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Antimicrobial lubricant compositions are disclosed. The antimicrobial lubricant compositions are particularly useful in providing antimicrobial capability to a wide-range of medical devices. The compositions include an oil lubricant. Representative lubricants may include polydimethyl siloxane, trifluoropropyl copolymer polysiloxane, and a copolymer of dimethylsiloxane and trifluoropropylmethylsiloxane. The compositions include rheology modifiers as necessary. The compositions also include antimicrobial agents, which may be selected from a wide array of agents. Representative antimicrobial agents include of aldehydes, anilides, biguanides, bis-phenols, quaternary ammonium compounds, cetyl pyridium chloride, cetrimide, alexidine, chlorhexidine diacetate, benzalkonium chloride, and o-phthalaldehyde.

The present disclosure concerns a reactor system (10) designed for the conversion of hydrogen to ammonia and vice versa. The reactor system (10) is capable of operating two distinct chemical reactions under separate sets of operating conditions. The first reaction involves synthesizing ammonia from a mixture of hydrogen and nitrogen under a first set of operating conditions that favor ammonia synthesis. These conditions encompass a specific range of temperature, of pressure and of residence time. The second reaction entails cracking ammonia to produce hydrogen and nitrogen under a second set of operating conditions that favor ammonia cracking. The pressure values in the second set of conditions are lower than those in the first set. The reactor system (10) can include devices such as heating means, an ammonia storage structure (16), and various other components designed to optimize the process of ammonia synthesis and cracking.

Process and plant for the production of ammonia and urea which use as feedstock a gaseous mixture deriving from various industrial processes, in particular metallurgical iron ore reduction processes. The process produces a loop that uses the short contact time catalytic partial oxidation (SCT-CPO) reaction to convert purge gases of the ammonia synthesis to synthesis gas which is combined with the feedstock to be treated. The oxygen for the partial oxidation reaction is obtained by electrolysis of water or through air separation. The CO2 contained in the feedstock and/or emitted in the process steps is used for the production of urea.

The invention refers to a process for obtaining iodide from solution comprising low amounts of iodine-containing aromatic compound, such as of non-ionic X-ray contrast agents, comprising the steps of contacting the solution comprising low amounts of iodine-containing aromatic compound with activated carbon to adsorb the iodine-containing aromatic compound comprised therein onto the activated carbon; and de-iodinating the iodine-containing aromatic compounds adsorbed onto the activated carbon.

A process (100) for producing a hydrogen product (20) from a feedstock stream (10), the process (100) comprising the following steps:- performing a combustion of a fuel gas (S11) to bring a heat input to the process (100) thereby generating a flue gas (52),- pre-heating the ammonia stream (S3), said preheating being realized in a first heat exchanger (4) arranged to heat the ammonia stream by heat exchange with the flue gas,- sending the pre-heated ammonia stream (12) to a vaporizer (5) and vaporizing (S4) said pre-heated ammonia stream,- sending the vaporized ammonia (14) from said vaporizer (5) as said feedstock stream (S6) and/or sending the vaporized ammonia from said vaporizer as said fuel to said combustion (S11).

本发明提供了一种钛基AB2型储氢材料及其制备方法、应用，涉及储氢材料的技术领域，该钛基AB2型储氢材料具有如下化学表达式：Ti1‑a‑b‑cZraHfbCr0.8Mn1.1Fe0.1Cec；其中，0.08≤a≤0.15，0.03≤b≤0.08，0.01≤c≤0.03。本发明储氢材料不仅低温活化效率高，在室温、3MPa氢压下，首次充氢5min内达到饱和容量的95.75%，饱和储氢容量≥1.88wt%，在‑10℃、0MPa下，放氢容量≥1.75wt%，而且双相协同稳定，双相比例长期保持稳定，经50次循环后相结构无明显变化，容量保持率≥97%，平台滞后≤0.25MPa，同时工艺简单，适合规模化生产，成本优势高。

本发明提供一种双氧水生产中氧化残液的回收利用方法，属于双氧水生产技术领域，包括：1）将氧化塔上塔的氧化残液收集至上塔残液储槽中，定期将其返送进氧化塔的下塔参与氢化液的氧化反应；2）将氧化塔下塔的氧化残液收集至下塔残液储槽中，定期取样检测，并根据检测结果进行分类回收，若样品指标符合回收标准，则将氧化残液排入氧化液槽中；若样品指标不符合回收标准，则将氧化残液排入酸性污水槽。本发明中将氧化塔上塔和下塔部分的氧化残液进行了分级分类回收，降低了氧化残液的排污量，有利于提高氧化残液回收的效率和安全性能，降低回收成本，还能降低污水处理难度和处理成本，提高双氧水产品的收率和产量，节约了双氧水的生产成本。

本发明公开了一种有机酸体系下半水磷石膏制备高纯度二水石膏的方法，属于磷石膏综合利用技术领域。该方法先配制有机酸溶液并升温，再将有机酸溶液与半水磷石膏干基与清水按比例混合，恒温进行水化重结晶反应，随后加入适量浓度的硫酸养晶改性，最后经过滤、洗涤处理，有机酸液全程闭路循环回用，烘干滤饼制得高纯度二水石膏。本发明解决了现有无机酸改性工艺磷氟杂质脱除不彻底、难溶性杂质残留高、资源回收率低、成品性能差的问题，可有效破除杂质包裹效应，深度脱除磷氟杂质。本发明工艺条件温和、绿色循环、可规模化生产，显著提升二水石膏纯度与磷氟回收率，实现半水磷石膏高值化资源化利用。

本发明涉及碳化硅微粉的除杂提纯和回收利用技术领域，公开了一种低磁性杂质碳化硅微粉及其制备方法与应用，通过将含有磁性杂质的碳化硅原料制成原料浆，经第一次磁选得到主体料浆和磁性富集浆；对所述磁性富集浆进行浓缩，并加入过氧化氢进行解附处理，利用磁性杂质促进过氧化氢分解产生的界面扰动作用，使附着或夹带的碳化硅颗粒释放；随后对解附后的料浆进行第二次磁选，并在保持磁场条件下对磁性介质进行冲洗，回收其中滞留的碳化硅颗粒；将主体料浆、二次磁选流出浆和洗出浆合并后，经粒径分级、洗涤、固液分离、干燥及筛分，得到低磁性杂质碳化硅微粉，本发明所得碳化硅微粉可用于精密研磨、陶瓷材料及复合材料等领域。