SU559915A1 - Method for enrichment of carbonate-containing phosphates - Google Patents

Method for enrichment of carbonate-containing phosphates

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Publication number
SU559915A1
SU559915A1 SU2111131A SU2111131A SU559915A1 SU 559915 A1 SU559915 A1 SU 559915A1 SU 2111131 A SU2111131 A SU 2111131A SU 2111131 A SU2111131 A SU 2111131A SU 559915 A1 SU559915 A1 SU 559915A1
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SU
USSR - Soviet Union
Prior art keywords
solution
phosphate
carbonate
enrichment
alkali metal
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SU2111131A
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Russian (ru)
Inventor
Марина Васильевна Чайкина
Original Assignee
Институт Физико-Химических Основ Переработки Минерального Сырья
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Priority to SU2111131A priority Critical patent/SU559915A1/en
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Publication of SU559915A1 publication Critical patent/SU559915A1/en

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Description

F 3,2; н. о. 2,7, и 33 г преципитата состава, %: PaOs 47,7; СаО 46,5; СОа 3,0; 0;1; РегОз 0,24; F 0,1; н. о. 0,6; HgO 3,2.F 3.2; n about. 2.7, and 33 g of precipitate composition,%: PaOs 47.7; CaO 46.5; COA 3.0; 0; 1; RegOz 0,24; F 0.1; n about. 0.6; HgO 3.2.

Пример 2. К 10 г измельченного фосфорита того же состава приливают 75 г 20% КН2РО4, перемешивают 2 час, обогащенный фосфорит отфильтровывают, промывают и раздел ют в т желой жидкости с плотностью 2,42 на фосфоконцентрат и преципитат, после высушивани  получают 4,3 г фосфоконцентрата состава, %: PsOs 34,0; СаО 50,5; СОг 4,5; «. о. 3,2; РеаОз 1,5; 0,7; F 3,1, и 6,5 г преципитата состава, %: Р205 46,9; СаО 48,8; СОг 2,4; F 0,1; АЬОз 0,9; н. о. 0,5, HgO 1,8.Example 2. To 10 g of crushed phosphorite of the same composition, 75 g of 20% KH2PO4 are poured, stirred for 2 hours, the enriched phosphorite is filtered, washed and separated in a heavy liquid with a density of 2.42 into a phosphoconcentrate and a precipitate, after drying, 4.3 g phosphoconcentrate composition,%: PsOs 34.0; CaO 50.5; CO2 = 4.5; ". about. 3.2; ReaOz 1,5; 0.7; F 3.1, and 6.5 g of the precipitate composition,%: P205 46,9; CaO 48.8; CO2; F 0.1; HOS = 0.9; n about. 0.5, HgO 1.8.

Пример 3. 10 г измельченного фосфорита , пригодного дл  производства фосфоритной муки, состава, %: РгОб 17,5; СаО 41,4; SiOa 23,6; АЬОз 2,1; Fe2O3 3,6; СОз 9,9; F 1,6 обрабатывают 75 г 30% (NH4) Н2РО4 в тече«ие 2 час, смесь отфильтровывают и сушат при 110°С.Example 3. 10 g of milled phosphorite, suitable for the production of phosphate rock, composition,%: PgOb 17.5; CaO 41.4; SiOa 23.6; HOS 2,1; Fe2O3 3.6; SOZ 9.9; F 1.6 is treated with 75 g of 30% (NH4) H2PO4 for 2 hours, the mixture is filtered and dried at 110 ° C.

Получают 11,8 г обогащенного фосфорита состава, %: PgOs 26,1; СаО 36,2; Si02 23,9; АЬОз 1,9; Ре20з 3,8; СОз 4,4; F 1,6; 2,1.11.8 g of an enriched phosphorite composition are obtained,%: PgOs 26.1; CaO 36.2; Si02 23.9; ABOZ 1.9; Re203 3.8; SOZ 4.4; F 1.6; 2.1.

559915559915

Claims (3)

1.Способ обогащени  карбонатсодержащих фосфоритов пзтем обработки измельченной руды фосфорнокислым раствором, отличающийс  тем, что, с целью упрощени  способа и повышени  содержани  в продукте , в качестве фосфорнакислого раствора используют раствор однозамещеннЫХ фосфатов щелочных металлов или аммони - с последующим отделением осадка, обработкой фильтрата фосфорной кислотой и возвращением полученного раствора на стадию обогащени  фосфоритов.1.Sposob enrichment carbonate phosphate pztem processing crushed ore phosphate solution, characterized in that, in order to simplify the process and increase the content of the product, as fosfornakislogo solution, a solution of alkali metal dihydrogen phosphate or ammonium - followed by separation of the precipitate by treatment with phosphoric acid filtrate and returning the resulting solution to the phosphorite enrichment stage. 2.Способ по п. 1, отличающийс  тем, что раствор однозамещенного фосфата щелоч«ого металла или аммони  берут концентра .цней 10-50% в количестве, эквивалентном содержанию карбоната в фосфорите.2. A method according to claim 1, characterized in that the solution of monosubstituted alkali metal phosphate or ammonium takes a concentration of 10-50% in an amount equivalent to the carbonate content of phosphate. 3.Способ по п. 1, отличающийс  тем, что обработку фильтрата фосфорной кислотой ведут до ,5-5,0.3. The method according to claim 1, characterized in that the treatment of the filtrate with phosphoric acid is carried out to 5-5.0. Источники информации, прин тые вО внимание при экспертизеSources of information taken into consideration during the examination 1. Патент Франции N° 2070192, кл. С 01В 25/00, 22.01.71.1. Patent of France N ° 2070192, cl. From 01B to 25/00, 01.22.71. 2. Патент США № 3518072, кл. 71-41, 30.06.70 (прототин).2. US Patent No. 3518072, cl. 71-41, 30.06.70 (Prototin).
SU2111131A 1975-02-26 1975-02-26 Method for enrichment of carbonate-containing phosphates SU559915A1 (en)

Priority Applications (1)

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SU2111131A SU559915A1 (en) 1975-02-26 1975-02-26 Method for enrichment of carbonate-containing phosphates

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Application Number Priority Date Filing Date Title
SU2111131A SU559915A1 (en) 1975-02-26 1975-02-26 Method for enrichment of carbonate-containing phosphates

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SU559915A1 true SU559915A1 (en) 1977-05-30

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