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经第一阶段碳酸化分解和随后的搅拌分解之后,氢氧化铝溶液便送到碳酸化分解工段的过滤机上。这时在碳酸化分解槽中剩有10米~3乳状氢氧化铝晶种。乳状氢氧化铝是流质的,从碳酸化分解槽送往过滤机的数量不够。因此一个班需要处理8～9个碳酸化分解槽。这是一项繁重的劳动作业,而且要排送大量往往是额外的母液和洗滌液。由于有一半成品氢氧化铝是在第一阶段碳酸化分解之后就提出了,因而氢氧化铝的质量下降了,只有70％的氧化铝达到一级品。在有10米~3晶种的情况下
After the first stage of carbonation decomposition and subsequent stirring decomposition, the aluminum hydroxide solution is sent to the carbonation decomposition section of the filter. At this time in the carbonation decomposition tank left 10 meters to 3 emulsion of aluminum hydroxide seeds. Milky aluminum hydroxide is liquid, from the carbonation decomposition tank sent to the filter is not enough. Therefore, a class needs to deal with 8 to 9 carbonation decomposition tank. This is a heavy labor effort and involves the delivery of large quantities of often extra mother liquor and washing liquid. Since half of the finished aluminum hydroxide is present after the first stage of carbonation, the quality of the aluminum hydroxide is reduced and only 70% of the alumina reaches the first grade. In the case of 10 meters to 3 seeds