MOLTEN IRON-ASSISTED METHOD FOR PRODUCING ALUMINUM NITRIDE AND DEVICE THEREOF

專利類型

發明

專利國別 (專利申請國家)

美國

專利申請案號

14/992,101

專利證號

US 10,106,414

專利獲證名稱

MOLTEN IRON-ASSISTED METHOD FOR PRODUCING ALUMINUM NITRIDE AND DEVICE THEREOF

專利所屬機關 (申請機關)

國立清華大學

獲證日期

2018/10/23

技術說明

一種生產氮化鋁的鐵介質熔湯法及其生產設備，係於一真空密閉的環境中，連續於一純鐵熔湯中加入純鋁材料，以產生一含鋁之鐵熔湯，再於該一含鋁之鐵熔湯中，連續通入氮氣，於該一含鋁之鐵熔湯中，藉控制含鋁鐵熔湯之鋁濃度，以控制氮化鋁產出，而當含鋁之鐵熔湯中之氮化鋁持續生成後，因氮化鋁比重較鐵輕，氮化鋁會持續漂浮到含鋁之鐵熔湯表面，之後，再藉由Ar + N2氣體吹送與靜電除塵，則能夠進行收集到純的粉狀氮化鋁，最後，將用過氣體進行回收再利用。 A molten iron-assisted method for producing AlN and facility thereof are in a vacuum environment, continuously adding pure Al materials to a molten pure iron bath to form a molten Fe-Al solution, then further continuously adding N2 in the said molten Fe-Al solution to carefully control the generation of AlN by the concentration of Al in the said solution; after generating AlN, since the specific gravity of AlN is lower than that of the said solution it will continuously float to the surface of the said molten Fe-Al solution, and then use an Ar + N2 gas flow to blow the AlN on the surface of the said molten Fe-Al solution; the blown AlN particles are finally collected by an electrostatic precipitation equipment, and the used gas is thus recycled.

備註

本部(收文號1090057669)同意該校109年9月15日清智財字第1099006426號函申請終止維護專利(清華大學)

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