国家/地区 中国（2）
IPC部 B（2）
IPC大类 B01（2）
IPC小类 B01D（2）
IPC B01D067/00（2）
发明人 LI C（2）
公开年 2023（2）
申请年 2023（2）
专利权人

Preparing diamines and polyamines containing diphenylmethane structure with low acid consumption comprises e.g. undergoing salt-forming reaction to generate aniline salt, mixing aniline salt and formaldehyde solution for reaction, adding solution to separator, and washing organic phase with alkali.

LI C, CUI C, ZHANG H, LI Y, ZHANG Y, LIN F

Nano-hybrid film useful for separating volatile gas-state component in traditional Chinese medicine volatile component separation process comprises polymer support layer and polymer separation layer of modified inorganic nano material deposited on surface of support layer.

LI Y, HUANG Y, WANG C, LI W, LI C, LIU X, WU B