RU1410378C - Method for producing rhenium-to-rhodium alloy - Google Patents

Method for producing rhenium-to-rhodium alloy Download PDF

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RU1410378C
RU1410378C SU4144926A RU1410378C RU 1410378 C RU1410378 C RU 1410378C SU 4144926 A SU4144926 A SU 4144926A RU 1410378 C RU1410378 C RU 1410378C
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Russia
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rhenium
temperature
complex compound
rhodium
quartz tube
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Russian (ru)
Inventor
А.В. Беляев
С.В. Коренев
В.И. Лисойван
С.А. Громилов
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Новосибирский институт органической химии СО РАН
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Priority to SU4144926 priority Critical patent/RU1410378C/en
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Abstract

FIELD: metallurgy, particularly, manufacture of metal powders. SUBSTANCE: complex compound of dichlorotetrapyridinerhodium (III) perrhenate is charged into quartz boat and then placed in quartz tube. This method prescribes maintaining continuous hydrogen flow through quartz tube, stepping up temperature to point between 450 and 470 C during 30 min, standing complex compound at this temperature during 10 to 15 min and then allowing it to cool to room temperature. This is the way processes of decomposition and reduction result in production of powdery alloy consisting of 50 % rhenium and 50 % rhodium. EFFECT: simpler method of preparing rhenium-to-rhodium alloy. 1 tbl

Description

Изобретение относится к порошковой металлургии, в частности к производству сплавов рения с родием. The invention relates to powder metallurgy, in particular to the production of rhenium alloys with rhodium.

Целью изобретения является упрощение технологического процесса. The aim of the invention is to simplify the process.

Комплексное соединение дихлортетрапиридинродий (III) перрената загружают в кварцевую лодочку, помещают в кварцевую трубу и устанавливают постоянный ток водорода через нее. В течение 30 мин температуру повышают до 450-470oC. Комплексное соединение выдерживают при этой температуре 10-15 мин, а затем охлаждают до комнатной температуры. В результате разложения и восстановления получен порошок сплава: 50% рения, 50% родия. При повышении температуры выше 470oC процесс протекает слишком бурно, что приводит к выбросу материала из лодочки. При понижении температуры ниже 450oC реакция разложения протекает медленно и не доходит до конца.The complex compound of dichlorotetrapyridinrodium (III) perrenate is loaded into a quartz boat, placed in a quartz tube, and a direct current of hydrogen is established through it. Within 30 minutes the temperature was raised to 450-470 o C. The complex compound was kept at this temperature for 10-15 minutes, and then cooled to room temperature. As a result of decomposition and reduction, an alloy powder was obtained: 50% rhenium, 50% rhodium. When the temperature rises above 470 o C, the process proceeds too violently, which leads to the ejection of material from the boat. When the temperature drops below 450 o C, the decomposition reaction proceeds slowly and does not reach the end.

П р и м е р. Кварцевую лодочку с 0,2625 г [RhPy4Cl2] ReO4 помещают в кварцевую трубку, устанавливают постоянный ток водорода (2 мл/с) через кварцевую трубку и медленно в течение 30 мин повышают температуру до 450-470oC, выдерживают лодочку с веществом при этой температуре 10-15 мин, затем охлаждают систему до комнатной температуры.PRI me R. A quartz boat with 0.2625 g of [RhPy 4 Cl 2 ] ReO 4 is placed in a quartz tube, a constant flow of hydrogen (2 ml / s) is established through the quartz tube and the temperature is slowly raised to 450-470 o C over 30 minutes, the boat is kept with the substance at this temperature for 10-15 minutes, then cool the system to room temperature.

Результаты опытов приведены в таблице. The results of the experiments are shown in the table.

Таким образом, использование комплексного соединения [RhPy4Cl2] ReO4 для получения сплава приводит к получению сплава состава 50 ат.% рения на 50 ат.% родия, упрощает процесс за счет исключения долгих стадий прессования, спекания в вакууме при 1500oC и плавки в дуговой печи с вольфрамовым нерасходуемым электродом в атмосфере очищенного гелия, а также снижает энергетические затраты за счет уменьшения температур.Thus, the use of the complex compound [RhPy 4 Cl 2 ] ReO 4 to obtain an alloy results in an alloy with a composition of 50 at.% Rhenium per 50 at.% Rhodium, simplifies the process by eliminating the long stages of pressing, sintering in vacuum at 1500 o C and melting in an arc furnace with a tungsten non-consumable electrode in an atmosphere of purified helium, and also reduces energy costs by reducing temperatures.

Claims (1)

СПОСОБ ПОЛУЧЕНИЯ СПЛАВА РЕНИЯ С РОДИЕМ, включающий разложение комплексного соединения в токе водорода, отличающийся тем, что, с целью упрощения технологического процесса, в качестве комплексного соединения используют дихлортетрапиридинродий (III) перрената, а разложение осуществляют при 450 - 470oС.METHOD FOR PRODUCING A RHENIUM ALLOY WITH RODIUM, including decomposition of the complex compound in a stream of hydrogen, characterized in that, in order to simplify the process, dichlorotetrapyridinodium (III) perrenate is used as the complex compound, and the decomposition is carried out at 450 - 470 o C.
SU4144926 1986-11-10 1986-11-10 Method for producing rhenium-to-rhodium alloy RU1410378C (en)

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SU4144926 RU1410378C (en) 1986-11-10 1986-11-10 Method for producing rhenium-to-rhodium alloy

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Application Number Priority Date Filing Date Title
SU4144926 RU1410378C (en) 1986-11-10 1986-11-10 Method for producing rhenium-to-rhodium alloy

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RU1410378C true RU1410378C (en) 1994-10-15

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SU4144926 RU1410378C (en) 1986-11-10 1986-11-10 Method for producing rhenium-to-rhodium alloy

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Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
C.Lecaille. Comptrend. Tournees etud. Tolid. finement divises, Saclay, 1967, Paris, 1968, 195-200. Discuss, 201. *
Савицкий Е.М. и др. Сплавы рения. М.: Наука, 1965, с.138. *

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