公开(公告)号：KR1020020006947A

公开(公告)日：2002-01-26

申请号：KR1020000040535

申请日：2000-07-14

Applicant: 한국과학기술연구원

Inventor： 안병성 ,  서인석 ,  김용진 ,  박건유

IPC: C23F1/46

CPC classification number: C23F1/46

Abstract: PURPOSE: A method for efficiently injecting iron powder into the aqueous solution is provided which minimizes the amount of expensive iron powder used and maintains the proper reaction rate in removing nickel from a waste iron chloride aqueous solution containing nickel. CONSTITUTION: In removing nickel by injecting iron powder into a waste iron chloride aqueous solution containing nickel, the method for injecting the iron powder is characterized in that the iron powder having an amount determined by below mathematical equation is injected so that a nickel removal reaction rate is constantly maintained depending on the change of a nickel concentration. In the mathematical equation where W(Fe)/W(L) is an amount of iron powder injected per a unit volume of the waste iron chloride aqueous solution, R is a reaction ratio, C(Ni) is an initial concentration of nickel, t is a reaction time, and k' and b' are constants, wherein the iron powder having an amount which is calculated by the mathematical equation is injected at arbitrary time points or continuously.

Abstract translation: 目的：提供一种有效地将铁粉注入水溶液中的方法，其使得所使用的昂贵的铁粉的量最小化并保持从含镍的废铁水溶液中除去镍的适当反应速率。 构成：通过将铁粉注入到含有镍的废铁水溶液中除去镍中，注入铁粉的方法的特征在于，注入由下述数学式决定的量的铁粉，使镍去除反应率 根据镍浓度的变化不断地维持。 在其中W（Fe）/ W（L）是废铁水水溶液每单位体积注入的铁粉量的数学方程式中，R是反应比，C（Ni）是镍的初始浓度， t是反应时间，k'和b'是常数，其中通过数学方程计算的量的铁粉以任意时间点或连续地注入。

公开(公告)号：KR1020010083481A

公开(公告)日：2001-09-01

申请号：KR1020000007028

申请日：2000-02-15

Applicant: 한국과학기술연구원

Inventor： 안병성 ,  김용진 ,  서인석 ,  박건유

IPC: C23F1/46

CPC classification number: C23F1/46

Abstract: PURPOSE: A method is provided which reduces trivalent ferric chloride in an iron chloride aqueous solution to bivalent ferrous chloride hydrate in a method for efficiently recycling an etchant of a waste iron chloride aqueous solution used when etching iron, iron-nickel alloy, etc. CONSTITUTION: The continuous reduction apparatus of an iron chloride aqueous solution comprises a column reactor (1) into which a waste iron chloride aqueous solution is to be introduced and in which an iron material is filled; a stirring reactor (2) into which an iron chloride aqueous solution discharged from the column reactor (1) is to be introduced, and which comprises an LIC (level indicating controller) and an ORPAIC (oxidation reduction potential analysis indicating controller); and a circulation pump (3) for circulating the iron chloride aqueous solution of the stirring reactor (2) to the column reactor (1), wherein the LIC (level indicating controller) controls the flow rate of a waste iron chloride aqueous solution introduced to the column reactor by measuring the level of the iron chloride aqueous solution inside the stirring reactor, and the ORPAIC (oxidation reduction potential analysis indicating controller) controls the flow rate of an iron chloride aqueous solution discharged from the stirring reactor by measuring an oxidation reduction potential of the iron chloride aqueous solution inside the stirring reactor.

Abstract translation: 目的：提供一种在将铁，铁 - 镍合金等刻蚀时使用的废铁水溶液的蚀刻剂有效地回收的方法中，将氯化铁水溶液中的三价氯化铁还原成二价氯化亚铁水合物的方法。 ：氯化铁水溶液的连续还原装置包括塔式反应器（1），其中将引入废铁水溶液并填充铁材料; 将从塔式反应器（1）排出的氯化铁水溶液引入其中的搅拌反应器（2），其包括LIC（液位指示控制器）和ORPAIC（氧化还原电位分析指示控制器）; 以及用于将搅拌反应器（2）的氯化铁水溶液循环到塔式反应器（1）的循环泵（3），其中LIC（液位指示控制器）控制引入到 通过测量搅拌反应器内的氯化铁水溶液的水平，通过测量氧化还原电位，ORPAIC（氧化还原电位分析指示控制器）控制从搅拌反应器排出的氯化铁水溶液的流量 的搅拌反应器内的氯化铁水溶液。

公开(公告)号：KR100239678B1

公开(公告)日：2000-01-15

申请号：KR1019970018548

申请日：1997-05-13

Applicant: 한국과학기술연구원

Inventor： 김훈식 ,  이상득 ,  이현주 ,  서인석 ,  김용진

IPC: C07C269/04

CPC classification number: C07C269/04 ,  C07C271/24 ,  C07C271/28 ,  C07C271/36

Abstract: Cu[NCMe
4 ]X, K[CuX
2 ], [(CuX)(S)]
n (X=Cl, Br, I ; S =용매)의 구조식 (X=Cl, Br, I)을 갖는 1가의 할로겐화 구리화합물, 또는 구조식[Cu(CO)X
a L
b ]
m Y
n (X=CF
3 CO
2 , Cl, HB(pz)
3 (pz = pyrazoyl, C
3 H
3 N
2 ), LBF
2 {LBF
2 = difluoro-3,3'-(trimethylenedinitrilo)bis(2-butanone oximato)borate}; L = en, diene; Y=BPh
4 , AsF
6 ; a,b =0, 1 ; m =1-4; n=0,1)의 카르보닐기 (Cu-CO)를 갖는 1가의 구리 화합물 중에서 선택된 1종 이상의 촉매 존재 하에서 아민을 알코올 및 CO/O
2 혼합가스와 반응시키는 것으로 되는 카바메이트류의 제조방법이 제공된다.

公开(公告)号：KR1020000020218A

公开(公告)日：2000-04-15

申请号：KR1019980038729

申请日：1998-09-18

Applicant: 한국과학기술연구원

Inventor： 김훈식 ,  김용진 ,  이현주 ,  정문조 ,  이상득

IPC: C07C273/04

CPC classification number: C07C273/1809 ,  C07C2601/14 ,  C07C275/06 ,  C07C275/18 ,  C07C275/24

Abstract: PURPOSE: A preparation method of N,N-substituted urea by reacting amine with carbon monoxide and oxygen in the presence of selenium compound catalysts and alkali carbonate co catalysts is provided which can produce in high yield, increases the productivity by reducing the amount of a catalyst used and generate almost no side-products. CONSTITUTION: A method for making N,N-substituted urea of formula (I) which comprises reacting amine with a mixture of gases of CO/O2 in the presence of catalysts of one or more selenium compounds selected from SeO2, (CH3O)Se(O)(OH) and (CH3CH2O)Se(O)(OH) as a major catalyst and alkali carbonates as a co catalyst and a solvent at 80-250°C at 30-200 atm. The formula(I) is RNH-C(=O)-NHR (I) in which R is 1-18C alkyl, cyclohexyl, phenyl or benzyl. The mole number of the selenium compound to the amine and the co catalysts to the major catalysts are 1/12,800-1/200 and 0.1-10 respectively and the mole ratio of CO to O2 is 95: 5-55: 45.

Abstract translation: 目的：提供在硒化合物催化剂和碱金属碳酸盐助催化剂存在下使胺与一氧化碳和氧反应的N，N-取代的脲的制备方法，其可以高产率生产，通过减少 使用的催化剂几乎不产生副产物。 构成：制备式（I）的N，N-取代脲的方法，其包括在一种或多种选自SeO 2，（CH 3））Se的硒化合物的催化剂存在下，使胺与CO / O 2气体的混合物反应 O）（OH）和（CH 3 CH 2 O）Se（O）（OH）作为主要催化剂，碱式碳酸酯作为助催化剂，溶剂在80-250℃，30-200atm。 式（I）是其中R是1-18C烷基，环己基，苯基或苄基的RNH-C（= O）-NHR（I）。 硒化合物与胺和主要催化剂的助催化剂的摩尔数分别为1 / 12,800-1 / 200和0.1-10，CO与O 2的摩尔比为95:5-555:45。