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1)  Cr-Fe tanning agent
铬铁鞣剂
2)  chrome tanning agent
铬鞣剂
1.
The Cr(Ⅵ) content in chrome tanning agents was determined by the method of alkaline digestion,which could effectively restrain the oxidation and reduction between Cr(Ⅲ)and Cr(Ⅵ).
采用碱式消解法测定铬鞣剂中的Cr(Ⅵ)含量。
2.
Using H2SO4 as acidulant,chromic sulfate with high purity was obtained by crystallization,which was applied to leather industry as chrome tanning agent.
将电镀废水中的六价铬还原成Cr(III),用化学沉淀法和絮凝法将其转化为Cr(OH)3沉淀,通过硫酸酸化,结晶为高纯硫酸铬,作为皮革工业的铬鞣剂。
3.
The chrome tanning agent was prepared with some wastewater produced from perfume factories contained high concentration organic acid as reducing agent and masking agent by which part of glucose was replaced.
利用香料厂排放的高浓度有机酸废水部分代替葡萄糖作还原剂和蒙囿剂,制备铬鞣剂,并对制备出的鞣剂的理化性能及鞣制性能,进行综合分析。
3)  chrome-free tanning agent
无铬鞣剂
1.
A series of novel chrome-free tanning agents were synthesized with erea,glyoxal,glycine and melamine.
合成了6种新型的同系列的无铬鞣剂。
2.
A series of novel chrome-free tanning agents were synthesized from urea,glyoxal,glycine and melamine.
合成了六种新型的同系列的无铬鞣剂;用红外光谱(FT-IR)分别证实了它们带有的官能团的存在;并采用氨基酸分析来初步研究这些无铬鞣剂的鞣制机理。
4)  chrome tanning auxiliary
铬鞣助剂
1.
Depending on the different characters, it can be used as the chrome tanning auxiliary and pretanning agent, and in combination with vegetable tanning agents.
根据不同的特性作为铬鞣助剂、预鞣剂以及与植物鞣剂结合鞣等用途。
5)  chrome and aluminium tanning agent
铬铝鞣剂
6)  chrome tanning
铬鞣剂
1.
The obtained chrome tanning powder can chiefly be used as first-tanning of feathers.
本文论述了利用化工厂高浓度含铬废液制备铬鞣剂,阐述了制备格鞣剂的工艺过程、调制方法,本工艺所产铬粉主要用于皮革的初鞣。
补充资料:氨基树脂复鞣剂
分子式:
CAS号:

性质:由尿素、双氰胺和三聚氰胺分别与甲醛缩合分别与甲醛缩合生成羟甲基化合物,该化合物可以与皮胶原生成共价键交联,具有鞣性,作为铬鞣革的预鞣剂,成革较丰满。这些羟甲基化合物在一定条件下可进一步缩合而成不溶于水的树脂,被阴离子分散剂分散成极细的胶态分散体。这种鞣剂没有鞣性,而有很好的填充性,又能作为复鞣剂用。脲醛树脂复鞣的革有很好的易磨革性,适用于修面革。双氰胺和三聚氰胺(蜜胺)树脂有很好的选择性填充作用,适用于松软革的填充,革的边肷部和空松部位填很多而紧实部位填很少,从而降低皮革的部位差,提高出裁率。

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