Study on non-ammonium salt deliming using sulfuric acid and magnesium sulfate

被引：0

作者：

Sunahara, M ^{[1
]}

Suzuki, A ^{[1
]}

机构：

[1] Tokyo Metropolitan Leather Technol Ctr, Sumida Ku, Tokyo 1310042, Japan

来源：

6TH ASIAN INTERNATIONAL CONFERENCE OF LEATHER SCIENCE AND TECHNOLOGY | 2004年

关键词：

D O I：

暂无

中图分类号：

TB3 [工程材料学]; TS1 [纺织工业、染整工业];

学科分类号：

0805 ; 080502 ; 0821 ;

摘要：

Non-ammonium salt deliming process using sulfuric acid and magnesium sulfate was investigated in order to reduce nitrogen load in waste liquors from tanneries. Using 10% magnesium sulfate and 0.15% sulfuric acid of the weight of salted pigskins, it was possible to achieve satisfactory deliming. In combination with usage of non-ammonium salt bating agent, total nitrogen in bating effluent was reduced to about 10% compared to the conventional deliming and bating method. Leathers resulting from deliming with sulfuric acid and magnesium sulfate are comparable to leathers delimed with ammonium sulfate.

引用

页码：73 / 83

页数：11

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