1)  Hot-dip Galvanizing
无铬处理
2)  chromium-free
无铬
1.
Research & Performance Evaluation of Low Bulk Density Chromium-free Fe-series CO High Temperature Shift Catalyst;
低密度无铬铁系一氧化碳高温变换催化剂研制
2.
Study on pretreatments for chromium-free chemical conversion of AZ91D magnesium alloy;
AZ91D镁合金无铬化学转化前处理工艺研究
3.
SIMOXIDE chromium-free chemical conversion process for magnesium alloys;
SIMOXIDE镁合金无铬化学转化工艺
3)  chromate-free
无铬
1.
A conversion coating formed on magnesium alloy AM60 with a chromate-free bath mainly composed of silicate and tungstate is studied.
研究了以硅酸盐和钨酸盐为主的无铬化学处理液在镁合金上所形成的转化膜。
2.
The aluminium chromate-free phosphating has been used abroad, but it is used lessly in domestic and the rel.
铝材无铬磷化在国外已有使用,但国内厂家应用很少且国内对高性能无铬磷化的研究也鲜见报道。
4)  non-chromate
无铬
1.
Study on Non-chromate Dacromet Technology for Magnesium Alloy;
镁合金无铬达克罗工艺研究
2.
The structure of Dacromet coating is introduced,and the development & applications,anticorrosion mechanism,features in performance and environmental benefits of the non-chromate Dacromet technology are described in detail.
介绍了达克罗涂层结构,从环保的角度考虑详细阐述了无铬达克罗的开发与应用、防腐机理、性能特点、环境效益,并展望了无铬达克罗技术的发展前景。
3.
Black conversion film with non-chromate was obtained on a cast aluminum alloy by chemical methods,and the anticorrosion properties of the film were evaluated by means of dropping test.
用无铬化学方法在铸铝合金表面制得黑色转化膜,利用点滴试验评价了膜的耐蚀性能。
5)  Non-chromium
无铬
1.
Some suggestions on the research of non-chromium conversion coating technology;
无铬转化膜技术研究的几点建议
6)  chrome-free
无铬
1.
Process of chrome-free chemical conversion film on aluminum alloys;
铝合金表面无铬化学转化膜工艺研究
2.
Study of Chrome-free Chemical Conversion Film on Aluminium Alloy;
铝合金表面无铬化学转化膜的研究
3.
On impregnated preparation for chrome-free catalysts for high-temperature shift reaction;
浸渍法制备无铬CO高温变换催化剂
参考词条
补充资料：铬废水电化学处理
分子式：
分子量：
CAS号：

性质：铬酸水深液是工业中常用的氧化剂，随意排放将严重污染环境。电化学法处理的优点是规模大小适应性强、减少二次污染、便于控制和自动化。铬含量较高的废水，可采用阳极氧化Cr (Ⅲ) 至Cr (Ⅵ)回收循环使用。而铬含量较少的废水，电解法采用铁阳极，通电时铁溶解生成Fe2+（阴极产生氢和OH-），与废水中残留的CrO2-4反应，生成Fe3+和Cr3+，从而进一步反应Fe (OH)3和Cr (OH)3的共沉淀，毒性较低，可填埋处理，该法可除去废水中≤1毫克/升之铬。

说明：补充资料仅用于学习参考，请勿用于其它任何用途。