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
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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.
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页码：73 / 83
页数：11
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