-
公开(公告)号:US4501775A
公开(公告)日:1985-02-26
申请号:US139906
申请日:1980-04-14
摘要: The strength of ice is reduced by dissolving in water prior to freezing a composition of (A) a water-soluble polyhydroxy compound or monoalkylether thereof and (B) a water-soluble organic nonvolatile compound having a hydrophilic group such as amine, carboxyl or carboxylate groups in an amount to provide an effective amount, e.g., on the order of about 0.25-5 weight percent, of (A) plus (B) based on the weight of water. The method is especially useful for application to particulate solids, such as coal and mineral ores, which are shipped and stored in masses exposed to freezing temperatures. Any ice that is formed is physically weak and will not deter the unloading of the thusly conditioned particulate solids.
摘要翻译: 在冷冻组合物(A)水溶性多羟基化合物或其单烷基醚和(B)具有亲水基团的水溶性有机非挥发性化合物如胺,羧基或羧酸酯的组合物之前,冰的溶解度降低, 基团以基于水的重量提供有效量,例如,大约0.25-5重量%的(A)加(B)。 该方法特别适用于颗粒固体,例如煤和矿石,它们以暴露于冷冻温度的块体运输和储存。 所形成的任何冰都是物理上弱的,并且不会阻止如此调节的颗粒固体的卸载。
-
公开(公告)号:US4025596A
公开(公告)日:1977-05-24
申请号:US403127
申请日:1973-10-03
CPC分类号: C10L5/10 , B01J2/28 , C09C1/58 , C09C3/045 , C01P2006/90
摘要: Finely divided mineral solids are pelletized by uniformly blending the solids with a binder consisting essentially of an aqueous film forming latex of a water insoluble polymer after which the blend is shaped and dried. The binder preferably also contains a water dispersible agglutinant, such as wheat flour or bentonite.
摘要翻译: 通过将固体与基本上由水不溶性聚合物的水性成膜胶乳组成的粘合剂均匀混合,将细碎的矿物固体颗粒化,之后将共混物成形并干燥。 粘合剂优选还含有水分散性粘结剂,例如小麦粉或膨润土。
-
公开(公告)号:US4117214A
公开(公告)日:1978-09-26
申请号:US855528
申请日:1977-11-28
摘要: The strength of ice is reduced by dissolving in water prior to freezing a composition of (A) a water-soluble polyhydroxy compound or monoalkylether thereof and (B) a water-soluble organic nonvolatile compound having a hydrophilic group such as amine, carboxyl or carboxylate groups in an amount to provide an effective amount, e.g., on the order of about 0.25-5 weight percent, of (A) plug (B) based on the weight of water. The method is especially useful for application to particulate solids, such as coal and mineral ores, which are shipped and stored in masses exposed to freezing temperatures. Any ice that is formed is physically weak and will not deter the unloading of the thusly conditioned particulate solids.
-
-