SU709537A1 - Method of preparing calcium fluoride - Google Patents
Method of preparing calcium fluoride Download PDFInfo
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- SU709537A1 SU709537A1 SU772560376A SU2560376A SU709537A1 SU 709537 A1 SU709537 A1 SU 709537A1 SU 772560376 A SU772560376 A SU 772560376A SU 2560376 A SU2560376 A SU 2560376A SU 709537 A1 SU709537 A1 SU 709537A1
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- SU
- USSR - Soviet Union
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- drying
- wet
- dried
- briquettes
- precipitate
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- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Description
(54) СПОСОБ ПОЛУЧЕНИЯ ФТОРИСТОГО КАЛЬЦИЯ(54) METHOD OF OBTAINING FLUORINE CALCIUM
1one
Изобретение относитс к способу получени фтористого кальци .This invention relates to a method for producing calcium fluoride.
Известен способ получени фтористого кальци путем взаимодействи растворимых солей фтора с карбонатом кальци с добавлением олеиновой кислоты дл повышени скорости фильтрации 1.A known method for producing calcium fluoride by reacting soluble fluoride salts with calcium carbonate with the addition of oleic acid to increase the filtration rate 1.
Недостатком этого способа вл етс введение дополнительно олеиновой кислоты.The disadvantage of this method is the addition of oleic acid.
Известен также способ получени фтористого кальци путем взаимодействи раствора фтористого кали с гидроокисью кальци , отделением влажного осадка фильтрацией , сушкой последнего, брикетированием и прокалкой 2.There is also known a method for producing calcium fluoride by reacting potassium fluoride solution with calcium hydroxide, separating the wet sludge by filtration, drying the latter, briquetting and calcining 2.
Недостатком этого способа вл етс невысока скорость фильтрации (1,22- 1,52 т/м2 ч) и относительно невысока прочность брикетов (10-12 кг/см).The disadvantage of this method is the low filtration rate (1.22-1.52 t / m2 h) and the relatively low strength of the briquettes (10-12 kg / cm).
Целью изобретени вл етс увеличение скорости фильтрации фтористого кальци и повышение прочности брикетов.The aim of the invention is to increase the filtration rate of calcium fluoride and increase the strength of the briquettes.
Цель достигаетс тем, что по предлагаемому способу получени фтористого кальци гидроокись кальци берут в избытке 0,5-7% от стехиометрии, а брикетированиеThe goal is achieved by the fact that according to the proposed method of obtaining calcium fluoride calcium hydroxide is taken in excess of 0.5-7% of stoichiometry, and briquetting
ведут в присутствии влажного осадка в соотношении .lead in the presence of a wet precipitate in a ratio.
Избыток гидроокиси кальци служит св зующим веществом при брикетировании и одновременно увеличивает скорость фильтрации фтористого кальци . Увеличение избытка гидроокиси кальци более 7% экономически нецелесообразно,кроме того, гидроокись кальци , остава сь в продукте, снижает его качество. Уменьшение избытка гидроокиси кальци менее 0,5% не дает положительного эффекта.An excess of calcium hydroxide serves as a binder during briquetting and at the same time increases the filtration rate of calcium fluoride. An increase in the excess of calcium hydroxide by more than 7% is economically inexpedient; moreover, calcium hydroxide, remaining in the product, reduces its quality. A decrease in excess calcium hydroxide of less than 0.5% does not give a positive effect.
Пример 1. Дл получени 388 г брикетированного фтористого кальци к 4420 г раствора фтористого кали с содержанием 15%К1 , нагретого до 60°С, добавл ют 427 г гидроокиси кальци , что cooTBeTcfByeT 0,5% избытка от стехиометрической нормы, при непрерывном перемешивании в течение 1 ч. Полученную суспензию фильтруют и промывают 1750 мл гор чей воды. СкоростьExample 1. To obtain 388 g of briquetted calcium fluoride, 427 g of calcium hydroxide was added to 4420 g of a solution of potassium fluoride with a content of 15% K1 heated to 60 ° C, while cooTBeTcfByeT had a 0.5% excess of the stoichiometric norm, while continuously mixing for 1 hour. The resulting suspension is filtered and washed with 1750 ml of hot water. Speed
фильтрации пульпы по фильтрату составл ет 2,2 т ч.filtration of the pulp in the filtrate is 2.2 t.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU772560376A SU709537A1 (en) | 1977-12-26 | 1977-12-26 | Method of preparing calcium fluoride |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU772560376A SU709537A1 (en) | 1977-12-26 | 1977-12-26 | Method of preparing calcium fluoride |
Publications (1)
Publication Number | Publication Date |
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SU709537A1 true SU709537A1 (en) | 1980-01-15 |
Family
ID=20740375
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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SU772560376A SU709537A1 (en) | 1977-12-26 | 1977-12-26 | Method of preparing calcium fluoride |
Country Status (1)
Country | Link |
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SU (1) | SU709537A1 (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
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FR2940968A1 (en) * | 2009-01-13 | 2010-07-16 | Arkema France | PROCESS FOR THE PREPARATION OF OLEFINIC FLUORIN COMPOUNDS |
WO2011010023A1 (en) * | 2009-07-23 | 2011-01-27 | Arkema France | Method for preparing olefin fluorine compounds |
RU2487082C1 (en) * | 2012-04-26 | 2013-07-10 | Общество с ограниченной ответственностью "Объединенная Компания РУСАЛ Инженерно-технологический центр" | Method of producing calcium fluoride |
EP2627620A2 (en) | 2010-10-12 | 2013-08-21 | Honeywell International Inc. | Integrated process for the manufacture of fluorinated olefins |
US9255047B2 (en) | 2008-09-11 | 2016-02-09 | Arkema France | Process for the preparation of fluorinated compounds |
RU2574256C1 (en) * | 2014-06-26 | 2016-02-10 | Общество с ограниченной ответственностью "ЛУКОЙЛ-Нижегороднефтеоргсинтез" (ООО ЛУКОЙЛ-Нижегороднефтеоргсинтез) | Method for obtaining calcium fluoride |
CN110589867A (en) * | 2019-09-10 | 2019-12-20 | 湖北祥云(集团)化工股份有限公司 | Method for preparing calcium fluoride from phosphorite associated fluorine resources |
CN110606501A (en) * | 2019-09-27 | 2019-12-24 | 山东鲁北企业集团总公司 | Preparation method of calcium fluoride |
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1977
- 1977-12-26 SU SU772560376A patent/SU709537A1/en active
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9758451B2 (en) | 2008-09-11 | 2017-09-12 | Arkema France | Process for the preparation of fluorinated compounds |
US9255047B2 (en) | 2008-09-11 | 2016-02-09 | Arkema France | Process for the preparation of fluorinated compounds |
US9018429B2 (en) | 2009-01-13 | 2015-04-28 | Arkenna France | Process for the preparation of fluoroolefin compounds |
WO2010081988A1 (en) * | 2009-01-13 | 2010-07-22 | Arkema France | Method for the preparation of fluoroolefin compounds |
CN106220470B (en) * | 2009-01-13 | 2020-03-03 | 阿克马法国公司 | Process for producing fluoroolefin compound |
EP3412646A1 (en) * | 2009-01-13 | 2018-12-12 | Arkema France | Method for preparing olefinic fluorinated compounds |
FR2940968A1 (en) * | 2009-01-13 | 2010-07-16 | Arkema France | PROCESS FOR THE PREPARATION OF OLEFINIC FLUORIN COMPOUNDS |
CN106220470A (en) * | 2009-01-13 | 2016-12-14 | 阿克马法国公司 | The method preparing olefin fluorine compounds |
CN101962312A (en) * | 2009-07-23 | 2011-02-02 | 阿克马法国公司 | Method for preparing olefin fluorine compounds |
US8809601B2 (en) | 2009-07-23 | 2014-08-19 | Arkema France | Method for preparing olefin fluorine compounds |
CN101962312B (en) * | 2009-07-23 | 2017-05-17 | 阿克马法国公司 | Method for preparing olefin fluorine compounds |
FR2948360A1 (en) * | 2009-07-23 | 2011-01-28 | Arkema France | PROCESS FOR THE PREPARATION OF OLEFINIC FLUORIN COMPOUNDS |
WO2011010023A1 (en) * | 2009-07-23 | 2011-01-27 | Arkema France | Method for preparing olefin fluorine compounds |
EP2627620A2 (en) | 2010-10-12 | 2013-08-21 | Honeywell International Inc. | Integrated process for the manufacture of fluorinated olefins |
RU2487082C1 (en) * | 2012-04-26 | 2013-07-10 | Общество с ограниченной ответственностью "Объединенная Компания РУСАЛ Инженерно-технологический центр" | Method of producing calcium fluoride |
RU2574256C1 (en) * | 2014-06-26 | 2016-02-10 | Общество с ограниченной ответственностью "ЛУКОЙЛ-Нижегороднефтеоргсинтез" (ООО ЛУКОЙЛ-Нижегороднефтеоргсинтез) | Method for obtaining calcium fluoride |
CN110589867A (en) * | 2019-09-10 | 2019-12-20 | 湖北祥云(集团)化工股份有限公司 | Method for preparing calcium fluoride from phosphorite associated fluorine resources |
CN110606501A (en) * | 2019-09-27 | 2019-12-24 | 山东鲁北企业集团总公司 | Preparation method of calcium fluoride |
CN110606501B (en) * | 2019-09-27 | 2022-08-05 | 山东鲁北企业集团总公司 | Preparation method of calcium fluoride |
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