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公开(公告)号：KR1020030042108A
公开(公告)日：2003-05-28
申请号：KR1020010072627
申请日：2001-11-21
Applicant: 한국화학연구원
IPC: C30B29/14
CPC classification number: C01B25/234 , C30B29/14
Abstract: PURPOSE: A method for obtaining high purity phosphoric acid crystal to the maximum yield by efficiently removing about 24 types of heavy metal remained in phosphoric acid as impurities, and an apparatus for manufacturing the high purity phosphoric acid crystal are provided. CONSTITUTION: The apparatus comprises a crystal manufacturing unit (10) comprising a raw material phosphoric acid tank (11) for supplying phosphoric acid, and a crystallization tank (14) on the outer part of which a jacket (12) is formed, and in which a scraper (13) is installed so that an internal temperature is maintained to -70 to -30 deg.C using refrigerant circulating the external jacket (12), and phosphoric acid seed crystal is continuously manufactured by scraping crystal on the wall surface of the crystallization tank (14) using the scraper (13); a crystal aging unit (20) comprising refrigerant circulator (21) and temperature sensor (22) for temperature controlling, and an aging tank (24) in which a propeller impeller (23) is installed, and which receives phosphoric acid crystal so that the phosphoric acid crystal is aged for 10 to 40 minutes by cooling it to a temperature of 4 to 20 deg.C; and a crystal purifying unit (30) comprising a purifying tank (33) comprising a jacket (31) installed on the outer part of the purifying tank (33) to maintain temperature and a heater (32) installed inside the purifying tank (33) to melt crystal so that some of the crystal grains are refluxed while some of the crystal grains are taken as product by melting crystal grains precipitated into the bottom by gravity of the crystal grains.
Abstract translation: 目的：通过有效地除去作为杂质的磷酸中残留的约24种重金属，获得高纯度磷酸结晶的方法，提供高纯度磷酸晶体的制造装置。 构成：该装置包括晶体制造单元（10），该晶体制造单元包括用于供给磷酸的原料磷酸槽（11）和在其外部形成有外壳（12）的结晶槽（14），并且 其中安装有刮刀（13），使得内部温度保持在-70至-30℃，使用循环外壳（12）的制冷剂，并且磷酸晶种通过在 使用刮刀（13）的结晶槽（14）; 包括用于温度控制的制冷剂循环器（21）和温度传感器（22）的晶体老化单元（20）和安装螺旋桨叶轮（23）的老化箱（24），并且接收磷酸晶体， 通过将磷酸晶体冷却至4〜20℃的温度而老化10〜40分钟; 以及包括净化罐（33）的晶体净化单元（30），所述净化槽包括安装在所述净化罐（33）的外部以保持温度的护套（31）和安装在所述净化槽（33）内的加热器（32） 熔化晶体，使得一些晶粒回流，同时通过将通过晶粒重力沉淀到底部的晶粒熔化而将一些晶粒作为产物而被回收。
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Patent Agency Ranking
公开(公告)号：KR1020020091955A
公开(公告)日：2002-12-11
申请号：KR1020010030779
申请日：2001-06-01
Applicant: 한국화학연구원
IPC: C10G73/44
Abstract: PURPOSE: Provided are a purification method and an equipment for polyethylene wax which is useful as a coloring agent and an lubricant. CONSTITUTION: The purification method of lower polyethylene wax generated form the polymerization of polyethylene slurry, by crystallization comprises the steps of: inserting lower polyethylene wax into a crystallizer; heating the lower polyethylene wax in the crystallizer up; cooling it to crystalize the inside of the crystallizer; melting produced crystals at 80-140 deg. C; and obtaining high purity of crystals therefrom.
Abstract translation: 目的：提供可用作着色剂和润滑剂的聚乙烯蜡的净化方法和设备。 构成：通过结晶聚乙烯浆料聚合生成的低聚乙烯蜡的纯化方法包括以下步骤：将低聚乙烯蜡插入结晶器中; 加热结晶器中的下聚乙烯蜡; 冷却结晶器结晶器内部; 熔化产生的晶体在80-140度。 C; 并从中获得高纯度的晶体。
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公开(公告)号：KR100593833B1
公开(公告)日：2006-06-28
申请号：KR1020040031870
申请日：2004-05-06
Applicant: 한국화학연구원
IPC: C09K13/06
Abstract: 본 발명은 반도체 폐에칭액으로부터 초고순도 인산의 분리ㆍ회수방법에 관한 것으로서, 더욱 상세하게는 반도체 에칭공정에서 배출되는 폐에칭액을 재활용하는 방법으로서, 실리콘 웨이퍼의 질화규소막(Si
3 N
4 )에칭공정에서 배출되는 폐에칭액으로부터 첨가제나 용매의 첨가 없이 경막 용융 결정화 과정을 수행함으로써 초고순도 인산을 각각 분리ㆍ회수하는 방법에 관한 것이다.
반도체 폐에칭액, 인산, 질화규소막, 경막 용융 결정화Abstract translation: 本发明涉及一种从半导体废弃蚀刻溶液中分离回收超纯磷酸的方法，更具体地涉及一种对从半导体蚀刻过程中排出的废蚀刻溶液进行再循环的方法，
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公开(公告)号：KR100447941B1
公开(公告)日：2004-09-08
申请号：KR1020010072627
申请日：2001-11-21
Applicant: 한국화학연구원
IPC: C30B29/14
Abstract: PURPOSE: A method for obtaining high purity phosphoric acid crystal to the maximum yield by efficiently removing about 24 types of heavy metal remained in phosphoric acid as impurities, and an apparatus for manufacturing the high purity phosphoric acid crystal are provided. CONSTITUTION: The apparatus comprises a crystal manufacturing unit (10) comprising a raw material phosphoric acid tank (11) for supplying phosphoric acid, and a crystallization tank (14) on the outer part of which a jacket (12) is formed, and in which a scraper (13) is installed so that an internal temperature is maintained to -70 to -30 deg.C using refrigerant circulating the external jacket (12), and phosphoric acid seed crystal is continuously manufactured by scraping crystal on the wall surface of the crystallization tank (14) using the scraper (13); a crystal aging unit (20) comprising refrigerant circulator (21) and temperature sensor (22) for temperature controlling, and an aging tank (24) in which a propeller impeller (23) is installed, and which receives phosphoric acid crystal so that the phosphoric acid crystal is aged for 10 to 40 minutes by cooling it to a temperature of 4 to 20 deg.C; and a crystal purifying unit (30) comprising a purifying tank (33) comprising a jacket (31) installed on the outer part of the purifying tank (33) to maintain temperature and a heater (32) installed inside the purifying tank (33) to melt crystal so that some of the crystal grains are refluxed while some of the crystal grains are taken as product by melting crystal grains precipitated into the bottom by gravity of the crystal grains.
Abstract translation: 目的：提供一种通过有效地除去作为杂质残留在磷酸中的约24种重金属以获得最高产率的高纯度磷酸晶体的方法以及一种用于制造高纯度磷酸晶体的设备。 本发明的装置包括：晶体制造单元（10），其包括用于供应磷酸的原料磷酸罐（11）和结晶罐（14），结晶罐的外部形成有夹套（12），并且在结晶罐 其中安装刮板（13），使得利用循环外部夹套（12）的制冷剂将内部温度保持在-70至-30℃，并且通过刮擦壁表面上的晶体连续制造磷酸晶种 使用刮刀（13）的结晶罐（14）; 包括用于温度控制的制冷剂循环器（21）和温度传感器（22）的晶体老化单元（20）以及其中安装有螺旋桨叶轮（23）的老化箱（24），并且其接收磷酸晶体， 通过将磷酸晶体冷却至4至20℃的温度来熟化10至40分钟; 和包括净化罐（33）的晶体净化单元（30），所述净化罐包括安装在净化罐（33）的外部以保持温度的外壳（31）和安装在净化罐（33）内的加热器（32） 通过晶粒的重力熔化结晶，使一些晶粒回流，同时使一些晶粒作为产物被熔化，从而通过熔化沉淀到底部的晶粒。
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公开(公告)号：KR1020050106825A
公开(公告)日：2005-11-11
申请号：KR1020040031870
申请日：2004-05-06
Applicant: 한국화학연구원
IPC: C09K13/06
Abstract: 본 발명은 반도체 폐에칭액으로부터 초고순도 인산의 분리ㆍ회수방법에 관한 것으로서, 더욱 상세하게는 반도체 에칭공정에서 배출되는 폐에칭액을 재활용하는 방법으로서, 실리콘 웨이퍼의 질화규소막(Si
3 N
4 )에칭공정에서 배출되는 폐에칭액으로부터 첨가제나 용매의 첨가 없이 경막 용융 결정화 과정을 수행함으로써 초고순도 인산을 각각 분리ㆍ회수하는 방법에 관한 것이다.-
公开(公告)号：KR1020030075072A
公开(公告)日：2003-09-22
申请号：KR1020020014175
申请日：2002-03-15
Applicant: 한국화학연구원
IPC: C08F2/28
Abstract: PURPOSE: Provided is a method for producing spherical polyethylene powder which excludes the need for production of a polymerization catalyst, and simplifies the processing steps to save the costs and to improve the productivity. CONSTITUTION: The method for producing spherical polyethylene powder comprises the steps of: (a) dissolving a polyethylene into a good solvent to form a transparent and homogeneous solution; (b) heating a non-solvent which cannot dissolve polyethylene in a separate container at a temperature higher than the melting temperature of polyethylene; (c) mixing the homogeneous solution of the step (a) with the heated non-solvent of the step (b); (d) cooling the mixture to a temperature lower than the crystallization temperature of polyethylene to form an emulsion; and (e) separating and filtering the emulsion, removing the remaining good solvent and non-solvent with a washing solvent and then drying. The apparatus for producing spherical polyethylene powder comprises the means(1) for dissolving the polyethylene into the good solvent; a means(2) for heating the non-solvent; an agitated crystallizing device(3) for mixing the good solvent with the non-solvent; a filter(4) for recovering spherical polyethylene particles; and a separator(5) for recycling the remaining polyethylene.
Abstract translation: 目的：提供一种不需要生产聚合催化剂的球形聚乙烯粉末的制造方法，并且简化了节省成本并提高生产率的加工步骤。 构成：球形聚乙烯粉末的制造方法包括以下步骤：（a）将聚乙烯溶解在良溶剂中以形成透明且均匀的溶液; （b）在高于聚乙烯的熔融温度的温度下加热不溶于聚乙烯的非溶剂; （c）将步骤（a）的均匀溶液与步骤（b）的加热非溶剂混合; （d）将混合物冷却到低于聚乙烯的结晶温度的温度以形成乳液; 和（e）分离和过滤乳液，用洗涤溶剂除去剩余的良溶剂和非溶剂，然后干燥。 用于制备球形聚乙烯粉末的装置包括用于将聚乙烯溶解到良溶剂中的装置（1） 用于加热非溶剂的装置（2）; 用于将良溶剂与非溶剂混合的搅拌结晶装置（3）; 用于回收球形聚乙烯颗粒的过滤器（4） 和用于再循环剩余聚乙烯的分离器（5）。
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