RU2012121942A - METHOD FOR PROCESSING PHOSPHOGYPSUM FOR AMMONIUM SULPHATE AND PHOSPHOMEL - Google Patents

METHOD FOR PROCESSING PHOSPHOGYPSUM FOR AMMONIUM SULPHATE AND PHOSPHOMEL Download PDF

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RU2012121942A
RU2012121942A RU2012121942/05A RU2012121942A RU2012121942A RU 2012121942 A RU2012121942 A RU 2012121942A RU 2012121942/05 A RU2012121942/05 A RU 2012121942/05A RU 2012121942 A RU2012121942 A RU 2012121942A RU 2012121942 A RU2012121942 A RU 2012121942A
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Russia
Prior art keywords
solution
phosphomel
conversion
phosphogypsum
ammonium sulfate
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RU2012121942/05A
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Russian (ru)
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RU2510366C2 (en
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Тимур Исмайлходжаевич Муллаходжаев
Аркадий Львович Олифсон
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Общество с ограниченной ответственностью Инженерно-производственная компания "ИНТЕРФОС"
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Priority to RU2012121942/05A priority Critical patent/RU2510366C2/en
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Abstract

1. Способ переработки фосфогипса на сульфат аммония и фосфомел, включающий конверсию фосфогипса раствором карбоната аммония с последующим отделением осадка фосфомела от раствора сульфата аммония фильтрацией, отличающийся тем, что конверсию ведут раствором карбоната аммония с концентрацией 3-7%, конверсионную пульпу делят на два потока, один из которых направляют на стадию разбавления карбоната аммония до указанной концентрации в течение 3-5 мин., в второй - на фильтрацию для отделения осадка фосфомела от раствора сульфата аммония.2. Способ по п.1, отличающийся тем, что фосфогипс перед конверсией распульповывают оборотным раствором сульфата аммония до отношения твердой и жидкой фаз 1: 2-3.1. A method of processing phosphogypsum into ammonium sulfate and phosphomel, including the conversion of phosphogypsum with a solution of ammonium carbonate, followed by separation of the precipitate of phosphomel from a solution of ammonium sulfate by filtration, characterized in that the conversion is carried out with a solution of ammonium carbonate with a concentration of 3-7%, the conversion pulp is divided into two streams , one of which is sent to the stage of diluting ammonium carbonate to the specified concentration for 3-5 minutes, and the second to filtration to separate the phosphomel precipitate from the solution of ammonium sulfate. 2. The method according to claim 1, characterized in that the phosphogypsum before conversion is pulped with a working solution of ammonium sulfate to a ratio of solid and liquid phases of 1: 2-3.

Claims (2)

1. Способ переработки фосфогипса на сульфат аммония и фосфомел, включающий конверсию фосфогипса раствором карбоната аммония с последующим отделением осадка фосфомела от раствора сульфата аммония фильтрацией, отличающийся тем, что конверсию ведут раствором карбоната аммония с концентрацией 3-7%, конверсионную пульпу делят на два потока, один из которых направляют на стадию разбавления карбоната аммония до указанной концентрации в течение 3-5 мин., в второй - на фильтрацию для отделения осадка фосфомела от раствора сульфата аммония.1. A method of processing phosphogypsum into ammonium sulfate and phosphomel, including the conversion of phosphogypsum with a solution of ammonium carbonate, followed by separation of the precipitate of phosphomel from a solution of ammonium sulfate by filtration, characterized in that the conversion is carried out with a solution of ammonium carbonate with a concentration of 3-7%, the conversion pulp is divided into two streams , one of which is sent to the stage of dilution of ammonium carbonate to the specified concentration for 3-5 minutes, and the second to filtration to separate the precipitate of phosphomel from a solution of ammonium sulfate. 2. Способ по п.1, отличающийся тем, что фосфогипс перед конверсией распульповывают оборотным раствором сульфата аммония до отношения твердой и жидкой фаз 1: 2-3. 2. The method according to claim 1, characterized in that the phosphogypsum before conversion is pulped with a working solution of ammonium sulfate to a ratio of solid and liquid phases of 1: 2-3.
RU2012121942/05A 2012-05-29 2012-05-29 Method of processing phosphogypsum to ammonium sulphate and phosphochalk RU2510366C2 (en)

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RU2012121942/05A RU2510366C2 (en) 2012-05-29 2012-05-29 Method of processing phosphogypsum to ammonium sulphate and phosphochalk

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RU2012121942/05A RU2510366C2 (en) 2012-05-29 2012-05-29 Method of processing phosphogypsum to ammonium sulphate and phosphochalk

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RU2012121942A true RU2012121942A (en) 2013-12-10
RU2510366C2 RU2510366C2 (en) 2014-03-27

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL421318A1 (en) * 2017-04-14 2018-10-22 Ferin Spółka Z Ograniczoną Odpowiedzialnością Method for phospho-gypsum management
RU2677047C1 (en) * 2018-02-19 2019-01-15 Общество с ограниченной ответственностью "Гибридные удобрения" Method for processing phosphogypsum for complex fertilizer containing nitrogen, calcium and sulfur
RU2680269C1 (en) * 2018-02-26 2019-02-19 Общество с ограниченной ответственностью "Гибридные удобрения" Method of processing phosphogipsa for nitrogen-phosphorous fertilizer
RU2680589C1 (en) * 2018-05-24 2019-02-22 Общество с ограниченной ответственностью "Гибридные удобрения" Method of processing phosphogypsum for phosphorous fertilizer

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU715468A1 (en) * 1977-04-21 1980-02-15 Предприятие П/Я В-8830 Method of preparing ammonium sulfate
SU793937A1 (en) * 1979-02-19 1981-01-07 Предприятие П/Я Р-6295 Method of preparing ammonium sulfate
UA41069U (en) * 2007-11-13 2009-05-12 Петр Георгиевич Дульнев Bem-10 method for phosphogypsum processing
CN101269823B (en) * 2008-05-07 2011-04-06 瓮福（集团）有限责任公司 Method for producing ammonium sulphate with phosphogypsum as raw material
EA015407B1 (en) * 2009-06-04 2011-08-30 Открытое Акционерное Общество "Научно-Исследовательский Институт По Удобрениям И Инсектофунгицидам Им. Профессора Я.В. Самойлова" Method for processing phosphogypsum to ammonium sulfate and calcium carbonate
CN101585547B (en) * 2009-06-23 2011-02-16 西南科技大学 Method for preparing ammonium sulfate as fertilizer by phosphogypsum through ball milling

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