SU528260A1 - Extraction phosphoric acid purification method - Google Patents

Extraction phosphoric acid purification method

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Publication number
SU528260A1
SU528260A1 SU2110851A SU2110851A SU528260A1 SU 528260 A1 SU528260 A1 SU 528260A1 SU 2110851 A SU2110851 A SU 2110851A SU 2110851 A SU2110851 A SU 2110851A SU 528260 A1 SU528260 A1 SU 528260A1
Authority
SU
USSR - Soviet Union
Prior art keywords
phosphoric acid
acid
resin
purification method
pretreated
Prior art date
Application number
SU2110851A
Other languages
Russian (ru)
Inventor
Станислав Васильевич Хрящев
Борис Иосифович Шрамбан
Вера Валентиновна Кочеткова
Владимир Михайлович Лембриков
Николай Иванович Крайнев
Original Assignee
Предприятие П/Я В-8830
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 В-8830 filed Critical Предприятие П/Я В-8830
Priority to SU2110851A priority Critical patent/SU528260A1/en
Application granted granted Critical
Publication of SU528260A1 publication Critical patent/SU528260A1/en

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Fertilizers (AREA)

Description

Предложенный способ позвол ет упростить процесс за счет ликвидации многостадийной технологии подготовки смолы, что приводит к сокращению времени подготовки с 1-2 сут до 2 ч. Полученна  по этому способу кислота не разбавл етс , вследствие исключени  viJ процесса воды, и не содержит примесей посторонних анионов.The proposed method allows to simplify the process by eliminating the multistage resin preparation technology, which leads to a reduction in preparation time from 1-2 days to 2 hours. The acid obtained by this method is not diluted, due to the exclusion of water viJ process, and does not contain impurities of extraneous anions .

Пример. 60 г катионита КУ-2 в пересчете на сухой вес в Na+ форме выдерживают в течение 2 ч в 100 г (53% по РаОз) термической фосфорной кислоты, котора  не содержит ионов Са2+, после его te перенос т в колонку диаметром 15 мм. Через катионит пропускают фосфорную кислоту концентрацией 52,8% по Р205, полученную в полугидратном режиме и содержащую 0,8% окиси кальци . В результате очистки получают фосфорную кислоту с содержанием Р2О5 - 52,8%, не содержащую ионов Са2+.Example. 60 g of cation exchanger KU-2 in terms of dry weight in Na + form is kept for 2 hours in 100 g (53% PaOz) of thermal phosphoric acid, which does not contain Ca2 + ions, after its te is transferred to a 15 mm column. Phosphoric acid with a concentration of 52.8% in P205, obtained in the hemihydrate mode and containing 0.8% calcium oxide, is passed through the cation exchanger. As a result of purification, phosphoric acid with a P2O5 content of 52.8% is obtained, which does not contain Ca2 + ions.

Claims (3)

1. Способ очистки экстракционной фосфорной кислоты путем контактировани  ее с катионообменной смолой КУ-2, предварительно обработанной кислотой, отличающийс  тем, что, с целью повышени  качества продукта к упрощени  способа, смолу предварительно обрабатывают фосфорной кислотой, не содержащей катионов д:)ухвалентных элементов , при соотношении кислоты и смолы 1,0 : : 0,3-1,0, предпочтительно 1,0 : 0,6.1. A method for purifying extraction phosphoric acid by contacting it with a cation-exchange resin KU-2, a pretreated acid, characterized in that, in order to improve the quality of the product to simplify the process, the resin is pretreated with phosphoric acid that does not contain cations: when the ratio of acid and resin is 1.0:: 0.3-1.0, preferably 1.0: 0.6. 2.Способ по п. 1, отличающийс  тем, что смолу обрабатывают фосфорной кислотой той же концентрации, что и очищаема  кислота .2. A process according to claim 1, characterized in that the resin is treated with phosphoric acid of the same concentration as the acid to be purified. 3.Способ попп. 1и2, отличающийс  тем, что в качестве кислоты дл  обработки катионообменной смолы используют термическую фосфорную кислоту.3. Method pop. 1 and 2, characterized in that thermal phosphoric acid is used as the acid for the treatment of the cation exchange resin. Источники информации, прин тые во внимание при экспертизе:Sources of information taken into account in the examination: 1. Barney Angela. Solving the phosphoric problem leg solvents is pure good sense «Engineer, 1974, 238, № 6153, p. 33.1. Barney Angela. Solving the Pure Good Sense “Engineer, 1974, 238, No. 6153, p. 33. 2 Патент Японии Л 14692, кл. 15В53, 30.06.69.2 Japan patent No. 14692, cl. 15В53, 06.06.69. 3. Тезисы докладов IX Всесоюзной научно-техничской конференции по технологии неорганических веществ и минеральных удобрений , Пермь 1974, ч. 1, с. 35-36.3. Abstracts of the reports of the IX All-Union Scientific and Technical Conference on the Technology of Inorganic Substances and Mineral Fertilizers, Perm 1974, Part 1, p. 35-36.
SU2110851A 1975-03-03 1975-03-03 Extraction phosphoric acid purification method SU528260A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU2110851A SU528260A1 (en) 1975-03-03 1975-03-03 Extraction phosphoric acid purification method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU2110851A SU528260A1 (en) 1975-03-03 1975-03-03 Extraction phosphoric acid purification method

Publications (1)

Publication Number Publication Date
SU528260A1 true SU528260A1 (en) 1976-09-15

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SU2110851A SU528260A1 (en) 1975-03-03 1975-03-03 Extraction phosphoric acid purification method

Country Status (1)

Country Link
SU (1) SU528260A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4551320A (en) * 1984-10-12 1985-11-05 Fmc Corporation Treatment of concentrated phosphoric acid
WO2014018420A1 (en) * 2012-07-21 2014-01-30 K-Technologies, Inc. Processes for the removal and recovery of minor elements in wet-process phosphoric acid

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4551320A (en) * 1984-10-12 1985-11-05 Fmc Corporation Treatment of concentrated phosphoric acid
WO2014018420A1 (en) * 2012-07-21 2014-01-30 K-Technologies, Inc. Processes for the removal and recovery of minor elements in wet-process phosphoric acid
US9573810B2 (en) 2012-07-21 2017-02-21 K-Technologies, Inc. Processes for the removal and recovery of minor elements in wet-process phosphoric acid

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