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2.Use of sulfamic acid in chlorination step of multistage bleaching process 失效
Title translation: 使用氨基磺酸在多级漂白工艺的氯化步骤中公开(公告)号:US3308012A
公开(公告)日:1967-03-07
申请号:US30317663
申请日:1963-08-19
Applicant: DU PONT
Inventor: TOBAR RAMON U
IPC: D21C9/10
CPC classification number: D21C9/1036
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