Potassium osmate production process

A kind of technology of potassium osmate and its production method, applied in the direction of ruthenium/rhodium/palladium/osmium/iridium/platinum compound, inorganic chemistry, chemical instrument and method, etc., can solve the problem of collection, packaging, storage and use, and inconvenient use and other issues, to achieve the effect of convenient transportation and use, and stable properties

Active Publication Date: 2017-12-12
南京东锐铂业有限公司 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The preparation of osmium tetroxide is relatively simple, but the subsequent collection, packaging, storage and use are all troublesome, because osmium tetroxide is generated in gaseous form and needs to be condensed into crystals, and it needs to be completely sealed and packaged in ampoules. Transportation should prevent the bottle from breaking and the material from vaporizing and volatilizing. It is inconvenient to use. It is necessary to cut open the glass bottle and use it up in time.

Method used

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  • Potassium osmate production process
  • Potassium osmate production process
  • Potassium osmate production process

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with specific examples.

[0021] (1) pyrometallurgy

[0022] 1. Fire method: fully stir the pure osmium powder and sodium peroxide at a ratio of 1:3, and put it in an iron pot. Usually spread a layer of sodium peroxide on the bottom of the pot first, pour part of the osmium powder, add some sodium peroxide, and stir well; then pour the osmium powder, add sodium peroxide, and stir well until all the osmium powder is added, set aside Sodium peroxide partially covers the surface.

[0023] Put the iron pot in the fire method furnace, cover the furnace lid, and gradually heat up to 650-680 degrees. Keep the temperature constant for 2 to 3 hours, stirring several times in the middle. Lift out the iron pan, let it cool slightly, transfer the material into an iron box while it is still hot, smash it into small pieces, and let it cool down. Related responses:

[0024] Os+Na 2 o 2 →Na 2 OSo 4 +Na 2 O+O...

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Abstract

The invention relates to a new synthetic process of potassium osmate, wherein the synthetic process comprises the steps of fire process, water immersion, neutralization, filtration and washing, distillation, crystallization and the like. A pure osmium powder is used as a raw material, osmium enters a solution by the way of fire-process smelting, and the compound potassium osmate is obtained by oxidation distillation, crystallization and other steps. The potassium osmate is a powder crystal at room temperature, has stable properties and more convenient storage, transport and use compared with osmium tetroxide, and solves the defects of fewer commonly used osmium compounds and troublesome osmium compound collection, packaging, storage and use in the prior art.

Description

technical field [0001] The invention relates to the technical field of precious metal deep processing, in particular to a synthesis method of an osmium-containing compound—potassium osmate. Background technique [0002] Osmium is mainly used in the electronics industry, chemical industry and other fields, and can be used as a hydrogenation catalyst and a biological cell stain. Osmium has more valence states, but its compounds and complexes are less than other platinum group metals. The most common compound is osmium tetroxide. The preparation of osmium tetroxide is relatively simple, but the subsequent collection, packaging, storage and use are all troublesome, because osmium tetroxide is generated in gaseous form and needs to be condensed into crystals, and it needs to be completely sealed and packaged in ampoules. It is necessary to prevent the bottle from breaking and the material from vaporizing and volatilizing during transportation. It is also inconvenient to use. It ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G55/00
CPCC01G55/00
Inventor 姚志刚王健李忠飞
Owner 南京东锐铂业有限公司
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