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method for uniform reduction of the wasserrückhaltevermögens a glashüttensandes
method for uniform reduction of the wasserrückhaltevermögens a glashüttensandes
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机译:均匀地减少废纸的方法
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摘要
The water retention capacity of sand is uniformly reduced by adding 5% of a surfactant per tonne of sand. The surfactant is pref. employed when the sand contains 20-35% water; and a biologically degradable surfactant is pref. used, esp. a surfactant with min. 80% degradability. Excessive water contents in sand seriously interfere with glass mfg. processes. Storage or drying employed to reduce the moisture content is inconvenient and/or expensive. Provides an inexpensive method of water removal.
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