Show metadata Hide metadata

(19)

(11)

2 447 078

(13)

(51)

IPC

C07F7/20(2006-01-01)

C07F7/10(2006-01-01)

C07F7/18(2006-01-01)

(21) (22)

Application

2010145046/04, 2010-11-08

(24)

Start date

2010-11-08

(22)

Actual filing date

2010-11-08

(45)

Published

2012-04-10

(72)

Inventor

Grinberg Evgenij EfimovichLevin Jurij IsaakovichSandu Roman AleksandrovichUkhin Vladimir IvanovichRjabtseva Marina ViktorovnaStrel'Nikova Inna Evgen'Evna

(73)

Holder

Rossijskaja Federatsija, Ot Imeni Kotoroj Vystupaet Ministerstvo Obrazovanija I Nauki Rossijskoj FederatsiiFederal'Noe Gosudarstvennoe Unitarnoe Predprijatie Ordena Trudovogo Krasnogo Znameni Nauchno-Issledovatel'Skij Institut Khimicheskikh Reaktivov I Osobo Chistykh Khimicheskikh Veshchestv"

METHOD OF PURIFYING LIQUIDS, VOLATILE ALKYLSILOXANES AND ALKYLSILAZANES Russian patent published in 2012 - IPC C07F7/20 C07F7/10 C07F7/18

Abstract RU 2447078 C1

FIELD: chemistry.

SUBSTANCE: invention relates to fine purification of alkylsiloxanes and alkylsilazanes which are used in making light-sensitive resistors and in microelectronics. Disclosed is a purification method comprising three basic steps: fractionation, filtration in liquid and vapour phases on porous polymer filters with pore size 0.1-0.2 mcm and evaporation, followed by condensation in bubble-free conditions at evaporation rate of 0.01-0.2 cm³/h·cm².

EFFECT: disclosed method enables to obtain highly pure alkylsiloxanes and alkylsilazanes with basic substance content of about 99,99 wt % and content of heterogeneous trace elements less than 10 particles per cm³.

1 cl, 6 ex

Similar patents RU2447078C1

Title	Year	Author	Number
METHOD OF PURIFYING PHOSPHORUS TRICHLORIDE	2010	Grinberg Evgenij Efimovich Levin Jurij Isaakovich Rjabtseva Marina Viktorovna Bykov Ivan Sergeevich Piljugin Valerij Mikhajlovich Zakolodina Tat'Jana Vjacheslavovna	RU2446094C1
METHOD OF PURIFYING TETRAMETHOXYSILANE	2011	Grinberg Evgenij Efimovich Strel'Nikova Inna Evgen'Evna Sandu Roman Aleksandrovich Rjabtseva Marina Viktorovna Ukhin Vladimir Ivanovich Mikhel' Vasilij Sergeevich Levin Jurij Isaakovich Zhadanov Vasilij Borisovich	RU2463305C1
METHOD OF PURIFYING ACETIC ACID	2010	Vendilo Andrej Grigor'Evich Trokhin Vasilij Evgen'Evich Popov Aleksej Konstantinovich Kovaleva Natal'Ja Evgen'Evna	RU2440969C1
METHOD OF TETRAETHOXYSILANE PURIFICATION	2013	Grinberg Evgenij Efimovich Amelina Anna Evgen'Evna Kuznetsov Aleksandr Ivanovich Levin Jurij Isaakovich Kotov Daniil Vladimirovich Rjabenko Evgenij Aleksandrovich	RU2537302C1
METHOD OF PRODUCING THERMAL ORTHOPHOSPHORIC ACID	2010	Grinberg Evgenij Efimovich Levin Jurij Isaakovich Filatova Ljudmila Nikolaevna Bykovskaja Alla Sergeevna Piljugin Valerij Mikhajlovich Zakolodina Tat'Jana Vjacheslavovna	RU2464225C2
METHOD OF PRODUCING HEXAMETHYLDISILOXANE	1992	Grinberg E.E. Nechaeva G.Ju. Efremov A.A.	RU2032687C1
HEXAFLUOROBUTADIENE PURIFICATION METHOD	2002	Makhmutov F.A. Mishkin R.N. Oono Khiromoto	RU2244705C2
MALEIC ANHYDRIDE PURIFICATION METHOD	2008	Grinberg Evgenij Efimovich Levin Jurij Isaakovich Basistov Evgenij Aleksandrovich	RU2399618C1
METHOD FOR PURIFICATION OF ACETONITRILE FROM ACRYLONITRILE AND ALLYL ALCOHOL IMPURITIES	0	Egorenko Georgij Aleksandrovich Ryzhankova Antonina Karpovna Vereshchagina Tatyana Mikhajlovna Kolchina Erika Anatolevna Khrennikova Olga Viktorovna Golubeva Irina Borisovna	SU1754710A1
METHOD OF PURIFYING POTASSIUM NITRATE	2011	Polishchuk Ol'Ga Mikhajlovna Fakeev Aleksandr Andreevich Murskij Georgij Leonidovich Vendilo Andrej Grigor'Evich	RU2491229C1

RU 2 447 078 C1

Authors

Grinberg Evgenij Efimovich

Levin Jurij Isaakovich

Sandu Roman Aleksandrovich

Ukhin Vladimir Ivanovich

Rjabtseva Marina Viktorovna

Strel'Nikova Inna Evgen'Evna

Dates

2012-04-10—Published

2010-11-08—Filed