent due to non-payment of renewal fees within the time limit in the following designated state(s) |
Designated state(s): AM AZ KG MD TJ TM |
|
| MM4A | Lapse of a eurasian patent due to non-payment of renewal fees within the time limit in the following designated state(s) |
Designated state(s): BY KZ RU |