Descending aorta translocation for bronchial stenosis caused by shorter interaortic distance.

Background And Aim Of The Study: Numerous anatomic relationships of arteries could cause extrinsic compression of the trachea or bronchus. We report a rare left bronchial stenosis just caused by shorter inter-aortic distance.

Methods: One patient wih recurrent coughing and wheezing was diagnosed as left emphysema.

Efficient separation and recovery of lithium through volatilization in the recycling process of spent lithium-ion batteries.

Spent lithium-ion batteries (LIBs) comprise different kinds of valuable metals with recovery and reuse value. Aiming to address the difficulty of recycling lithium from spent LIBs through conventional pyrometallurgy, a new method of high-efficiency separation and recovery of lithium through volatilization is proposed. In this new method, spent LIBs as the raw material, copper slag as the only flux and CaCl as an additive are utilized to recover lithium from spent LIBs.