公开(公告)号：KR100417059B1

公开(公告)日：2004-02-05

申请号：KR1020010022578

申请日：2001-04-26

Applicant: 한국화학연구원

Inventor： 이정민 ,  김광주 ,  김철웅 ,  김범식 ,  김재경 ,  이혜종

IPC: C08J11/02

Abstract: PURPOSE: Provided is a method for crystallizing polyethylene wax and fractionating the wax according to average molecular weight with narrow molecular weight distribution, so as to purify the wax in high purity. CONSTITUTION: The method comprises the steps of (i) mixing a crystallizing solvent having concentration of 1-95% and a raw material in a crystallizer(S1); (ii) elevating temperature of the mixture so as to liquidize the raw material(S2); (iii) cooling temperature of the mixture at supercooling temperature of 30-110 deg.C and cooling velocity of 0.1-10 deg.C/minute(S3); crystallizing the cooled raw material(S4); and filtrating the crystallized material(S5). The crystallizing solvent is selected from the group consisting of saturated hydrocarbon, ketone, monocyclic aromatic hydrocarbon, polycyclic aromatic hydrocarbon, olefinic hydrocarbon, and mixture thereof.

Abstract translation: 用途：提供一种使聚乙烯蜡结晶并按照平均分子量分级并且分子量分布窄的方法，从而以高纯度纯化蜡的方法。 组成：该方法包括以下步骤：（i）在结晶器（S1）中混合浓度为1-95％的结晶溶剂和原料; （ii）升高混合物的温度以便使原料（S2）液化; （iii）在30-110℃的过冷温度和0.1-10℃/分钟的冷却速度下混合物的冷却温度（S3）; 结晶冷却的原料（S4）; 并过滤结晶材料（S5）。 结晶溶剂选自饱和烃，酮，单环芳烃，多环芳烃，烯烃和它们的混合物。

公开(公告)号：KR1020020083226A

公开(公告)日：2002-11-02

申请号：KR1020010022578

申请日：2001-04-26

Applicant: 한국화학연구원

Inventor： 이정민 ,  김광주 ,  김철웅 ,  김범식 ,  김재경 ,  이혜종

IPC: C08J11/02

Abstract: PURPOSE: Provided is a method for crystallizing polyethylene wax and fractionating the wax according to average molecular weight with narrow molecular weight distribution, so as to purify the wax in high purity. CONSTITUTION: The method comprises the steps of (i) mixing a crystallizing solvent having concentration of 1-95% and a raw material in a crystallizer(S1); (ii) elevating temperature of the mixture so as to liquidize the raw material(S2); (iii) cooling temperature of the mixture at supercooling temperature of 30-110 deg.C and cooling velocity of 0.1-10 deg.C/minute(S3); crystallizing the cooled raw material(S4); and filtrating the crystallized material(S5). The crystallizing solvent is selected from the group consisting of saturated hydrocarbon, ketone, monocyclic aromatic hydrocarbon, polycyclic aromatic hydrocarbon, olefinic hydrocarbon, and mixture thereof.

Abstract translation: 目的：提供聚乙烯蜡结晶方法，按照分子量分布窄的平均分子量对蜡进行分馏，以纯化蜡。 方法：该方法包括以下步骤：（1）在结晶器中混合浓度为1-95％的结晶溶剂和原料（S1）; （ii）提高混合物的温度以使原料液化（S2）; （iii）过冷却温度为30-110℃，冷却速度为0.1-10℃/分钟的混合物的冷却温度（S3）; 使冷却的原料结晶（S4）; 并过滤结晶物（S5）。 结晶溶剂选自饱和烃，酮，单环芳烃，多环芳烃，烯烃，及其混合物。