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English Translations » 信息处理 » Process for preparing calcium sulfate whiskers from salt slu

Process for preparing calcium sulfate whiskers from salt sludge

2011-05-09View Original

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Could everyone help me check if this process is correct? Salt mud (main components are NaCl, CaCO3, Mg(OH)2). After washing with saline mud and drying it, 18% dilute hydrochloric acid is added; the filtrate is obtained by suction filtration. Then 98% concentrated sulfuric acid is added, and the filter cake obtained through suction filtration constitutes the calcium sulfate whiskers. However, the length-to-diameter ratio of the whiskers produced each time is relatively small. What processes need to be improved?
Reply #22012-12-11
It seems to lack a process for the whiskers to grow.

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Translated at 2026-07-25 04:57:59

Original: https://bbs.hcbbs.com/thread-838191-1-1.html

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