SU470492A1 - The method of producing phosphoric acid - Google Patents

The method of producing phosphoric acid

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Publication number
SU470492A1
SU470492A1 SU1889569A SU1889569A SU470492A1 SU 470492 A1 SU470492 A1 SU 470492A1 SU 1889569 A SU1889569 A SU 1889569A SU 1889569 A SU1889569 A SU 1889569A SU 470492 A1 SU470492 A1 SU 470492A1
Authority
SU
USSR - Soviet Union
Prior art keywords
phosphoric acid
extract
producing phosphoric
salts
producing
Prior art date
Application number
SU1889569A
Other languages
Russian (ru)
Inventor
Борис Николаевич Ласкорин
Захар Шмерович Голынко
Георгий Константинович Целищев
Original Assignee
Предприятие П/Я А-1997
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.)
Filing date
Publication date
Application filed by Предприятие П/Я А-1997 filed Critical Предприятие П/Я А-1997
Priority to SU1889569A priority Critical patent/SU470492A1/en
Application granted granted Critical
Publication of SU470492A1 publication Critical patent/SU470492A1/en

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Description

Пример 2. Фосфорную кислоту экстрагируют 75% ТБФ в керосине. Экстракт содержит (в г/л): НзРО4 57,1; НС1 10,2; СаСЬ 14,8. Экстракт промывают оборотным раствором моноаммонийфосфата, содержащим (в г/л): РгОб 137,0; CI 31,5; NHg 47,8, с рН 4,3 в две стадии при объемном соотношении фаз Vo: . Промытый экстракт содержит (в г/л): НзРО4 51,9; НС1 4,76; СаСЬ 0,8.Example 2. Phosphoric acid is extracted with 75% TBP in kerosene. The extract contains (in g / l): NzRO4 57.1; HC1 10.2; COS 14.8. The extract is washed with a working solution of monoammonium phosphate containing (in g / l): PrOb 137.0; CI 31.5; NHg 47.8, with a pH of 4.3 in two stages with a volume ratio of the phases Vo :. The washed extract contains (in g / l): NzRO4 51.9; HC1 4.76; CAC 0,8.

Аммонизацией промытого экстракта получают кристаллический моноаммонийфосфат, содержащий (в вес. %): PaOs 59,6; СаО 0,35; N2 11,9. Содержание НС1 и СаС уменьшаетс  на 74 и 94,5% соответственно.Ammonization of the washed extract gives crystalline monoammonium phosphate containing (in wt.%): PaOs 59.6; CaO 0.35; N2 11.9. The content of HC1 and CaC decreases by 74 and 94.5%, respectively.

Следовательно, обработка экстракта сол ми фосфорной кислоты приводит к увеличениюTherefore, the treatment of the extract with phosphoric acid salts leads to an increase in

содержани  фосфорной кислоты в экстракте и очистке от соэкстрагируемых минеральных кислот и солей.the content of phosphoric acid in the extract and the purification from coextracted mineral acids and salts.

Предмет изобретени Subject invention

Claims (2)

1.Способ получени  фосфорной кислоты путем разложени  фосфоритов минеральными кислотами, экстракции фосфорной кислоты органическими растворител ми, очистки экстракта от примесей, отличающийс  тем, что, с целью повышени  качества продукта, очистку экстракта провод т сол ми фосфорной кислоты.1. A method for producing phosphoric acid by decomposing phosphorites with mineral acids, extracting phosphoric acid with organic solvents, purifying the extract from impurities, characterized in that, in order to improve the quality of the product, the extract is purified with phosphoric acid salts. 2.Способ по п. 1, отличающийс  тем, что соли фосфорной кислоты берут в твердом виде, IB виде суспензии или в виде раствора.2. A method according to claim 1, characterized in that the salts of phosphoric acid are taken in solid form, IB as a suspension or as a solution.
SU1889569A 1973-03-05 1973-03-05 The method of producing phosphoric acid SU470492A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1889569A SU470492A1 (en) 1973-03-05 1973-03-05 The method of producing phosphoric acid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1889569A SU470492A1 (en) 1973-03-05 1973-03-05 The method of producing phosphoric acid

Publications (1)

Publication Number Publication Date
SU470492A1 true SU470492A1 (en) 1975-05-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
SU1889569A SU470492A1 (en) 1973-03-05 1973-03-05 The method of producing phosphoric acid

Country Status (1)

Country Link
SU (1) SU470492A1 (en)

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