Show metadata Hide metadata

(19)

(11)

2 419 517

(13)

(51)

IPC

B22F9/16(2006-01-01)

C22B11/00(2006-01-01)

C22B3/20(2006-01-01)

C22B5/12(2006-01-01)

(21) (22)

Application

2009127979/02, 2009-07-20

(24)

Start date

2009-07-20

(22)

Actual filing date

2009-07-20

(45)

Published

2011-05-27

(72)

Inventor

Rysev Vadim SergeevichDolgov Sergej Gennad'EvichAref'Ev Dmitrij Gennad'Evich

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Ob"Edinenie Ehlektrokhimicheskij Zavod" Ehkhz")

METHOD OF PRODUCING OF METAL IRIDIUM POWDER FROM (TRIFLUOROPHOSPHINE) IRIDIUM HYDRIDE TETRAKIS Russian patent published in 2011 - IPC B22F9/16 C22B11/00 C22B3/20 C22B5/12

Abstract RU 2419517 C2

FIELD: process engineering.

SUBSTANCE: invention relates to method of producing iridium from (trifluorophosphine) iridium hydride tetrakis and may be used for production of high-purity metal iridium powder. Proposed method comprises ammonolysis of volatile complex compound of (trifluorophosphine) iridium hydride tetrakis Hlr(PF₃)₄ with conversion into nonvolatile iridium metallamine by water solution of ammonium. Then, iridium metallamine is dissolved in concentrated hydrogen nitrate and solution is evaporated. Evaporation over, residue is decomposed to sponge-structure metal iridium. Now, the latter is triturated, reduced in hydrogen flow and purified to high-purity iridium.

EFFECT: high-purity iridium powder.

1 ex

Similar patents RU2419517C2

Title	Year	Author	Number
METHOD FOR ELECTROCHEMICAL PRODUCTION OF IRIDIUM POWDER WITH SPECIFIC SURFACE AREA MORE THAN 5 m/g	2015	Zajkov Yurij Pavlovich Isakov Andrej Vladimirovich Apisarov Aleksej Petrovich Nikitina Anna Olegovna Galaktionov Vladimir Nikolaevich Butrim Viktor Nikolaevich Timofeev Anatolij Nikolaevich	RU2600305C1
METHOD FOR OBTAINING COATINGS FROM PLATINUM METALS	2011	Kostylev Aleksandr Ivanovich Pokrovskij Jurij Germanovich Troshkina Irina Dmitrievna Bryskin Boris Davidovich Tkachuk Polina Nikolaevna	RU2489516C1
METHOD OF PRODUCING HIGHLY ENRICHED IRIDIUM ISOTOPES	2007	Eliseev Evgenij Viktorovich Pul'Nikov Ivan Illarionovich Savitskij Andrej Viktorovich Sharin Gennadij Aleksandrovich Kaliteevskij Aleksej Kirillovich Godisov Oleg Niklenovich Mjazin Leonid Petrovich Fedorov Vladimir Viktorovich Kostylev Aleksandr Ivanovich Pokrovskij Jurij Germanovich	RU2351388C2
METHOD OF SEPARATION OF RHODIUM FROM IRIDIUM AND RUTHENIUM	1999	Patrushev V.V.	RU2179193C2
METHOD OF PRODUCING IRIDIUM (III) CHLORIDE SALTS	2010	Il'Jashevich Viktor Dmitrievich Pavlova Elena Igorevna	RU2437838C1
METHOD FOR OBTAINING COATINGS BASED ON METALS OF PLATINUM GROUP ON POLE TIPS OF ENDOCARDIAL ELECTRODES	2016	Ilin Igor Yurevich Dorovskikh Svetlana Igorevna Basova Tamara Valerevna Gelfond Nikolaj Vasilevich Morozova Natalya Borisovna	RU2630400C1
METHOD OF PRODUCING TETRAKIS-(TRIFLUOROPHOSPHINE) OF ISOTOPE-ENRICHED NICKEL	2019	Merkulov Igor Aleksandrovich Tikhomirov Denis Valerevich Obedin Andrej Viktorovich Zhabin Andrej Yurevich Paretskova Svetlana Aleksandrovna Tomarev Artem Nikolaevich Kudrina Yuliya Veniaminovna Grigoreva Viktoriya Andreevna	RU2707035C1
METHOD FOR SELECTIVE EXTRACTION OF RHODIUM RH, RUTHENIUM RU AND IRIDIUM IR FROM HYDROCHLORIC ACID SOLUTIONS OF CHLORINE COMPLEXES OF PLATINUM PT (IV), PALLADIUM PD (II), GOLD AU (III), SILVER AG (I), RHODIUM RH (III), RUTHENIUM RU (IV) AND IRIDIUM IR (IV)	2020	Fedoseev Igor Vladimirovich Vasekin Vasilij Vasilevich Maramygina Mariya Vyacheslavovna Rovinskaya Natalya Valentinovna	RU2742994C1
METHOD OF AFFINATED RUTHENIUM PRODUCING	1995	Il'Jashevich V.D. Rjumin A.I. Mamonov S.N. Sidorenko Ju.A. Khodjukov B.P.	RU2094501C1
CHARGE FOR PRODUCING IRIDIUM CARBONYL	0	Shvartsman Rudolf Abramovich Ginzburg Arkadij Aleksandrovich Mnukhin Aleksandr Samuilovich Gubernskij Yurij Ivanovich Kostylev Aleksandr Ivanovich Mikhajlov Aleksej Alekseevich Kuznetsov Sergej Ivanovich	SU1611871A1

RU 2 419 517 C2

Authors

Rysev Vadim Sergeevich

Dolgov Sergej Gennad'Evich

Aref'Ev Dmitrij Gennad'Evich

Dates

2011-05-27—Published

2009-07-20—Filed