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为了利用棉杆皮制造工业用粗纤维及造纸原料时产生的大量废水中的提取物质,我们对这些物质进行了较系统的生长刺激试验及若干田间试验,取得了一定效果.我们按下列步骤制取样品:在废水中加酸(硫酸或盐酸)调节到pH3左右,在80℃上下保持数小时,静置沉降,滤去酸液,取得沉淀.为使样品较为干净,又发0.1NNaOH溶解并重复一次上述处理.如果在实际应用时,这种重复提净处理当然是不一定需要的,在制取方法上可以简化,要求滤去杂质,而不必去净其他离子.
In order to use cotton stalks for manufacturing industrial crude fiber and papermaking raw materials generated when a large number of wastewater extraction substances, these substances we conducted a more systematic stimulation of growth and a number of field trials, and achieved some results. We follow the following steps Take samples: acid (sulfuric acid or hydrochloric acid) in the wastewater to adjust to pH3 or so, at 80 ℃ for several hours up and down, standing settling, filtered acid to obtain precipitation.In order to make the sample is relatively clean, and 0.1NNaOH dissolved Repeat the above process.If in practical application, this repeat the net process is of course not necessary, in the preparation method can be simplified, requiring impurities to be filtered, without having to go to other net ions.