公开(公告)号：WO2012008560A1

公开(公告)日：2012-01-19

申请号：PCT/JP2011/066173

申请日：2011-07-11

Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED ,  NISHIMOTO, Junichi ,  SEKI, Kohei

Inventor： NISHIMOTO, Junichi ,  SEKI, Kohei

IPC: B01J23/46 ,  C01B7/04 ,  C01G55/00

CPC classification number: B01J21/063 ,  B01J21/08 ,  B01J23/462 ,  B01J35/026 ,  B01J35/1014 ,  B01J37/0018 ,  B01J37/0063 ,  B01J37/0201 ,  C01B7/04 ,  C01G23/08 ,  C01G55/004

Abstract: Disclosed are a process for producing a supported ruthenium oxide excellent in thermal stability and catalyst lifetime, and a process for stably producing chlorine by the use of the supported ruthenium oxide obtained by the above-described process, for a longer time. The process for producing a supported ruthenium oxide comprises the steps of supporting a ruthenium compound on a powdery titania carrier, and calcining the powdery titania carrier with the ruthenium compound thereon, under an atmosphere of an oxidizing gas, wherein the powdery titania carrier comprises titania and silica supported on the titania, and wherein a ratio of rutile type titania to total of the rutile type titania and anatase type titania in the powdery titania carrier is 50% or more, when measured by the X-ray diffraction method. Chlorine is produced by oxidizing hydrogen chloride with oxygen in the presence of the supported ruthenium oxide thus produced, as a catalyst.

Abstract translation: 公开了一种制备热稳定性和催化剂寿命优异的负载氧化钌的方法，以及通过使用通过上述方法获得的负载氧化钌来稳定地生产氯的方法。 制备负载氧化钌的方法包括以下步骤：在粉末状二氧化钛载体上负载钌化合物，并在氧化气体气氛下，用其上的钌化合物煅烧粉末状二氧化钛载体，其中粉状二氧化钛载体包含二氧化钛和 二氧化硅负载在二氧化钛上，并且其中，当通过X射线衍射法测量时，二氧化钛粉末中的金红石型二氧化钛与金红石型二氧化钛和锐钛型二氧化钛的总量的比例为50％以上。 在由负载的氧化钌存在下，作为催化剂，通过氧化氯化氢来制备氯。