公开(公告)号：US20170240432A1

公开(公告)日：2017-08-24

申请号：US15435801

申请日：2017-02-17

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Kwang Deog JUNG ,  Heung Yong HA ,  Jun Woo OH ,  Ho Yong JO

IPC: C01F11/18 ,  C22B7/00 ,  C21B15/00 ,  C22B7/04

CPC classification number: C01F11/181 ,  C01P2002/72 ,  C01P2004/03 ,  C01P2004/51 ,  C01P2004/62 ,  C01P2004/64 ,  C01P2006/80 ,  C21B15/00 ,  C22B7/007 ,  C22B7/04 ,  Y02P10/234

Abstract: The present invention relates to a method and a process of preparing precipitated calcium carbonate of high purity by extracting calcium ion contained in an alkali ion-containing inorganic material such as mineral, steelmaking slag and waste concrete with the use of an acidic aqueous solution, separating other metal ions from the extracted solution, preparing an alkaline earth metal hydroxide using an alkaline aqueous solution and then contacting the same with carbon dioxide.

公开(公告)号：US20150183653A1

公开(公告)日：2015-07-02

申请号：US14585936

申请日：2014-12-30

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Kwang Deog JUNG ,  Heung Yong HA ,  Jun Woo OH ,  Sung Min LEE ,  Ho Yong JO

IPC: C01F11/18 ,  C22B26/20 ,  C25B9/08 ,  C22B7/00 ,  C25B1/20 ,  C25B1/22

CPC classification number: C22B26/20 ,  C01D7/07 ,  C01D7/12 ,  C01F11/181 ,  C01P2002/72 ,  C01P2004/03 ,  C01P2004/10 ,  C01P2004/38 ,  C01P2004/39 ,  C01P2004/62 ,  C01P2006/80 ,  C22B7/007 ,  C25B1/20 ,  C25B1/22 ,  C25B9/08 ,  C25B15/08

Abstract: The present invention relates to a method for preparing a carbonate of an alkali ion using an electrolysis system, more particularly to an improved method for preparing a carbonate of an alkali ion, including eluting an alkali ion from an inorganic material containing the alkali ion and converting the eluted alkali ion to a carbonate, using an electrolysis system which generates an eluting agent and a quick precipitating agent used for the elution of the alkali ion and the conversion to the carbonate at the same time.

Abstract translation: 本发明涉及一种使用电解系统制备碱金属碳酸盐的方法，更具体地说，涉及一种制备碱金属碳酸盐的改进方法，该方法包括从含有碱金属的无机材料中洗脱出碱金属离子， 使用产生洗脱剂的电解系统和用于碱性离子洗脱的快速沉淀剂和同时转化为碳酸盐的碳酸盐洗脱的碱离子。

公开(公告)号：US20130072738A1

公开(公告)日：2013-03-21

申请号：US13623313

申请日：2012-09-20

Applicant: Korea Institute of Science and Technology

Inventor： Kwang Deog JUNG ,  Oh Shim JOO ,  Jun Woo OH ,  Shashikala VELDRUTHI

IPC: B01J23/72 ,  C07C5/333

CPC classification number: B01J21/04 ,  B01J23/8926 ,  B01J35/1019 ,  B01J37/0201 ,  B01J37/031 ,  C07C5/3337 ,  C07C2521/04 ,  C07C2523/42 ,  C07C2523/44 ,  C07C2523/72 ,  C07C2523/89 ,  C07C11/08

Abstract: Disclosed is a method for preparing butene from n-butane by direct dehydrogenation using a specific supported catalyst.When the supported catalyst of the present invention, wherein platinum, palladium or platinum and palladium as main catalyst and a copper cocatalyst are supported on an alumina support, is used to prepare n-butenes by direct dehydrogenation of n-butane, production of byproducts resulting from cracking and isomerization, deposition of carbon and inactivation of the catalyst are effectively suppressed and conversion ratio of n-butane and selectivity to n-butenes are remarkably improved.

Abstract translation: 公开了一种使用特定负载催化剂通过直接脱氢从正丁烷制备丁烯的方法。 当将铂，钯或铂和钯作为主要催化剂的载体催化剂和铜助催化剂负载在氧化铝载体上时，用正丁烷的直接脱氢制备正丁烯，产生副产物，得到 从裂化和异构化，碳的沉积和催化剂的失活被有效地抑制，正丁烷的转化率和对正丁烯的选择性显着提高。