SU262888A1 - METHOD OF OBTAINING A FINE PLATINUM - Google Patents
METHOD OF OBTAINING A FINE PLATINUMInfo
- Publication number
- SU262888A1 SU262888A1 SU1284785A SU1284785A SU262888A1 SU 262888 A1 SU262888 A1 SU 262888A1 SU 1284785 A SU1284785 A SU 1284785A SU 1284785 A SU1284785 A SU 1284785A SU 262888 A1 SU262888 A1 SU 262888A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- platinum
- obtaining
- fine platinum
- reduced
- hydrazine hydrate
- Prior art date
Links
Description
Изобретение относитс к способам получени мелкодисперсной платины, используемой дл приготовлени катализаторов.The invention relates to methods for producing fine platinum used for the preparation of catalysts.
Известно, что мелкодисперсную платину получают при восстановлении хлорплатоатов в пделочном растворе солью гидразина. Врем восстановлени составл ет несколько суток , а удельна поверхность полученной платины не более 25 .It is known that finely dispersed platinum is obtained when chloroplatoes are reduced in a manufacturing solution with a hydrazine salt. The reduction time is several days, and the specific surface of the obtained platinum is no more than 25.
С целью сокращени времени процесса, а также дл повышени качества продукта предложен способ, по которому провод т восстановление дисульфатоплатоата кали гидразингидратом . При этом врем восстановлени сокращаетс до 40-60 мин удельна поверхность платины - более 40 , например 45, 47, 54 .In order to reduce the time of the process, as well as to improve the quality of the product, a method has been proposed by which potassium disulfate plateau is reduced by hydrazine hydrate. At the same time, the reduction time is reduced to 40-60 min. The specific surface area of platinum is more than 40, for example, 45, 47, 54.
Пример. К взвеси 10 г K2Pt(804)2 в 1000 мл дистиллированной воды постепенно прибавл ют раствор гидразингидрата (1 - 1,5 мл N2H4-H20 марки ч. д. а. в 10 мл воды)Example. To a suspension of 10 g of K2Pt (804) 2 in 1000 ml of distilled water, a solution of hydrazine hydrate is gradually added (1-1.5 ml of N2H4-H20 mark of brand d.A. in 10 ml of water)
црц комнатной температуре. Как только начинаетс выделение дисперсного осадка, добавление раствора гидразингидрата прекращают . Если реакци протекает бурно, сосуд с реакционной смесью охлаждают водой при температуре 5-10°С. Процесс восстановлени K2Pt (504)2 заканчиваетс Через 40 лшн. Осадок платиновой черни отфильтровывают, промывают водой до отрицательной реакции на ион S04. Удельна поверхность платины 47 .Crc room temperature. As soon as the precipitate begins to precipitate, the addition of the hydrazine hydrate solution is stopped. If the reaction proceeds rapidly, the vessel with the reaction mixture is cooled with water at a temperature of 5-10 ° C. The recovery process of K2Pt (504) 2 ends in 40 hours. The precipitate of platinum mobile is filtered off, washed with water until a negative reaction to the ion S04. The specific surface of platinum is 47.
Предмет изобретени Subject invention
Способ получени мелкодисперсной платины путем восстановлени ацндокомплексов нлатииы соединени ми гидразина, отличающийс тем, что, с целью сокращени времени процесса и повышени качества продукта, провод т восстановление дисульфатоплатоата кали гидразингидратом.A method of producing fine platinum by reducing the nladeia azndocomplexes with hydrazine compounds, characterized in that, in order to shorten the process time and improve the quality of the product, potassium disulfate plateau is reduced by hydrazine hydrate.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU262888A1 true SU262888A1 (en) |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6315811B1 (en) | 1999-06-18 | 2001-11-13 | W. C. Heraeus Gmbh & Co. Kg | Method for producing platinum |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6315811B1 (en) | 1999-06-18 | 2001-11-13 | W. C. Heraeus Gmbh & Co. Kg | Method for producing platinum |
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