公开(公告)号：US3718736A

公开(公告)日：1973-02-27

申请号：US3718736D

申请日：1971-09-20

Applicant: ALLIED CHEM

Inventor： WATSON W ,  TROEGER R

IPC: C01B7/19 ,  C01B7/22 ,  C01F11/46

CPC classification number: C01B7/192

Abstract: Hydrogen fluoride is produced continuously by reacting calcium fluoride (fluorspar) and sulfuric acid, at temperatures between about 250* and 600*F. in the presence of more than 3 parts calcium sulfate per part of by-product calcium sulfate produced from said reaction.

Abstract translation: 氟化氢（氟石）和硫酸在大约250°至600°F之间的温度下，在每次由所述反应产生的副产物硫酸钙的3份以上的硫酸钙存在下，连续生产氟化氢。