EA200901637A1 - METHOD FOR PROCESSING PHOSPHOGYPHS AND DEVICE FOR ITS IMPLEMENTATION - Google Patents
METHOD FOR PROCESSING PHOSPHOGYPHS AND DEVICE FOR ITS IMPLEMENTATIONInfo
- Publication number
- EA200901637A1 EA200901637A1 EA200901637A EA200901637A EA200901637A1 EA 200901637 A1 EA200901637 A1 EA 200901637A1 EA 200901637 A EA200901637 A EA 200901637A EA 200901637 A EA200901637 A EA 200901637A EA 200901637 A1 EA200901637 A1 EA 200901637A1
- Authority
- EA
- Eurasian Patent Office
- Prior art keywords
- tank
- acids
- phosphogypsum
- water
- dumps
- Prior art date
Links
Landscapes
- Fertilizers (AREA)
- Processing Of Solid Wastes (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
Изобретение относится к области переработки отходов химической промышленности, а конкретно, отвалов фосфогипса - остаточного продукта при производстве фосфорных удобрений. Большие объёмы отходов, наличие в них редкоземельных элементов и стронция (в дальнейшем РЗЭ), фтористо-водородной, серной, фосфорной кислот, а также их солей, представляют собой весьма значимый объект в двух аспектах: 1) как довольно крупное антропогенное месторождение гипса и РЗЭ; 2) как серьёзный источник загрязнения окружающей среды. Заявляемый способ позволит комплексно освоить всю перерабатываемую массу без создания вторичных отвалов. Это делает возможным не только решать экологические проблемы без существенных затрат, но и получать значительную прибыль за счёт реализации вторичных продуктов. Техническая задача предлагаемого способа переработки фосфогипса заключается в создании безотходной технологии, включающей получение товарного гипса, концентрата редкоземельных элементов, освобождение продуктов передела от технологических кислот с последующей их нейтрализацией, использование технической воды по замкнутому варианту. Устройство для переработки фосфогипса включает емкость для сбора тяжелой фракции, устройство подачи исходного материала, ёмкость для водно-гравитационной сепарации, где роль мешалки в отличие от прототипа выполняет тангенциально встроенный гидромонитор со щелевой насадкой. Ёмкость для водно-гравитационной сепарации выполнена с патрубком для слива легкой фракции в емкость-отстойник, которая соединена последовательно при помощи трубопровода с емкостями для очистки от кислот.The invention relates to the field of recycling of chemical industry, and specifically, phosphogypsum dumps - residual product in the production of phosphate fertilizers. Large volumes of waste, the presence of rare earth elements and strontium (hereinafter REE), hydrofluoric, sulfuric, phosphoric acids, as well as their salts, are a very significant object in two aspects: 1) as a rather large anthropogenic deposit of gypsum and REE ; 2) as a serious source of environmental pollution. The inventive method will allow you to comprehensively master the entire processed mass without creating secondary dumps. This makes it possible not only to solve environmental problems without significant costs, but also to obtain significant profits through the sale of secondary products. The technical objective of the proposed method of processing phosphogypsum is to create waste-free technology, including the production of commodity gypsum, concentrate of rare earth elements, the release of redistribution products from process acids with their subsequent neutralization, the use of industrial water in a closed version. A device for processing phosphogypsum includes a tank for collecting heavy fraction, a source feed device, a tank for water-gravity separation, where the stirrer, in contrast to the prototype, is tangentially built-in hydromonitor with a slit nozzle. The tank for water-gravity separation is made with a pipe for discharging the light fraction into the settling tank, which is connected in series by means of a pipeline with tanks for cleaning from acids.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EA200901637A EA200901637A1 (en) | 2009-12-28 | 2009-12-28 | METHOD FOR PROCESSING PHOSPHOGYPHS AND DEVICE FOR ITS IMPLEMENTATION |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EA200901637A EA200901637A1 (en) | 2009-12-28 | 2009-12-28 | METHOD FOR PROCESSING PHOSPHOGYPHS AND DEVICE FOR ITS IMPLEMENTATION |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EA014877B1 EA014877B1 (en) | 2011-02-28 |
| EA200901637A1 true EA200901637A1 (en) | 2011-02-28 |
Family
ID=43778117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EA200901637A EA200901637A1 (en) | 2009-12-28 | 2009-12-28 | METHOD FOR PROCESSING PHOSPHOGYPHS AND DEVICE FOR ITS IMPLEMENTATION |
Country Status (1)
| Country | Link |
|---|---|
| EA (1) | EA200901637A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106591589A (en) * | 2017-01-12 | 2017-04-26 | 李良 | High-precision purifying device for rare earth raw materials |
| CN111545342A (en) * | 2020-05-15 | 2020-08-18 | 武汉格物致知矿业有限公司 | Method for purifying phosphogypsum based on flotation column and gravity separation column with filler |
| CN112723770A (en) * | 2021-01-07 | 2021-04-30 | 湖北新洋丰新型建材科技有限公司 | Purification method of byproduct phosphogypsum of wet-process phosphoric acid |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BG18040A1 (en) * | 1972-05-06 | 1974-09-02 | ||
| RU2104938C1 (en) * | 1996-09-26 | 1998-02-20 | Товарищество с ограниченной ответственностью "Мицар" | Method for extraction of rare-earth elements of phosphogypsum |
| RU2337879C1 (en) * | 2007-06-06 | 2008-11-10 | Институт химии и технологии редких элементов и минерального сырья им. И.В. Тананаева Кольского научного центра Российской академии наук (ИХТРЭМС КНЦ РАН) | Method for processing phosphogypsum, containing phosphorous compound and lanthanides |
| CN101440430A (en) * | 2007-11-19 | 2009-05-27 | 贵州光大能源发展有限公司 | Method for recycling rare earth from phosphogypsum leaching solution by fluoride precipitation method |
-
2009
- 2009-12-28 EA EA200901637A patent/EA200901637A1/en not_active IP Right Cessation
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106591589A (en) * | 2017-01-12 | 2017-04-26 | 李良 | High-precision purifying device for rare earth raw materials |
| CN106591589B (en) * | 2017-01-12 | 2018-07-27 | 绍兴梁潮化纤有限公司 | A kind of rare earths material high-precision purifying plant |
| CN111545342A (en) * | 2020-05-15 | 2020-08-18 | 武汉格物致知矿业有限公司 | Method for purifying phosphogypsum based on flotation column and gravity separation column with filler |
| CN112723770A (en) * | 2021-01-07 | 2021-04-30 | 湖北新洋丰新型建材科技有限公司 | Purification method of byproduct phosphogypsum of wet-process phosphoric acid |
Also Published As
| Publication number | Publication date |
|---|---|
| EA014877B1 (en) | 2011-02-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM4A | Lapse of a eurasian patent due to non-payment of renewal fees within the time limit in the following designated state(s) |
Designated state(s): AM AZ BY KZ KG MD TJ TM RU |