Abstract:
The present invention relates to a method for preparing sulfonized phenylsiloxane solid-acid catalyst, sulfonized phenylsiloxane solid-acid catalyst prepared thereby and a method for preparing 5-hydroxymethylfurfural from fructose using the same. 5-hydroxymethylfurfural (5-HMF) can be selectively prepared by applying a catalyst prepared via various methods for preparing sulfonized phenylsiloxane solid-acid catalyst to the dehydration reaction of fructose. The sulfonized phenylsiloxane solid-acid catalyst prepared via an optimized synthesis method has very excellent catalytic activities and stability, and can provide an efficient method for preparing the 5-hydroxymethylfurfural (5-HMF) because the sulfonized phenylsiloxane solid-acid catalyst can be separated and reused after reaction and provides excellent activities and stability in a continuous reaction process. [Reference numerals] (AA) Fructose conversion rate; (BB) HMF selectivity; (CC) Number of reusing
Abstract:
본발명은삼원금속을포함하는유무기하이브리드나노세공체및 이의용도에관한것으로, 더욱상세하게는구리를중심금속으로함유하는다공성유-무기복합체에서중심금속인구리(Cu) 이외에추가적인이종의중심금속으로서 Zn, Ni 또는 Co와함께 Cr, Mo 또는 W와같은 6가의높은산화상태를갖는 VIB(6B)족금속을중심금속으로치환시켜 3원금속을함유하는다공성유-무기복합체를제공할수 있다. 또한, 본발명의나노세공체는높은금속함량과작은결정크기로인해많은촉매활성점과높은기공부피및/또는비표면적을제공하여촉매, 기체분리등 다양한용도에서유용하게이용될수 있다.
Abstract:
본발명은삼원금속을포함하는유무기하이브리드나노세공체및 이의용도에관한것으로, 더욱상세하게는구리를중심금속으로함유하는다공성유-무기복합체에서중심금속인구리(Cu) 이외에추가적인이종의중심금속으로서 Zn, Ni 또는 Co와함께 Cr, Mo 또는 W와같은 6가의높은산화상태를갖는 VIB(6B)족금속을중심금속으로치환시켜 3원금속을함유하는다공성유-무기복합체를제공할수 있다. 또한, 본발명의나노세공체는높은금속함량과작은결정크기로인해많은촉매활성점과높은기공부피및/또는비표면적을제공하여촉매, 기체분리등 다양한용도에서유용하게이용될수 있다.
Abstract:
본발명은인듐및/또는주석함유용액또는혼합물으로부터의흡탈착과정을이용한인듐또는주석의회수방법에관한것으로, 본발명에따른인듐또는주석의회수방법은인듐, 주석또는둘다를포함하는해수, 산업용수, 폐수, 냉각수, 디스플레이패널과같은전자제품제조공정에서발생하는산업폐수, 디스플레이패널과같은전자제품폐기물로부터추출되는용액또는디스플레이패널과같은전자제품폐기물, 특히 ITO 에칭폐액또는폐 ITO 슬러지등으로부터인듐및/또는주석을매우높은선택도및 효율로흡/탈착과정을통해회수할수 있다.