Environmental Friendly Route and Wool Shrink Proofing

The shrink proofing on wool with treatment of protease named Argaenzyme STL was studied. The various pretreating auxiliaries, different parameters for protease treating process and the effect of stabilizer were discussed in detail. The varieties of some properties before and after protease treatment were also investigated.     

M／N型负载固体碱吸附胶质性能及再生方法的考察

对碱性物质／多孔性物质（Ｍ／Ｎ型）负载固体碱吸附胶质性能及再生方法进行了试验研究。研究发现,Ｍ／Ｎ型负载固体碱对汽油胶质具有一定的吸附能力,以活化剂－汽油溶液（活化剂含量为２００μｇ／ｇ）为再生溶剂,可有效地对吸附胶质失活后的固体碱进行再生。此外,汽油固体碱预碱洗的室内试验表明,Ｍ／Ｎ型钢载固体碱预碱洗 效果良好,可使脱臭装置的使用寿命明显延长２倍以上。     

预处理气氛对CuO/CeO_2/γ-Al_2O_3催化剂表面性质及“NO+CO”反应性能的影响(英文)

用不同的预处理气氛制备了CeO2/γ-Al2O3载体以调节表面Ce的价态,并以Cu(CH3COO)2为前驱体制备了CuCeAl催化剂。XRD和H2-TPR的结果表明在还原气氛下处理的CeO2/γ-Al2O3载体具有更多的活性氧原子,因此相应的CuCeAl催化剂表面有更多分散态的Cu2+/Cu+物种。NO+CO反应的结果表明分散态的Cu2+/Cu+是NO转化的活性物质,而Cu0在低温下具有较好的N2选择性。因此,同时含有分散态Cu2+/Cu+和少量晶相Cu0的催化剂具有最好的催化性能。     

M/N型负载固体碱吸附胶质性能及再生方法的考察

对碱性物质 /多孔性物质 (M/N型 )负载固体碱吸附胶质性能及再生方法进行了试验研究。研究发现 ,M/N型负载固体碱对汽油胶质具有一定的吸附能力 ,以活化剂汽油溶液 (活化剂含量为 2 0 0 μg/ g)为再生溶剂 ,可有效地对吸附胶质失活后的固体碱进行再生。此外 ,汽油固体碱预碱洗的室内试验表明 ,M /N型负载固体碱预碱洗效果良好 ,可使脱臭装置的使用寿命明显延长 2倍以上。     

Recovery and regeneration of LiFePO4 from spent lithium-ion batteries via a novel pretreatment process

The recycling of spent LiFePO4 batteries has received extensive attention due to its environmental impact and economic benefit. In the pretreatment process of spent LiFePO4 batteries, the separation of active materials and current collectors determines the difficulty of the re-covery process and product quality. In this work, a facile and efficient pretreatment process is first proposed. After only freezing the electrode pieces and immersing them in boiling water, LiFePO4 materials were peeled from the Al foil. Then, after roasting under an inert atmosphere and sieving, all the cathode and anode active materials were easily and efficiently separated from the Al and Cu foils. The active materials were subjected to acid leaching, and the leaching solution was further used to prepare FePO4 and Li2CO3. Finally, the battery-grade FePO4 and Li2CO3 were used to re-synthesize LiFePO4/C via the carbon thermal reduction method. The discharge capacities of re-synthesized LiFePO4/C cathode were 144.2, 139.0, 133.2, 125.5, and 110.5 mA·h·g?1 at rates of 0.1, 0.5, 1, 2, and 5 C, which satisfies the requirement for middle-end LiFePO4 batteries. The whole process is environmental and has great potential for industrial-scale recycling of spent lithium-ion batteries.     

筒状棉针织物冷轧堆一步洁前处理工艺试验

本文对影响棉针织物半成品质量的因素作了分析，通过正交试验得到了筒状棉针织物冷轧堆一步法前处理的最佳工艺及处方。同时还研制出配套助剂ＣＬ－９５１。进行冷轧堆一步法前处理大生产，不仅半成品质量稳定，超过规定标准，而且与常规工艺相比，节约水５２％，节电６７％，节约蒸汽８６％，并使闲置的进口Ｃａｌａｔｏｒ冷轧堆专用设备重新启动。本研究成果现已在武汉市第一针织厂投入全面生产使用．     

预处理剂及其工业应用

本文通过预处理剂在东桐峪金矿的工业试产 (1 .5t/批 ) ,说明该预处理剂及其预处理工艺是一种适合于复杂浮选金精矿直接产金的简便方法 ,具有浸出指标高 ,工艺简单和成本低的特点 ,其生产管理的关键是控制预处理剂浓度及时间、磨矿细度和氰化钠浓度及氰化时间。图 2 ,表 4,参 2。