英语翻译3.2.3.Use of H3PO4together with either H2SO4or H2C2O4Tables 6 and 7 present the flotation results of East Mahamid oysterphosphate sample using H3PO4for depressing phosphate mineralsand H2SO4(Table 6) or H2C2O4(Table 7) for controlli

英语翻译3.2.3.Use of H3PO4together with either H2SO4or H2C2O4Tables 6 and 7 present the flotation results of East Mahamid oysterphosphate sample using H3PO4for depressing phosphate mineralsand H2SO4(Table 6) or H2C2O4(Table 7) for controlli
英语翻译
3.2.3.Use of H3PO4together with either H2SO4or H2C2O4
Tables 6 and 7 present the flotation results of East Mahamid oyster
phosphate sample using H3PO4for depressing phosphate minerals
and H2SO4(Table 6) or H2C2O4(Table 7) for controlling pH and for
complexing the free calcium ions.From these tables,it can be seen
that the oxalic acid,H2C2O4,is more effective in improving the
phosphate product quality (grade and recovery) than sulfuric acid.
Under approximately similar conditions [0.8 kg/ton KOl,7–8 kg/ton
H3PO4+ (H2SO4or H2C2O4),pH 5.8–6],the parameters of the
concentrate obtained using H2SO4were 49.1% weight of concentrate
and 11.0% LOI,whereas those parameters obtained when H2C2O4was
used were :55.4% weight of concentrate and 10.4% LOI,which satisfy
the expectation of the thermo-dynamic analysis.
To conclude this detailed study of East Mahamid oyster poorly
crystallized porous ore,Table 8 presents the chemical analysis of some
selected tests using particle size fractions of − 125 + 26 and − 125 +
28 µm at pH range of 5.8–6.The best concentrates obtained,as
tabulated in Table 8,are:
1- A concentrate assaying 29.1% P2O5and 10.3% LOI at P2O5recovery of
76.5% was obtained at reagent consumptions,in kg/ton,of:0.8 KOl,15.0
KH2PO4,and 5.6 H2SO4using a particle size range of −125 +26 µm.
2- A concentrate assaying 29% P2O5and 10.4% LOI at P2O5recovery of
74.1% was obtained at reagent consumptions,in kg/ton,of 0.8 KOl,
6.6 H3PO4,and 2.2 H2C2O4for a particle size range of −125 +28 µm.
Of course,the two concentrates have almost the same assay,with
the first having higher recovery.However one of the main differences
between these two tests is the amount of slimes removed (indication
of loss of phosphate minerals) where it is 12.5% in the case of the first
·································缺失一部分,不连贯
acid media is concerned due to the high dissolution of carbonates.This
was the reason for the high consumption of reagents in general,and
particularly KH2PO4when added as one dose at the beginning of the
experiments without getting satisfactory results.However the gradual
addition of reagent mixtures helped keeping the pH value under
control.Our experience with this type of ore indicates that it is very
important to keep the pH of the system around the predetermined
value of 5.8–6.As indicated earlier,particle size in its upper limit and
at the slime cut affects considerably and adversely both the
consumption of reagents and selectivity of the flotation operation.
While the reagents consumptions decrease with the increase in
particle size at the slime cut,the selectivity becomes poor beyond
certain size limit (30 µm in this case).It was not possible to obtain any
reasonable selectivity when the ground ore was deslimed at 30 µm.
请至少让句子通顺合理，翻译网页我也会，麻烦手译，

英语翻译3.2.3.Use of H3PO4together with either H2SO4or H2C2O4Tables 6 and 7 present the flotation results of East Mahamid oysterphosphate sample using H3PO4for depressing phosphate mineralsand H2SO4(Table 6) or H2C2O4(Table 7) for controlli
第3.2.3章.使用任一H2SO4or H2C2O4 H3PO4together
表6、7,呈现东Mahamid浮选结果牡蛎
使用H3PO4for沉闷的磷酸盐磷样品的矿物质
和硫酸(表6)或H2C2O4(表7)控制及酸碱度
钙离子络合自由.从这些数据表,就可以看出
那草酸,H2C2O4,能更有效地提高了
磷酸盐产品质量(品位和回收率)比硫酸.
在近相似条件下KOl[0.8公斤/吨,7 - 8公斤/吨
H2C2O4 H3PO4)+(H2SO4or、pH 5.8-6],的参数
集中使用H2SO4were 49.1%重量获得集中精力
LOI和11.0%,而这些参数时取得H2C2O4was
所采用的重量:55.4%集中和10.4%,这使人满足.意向书
所期待的热力学分析.
详细的研究,得出的结论是,这东Mahamid牡蛎较差
多孔矿石,表8结晶化学分析提出了一些
选定的试验用粒度馏分中的−−125 + 26次,125 +
28µm 5.8-6在pH值的范围.最好的集中,得到了一些有意义的
表8的表,:
1 - P2O5and 29.1%集中在大肠的P2O5recovery 10.3% LOI
试剂消耗76.5%时进行,在公斤/吨,KOl:0.8,15.0
H2SO4using KH2PO4,5.6−颗粒粒径范围125 + 26µm.
2 -一个集中在大肠P2O5recovery 29%的P2O5and 10.4% LOI
74.1%试剂消耗时进行,在公斤/吨,KOl 0.8,
H2C2O4for 6.6%,和2.2 H3PO4的颗粒粒径范围125 + 28µm−.
当然,这两个精矿有几乎相同的检测,用
第一个拥有更高的恢复.然而作为一种主要的差异
这两次测试之间的总额是泥的排除(适应症
具有生物活性的磷酸盐矿物的损失),在那里是12.5%的案件中第一个
酸介质有关由于具有较高的解散碳酸盐岩.这
的原因是高消费的试剂在总体上,然后呢
增加一款,作为一个特别KH2PO4when剂量之初
实验中还没有得到令人满意的结果.然而逐渐
除了帮助保持试剂混合物pH值的下
控制.经验告诉我们,这种类型的矿指出,它非常激动人心
重要的酸碱度系统保持在预定的
5.8-6的价值.如前面所述,在它的上限粒径和
在影响煤泥切都免产生不利的影响
消费的浮选药剂和选择性的操作.
试剂消耗量降低而增加
在煤泥粒度的降低,选择性变差超越
30µm一定规模限制(在这种情况下).它是不可能获得任何
合理的选择性,地面矿30µm deslimed.
大体这样,应该有不通顺的地方...做参考吧~