公开(公告)号：US20040013595A1

公开(公告)日：2004-01-22

申请号：US10620902

申请日：2003-07-16

Applicant: Korea Institute of Science and Technology

Inventor： Young-Soo Kwon ,  Hong-Gon Kim ,  Sang-Deuk Lee ,  Jae-Woo Lee ,  Jong-Yev Hong ,  Hyung-Sik Lim ,  Byoung-Sung Ahn

IPC: C01B021/083

CPC classification number: C01C1/162 ,  C01B21/0835

Abstract: Nitrogen trifluoride is produced with a high yield by the method comprising forming a fast stream of micro droplets of a fused ammonium fluoride salt by rapidly ejecting the fused ammonium fluoride salt into a reactor through a nozzle while circulating the fused ammonium fluoride salt in the reactor from a lower portion to an upper portion; and contacting micro droplets of the fused ammonium fluoride salt with fluorine gas sucked in the reactor through a suction pipe for fluorine by a negative pressure formed around the nozzle due to an ejection of the fused ammonium fluoride salt, whereby excessive generation and regional accumulation of the heat of reaction are prevented, reducing the reaction temperature by 10null30null C. compared with those of the existing methods, and a side reaction occurs only to a slight extent according to the lowered reaction temperature.

Abstract translation: 通过以下方法制备三氟化氮，该方法包括通过将熔融氟化铵盐快速喷射到反应器中，同时使熔融氟化铵盐在反应器中循环而形成快速的熔融氟化铵盐的微滴流 下部到上部; 并且由于熔融氟化铵铵的喷射，熔融氟化铵盐的微滴与吸附在反应器中的氟气通过由喷嘴形成的负压而通过氟吸附管接触，由此过度产生和区域积累 防止反应热，与现有方法相比，将反应温度降低10〜30℃，根据降低的反应温度仅发生副反应的轻微反应。

公开(公告)号：US20030001132A1

公开(公告)日：2003-01-02

申请号：US10076725

申请日：2002-02-13

Applicant: Korea Institute of Science and Technology

Inventor： Byung-Gwon Lee ,  Jong-Sung Lim ,  Hong-Gon Kim ,  Chang-Nyeon Kim

IPC: F25D001/00 ,  C09K005/00

CPC classification number: C09K5/045 ,  C09K2205/12 ,  C09K2205/43

Abstract: The present invention relates to a refrigerant composition of four-constituent system, comprising: (a) a first constituent of difluoromethane, (b) a second constituent of 1,1,1,2,3,3,3-heptafluoropropane, (c) a third constituent selected from the group consisting of 1,1,1,2-tetrafluoroethane and 1,1-difluoroethane and (d) a for the constituent selected from the group consisting of isobutane, 1,1,1,2,3,3,-hexafluoropropane and butane, useful as a substitute for chlorodifluoromethane (HCFC-22).

Abstract translation: 本发明涉及四组分体系的制冷剂组合物，其包含：（a）二氟甲烷的第一组分，（b）1,1,1,2,3,3,3-七氟丙烷的第二组分，（c ）选自由1,1,1,2-四氟乙烷和1,1-二氟乙烷组成的组的第三组分和（d）a选自异丁烷，1,1,1,2,3 ，3,6-六氟丙烷和丁烷，可用作氯代二氟甲烷（HCFC-22）的替代物。