PL753B1 - A method of producing phosphorus fertilizer with the properties of Thomas' zuzla. - Google Patents
A method of producing phosphorus fertilizer with the properties of Thomas' zuzla. Download PDFInfo
- Publication number
- PL753B1 PL753B1 PL753A PL75320A PL753B1 PL 753 B1 PL753 B1 PL 753B1 PL 753 A PL753 A PL 753A PL 75320 A PL75320 A PL 75320A PL 753 B1 PL753 B1 PL 753B1
- Authority
- PL
- Poland
- Prior art keywords
- properties
- zuzla
- thomas
- phosphorus fertilizer
- producing phosphorus
- Prior art date
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- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 title claims description 3
- 239000011574 phosphorus Substances 0.000 title claims description 3
- 229910052698 phosphorus Inorganic materials 0.000 title claims description 3
- 238000000034 method Methods 0.000 title claims 3
- 239000003337 fertilizer Substances 0.000 title claims 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 239000010440 gypsum Substances 0.000 claims description 5
- 229910052602 gypsum Inorganic materials 0.000 claims description 5
- 239000002367 phosphate rock Substances 0.000 claims description 5
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 238000001354 calcination Methods 0.000 claims description 2
- 239000003054 catalyst Substances 0.000 claims description 2
- 150000003839 salts Chemical class 0.000 claims description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims 1
- 229910052748 manganese Inorganic materials 0.000 claims 1
- 239000011572 manganese Substances 0.000 claims 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 235000021317 phosphate Nutrition 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 230000002730 additional effect Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- VFNGKCDDZUSWLR-UHFFFAOYSA-N disulfuric acid Chemical compound OS(=O)(=O)OS(O)(=O)=O VFNGKCDDZUSWLR-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Description
Otrzymywanie nawojów fosforawych z naturalnych fosforytów, z pominieciem kwasu siarkowego, od dluzszego juz czasu zajmuje techników calego swiata. Przejscie od wzoru CasP20.a do Ca±P209 uskutecznia sie zajpomioica tylko wysokich tewupeiiaitiur, lub prazenia surowych fosforytów z wapnem, weglanem wapnia, alkaljami i t. d. Dotych¬ czasowe próby dawaly produkt o nieznacz¬ nej rozpuszczalnosci, lub byly niewykonalne technicznie.Sposób niniejszy przeróbki fosforytów su¬ rowych niai produkt o wlasnoisciilaich zuzli Tho¬ masa polega na dzialaniu gipsu w wysokich temperaturach (przy ogrzewaniu powolnem) na surowy fosforyt.Dzialanie dodatkowe gipsu w tych wa¬ runkach sprowadza sie do tlenku wapnia in statu nascendi, jako produktu rozpadu gipsu, jak równiez do czynnego bezwodnika kwasu siarkowego. Obecnosc katalizatorów (np. tlenków lub soli zelaza, manganu i innych) wplywa bardzo nieznacznie na procentowy wynik gotowego produktu, przyspiesza jed¬ nak nieco przebieg reakcji.Wypalanie moze byc uskutecznione w piecach obrotowych (rotacyjnych), sza-ch- towych lub hofmanowskich. Produkt do wy¬ palania miele sie na zwyklych mlynach ce¬ mentowych. Jako produkt uboczny otrzymu¬ je sie kwas siarkowy.Celem praktycznego wykonania wynalaz¬ ku postepujemy w sposób nastepujacy: Fosforyt mielony miesza sie dokladnie z mielonym gipsem w ilosci 60—80% (zalez¬ nie od skladu surowego fosforytu) i poddaje sie powolnemu prazeniu az do temperatury 1400° C. Po ositudzeniu miele sie.Rozpuszczalnosc w 2%-wym kwasie cy¬ trynowym wynosi 14—18%. PL PLIt has been taking technicians all over the world for a long time to obtain phosphorus bundles from natural phosphates, omitting sulfuric acid. The transition from the formula CasP20.a to Ca ± P209 results in only high tewupeiaitiur, or roasting of raw phosphate rock with lime, calcium carbonate, alkali, etc. crude phosphate rock and a product with the properties of the bad Thom mass consists in the action of gypsum at high temperatures (when heated slowly) on the raw phosphate rock. The additional effect of gypsum under these conditions is reduced to calcium oxide in statu nascendi, as a product of gypsum decomposition, as well as to active sulfuric acid anhydride. The presence of catalysts (eg iron, manganese, etc. oxides or salts) has a very slight effect on the percentage of the finished product, but it slightly accelerates the course of the reaction. Firing may be effective in rotary (rotary), iron, or Hofman furnaces. The firing product is ground on conventional cement mills. Sulfuric acid is obtained as a by-product. In order to implement the invention, we proceed as follows: Ground phosphate is mixed thoroughly with ground gypsum in an amount of 60-80% (depending on the composition of raw phosphate rock) and subjected to slow calcination until to 1400 ° C. After settling, the ground is ground. The solubility in 2% citric acid is 14-18%. PL PL
Claims (2)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| PL753B1 true PL753B1 (en) | 1924-10-31 |
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