国家/地区 中国（5）
IPC部 B（6）
IPC大类 B01（6）
IPC小类 B01J（6）
IPC B01J020/30（4） B01J020/26（3） C07H015/256（3）
C07H001/06（2） C07H001/08（2） C08F222/14（2）
C08F230/06（2） C08F292/00（2）
发明人 WANG S（3） XING F（3） XING W（3）
公开年 2021（5）
申请年 2020（6）
专利权人 BENGBU HUADO.（3）

Preparing sildenafil free base by e.g. treating aryl aldehyde derivatives with amino derivatives in presence of acid catalyst to cyclized pyrimidin-one derivatives and continuous flow reaction of resultant in presence of chlorosulfuric acid.

PABBARAJA S, SINGH A K, STHALAM V K, MAHAJAN B

Catalytic regeneration of NAD(P)H by supported metal catalyst comprises reducing oxidized coenzyme under action of supported metal catalyst to obtain reduced coenzyme NAD(P)H.

SU H, WANG Y, XIAO G

Preparing molecularly imprinted material useful for separation and purification of steviol glycoside RA comprises e.g. subjecting vinyl-containing silane coupling agent to surface modification reaction with graphene oxide, and polymerizing.

XING F, XING W, WANG S

Extracting rebaudioside A from Stevia rebaudiana comprises extracting dry leaves of Stevia rebaudiana to obtain an extract, applying the extract to a separation column packed with molecularly imprinted composite materials and eluting.

XING F, XING W, WANG S

Adsorption resin for separation and purification of steviol glycosides, comprises functional monomers and vinyl functionalized graphene oxide, crosslinking agent and initiator and which is obtained by polymerization reaction in porogen.

XING F, XING W, WANG S

Separation and purification of rhamnolipid includes preparing graphene oxide, performing cationic modification on graphene oxide, adding cationic modified graphene oxide and performing adsorption.

NIE M, NIE H, CUI Y