Ceramic flat membrane and method for producing the same
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B01D-029/07
B01D-046/12
출원번호
US-0856496
(2001-12-03)
우선권정보
DE-0057590 (1998-12-14)
국제출원번호
PCT/EP99/09478
(1999-12-03)
국제공개번호
WO00/35561
(2000-06-22)
발명자
/ 주소
Adler, Jorg
Lenk, Reinhard
Richter, Hans-Jurgen
Stockmann, Regina
Tocha, Daniel
Stroh, Norbert
Tudyka, Stefan
출원인 / 주소
Fraunhofer-Gesellschaft zur Forderung der Angewandten Forschung E.V.
대리인 / 주소
Greenblum & Bernstein, P.L.C.
인용정보
피인용 횟수 :
0인용 특허 :
10
초록▼
The invention relates to the area of ceramics and to a ceramic flat membrane which is configured as a multi-channel element. The aim of the invention is to provide a ceramic flat membrane with a larger effective membrane surface. To this end, the inventive ceramic flat membrane consists of at least
The invention relates to the area of ceramics and to a ceramic flat membrane which is configured as a multi-channel element. The aim of the invention is to provide a ceramic flat membrane with a larger effective membrane surface. To this end, the inventive ceramic flat membrane consists of at least two layers of at least two sub-layers of different porosity, at least one of these layers having a non-planar geometry. The two layers are joined to each other with at least spot joins and integral joins. The invention also provides a method for producing a flat membrane of this type. According to this method, suspensions are produced from at least two ceramic powders of different particle size. Two sub-layers are formed from the suspensions, then dried and joined to form one layer. At least one layer which is embossed and sintered, or unsintered is joined to a non-embossed, similarly embossed, differently embossed or differently structured, sintered or unsintered layer with at least spot joins and integral joins to form a flat membrane.
대표청구항▼
The invention relates to the area of ceramics and to a ceramic flat membrane which is configured as a multi-channel element. The aim of the invention is to provide a ceramic flat membrane with a larger effective membrane surface. To this end, the inventive ceramic flat membrane consists of at least
The invention relates to the area of ceramics and to a ceramic flat membrane which is configured as a multi-channel element. The aim of the invention is to provide a ceramic flat membrane with a larger effective membrane surface. To this end, the inventive ceramic flat membrane consists of at least two layers of at least two sub-layers of different porosity, at least one of these layers having a non-planar geometry. The two layers are joined to each other with at least spot joins and integral joins. The invention also provides a method for producing a flat membrane of this type. According to this method, suspensions are produced from at least two ceramic powders of different particle size. Two sub-layers are formed from the suspensions, then dried and joined to form one layer. At least one layer which is embossed and sintered, or unsintered is joined to a non-embossed, similarly embossed, differently embossed or differently structured, sintered or unsintered layer with at least spot joins and integral joins to form a flat membrane. on-cellulosic materials from a cellulosic material, said method comprising contacting the cellulosic material with an aqueous solution comprising pectate lyase at a pH of about 9.0 or above and a calcium ion concentration of less than 0.2 mM, under conditions that result in removal of said non-cellulosic materials. l; US-5019075, 19910500, Spears et al.; US-5024668, 19910600, Peters et al.; US-5041089, 19910800, Mueller et al.; US-5046497, 19910900, Millar; US-5078713, 19920100, Varney; US-5089260, 19920200, Hunter et al.; US-5092841, 19920300, Spears; US-5106360, 19920400, Ishwara et al.; US-5108390, 19920400, Potocky et al.; US-RE33911, 19920500, Samson et al.; US-5110721, 19920500, Anaise et al.; US-5112438, 19920500, Bowers; US-5117822, 19920600, Laghi; US-5147355, 19920900, Friedman et al.; US-5149321, 19920900, Klatz et al.; US-5150706, 19920900, Cox et al.; US-5151100, 19920900, Abele et al.; US-5180364, 19930100, Ginsburg; US-5190539, 19930300, Fletcher et al.; US-5191883, 19930300, Lennox et al.; US-5196024, 19930300, Barath; US-5211631, 19930500, Sheaff; US-5234405, 19930800, Klatz et al.; US-5246421, 19930900, Saab; US-5248312, 19930900, Langberg; US-5250070, 19931000, Parodi; US-5257977, 19931100, Eshel; US-5264260, 19931100, Saab; US-5267341, 19931100, Shearin; US-5269369, 19931200, Faghri; US-5269749, 19931200, Koturov; US-5269758, 19931200, Taheri; US-5281213, 19940100, Milder et al.; US-5281215, 19940100, Milder; US-5306261, 19940400, Alliger et al.; US-5310440, 19940500, Zingher; US-5322514, 19940600, Steube et al.; US-5322515, 19940600, Karas et al.; US-5322518, 19940600, Schneider et al.; US-5326165, 19940700, Walthall et al.; US-5326166, 19940700, Walthall et al.; US-5330435, 19940700, Vaillancourt; US-5330519, 19940700, Mason et al.; US-5334193, 19940800, Nardella; US-5342301, 19940800, Saab; US-5342621, 19940800, Eury; US-5344436, 19940900, Fontenot et al.; US-5344740, 19940900, Iwasawa et al.; US-5354272, 19941000, Swendson et al.; US-5358486, 19941000, Saab; US-5364364, 19941100, Kasvikis et al.; US-5365750, 19941100, Greenthal; US-5368591, 19941100, Lennox et al.; US-5383854, 19950100, Safar et al.; US-5383918, 19950100, Panetta; US-5395314, 19950300, Klatz et al.; US-5395331, 19950300, O'Neill et al.; US-5403281, 19950400, O'Neill et al.; US-5417686, 19950500, Peterson et al.; US-5423745, 19950600, Todd et al.; US-5423807, 19950600, Milder; US-5433740, 19950700, Yamaguchi; US-5437673, 19950800, Baust et al.; US-5443456, 19950800, Alliger et al.; US-5462521, 19951000, Brucker et al.; US-5486204, 19960100, Clifton; US-5486208, 19960100, Ginsburg; US-5487204, 19960100, Nelson; US-5496271, 19960300, Burton et al.; US-5499973, 19960300, Saab; US-5531776, 19960700, Ward et al.; US-5545133, 19960800, Burns et al.; US-5545708, 19960800, Onwunaka et al.; US-5549559, 19960800, Eshel; US-5554119, 19960900, Harrison et al.; US-5558644, 19960900, Boyd et al.; US-5569165, 19961000, Chin et al.; US-5569195, 19961000, Saab; US-5573532, 19961100, Chang et al.; US-5578008, 19961100, Hara; US-5584804, 19961200, Klatz et al.; US-5588438, 19961200, McKown et al.; US-5591162, 19970100, Fletcher et al.; US-5620480, 19970400, Rudie; US-5622182, 19970400, Jaffe; US-5624342, 19970400, Younger; US-5624392, 19970400, Saab; US-5630837, 19970500, Crowley; US-5643197, 19970700, Brucker et al.; US-5647051, 19970700, Neer; US-5653692, 19970800, Masterson et al.; US-5676693, 19971000, LaFontaine; US-5709654, 19980100, Klatz et al.; US-5713941, 19980200, Robins et al.; US-5716386, 19980200, Ward et al.; US-5733318, 19980300, Augustine; US-5733319, 19980300, Neilson et al.; US-5735809, 19980400, Gorsuch; US-5797878, 19980800, Bleam; US-5799661, 19980900, Boyd et al.; US-5800480, 19980900, Augustine et al.; US-5800483, 19980900, Vought; US-5800486, 19980900, Thome et al.; US-5800516, 19980900, Fine et al.; US-5807391, 19980900, Wijkamp; US-5820593, 19981000, Safar et al.; US-5824030, 19981000, Yang et al.; US-5827222, 19981000, Klatz et al.; US-5827237, 19981000, Macoviak et al.; US-5827269, 19981000, Saadat; US-5833671, 19981100, Macoviak et al.; US-5837003, 19981100, Ginsburg; US-5861021, 19990100, Thome et al.; US-5868735, 19990200, Lafontaine; US-5871468, 19990200, Kramer et al.; US-5871526, 19990200, Gibbs et al.; US-5873835, 19990200, Hasting
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