公开(公告)号：US3766265A

公开(公告)日：1973-10-16

申请号：US3766265D

申请日：1972-03-24

Applicant: SUMITOMO CHEMICAL CO

Inventor： SHIRAISHI T ,  HONMARU S ,  NAGAOKA Y ,  KISHIWADA S ,  SHIMIZU S ,  ZINPO K

IPC: C07C51/25 ,  C07C57/055 ,  C07C51/26 ,  C07C57/04

CPC classification number: C07C51/252 ,  C07C57/04

Abstract: IN THE PREPARATION OF ACRYLIC ACID BY THE GAS PHASE CATALYTIC OXIDATION OF ACROLEIN WITH MOLECULAR OXYGEN IN THE PRESENCE OF STEAM, A PROCESS WHEREIN THE OXIDATION IS EFFECTED N THE PRESENCE OF A CATALYST COMPOSITION CORRESPONDING TO THE FORMULA: MOA BB(LI2 SO4)COD WHEREIN A, B AND D REPRESENT RESPECTIVELY THE NUMBER OF ATOMS AND C IS THE MOL NUMBER OF LITHIUM SULFATE, AND WHEREIN A IS 12, B IS 0.1 TO 9/0, C IS 0.1 TO 9.0 AND D IS 36.25 TO 58.5. THE CATALYST COMPOSITION HAS A HIGH CATALYTIC ACTIVITY WITH A LONG CATALYTIC LIFE, AND ACRYLIC ACID IS PRODUCED IN AN EXCELLENT YIELD WITH A HIGH PURITY BY THE USE OF SUCH COMPOSITION.

公开(公告)号：US3741910A

公开(公告)日：1973-06-26

申请号：US3741910D

申请日：1971-05-28

Applicant: SUMITOMO CHEMICAL CO

Inventor： SHIRAISHI T ,  HONMARU S ,  ICHIHASHI H ,  KISHIWADA S ,  SHIMIZU S ,  NAGAOKA Y

IPC: B01J23/88 ,  B01J27/192 ,  B01J11/82

CPC classification number: B01J23/8872 ,  B01J23/8874 ,  B01J23/8875 ,  B01J23/8876 ,  B01J27/192 ,  C07C253/26 ,  Y02P20/52 ,  C07C255/08

Abstract: IN THE PRODUCTION OF ACRYLONITRILE BY A VAPOR PHASE REACTION OF PROPYLENE, AMMONIA AND OXYGEN AT AN ELEVATED TEMPERATURE, A PROCESS WHICH COMPRISES CONTACTING PROPYLENE, AMMONIA AND OXYGEN WITH A CATALYST COMPOSITION COMPRISING A CATALYST SYSTEM OF THE FORMULA:

TLAPBMOCFEDBIEMNFXGOH

WHEREIN X REPRESENTS ONE OR MORE OF THE METALS, NI, MG AND CO AND A, B, C, D, E, F, G AND H REPRESENT, RESPECTIVELY, THE RELATIVE NUMBER OF ATOMS OF EACH COMPONENT, PROVIDED THAT, WHEN C IS 12, A IS 2 OR LESS, BUT NOT 0, B IS 0 5, E IS 0.1 TO 5, F IS NOT MORE THAN 15 BUT NOT 0, G IS 0 TO 15, F+G IS 2 TO 15, AND H IS DECIDED OR DETERMINED DEPENDING ON THE NUMBER OF THE OTHER ATOMS AND IS USUALLY FROM 38.3 TO 81.5.