通过混合用过的催化剂、金属和布朗斯台德酸以加氢混合聚合物 来对已经被所述混合聚合物失活的所述用过的酸性离子液体催化剂进 行再生。
A used acidic ionic liquid catalyst, which has been deactivated by conjunct polymers, is regenerated by combining the used catalyst, a metal and a Broensted acid to hydrogenate the conjunct polymer.
专家估计40 - 70%的住院病人在住院期间使用过抑酸药物,有一半人是第一次使用。
Experts estimate that 40 percent to 70 percent of inpatients now receive acid-suppressive drugs during a hospital stay, with about half receiving them for the first time.
用丙烯酸蔗糖酯代替价格昂贵的烯丙基蔗糖醚作为交联剂,用过硫酸钾为引发剂,在水溶液中反应制取卡波姆。
Sucrose acrylate is used as a crosslinking agent instead of the expensive sucrose ether, and potassium persulfate is used as a initiator to prepare carbomer in the water solution.
研究用过氧化苯甲酸引发丙烯酸和甲基丙烯酸接枝熔喷聚丙烯非织造布的主要影响因素。
Main factors affecting the graft modification of acrylic acid and methacrylic acid onto melt - blown polypropylene nonwovens initiated by benzoyl peroxide are studied.
生物柴油(脂肪酸酯)源于天然的、可再生的资源(如新的或用过的植物油或动物油脂),是一种比柴油更加清洁的替代品。
Biodiesel (fatty acid alkyl esters) is a cleaner burning diesel replacement fuel made from natural, renewable sources such as new and used vegetable oils and animal fats.
钒污迹也会由于在初次清洁时使用过量的酸而引起。
The problem of vanadium staining can again be caused by the use of too much acid in the original cleaning .
为了增强其应用过程中抗穿透、撕裂的能力,采用玻璃纤维或聚萘二酸乙二 醇酯或聚酰亚胺薄膜增强。
Glass fiber or polyethylene naphthalate (PEN) or polyimide film is adopted to strengthen the penetration resistance and the tear resistance in the process of application.
为了增强其应用过程中抗穿透、撕裂的能力,采用玻璃纤维或聚萘二酸乙二 醇酯或聚酰亚胺薄膜增强。
Glass fiber or polyethylene naphthalate (PEN) or polyimide film is adopted to strengthen the penetration resistance and the tear resistance in the process of application.
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