国家/地区 中国（3）
IPC部 B（3）
IPC大类 B01（3） C07（2）
IPC小类 B01J（3）
IPC B01J023/30（3）
发明人
公开年 2022（3）
申请年 2021（3） 
专利权人

Esterification of purified terephthalic acid and 1,4-butanediol useful for producing polybutylene adipate terephthalate, comprises adding terephthalic acid, 1,4-butanediol and polymerization degree catalyst into a reaction kettle, introducing nitrogen, and reacting.

LIU G, LIU S, XU W, GUO T, HAN Y, ZHOU B, ZHENG L, LIU Y, HAO D, WANG X, CAO F, WANG C, WANG M, LI Z, LI J, ZHAO N, SHI C, SHI R

Photo-catalytic ceramic glaze used for the inner wall of the chimney, comprises a base material, carbon material, a photo-catalytic material and an infrared conversion material.

MA Y, WEN X

Method for preparing structured solid acid catalyst by ultrasonic coupling microwave used for preparing ethyl lactate, involves immersing porous material carrier with microwave absorption performance in solution of heteropolyacid, heteropolyacid salt, zirconia, tungsten oxide and niobium oxide.

SHEN H, GAO X, FAN X, JIAO Y, ZHANG J