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Method for production of supported ruthenium and method for production of chlorine

A manufacturing method and carrier technology, applied in the field of ruthenium loading, can solve the problems of low cost, need to be replaced soon, expensive ruthenium compounds, etc., and achieve the effect of low cost

Inactive Publication Date: 2008-12-03
SUMITOMO CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] Carriers such as ruthenium compounds or metal ruthenium components, such as ruthenium compounds or metal ruthenium, are loaded with ruthenium because they show high catalytic activity for the reaction of hydrogen chloride oxidation with oxygen, so they are preferably used as catalysts for chlorine production (for example, refer to EP0743277A1, EP0743277A1, USP5908607, EP936184A2 and US2002 / 0028173), but the ruthenium compound as raw material is very expensive, and in use because of the sintering of ruthenium component etc. and catalytic activity can reduce gradually, must replace soon, so use the chlorine that supports ruthenium in the catalyst In the manufacture of catalysts, reducing catalyst costs has become an important issue

Method used

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Examples

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Embodiment

[0026] Examples of the present invention are shown below, but the present invention is not limited by these Examples. In the examples, parts and % showing the usage amount or content are based on weight unless otherwise specified.

[0027] (a-1) Preparation of Catalyst 1

[0028] Mix 34 parts of titanium oxide [STR-60R, 100% rutile type manufactured by Seika Chemical Co., Ltd.] and 66 parts of α-alumina [AES-12 manufactured by Sumitomo Chemical Co., Ltd.], and then add pure water for kneading . The kneaded product was extruded into a cylindrical shape with a diameter of 1.5 mmφ, dried, and crushed to a length of about 2 to 4 mm. The obtained compact was fired in air at about 600° C. for 3 hours to obtain a carrier composed of a mixture of titanium oxide and α-alumina. The carrier was impregnated with a commercially available aqueous solution of ruthenium chloride hydrate, dried, and then calcined in air at about 250° C. for 2 hours, thereby obtaining a carrier with a loadin...

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Abstract

A supported ruthenium can be produced by collecting a ruthenium compound from a supported ruthenium which has been used as a catalyst in the production of chlorine by oxidation of hydrogen chloride with oxygen, and then supporting the ruthenium compound on a carrier. Chlorine can be produced by oxidizing hydrogen chloride with oxygen in the presence of the supported ruthenium.

Description

technical field [0001] The present invention relates to a method for producing supported ruthenium in which a ruthenium component such as a ruthenium compound or metal ruthenium is supported on a carrier. In addition, the present invention also relates to a method for producing chlorine by using supported ruthenium produced by the method in a catalyst and oxidizing hydrogen chloride with oxygen. Background technique [0002] Carriers such as ruthenium compounds or metal ruthenium components, such as ruthenium compounds or metal ruthenium, are loaded with ruthenium because they show high catalytic activity for the reaction of hydrogen chloride oxidation with oxygen, so they are preferably used as catalysts for chlorine production (for example, refer to EP0743277A1, EP0743277A1, USP5908607, EP936184A2 and US2002 / 0028173), but the ruthenium compound as raw material is very expensive, and in use because of the sintering of ruthenium component etc. and catalytic activity can redu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J38/12B01J23/46B01J23/96C01B7/04
CPCB01J23/96C01B7/04B01J38/68B01J23/462B01J21/06B01J21/063B01J37/0009B01J38/10C22B11/026Y02P10/20Y02P20/584
Inventor 关航平
Owner SUMITOMO CHEM CO LTD
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