公开(公告)号：US3584061A

公开(公告)日：1971-06-08

申请号：US3584061D

申请日：1964-08-03

Applicant: DOW CHEMICAL CO

Inventor： OLSTOWSKI FRANCISZEK ,  WATSON JOHN D

IPC: B01J27/22 ,  C07C29/09 ,  C07C29/10 ,  C07C29/128 ,  C07C29/38 ,  C07C37/20 ,  C07C45/72 ,  C07C49/17 ,  C07C51/09 ,  C07D317/12 ,  C07C39/16

CPC classification number: B01J27/22 ,  C07C29/38 ,  C07C37/20 ,  C07C41/56 ,  C07C45/515 ,  C07C45/72 ,  C07C51/09 ,  C07C67/08 ,  C07D317/12 ,  C07C49/17 ,  C07C43/303 ,  C07C43/305 ,  C07C31/36 ,  C07C69/14 ,  C07C69/157 ,  C07C69/58 ,  C07C53/02 ,  C07C53/08 ,  C07C49/08 ,  C07C39/16

Abstract: ACID-CATALYZED REACTIONS SUCH AS ALDOL CONDENSATIONS, ACETAL AND KETAL PREPARATIONS, ESTERIFICATIONS, VARIOUS HYDROLYSIS REACTIONS, THE REACTION OF A KETONE OR ALDEHYDE WITH A PHENOL TO MAKE AN ALKYLIDENE-BISPHENOL, AND THE POLYMERIZATION OF EPOXIDES AND THE ALKYLENE IMINES ARE ADVANTAGEOUSLY CARRIED OUT WHEN THE ACID CATALYST IS GRAPHITE OR AMORPHOUS CARBON TREATED WITH FUMING NITRIC OR SULFURIC ACIDS OR A MIXTURE OF THE CONCENTRATED ACIDS. THE ACID CATALYST IS REUSABLE FOR SUCCESSIVE REACTIONS WITHOUT RAPID DIMINUTION OF ACID STRENGTH.

公开(公告)号：US3067263A

公开(公告)日：1962-12-04

申请号：US84419759

申请日：1959-10-05

Applicant: DOW CHEMICAL CO

Inventor： NEWPORT III JOHN J ,  FRANCISZEK OLSTOWSKI ,  JONES CREEK ,  WATSON JOHN D

IPC: C07C17/26 ,  C07C17/266

CPC classification number: C07C17/266 ,  C07C21/18

公开(公告)号：US3062901A

公开(公告)日：1962-11-06

申请号：US84419859

申请日：1959-10-05

Applicant: DOW CHEMICAL CO

Inventor： NEWPORT III JOHN J ,  FRANCISZEK OLSTOWSKI ,  WATSON JOHN D

IPC: C07C17/26

CPC classification number: C07C17/266 ,  C07C21/18

公开(公告)号：US3089910A

公开(公告)日：1963-05-14

申请号：US84419659

申请日：1959-10-05

Applicant: DOW CHEMICAL CO

Inventor： FRANCISZEK OLSTOWSKI ,  JONES CREEK ,  WATSON JOHN D

IPC: C07C17/26

CPC classification number: C07C17/266 ,  C07C21/18