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yyb2008: ½ð±Ò+30, ·­ÒëEPI+1, ¡ï¡ï¡ï¡ï¡ï×î¼Ñ´ð°¸, лл 2015-08-04 17:14:24
±¾ÎÄ Í¨¹ý ¶Ô ¶àÔªº¬Îý ÎïÁÏ ÖÐµÄ SO42-¡¢AsÒÔ¼°Fe µÈ ÔÓÖÊÀë×Ó µÄÈ¥³ý ½øÐÐÁË Ñо¿£¬²ÉÈ¡ ¸ßμîÈÚ·¨£¬ÒÀ´Î ͨ¹ý ÎýËáÄÆ ÖÆ´Ö¡¢½þ³ö¡¢Å¨Ëõ¡¢ºæ¸É¡¢·ÛËé µÈ¹¤Ðò À´ÖƱ¸ ¸ß´¿ÎýËáÄÆ¡£ÖصãÑо¿ SO42-¡¢As¡¢FeµÈ ÔÓÖÊÀë×ÓµÄ È¥³ýÂÊ ÒÔ¼° ±ºÉÕÎÂ¶È ºÍ ʱ¼ä ¶Ô Îý½þ³öÂÊ µÄÓ°Ï죬³É¹¦ ÑÐÖÆ³ö Ò»ÖÖ ¸ß´¿ ÎýËáÄÆµÄ Éú²ú¹¤ÒÕ¡£
In this paper, we researched the method of removing foreign ions such as SO42-, As and Fe in multiple Tin-bearing material. By employing the high temperature alkali melt method, we made an attempt to prepare the high purity sodium stannate by successively conducting experimental processes like coarse product preparation, extraction,concentration, drying and crushing. Focusing on the ratio in removing foreign ions such as SO42-, As and Fe as well as on the influence of reaction time and temperature on the Tin leaching efficiency, we successfully designed a production technology for high purity sodium stannate.
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