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公开(公告)号：US3779936A
公开(公告)日：1973-12-18
申请号：US3779936D
申请日：1972-02-04
Applicant: DOW CHEMICAL CO
IPC: B01D53/26
CPC classification number: B01D53/26
Abstract: Disclosed is an improved method for the briquetting of calcium chloride. The method involves intermixing polyethylene glycol with the calcium chloride fines to be briquetted. The use of polyethylene glycol, which ranges in molecular weight from 1000 to 200,000 and is employed in an amount of from 0.1 to 10 weight percent of the calcium chloride, provides briquettes having distinct advantages over calcium chloride briquettes prepared without such an additive.
Abstract translation: 公开了一种用于压块氯化钙的改进方法。 该方法包括将聚乙二醇与要压块的氯化钙细粒混合。 使用分子量为1000至200,000，使用量为氯化钙的0.1至10重量％的聚乙二醇提供了与不加入添加剂的氯化钙团块相比具有明显优点的团块。
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公开(公告)号：US3857686A
公开(公告)日：1974-12-31
申请号：US11316471
申请日：1971-02-08
Applicant: DOW CHEMICAL CO
Abstract: The low temperature viscosity, freeze point depression and hydrocarbon hydrate formation depression characteristics of glycols are improved by replacing some of the glycol with butyrolactone. The mixture finds utility as a heat transfer medium and in natural gas processing.
Abstract translation: 通过用丁内酯代替一些二醇，提高了二元醇的低温粘度，冻点抑制和碳氢化合物形成抑制特征。 该混合物用作传热介质和天然气处理。
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公开(公告)号：US3846450A
公开(公告)日：1974-11-05
申请号：US28780172
申请日：1972-09-08
Applicant: DOW CHEMICAL CO
IPC: C07C68/08 , C07D315/00 , C07D319/06 , C07D13/04
CPC classification number: C07C68/08 , C07D315/00 , C07D319/06 , C07C69/96
Abstract: A method to remove impurities from the oxygenated organic compounds methylphenol ether, diethylcarbonate, butyrolactone and 4-methyl-1,3-dioxolan-2-one by selectively complexing the impurity with a halide of an alkaline earth metal and then removing the so-complexed impurity from the oxygenated compound.
Abstract translation: 通过选择性地使杂质与碱土金属的卤化物络合，然后除去如此复合的杂质，从含氧有机化合物甲基酚醚，二乙基碳酸酯，丁内酯和4-甲基-1,3-二氧戊环-2-酮中除去杂质的方法 来自含氧化合物的杂质。
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