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公开(公告)号：US5211852A
公开(公告)日：1993-05-18
申请号：US812801
申请日：1991-12-23
CPC分类号： C02F1/64 , C02F1/281 , Y10S210/912 , Y10S210/913
摘要： Provided is a process for the removal of metal ions from water which comprises filtering the water through a bed or layer of granular lightburned or hardburned magnesium oxide. The use of granular hardburned or granular lightburned grades of the magnesium oxide provides one with a most effective process for the removal of metal ions, as well as a process which permits a greater throughput of water before the effectiveness of the magnesium oxide decreases substantially.The process of the present invention also involves an acidic backwash to regenerate the granular magnesium oxide. The acidic backwash is used to strip the captured metal ions from the surface of the granules, and has been found to be quite effective. The acid is generally a dilute acid, e.g., about 1 to 10 percent by weight acid concentration.
摘要翻译： 提供了一种从水中除去金属离子的方法，其中包括通过床或层状的颗粒状灼烧或硬化的氧化镁过滤水分。 使用颗粒状硬化或颗粒状的烧结级别的氧化镁提供了一种除去金属离子最有效的方法，以及在氧化镁的有效性显着降低之前允许更大的水通量的方法。 本发明的方法还涉及酸性反洗以再生颗粒状氧化镁。 酸性反冲洗用于从颗粒表面剥离所捕获的金属离子，并且已经被发现是非常有效的。 酸通常是稀酸，例如约1至10重量％的酸浓度。
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公开(公告)号：US5192337A
公开(公告)日：1993-03-09
申请号：US727776
申请日：1991-07-10
申请人： Mark T. Wajer , David M. Smith , Vernon D. Miles
发明人： Mark T. Wajer , David M. Smith , Vernon D. Miles
IPC分类号： C10L10/02
CPC分类号： C10L10/02
摘要： Compositions and methods are provided for controlling dust production from coal, for controlling dust losses from coal, for reducing decrepitation, and for facilitating cold-weather handling of coal. The compositions comprise blending oil and petroleum resin where the blending oil can comprise reclaimed motor oil, light or heavy oil obtained from the refining of petroleum crude, virgin or reprocessed vegetable or animal oils, or oils of mineral origin, and where the petroleum resin comprises resin obtained from the deresination of cylinder stocks or cylinder stock itself, or a combination thereof. The petroleum resin may also contain optional ingredients such as diesels and/or bright stock for motor oils to reduce viscosity.
摘要翻译： 提供了组合和方法，用于控制煤的粉尘产生，用于控制煤的灰尘损失，减少爆裂，促进煤的冷天气处理。 组合物包括混合油和石油树脂，其中混合油可以包括回收的机油，从石油原油，未处理的或再加工的植物或动物油的精炼或矿物来源的油获得的轻质或重质油，并且其中石油树脂包含 从汽缸原料或汽缸原料本身脱离得到的树脂，或其组合。 石油树脂还可以含有任选成分，例如用于机油的柴油机和/或光亮油，以降低粘度。
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公开(公告)号：US4458034A
公开(公告)日：1984-07-03
申请号：US413699
申请日：1982-09-01
CPC分类号： C08G18/6484
摘要： Flame retardant, char-forming, flexible polyurethane foams are described which include, in addition to suitable diisocyanates and other basic foam-forming components, a flame retardant material and a polyol which has substantially non-reactive hydroxyl groups with respect to the diisocyanate component under the conditions of the foam-forming reaction. Accordingly, the polyol remains in the finished polyurethane foam substantially unreacted. When the finished foam product is subjected to combustion conditions the flame retardant material and unreacted polyol combine to retard flame formation and to provide a dripless char. In addition to the flame retardant and char-forming characteristics, the flexible polyurethane foam is firm, permitting the manufacture of clickable foams.
摘要翻译： 描述了阻燃，成型，柔性聚氨酯泡沫，除了合适的二异氰酸酯和其它基本的泡沫形成组分之外，还包括阻燃材料和多元醇，其相对于二异氰酸酯组分具有基本上非反应性的羟基 泡沫形成反应的条件。 因此，多元醇保留在成品聚氨酯泡沫体中基本上未反应。 当完成的泡沫产品经受燃烧条件时，阻燃材料和未反应的多元醇结合以阻止火焰形成并提供无滴漏的炭。 除了阻燃和成型特性外，柔性聚氨酯泡沫塑料坚固，允许制造可点击的泡沫。
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4.发明授权Process employing magnesium hydroxide in peroxide bleaching of mechanical pulp 有权使用氢氧化镁在机械纸浆的过氧化物漂白中的工艺公开(公告)号：US07052578B2
公开(公告)日：2006-05-30
申请号：US09769761
申请日：2001-01-26
申请人： Mark T. Wajer , Aileen R. Gibson , Joseph Genco , Donna Johnson , Burton Branch
发明人： Mark T. Wajer , Aileen R. Gibson , Joseph Genco , Donna Johnson , Burton Branch
IPC分类号： D21C9/16
CPC分类号： D21C9/1036 , D21C9/163
摘要： Wood pulp is bleached using hydrogen peroxide as the oxidative bleaching agent in the presence of magnesium hydroxide or magnesium oxide. The bleaching process is carried out in the presence of magnesium hydroxide as the predominant, and preferably essential, source of alkali. The process optionally includes transition metal chelants, such as DTPA or EDTA in the bleaching slurry. The process eliminates the need for added caustic and silicate in such systems and can be carried out at or near neutral pH of 5.0 to 8.5.
摘要翻译： 在氢氧化镁或氧化镁存在下，使用过氧化氢作为氧化漂白剂将木浆漂白。 漂白过程是在氢氧化镁作为主要的，优选必需的碱源的情况下进行的。 该方法任选地包括过渡金属螯合剂，例如漂白浆液中的DTPA或EDTA。 该方法消除了在这种体系中添加苛性碱和硅酸盐的需要，并且可以在5.0至8.5的中性pH附近进行。
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5.发明授权Stabilized, pressure-hydrated magnesium hydroxide slurry from burnt magnesite and process for its production 失效来自烧焦菱镁矿的稳定的，压力水合的氢氧化镁浆料及其生产方法
公开(公告)号：US5487879A
公开(公告)日：1996-01-30
申请号：US275473
申请日：1994-07-15
CPC分类号： C01F5/16 , C01P2006/22
摘要： A stabilized, pressure-hydrated magnesium hydroxide slurry and a process for its production from burnt magnesite are described. According to an embodiment of the invention, a mixture comprising burnt natural magnesite and water is pressure hydrated to provide a pressure hydrated slurry. The pressure hydrated slurry is then deagglomerated. If desired, chloride ions and cationic polymer can be added to further stabilize the slurry.
摘要翻译： 描述了稳定的，压力水合的氢氧化镁浆料及其由烧焦菱镁矿生产的方法。 根据本发明的一个实施方案，包含燃烧的天然菱镁矿和水的混合物被压力水合以提供压力水合浆料。 然后将压力水合浆料解聚。 如果需要，可以加入氯离子和阳离子聚合物以进一步稳定浆料。
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6.发明授权Flexible polyurethane foams having low resistance to air flow and method for preparation 失效柔性聚氨酯泡沫具有低的气流阻力和制备方法
公开(公告)号：US4167612A
公开(公告)日：1979-09-11
申请号：US916745
申请日：1978-06-19
CPC分类号： C08G18/6558 , C08G18/4072 , C08G18/632 , C08G2101/0008 , C08G2101/0083 , C08G2340/00 , Y10S521/914
摘要： Flexible polyurethane foams having low resistance to air flow and, in addition, having good load bearing characteristics and high strength comprising the reaction product of polyisocyanate, a polyol blend including about 40-60 percent by weight of a polyether triol having an average molecular weight of about 4500-6500 and about 60-40 percent by weight of a reinforced polymer polyol having an average molecular weight of about 4500-5500 for the base polyol, and a low molecular weight cross-linking agent, such as 1,4-cyclohexanedimethanol or 4,4' methylene-bis (2-chloroaniline). Preferably the air flow characteristics are improved by crushing the reaction product before it is fully cured.
摘要翻译： 具有低的空气流动阻力的柔性聚氨酯泡沫，另外具有良好的承载特性和高强度，包括多异氰酸酯的反应产物，多元醇共混物包括约40-60重量％的平均分子量为 约4500-6500和约60-40重量％的用于基础多元醇的平均分子量为约4500-5500的增强聚合物多元醇和低分子量交联剂，例如1,4-环己烷二甲醇或 4,4'亚甲基 - 双（2-氯苯胺）。 优选地，通过在反应产物完全固化之前粉碎反应产物来改善气流特性。
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