PL70843B2 - - Google Patents

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Publication number
PL70843B2
PL70843B2 PL15095471A PL15095471A PL70843B2 PL 70843 B2 PL70843 B2 PL 70843B2 PL 15095471 A PL15095471 A PL 15095471A PL 15095471 A PL15095471 A PL 15095471A PL 70843 B2 PL70843 B2 PL 70843B2
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PL
Poland
Prior art keywords
silica
ore
separation
enriched
phosphate rock
Prior art date
Application number
PL15095471A
Other languages
Polish (pl)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
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Priority to PL15095471A priority Critical patent/PL70843B2/pl
Publication of PL70843B2 publication Critical patent/PL70843B2/pl

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Description

Pierwszenstwo: Zgloszenie ogloszono: 30.05.1973 Opis patentowy opublikowano: 15.07.1974 C 70843 KI. la, 33 MKP'B03b 1/02 M i Twórcy wynalazku: Mieczyslaw Banz, Jurand Folta, Wieslaw Jura Uprawniony z patentu tymczasowego: „Biprokop" Biuro Projektów Kopalnictwa Surowców Chemicznych, Chorzów (Polska) Sposób oddzielania krzemionki z rudy fosforytowej Przedmiotem wynalazku jest sposób oddzielania krzemionki z rudy fosforytowej, zawierajacej w swym skladzie mineralogicznym weglany i krzemionke.Dotychczas znane i stosowane sa metody oddzielania krzemionki z rudy fosforytowej na drodze selektyw¬ nego kruszenia i przesiewania, flotacji jak równiez elektrostatycznie. Pierwsza z metod nadaje sie do wstepnego wzbogacania rudy i umozliwia oddzielanie rudy o zdecydowanie krzemionkowym charakterze lepiszcza.Metoda flotacji wymaga glebokiego przemialu, wielu odczynników i duzej ilosci wody, zas metoda elektro¬ statyczna na skale przemyslowa dotychczas nie jest stosowana.Celem wynalazku jest oddzielenie krzemionki z rudy fosforytowej w procesie przeróbki bez uzywania wody. Cel ten osiagnieto w ten sposób, ze wzbogacona znana metoda kalcynacji rude fosforytowa przesiewa sie, po czym poddaje sie otrzymany produkt procesowi suchego gaszenia i przesiewa powtórnie.Wedlug wynalazku, rude fosforytowa zawierajaca w swym skladzie mineralogicznym weglany i krze¬ mionke kruszy sie i wstepnie wzbogaca wedlug znanych metod. Wzbogacona rude poddaje sie procesowi kalcy¬ nacji w temp. 900-950°C, co powoduje rozklad weglanów na CaO i C02 oraz rozluznienie struktury czastek rudy.Kalcynowany produkt po ostudzeniu kierowany jest na przesiewacze na których oddziela sie najgrubsza frakcje, zawierajaca najwiecej krzemionki a stosunkowo uboga w P205. Celem polepszenia efektywnosci rozdzia¬ lu stosuje sie przed przesiewaniem suche gaszenie CaO. Suche gaszenie powoduje dodatkowe rozluznienie prazo¬ nego produktu, umozliwiajac bardziej sprawne rozdzielenie krzemionki. Wzbogacony produkt kierowany jest do mlyna obcierajacego, a nastepnie na klasyfikacje powietrzna. Poniewaz w procesie obcierania dodatkowo uwalnia sie czesc krzemionki, przewiduje sie wtórne przesiewanie przed albo po klasyfikacji powietrznej. PL PLPriority: Application announced: May 30, 1973 Patent description was published: July 15, 1974 C 70843 KI. la, 33 MKP'B03b 1/02 M and Creators of the invention: Mieczyslaw Banz, Jurand Folta, Wieslaw Jura Authorized by the provisional patent: "Biprokop" Biuro Projektów Kopalnictwa Surowców Chemicznych, Chorzów (Poland) Method of separating silica from phosphate ore The subject of the invention is a method separation of silica from phosphate rock ore containing carbon and silica in its mineralogical composition. So far, methods of separating silica from phosphate rock ore by selective crushing and screening, flotation as well as electrostatic are known and used. The first method is suitable for preliminary enrichment of the ore and it enables the separation of ores with a strongly silica binder character. The flotation method requires deep grinding, many reagents and a large amount of water, while the electrostatic method on an industrial scale has not been used so far. The purpose of the invention is to separate silica from phosphate rock ore in a process without the use of water. This goal was achieved in this p According to the invention, the phosphate ore containing carbon and silica in its mineralogical composition is crushed and pre-enriched according to known methods. The enriched ore is subjected to the process of calcination at the temperature of 900-950 ° C, which causes the decomposition of carbonates into CaO and CO 2 and the loosening of the structure of the ore particles. After cooling, the calcined product is sent to screens on which the thickest fractions containing the most silica and relatively poor in P205. To improve the separation efficiency, a dry quench with CaO is used prior to screening. The dry slaking causes additional loosening of the calcined product, allowing a more efficient separation of the silica. The enriched product is directed to the scraper mill and then to the air classification. Since some silica is additionally released in the grinding process, a secondary screening before or after air classification is envisaged. PL PL

Claims (1)

1. Zastrzezenie patentowe Sposób oddzielania krzemionki z rudy fosforytowej, znamienny tym, ze wzbogacona znana metoda kalcy¬ nacji rude fosforytowa przesiewa sie, po czym poddaje sie otrzymany produkt procesowi suchego gaszenia i przesiewa sie powtórnie. PL PLClaim 1. Method for the separation of silica from phosphate rock ore, characterized in that the enriched known calcination method is screened by the phosphorite ore and the resulting product is subjected to a dry slaking process and re-screened. PL PL
PL15095471A 1971-10-08 1971-10-08 PL70843B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL15095471A PL70843B2 (en) 1971-10-08 1971-10-08

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL15095471A PL70843B2 (en) 1971-10-08 1971-10-08

Publications (1)

Publication Number Publication Date
PL70843B2 true PL70843B2 (en) 1974-04-30

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ID=19955874

Family Applications (1)

Application Number Title Priority Date Filing Date
PL15095471A PL70843B2 (en) 1971-10-08 1971-10-08

Country Status (1)

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PL (1) PL70843B2 (en)

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