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Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Применить Всего найдено 18. Отображено 18.
29-01-2016 дата публикации

Process for preparing of Metal oxide with mesopore

Номер: KR0101589581B1
Автор: 유룡, 조창범, 서용범, 신혜선
Принадлежит: 한국과학기술원, 기초과학연구원

... 본 발명은 금속 산화물 및 그의 제조 방법에 관한 것으로, 더욱 상세하게는 관능기를 갖는 고분자 화합물을 이용하여 메조기공을 갖는 금속 산화물을 제조하는 방법 및 그로부터 제조된 금속 산화물에 관한 것이다.

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Номер записи: 1
05-08-2010 дата публикации

PROCESS FOR PRODUCING ZEOLITES WITH BEA, MTW, AND MFI STRUCTURES ADDITIONALLY CONTAINING MESOPORES AND MACROPORES USING CYCLIC DIAMMONIUM

Номер: KR2010087633A2
Автор: RYOO, Ryong, CHOI, Minkee, NA, Kyungsu
Принадлежит:

The present invention relates to the synthesis of zeolites and zeotype molecular sieves having an extremely small crystal size of 5 to 50 nm by adding a cyclic diammonium to a zeolite synthesis composition. Further, the present invention involves molecular sieve materials which are activated or functionalized by a dealumination, an ion exchange, and other post-treatments, and a catalytic activity thereof. The nanocrystalline molecular sieve synthesized by the present invention has mesopores (2 < diameter < 50 nm) and macropores (50 nm < diameter) existing among molecular sieve crystals containing micropores (diameter < 1 nm), thereby increasing molecular diffusion and significantly increasing the activity in the function of a catalyst and an ion-exchange resin as compared to conventional zeolites. Further, the present invention enables the easy diffusion and adsorption of giant molecules, and thus exhibits a significantly high reactivity in the alkylation reaction, acylation reaction, etc ...

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Номер записи: 2
10-07-2017 дата публикации

CARBON STRUCTURE AND MANUFACTURING METHOD THEREOF

Номер: KR1020170079718A
Автор: RYOO, RYONG, KIM, KYOUNG SOO, KWON, YONG HYUN, LEE, TAE KYOUNG
Принадлежит:

The present invention relates to a carbon structure and a manufacturing method thereof, and more specifically, to a carbon structure which has a pore structure of a molecular size that enables a strong molecular sieve function to be realized, and which has physical properties and stability equal to or similar to those of graphene, and a manufacturing method of the carbon structure. One purpose of the present invention is to provide a carbon structure which has a micropore structure that is capable of realizing a strong molecular sieve function, and which has physical properties and stability equal to or similar to those of graphene. Further, another purpose of the present invention is to provide a manufacturing method that is capable of manufacturing a carbon structure having a pore structure to which a micropore structure of a template is transferred using a template with microporosity. The carbon structure of the present invention is a microporous carbon structure, and a pore wall of ...

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Номер записи: 3
31-05-2016 дата публикации

Zeolite materials and their analogue materials comprising mesopore, and producing method thereof

Номер: KR0101621684B1
Автор: 유룡, 조창범, 서용범, 김재헌
Принадлежит: 한국과학기술원, 기초과학연구원

... 본 발명은 제올라이트 또는 유사 제올라이트의 제조방법에 관한 것으로, 더욱 상세하게는 특수 설계된 고분자 유기계면활성제를 이용하여 메조기공을 갖는 제올라이트 또는 유사 제올라이트를 제조하는 방법 및 그로부터 제조된 제올라이트 또는 유사 제올라이트에 관한 것이다.

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Номер записи: 4
12-01-2012 дата публикации

METHOD FOR PREPARING Ε-CAPROLACTAM BY USING HIGH-SILICA NANO-PLATE ZEOLITE

Номер: WO2012005473A3
Автор: RYOO, Ryong, KIM, Jeong Nam, PARK, Woo Jin
Принадлежит:

The present invention provides a method for preparing ε-caprolactam by using high-silica nano-plate zeolite. According to the present invention, the method prepares ε-caprolactam from cyclohexanone oxime by a gas-phase Beckmann rearrangement, wherein a zeolite material having a multilayered or single plate structure in which a single unit crystal lattice or ten or less lattices are connected to be regularly or irregularly arranged is used as a catalyst. According to the present invention, the method for preparing ε-caprolactam can rapidly increase the productivity of ε-caprolactam by using high-silica nano-plate zeolite having a high oxime conversion rate, high ε-caprolactam selectivity and very slow catalyst inactivation. Further, it is also possible to remarkably reduce known frequent catalyst exchange and regeneration processes, and thus it is possible to prepare ε-caprolactam more economically and efficiently.

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Номер записи: 5
15-03-2016 дата публикации

Nano-porous sponge or sheet type zeolite catalyst for synthesis of p-xylene from 2.5-dimethylfuran and ethylene

Номер: KR0101603610B1
Автор: 김철웅, 정순용, 김태완, 김상윤, 유룡, 김정철, 김영진
Принадлежит: 한국화학연구원, 기초과학연구원, 한국과학기술원

... 본 발명은 2,5-디메틸퓨란과 에틸렌을 출발물질로 사용한 고리화 첨가반응(cycloaddition)과 탈수반응에 의하여 선택적으로 파라자일렌을 합성하는 공정에 적용되는 나노기공성 스폰지 또는 시트 형태의 제올라이트 촉매에 관한 것이다. 본 발명의 제올라이트 촉매는 비표면적이 매우 높고, 기공구조가 반응물과 생성물의 물질 전달이 쉽게 일어나도록 되어 있고, 반응활성점에서 부 반응물의 생성을 억제할 수 있는 장점이 있어, 2,5-디메틸퓨란의 전환율 및 파라자일렌의 수율을 현격하게 증대시키는 효과가 있으며, 특히 바이오매스 유래 2,5-디메틸퓨란을 원료물질로 사용하는 파라자일렌의 합성 공정용 촉매로 유용하다.

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Номер записи: 6
05-08-2010 дата публикации

PROCESS FOR PRODUCING ZEOLITES WITH BEA, MTW, AND MFI STRUCTURES ADDITIONALLY CONTAINING MESOPORES AND MACROPORES USING CYCLIC DIAMMONIUM

Номер: WO2010087633A3
Автор: RYOO, Ryong, CHOI, Minkee, NA, Kyungsu
Принадлежит:

The present invention relates to the synthesis of zeolites and zeotype molecular sieves having an extremely small crystal size of 5 to 50 nm by adding a cyclic diammonium to a zeolite synthesis composition. Further, the present invention involves molecular sieve materials which are activated or functionalized by a dealumination, an ion exchange, and other post-treatments, and a catalytic activity thereof. The nanocrystalline molecular sieve synthesized by the present invention has mesopores (2 < diameter < 50 nm) and macropores (50 nm < diameter) existing among molecular sieve crystals containing micropores (diameter < 1 nm), thereby increasing molecular diffusion and significantly increasing the activity in the function of a catalyst and an ion-exchange resin as compared to conventional zeolites. Further, the present invention enables the easy diffusion and adsorption of giant molecules, and thus exhibits a significantly high reactivity in the alkylation reaction, acylation reaction, etc ...

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Номер записи: 7
06-07-2015 дата публикации

METAL OXIDE HAVING MESOPORES AND MANUFACTURING METHOD THEREOF

Номер: KR1020150075850A
Автор: RYOO, RYONG, JO, CHANG BUM, SEO, YONG BEOM, SHIN, HYE SUN
Принадлежит:

The present invention relates to a metal oxide and a manufacturing method thereof and, more specifically, to a manufacturing method of a metal oxide having mesopores using a polymer compound having a functional group and a metal oxide manufactured thereby. A manufacturing method of a mesoporous metal oxide comprises the steps of: forming an organic-inorganic composite gel by mixing a polymer compound having a functional group and a metal oxide precursor; manufacturing a crystalline organic-inorganic composite gel by crystallizing the organic-inorganic composite gel; and selectively removing an organic matter in the crystalline organic-inorganic composite gel. According to the present invention, a mesoporous metal oxide is a novel material, which comprises: a crystalline frame with the thickness below many nanometers; and at least one mesopore or micropore formed by an organic bond thereof. COPYRIGHT KIPO 2015 ...

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Номер записи: 8
10-07-2017 дата публикации

PHOTOLUMINESCENT CARBON AGGREGATE AND MANUFACTURING METHOD THEREOF

Номер: KR1020170080139A
Автор: RYOO, RYONG, KIM, KYOUNG SOO, KWON, YONG HYUN, LEE, TAE KYOUNG, KO, SEUNG HYEON
Принадлежит:

The present invention relates to a carbon aggregate which comprises a carbon dot and has photoluminescence properties emitting white light by absorbing ultraviolet rays. According to an embodiment of the present invention, the carbon aggregate has fine and extremely uniform sizes from a sub-nm order to a nm order, and has different photoluminescence properties, thereby generating white light. COPYRIGHT KIPO 2017 (AA) Intensity (a.u.) (BB) Wavelength (nm) ...

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Номер записи: 9
12-01-2012 дата публикации

ZEOLITE OR AN ANALOGOUS MATERIAL THEREOF INCLUDING MESOPORES ARRANGED REGULARLY OR IRREGULARLY, AND PREPARATION METHOD FOR SAME

Номер: WO2012005449A3
Автор: RYOO, Ryong, JO, Chang Bum, NA, Kyung Su, KIM, Jeong Nam, JUNG, Jin Hwan
Принадлежит:

The present invention relates to a novel zeolite and to analogous molecular sieve materials thereof, which are synthesized by adding a specially designed surfactant to a synthetic composition of zeolite, in which mesopores 2-50 nm in size are regularly or irregularly arranged. The mesopores are formed by a crystalline framework having a thickness not greater than 10 single-unit-cells with one or more crystalline axes, and organic combinations thereof. In addition, the present invention provides micro-mesoporous molecular sieve materials activated or functionalized by dealumination, ion exchange or other post treatments, and the use thereof as a catalyst. These novel materials have dramatically increased external surface area and pore volume by virtue of the hierarchical bonding structure of the micropores and mesopores. The result is an increase in molecular diffusion, and therefore it is expected that these novel materials have much higher activities than conventional zeolites in the functions ...

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Номер записи: 10
12-01-2012 дата публикации

ZEOLITE OR AN ANALOGOUS MATERIAL THEREOF INCLUDING MESOPORES ARRANGED REGULARLY OR IRREGULARLY, AND PREPARATION METHOD FOR SAME

Номер: WO2012005449A2
Автор: RYOO, Ryong, JO, Chang Bum, NA, Kyung Su, KIM, Jeong Nam, JUNG, Jin Hwan
Принадлежит:

The present invention relates to a novel zeolite and to analogous molecular sieve materials thereof, which are synthesized by adding a specially designed surfactant to a synthetic composition of zeolite, in which mesopores 2-50 nm in size are regularly or irregularly arranged. The mesopores are formed by a crystalline framework having a thickness not greater than 10 single-unit-cells with one or more crystalline axes, and organic combinations thereof. In addition, the present invention provides micro-mesoporous molecular sieve materials activated or functionalized by dealumination, ion exchange or other post treatments, and the use thereof as a catalyst. These novel materials have dramatically increased external surface area and pore volume by virtue of the hierarchical bonding structure of the micropores and mesopores. The result is an increase in molecular diffusion, and therefore it is expected that these novel materials have much higher activities than conventional zeolites in the functions ...

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Номер записи: 11
06-07-2015 дата публикации

ZEOLITE OR ZEOLITELIKE MATERIAL HAVING MESOPORES AND METHOD FOR PRODUCING SAME

Номер: KR1020150075813A
Автор: RYOO, RYONG, JO, CHANG BUM, SEO, YONG BEOM, KIM, JAE HEON
Принадлежит:

The present invention relates to a method for producing zeolite or zeolitelike material and, more specifically, to a method for producing zeolite or zeolitelike material having mesopores by using a specially designed polymer organic surfactant, and zeolite or zeolitelike material produced through the same. COPYRIGHT KIPO 2015 ...

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Номер записи: 12
07-09-2015 дата публикации

ORGANIC SURFACTANT FOR PRODUCING ZEOLITE HAVING MESOPORE OR ANALOGUE ZEOLITE MATERIAL AND METHOD FOR PRODUCING SAME

Номер: KR1020150102542A
Автор: RYOO, RYONG, PARK, WOO JIN, CHO, CHANG BUM
Принадлежит:

The present invention relates to an organic surfactant for producing zeolite or an analogue zeolite material, and a method for producing the same. According to the method of the present invention, when producing an organic surfactant including two or more functional groups from primary, secondary, and tertiary amine or ammonium functional groups, a high cost process of heating and removing an excessive amount of a solvent, used through distillation under reduced pressure after a reaction is finished, is fundamentally excluded, thereby remarkably reducing synthesis costs of the organic surfactant. Moreover, an additional step of re-crystallizing a generated product is not needed. When the method of the present invention is applied, zeolite which has an ultrafine thickness plate structure and hexagonal and irregular mesopore and may be replaced by conventionally-commercialized zeolite can be cost-effectively mass-produced. COPYRIGHT KIPO 2015 ...

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Номер записи: 13
23-02-2016 дата публикации

NANO-POROUS SPONGE OR SHEET-TYPE ZEOLITE CATALYST FOR SYNTHESIS OF PARA-XYLENE FROM 2,5-DIMETHYLFURAN AND ETHYLENE

Номер: KR1020160020317A
Автор: KIM, CHUL UNG, JEONG, SOON YONG, KIM, TAE WAN, KIM, SANG YUN, RYOO, RYONG, KIM, JEONG CHUL, KIM, YOUNG JIN
Принадлежит:

The present invention relates to a nano-porous sponge or sheet-type zeolite catalyst applied to a process of selectively synthesizing para-xylene by cycloaddition and dehydration using 2,5-dimethylfuran and ethylene as starting materials. The zeolite catalyst of the present invention has high specific surface area, has a pore structure formed to enable easy material transfer of a reactive material and a product; controls generation of a byproduct on a reaction activating point to increase conversion ratio of 2,5-dimethylfuran and yield of para-xylene; and especially is useful as a catalyst for synthesis process of para-xylene using biomass-derived 2,5-dimethylfuran as a raw material. COPYRIGHT KIPO 2016 ...

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Номер записи: 14
12-01-2012 дата публикации

METHOD FOR PREPARING Ε-CAPROLACTAM BY USING HIGH-SILICA NANO-PLATE ZEOLITE

Номер: WO2012005473A2
Автор: RYOO, Ryong, KIM, Jeong Nam, PARK, Woo Jin
Принадлежит:

The present invention provides a method for preparing ε-caprolactam by using high-silica nano-plate zeolite. According to the present invention, the method prepares ε-caprolactam from cyclohexanone oxime by a gas-phase Beckmann rearrangement, wherein a zeolite material having a multilayered or single plate structure in which a single unit crystal lattice or ten or less lattices are connected to be regularly or irregularly arranged is used as a catalyst. According to the present invention, the method for preparing ε-caprolactam can rapidly increase the productivity of ε-caprolactam by using high-silica nano-plate zeolite having a high oxime conversion rate, high ε-caprolactam selectivity and very slow catalyst inactivation. Further, it is also possible to remarkably reduce known frequent catalyst exchange and regeneration processes, and thus it is possible to prepare ε-caprolactam more economically and efficiently.

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Номер записи: 15
07-09-2015 дата публикации

ORGANIC SURFACTANT FOR PRODUCING ZEOLITE HAVING MESOPORE OR ZEOLITE ANALOGUE MATERIAL AND METHOD FOR PRODUCING SAME

Номер: KR1020150102240A
Автор: RYOO, RYONG, PARK, WOO JIN, CHO, CHANG BUM
Принадлежит:

The present invention relates to an organic surfactant for producing zeolite or a zeolite analogue material, and a method for producing the same. According to the method of the present invention, when an organic surfactant including one or more primary, secondary, or tertiary amine or ammonium functional groups is produced, by fundamentally removing a high cost process of removing a solvent overused after completion of reaction by applying heat under reduced pressure distillation, costs taken to synthesize the organic surfactant can be remarkably reduced. Moreover, a process of additionally re-crystallizing a generated product is not needed. When the method of the present invention is applied, it is expected that zeolite having ultrafine thickness plate structured, hexagonal, and irregular mesopore and capable of replacing conventionally commercialized zeolite can be cost-effectively mass-produced. COPYRIGHT KIPO 2015 ...

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Номер записи: 16
13-12-2022 дата публикации

다관능 인산기를 함유한 고분자 첨가제 및 이의 제조방법

Номер: KR20220164229A
Автор: 안교덕, 유룡, 강현, 허정무
Принадлежит:

... 본 발명은 아미노기를 포함하며 말단에 두 개 이상의 히드록시기를 함유하는 폴리에테르에 인산화 반응시켜 제조된 다관능 인산계 고분자 첨가제로서, 콘크리트 제조시 폴리카르본산계 혼화제와 혼합하여 사용하면 블리딩 발생이 적고, 콘크리트의 점성이 증가하여 발생하는 작업성 및 생산효율 저하 문제를 해결하고, 슬럼프 로스가 적어 장시간 작업성과 유동성 유지에 우수한 효과를 발현할 수 있는 콘크리트용 혼화제를 제조할 수 있다.

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Номер записи: 17
22-11-2017 дата публикации

탄소 구조체 및 이의 제조방법

Номер: KR0101799359B1
Автор: 유룡, 김경수, 권용현, 이태경
Принадлежит: 기초과학연구원, 한국과학기술원

... 본 발명의 탄소 구조체는 마이크로 다공성 탄소 구조체이며, 마이크로 기공의 기공벽이 단일 원자층의 탄소층이다. 즉, 본 발명의 탄소 구조체는 마이크로 다공성 탄소 구조체이며, 마이크로 기공이 탄일 원자층의 탄소층에 의해 규정된다.

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Номер записи: 18