公开(公告)号：US3657351A

公开(公告)日：1972-04-18

申请号：US3657351D

申请日：1968-09-27

Applicant: AGENCY IND SCIENCE TECHN

Inventor： ARAKI MICHIO ,  UCHIDA HIROSHI ,  KOTERA YOSHIHIDE

IPC: C07C45/00 ,  C07C45/71 ,  C07C45/72 ,  C07C49/04 ,  C07C45/16

CPC classification number: C07C49/04 ,  C07C45/002 ,  C07C45/71 ,  C07C45/72

Abstract: A PROCESS OF PREPARING 2,6,8-TRIMETHYL-4-NONANONE WHICH COMPRISES PASSING A SECONDARY ALCOHOL OR A MIXTURE THEREOF WITH THE CORRESPONDING KETONE THROUGH A BINARY CATALYST PREPARED FROM CHROMIUM OXIDE AND COPPER OXIDE OR A TERNARY CATALYST PREPARED FROM CHROMIUM OXIDE, COPPER OXIDE AND ZINC OXIDE AT FROM ABOUT 200*C. TO ABOUT 350*C.

公开(公告)号：DE3103171A1

公开(公告)日：1981-12-10

申请号：DE3103171

申请日：1981-01-30

Applicant: AGENCY IND SCIENCE TECHN

Inventor： TAKAYA HARUO ,  HOSOYA TADASUKE ,  OGAWA KIYOSHI ,  SHIN SHIGEMITSU ,  ARAKI MICHIO ,  SUZUKI KUNIO ,  TODO NAOYUKI

IPC: B01J23/883 ,  B01J27/22 ,  B01J37/18 ,  C07C1/04 ,  B01J23/88 ,  C07C9/04

Abstract: The invention provides a novel highly heat-resistant solid catalyst for the methanation of hydrogen and carbon monoxide into methane. Different from conventional nickel catalysts, the inventive catalyst comprises a binary active ingredient composed of an alloy of nickel and molybdenum and a molybdenum carbide supported on a porous catalyst carrier. The catalyst is prepared by heating a catalyst intermediate comprising the oxides of nickel and molybdenum supported on the carrier in a gaseous mixture of hydrogen and carbon monoxide at 500 DEG -700 DEG C., preferably, following a step of hydrogen reduction at 400 DEG -900 DEG C. The most preferable catalyst carrier is a mixture or a composite oxide compound composed of magnesium and aluminum oxides. The methanation reaction can be carried out with the inventive catalyst at a much higher temperature, e.g. 650 DEG C., than with conventional catalysts so that the heat recovery from the gaseous product is greatly facilitated contributing to the energy economy.

公开(公告)号：DE2449883A1

公开(公告)日：1975-09-25

申请号：DE2449883

申请日：1974-10-21

Applicant: AGENCY IND SCIENCE TECHN

Inventor： ISHIKAWA TOSHIO ,  HAYAKAWA TAKASHI ,  NISHIMURA TSUTOMU ,  ARAKI MICHIO ,  TAKEHIRA KATSUOMI

IPC: B01J23/00 ,  B01J23/28 ,  C07B61/00 ,  C07C1/00 ,  C07C5/48 ,  C07C11/12 ,  C07C67/00 ,  C07C5/36

Abstract: A process for the production of conjugated diolefins having 4-6 carbon atoms from the corresponding monoolefins according to the oxidative dehydrogenation process wherein oxides of molybdenum, arsenic and an alkaline earth metal are used as catalyst. The use of this catalyst enables the production of conjugated diolefins in a high yield.