King Ma Phones & Addresses
-
210 Wells Fargo Dr, Houston, TX 77090
-
Boise, ID
-
2715 100Th Ave, Denver, CO 80260 (303) 469-4296
-
Federal Heights, CO
-
Kingwood, TX
-
Spring, TX
-
Polkville, NC
-
Hollywood, FL
-
2507 Deer Mountain Ct, Humble, TX 77345
Business Records
Name / Title
Company / Classification
Phones & Addresses
Director
JENBEN CORPORATION
13433 State Hwy 249 STE 1, Houston, TX 77086
11819 Loveland Pass Dr, Houston, TX 77088
11819 Loveland Pass Dr, Houston, TX 77088
Publications
Us Patents
Multiphase Oxidation Of Alcohol To Aldehyde
View pageUS Patent:
43060838, Dec 15, 1981
Filed:
May 15, 1980
Appl. No.:
6/150017
Inventors:
King W. Ma - Houston TX
Assignee:
The Dow Chemical Company - Midland MI
International Classification:
C07C 4538
US Classification:
568432
Abstract:
In a two-phase liquid medium comprising an aqueous alkaline solution and an organic solvent, molecular oxygen and a noble metal-containing catalyst can be used to oxidize aryl-substituted alcohols of the formula AR(--CH. dbd. CH--). sub. n CH. sub. 2 OH wherein n is 0, 1 or 2, to the corresponding aldehydes. More specifically, the oxidation of an aromatic alcohol, such as p-methoxybenzyl alcohol, can be efficiently carried out in a multiphase system comprising a 5 percent palladium-on-charcoal catalyst, an organic solvent such as methylene chloride, in contact with an aqueous sodium hydroxide solution, in the presence of air or oxygen with good agitation followed by separation of the two phases, recovery of the aldehyde product from the organic solvent and recycle of the aqueous phase without neutralization.