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公开(公告)号：US11242574B2
公开(公告)日：2022-02-08
申请号：US16308854
申请日：2017-06-12
Applicant: BASF SE
Inventor： Qing Shi , Laszlo Szarvas , Biyu Peng , Chunxiao Zhang
Abstract: The present invention relates to a process for producing leather in which methanesulfonic acid (MSA) is used in the pickling step at a high pH value, and the use of MSA is to improve the quality of the final leather product as well as to improve the environmental impact of the waste liquor.
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