Evonik Degussa Gmbh

Degussa Aktiengesellschaft

Aiping Chen

Klaus Huthmacher

Christoph Weckbecker

Jan-Olaf Barth

Qi Yuan Wang

Yiquan Yang

Weiping Fang

Shenjun Dai

Hubert Redlingshöfer

Hongbin Zhang

Xingguo Yan

Sabine Ackermann

Renchun Lin

Youzhu Yuan

Quanxing Zheng

Yingjuan Hao

Lingmei Yang

Qiaoling Li

Qi Wang

This invention is related to a preparation method of a supported catalyst Mo&#x2014;O&#x2014;K-MeOfor the synthesis of methanethiol from HS-containing syngas. The catalyst comprises of an active component of Mo&#x2014;O&#x2014;K-based species, an active promoter and a support denoted as metal (or metals)-carrier. The support is prepared by electroless plating method in such a way that the metal or metals chosen are plated onto the surface of the carrier. Transition metal, especially Fe, Co or Ni are selected to be the plating metal, while SiO, AlOor TiOare selected to be carrier. The catalyst thus prepared is found to be efficient for the synthesis of methanethiol from HS-containing syngasor carbon oxides/hydrogen mixtures, especially regarding a minor formation of the by-product CO.

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A method is described to prepare a Mo containing supported catalyst comprising TeOas active promoter and a process for preparing methanethiol in the presence of said catalyst.

Mo containing catalyst, a preparation method and a method for preparing methyl mercaptan

The present invention refers to a continuous process for the manufacture of methyl mercaptan using Mo&#x2014;O&#x2014;K-based catalysts. It is further described that the total selectivity of methylmercaptan can be increased by at least 1% by lowering the total gas hourly space velocity. The invention further refers to a process for the preparation of a solid, preformed catalyst system.

Process for the manufacture of methylmercaptan

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Xiamen, China

Aiping Chen