CO6210122A1 - CALCIUM NITRATE - Google Patents
CALCIUM NITRATEInfo
- Publication number
- CO6210122A1 CO6210122A1 CO09038652A CO09038652A CO6210122A1 CO 6210122 A1 CO6210122 A1 CO 6210122A1 CO 09038652 A CO09038652 A CO 09038652A CO 09038652 A CO09038652 A CO 09038652A CO 6210122 A1 CO6210122 A1 CO 6210122A1
- Authority
- CO
- Colombia
- Prior art keywords
- mol
- decantation
- stage
- centrifugation
- calcium nitrate
- Prior art date
Links
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Fertilizers (AREA)
- Removal Of Specific Substances (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Treatment Of Sludge (AREA)
Abstract
Un método para la purificación de soluciones o fundidos de nitrato de calcio, caracterizado porque este comprende la etapa de decantación. El método de acuerdo con la reivindicación 1, caracterizado porque la decantación se sigue por centrifugación de la fase de lodo. El método de acuerdo con la reivindicación 1 o 2, caracterizado porque el lodo se recicla por retorno a la etapa de digestión de fosfato de roca. El método de acuerdo con la reivindicación 1, 2, o 3, caracterizado porque este comprende las etapas de a) digestión de fosfato de roca, b) enfriamiento/cristalización, c) filtración, d) lavado de cristales, e) disolver y diluir en 1.3-1,75 kg/l en temperaturas entre 20-9 C°C f) neutralización g) adición de floculante y ajuste de la relación mol P/mol F h) decantación i) centrifugación de la fase de lodo y reciclado posible del lodo a la etapa a) j) evaporación k) particulación. El método de acuerdo con la reivindicación 4, caracterizado porque en la etapa e) el fundido se diluye a aproximadamente 1.6 kg/l a 70° C. El método de acuerdo con la reivindicación 4 o 5, caracterizado porque en la etapa g) la mol P/mol F se ajusta por encima de 0.30 preferiblemente por encima de 0.45. El método de acuerdo con la reivindicación 4, 5 o 6, caracterizado porque la decantación en la etapa h) se lleva a cabo en un tanque de decantación equipado con placas delgadas, laminillas.A method for the purification of calcium nitrate solutions or melts, characterized in that it comprises the decantation stage. The method according to claim 1, characterized in that the decantation is followed by centrifugation of the mud phase. The method according to claim 1 or 2, characterized in that the sludge is recycled by return to the step of digestion of rock phosphate. The method according to claim 1, 2, or 3, characterized in that it comprises the steps of a) rock phosphate digestion, b) cooling / crystallization, c) filtration, d) crystal washing, e) dissolving and diluting at 1.3-1.75 kg / l at temperatures between 20-9 ° C f) neutralization g) addition of flocculant and adjustment of the ratio mol P / mol F h) settling i) centrifugation of the sludge phase and possible recycling from mud to stage a) j) evaporation k) particulation. The method according to claim 4, characterized in that in step e) the melt is diluted to approximately 1.6 kg / 70 ° C. The method according to claim 4 or 5, characterized in that in stage g) the mol P / mol F is set above 0.30 preferably above 0.45. The method according to claim 4, 5 or 6, characterized in that the decantation in step h) is carried out in a settling tank equipped with thin plates, lamellae.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO20081853A NO332615B1 (en) | 2008-04-16 | 2008-04-16 | Method of purifying calcium nitrate solutions or melts |
Publications (1)
Publication Number | Publication Date |
---|---|
CO6210122A1 true CO6210122A1 (en) | 2010-10-20 |
Family
ID=41218972
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CO09038652A CO6210122A1 (en) | 2008-04-16 | 2009-04-16 | CALCIUM NITRATE |
Country Status (7)
Country | Link |
---|---|
CN (2) | CN104085910A (en) |
CO (1) | CO6210122A1 (en) |
CZ (1) | CZ2009222A3 (en) |
NO (1) | NO332615B1 (en) |
PL (1) | PL220612B1 (en) |
RU (1) | RU2414426C2 (en) |
ZA (1) | ZA200901756B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2507154C1 (en) * | 2012-08-14 | 2014-02-20 | Открытое Акционерное Общество "Завод минеральных удобрений Кирово-Чепецкого химического комбината" (ОАО "ЗМУ КЧХК") | Method of obtaining purified solution of calcium nitrate |
CN106629805B (en) * | 2016-10-17 | 2017-11-21 | 交城县三喜化工有限公司 | A kind of method and its device for producing calcium nitrate liquid |
-
2008
- 2008-04-16 NO NO20081853A patent/NO332615B1/en not_active IP Right Cessation
-
2009
- 2009-03-11 ZA ZA2009/01756A patent/ZA200901756B/en unknown
- 2009-04-06 RU RU2009112498/05A patent/RU2414426C2/en active
- 2009-04-09 CZ CZ20090222A patent/CZ2009222A3/en unknown
- 2009-04-15 CN CN201410338685.0A patent/CN104085910A/en active Pending
- 2009-04-15 CN CNA2009101351907A patent/CN101559966A/en active Pending
- 2009-04-16 CO CO09038652A patent/CO6210122A1/en active IP Right Grant
- 2009-04-16 PL PL387815A patent/PL220612B1/en unknown
Also Published As
Publication number | Publication date |
---|---|
CN101559966A (en) | 2009-10-21 |
ZA200901756B (en) | 2010-02-24 |
NO20081853L (en) | 2009-10-19 |
RU2414426C2 (en) | 2011-03-20 |
CZ2009222A3 (en) | 2010-08-11 |
RU2009112498A (en) | 2010-10-20 |
PL220612B1 (en) | 2015-11-30 |
CN104085910A (en) | 2014-10-08 |
NO332615B1 (en) | 2012-11-19 |
PL387815A1 (en) | 2009-10-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG | Application granted |