Show metadata Hide metadata

(19)

(11)

2 616 715

(13)

(51)

IPC

C01D5/06(2006-01-01)

C01B7/19(2006-01-01)

C01D3/02(2006-01-01)

(21) (22)

Application

2016115411, 2016-04-20

(24)

Start date

2016-04-20

(22)

Actual filing date

2016-04-20

(45)

Published

2017-04-18

(72)

Inventor

Bispen Tatyana AlekseevnaKotelnikov Stanislav EvgenevichMoldavskij Dmitrij Dmitrievich

(73)

Holder

Obshchestvo S Ogranichennoj Otvetstvennostyu Zavod Ftorsolej"

METHOD OF PROCESSING WASTE POTASSIUM BIFLUORIDE Russian patent published in 2017 - IPC C01D5/06 C01B7/19 C01D3/02

Abstract RU 2616715 C1

FIELD: chemistry.

SUBSTANCE: method of processing waste potassium bifluoride comprises its grinding, treatment with sulfuric acid with concentration of 95-100% in a molar ratio of sulfuric acid: potassium bifluoride as 1:1.02. The resulting mixture is heated to 130-150°C and held for 3-4 hours. The resulting hydrogen fluoride is stripped. Hydrogen fluoride absorption by water to obtain hydrofluoric acid is possible. Neutralisation of mass remaining after stripping of the hydrogen fluoride is carried out using aqueous solution of hydroxide or potassium carbonate to pH 7-7.5.

EFFECT: resulting potassium sulfate is dried The invention enables to process waste potassium bifluoride having high acidity and toxicity into commodity products - hydrogen fluoride and/or hydrofluoric acid and clear potassium sulfate.

5 tbl, 4 ex

Similar patents RU2616715C1

Title	Year	Author	Number
NANOTECHNOLOGICAL METHOD OF DETERMINING PRESENCE AND QUANTITATIVE CONTENT OF RARE AND DISPERSED CHEMICAL ELEMENTS IN ROCKS, ORE AND PRODUCTS FROM THEIR PROCESSING	2007	Olejnikova Galina Andreevna Panova Elena Gennadievna Shishlov Vladimir Anatol'Evich Rusanova Larisa Ivanovna	RU2370764C2
METHOD OF SILVER RECEIVING	2008	Sidorenko Jurij Aleksandrovich	RU2378398C2
METHOD OF ANALYSING MOLYBDENUM AND COMPOUNDS THEREOF THROUGH MULTI-ELEMENT ANALYSIS WITH EXTRACTION OF MOLYBDENUM	2009	Karandashev Vasilij Konstantinovich Turanov Aleksandr Nikolaevich	RU2395077C1
NUTRITIVE MEDIUM FOR CULTIVATION OF NITROGEN-FIXING AND PHOSPHATE-MOBILISING MICROORGANISM CONSORTIUM	2013	Degtjareva Irina Aleksandrovna Japparov Akhtam Khusainovich Khidijatullina Ajgul' Jadkar'Evna Ezhkova Asija Mazetdinovna Japparov Damir Akhtamovich Japparov Il'Dar Akhtamovich Khisamutdinov Nurulla Shajkhullovich Ezhkov Vladimir Olegovich	RU2557395C2
FILTERING CHUCK FOR PREPARATION OF DRINKING WATER FROM SOURCE WITH LOW CONTENT OF CALCIUM, MAGNESIUM AND FLUORINE IONS AND INCREASED CONTENT OF IRON IONS	2013	Zakharov Sergej Viktorovich Masljukov Aleksandr Petrovich Mel'Nikov Igor' Olegovich Nikolotov Vladimir Viktorovich Novikov Anton Valer'Evich Podobedov Roman Evgen'Evich Rastegaev Aleksej Grigor'Evich Saprykin Viktor Vasil'Evich Jakubauskas Anna Nikolaevna	RU2533715C1
NUTRITIVE MEDIUM FOR GROWTH OF CONSORTIUM OF NITROGEN-FIXING AND PHOSPHATE-MOBILISING MICROORGANISMS	2012	Degtjareva Irina Aleksandrovna Japparov Akhtam Khusainovich Japparov Il'Dar Akhtamovich Khidijatullina Ajgul' Jadkar'Evna Ezhkova Asija Mazetdinovna Ezhkov Vladimir Olegovich Japparov Damir Akhtamovich Khisamutdinov Nurulla Shajkhullovich Zaripova Sanija Kashafovna	RU2536246C2
CULTURE MEDIUM FOR GROWING CONSORTIUM OF NITROGEN-FIXING AND PHOSPHATE-MOBILISING MICROORGANISMS	2012	Japparov Akhtam Khusainovich Degtjareva Irina Aleksandrovna Khidijatullina Ajgul' Jadkar'Evna Japparov Il'Dar Akhtamovich Ezhkova Asija Mazetdinovna Ezhkov Vladimir Olegovich Japparov Damir Akhtamovich Khisamutdinov Nurulla Shajkhullovich	RU2528740C2
CULTURE MEDIUM FOR GROWING CONSORTIUM OF NITROGEN-FIXING AND PHOSPHATE-MOBILISING MICROORGANISMS	2012	Degtjareva Irina Aleksandrovna Japparov Akhtam Khusainovich Khisamutdinov Nurulla Shajkhullovich Khidijatullina Ajgul' Jadkar'Evna Ezhkova Asija Mazetdinovna Ezhkov Vladimir Olegovich Japparov Il'Dar Akhtamovich Japparov Damir Akhtamovich Zaripova Sanija Kashafovna	RU2528874C2
PROCEDURE FOR PRODUCTION OF REFINED SILVER	2010	Zhuravleva Svetlana Sergeevna Gerasimova Ljudmila Konstantinovna Vostrikov Vladimir Aleksandrovich Il'Jashevich Viktor Dmitrievich	RU2421529C1
NUTRITIVE MEDIUM FOR GROWTH OF CONSORTIUM OF NITROGEN-FIXING AND PHOSPHATE-MOBILISING MICROORGANISMS	2013	Japparov Akhtam Khusainovich Degtjareva Irina Aleksandrovna Gabdrakhmanov Il'Dus Kharisovich Khidijatullina Ajgul' Jadkar'Evna Japparov Il'Dar Akhtamovich Ezhkova Asija Mazetdinovna Japparov Damir Akhtamovich Il'Jasov Mars Magsumovich	RU2557391C2

RU 2 616 715 C1

Authors

Bispen Tatyana Alekseevna

Kotelnikov Stanislav Evgenevich

Moldavskij Dmitrij Dmitrievich

Dates

2017-04-18—Published

2016-04-20—Filed