摘要:
The present invention relates to a process for the preparation of a silicate comprising at least silicon and oxygen, comprising (1) mixing of silicon dioxide and/or of a silicon dioxide precursor with an aqueous solution comprising at least one tetraalkylammonium compound comprising R1R2R3R4N+ and at least one base, wherein R1 and R2 are methyl and both R3 and R4 are n-propyl; (2) heating of the colloidal solution obtained according to (1) to a temperature in the range of from greater than the boiling point of the colloidal solution under the chosen pressure to 180° C. at atmospheric pressure to give a suspension comprising at least one silicate, wherein the silicate comprising at least silicon and oxygen is added as a crystallization auxiliary in (1).
摘要:
The present invention relates to a process for the preparation of a silicate comprising at least silicon and oxygen, comprising (1) mixing of silicon dioxide and/or of a silicon dioxide precursor with an aqueous solution comprising at least one tetraalkylammonium compound comprising R1R2R3R4N+ and at least one base, wherein R1 and R2 are methyl and both R3 and R4 are n-propyl; (2) heating of the colloidal solution obtained according to (1) to a temperature in the range of from greater than the boiling point of the colloidal solution under the chosen pressure to 180° C. at atmospheric pressure to give a suspension comprising at least one silicate, wherein the silicate comprising at least silicon and oxygen is added as a crystallization auxiliary in (1).
摘要:
The present invention relates to a process for the preparation of a silicate comprising at least silicon and oxygen, comprising (1) mixing of silicon dioxide and/or of a silicon dioxide precursor with an aqueous solution comprising at least one tetraalkylammonium compound comprising R1R2R3R4N+ and at least one base, wherein R1 and R2 are methyl and both R3 and R4 are n-propyl; (2) heating of the colloidal solution obtained according to (1) to a temperature in the range of from greater than the boiling point of the colloidal solution under the chosen pressure to 180° C. at atmospheric pressure to give a suspension comprising at least one silicate, wherein the silicate comprising at least silicon and oxygen is added as a crystallization auxiliary in (1).
摘要翻译:本发明涉及一种制备至少包含硅和氧的硅酸盐的方法,其包括(1)将二氧化硅和/或二氧化硅前体与包含至少一种包含R 1个R 2 R 3 N 3 R 4 N +和/或以上至少一个碱,其中R R 1和R 2都是甲基,R 3和R 4都是正丙基; (2)将根据(1)获得的胶体溶液在大气压下加热到大于压力下的胶体溶液的沸点至180℃的温度范围内,得到至少包含至少 一种硅酸盐,其中在(1)中加入至少含有硅和氧的硅酸盐作为结晶助剂。
摘要:
The present invention relates to a process for preparing a porous metal-organic framework by reacting at least one metal compound in which the metal is Be, Mg, Ca, Sr, Ba, Al, Ga or In with at least one at least bidentate organic compound and also the use of such porous metal-organic frameworks.
摘要:
The present invention relates to a process for preparing a porous metal-organic framework by reacting at least one metal compound in which the metal is Be, Mg, Ca, Sr, Ba, Al, Ga or In with at least one at least bidentate organic compound and also the use of such porous metal-organic frameworks.
摘要:
An alumina solid is obtainable by a process comprising the step of contacting in a liquid medium at least one alumina precursor with at least one template comprising a membrane lipid or a mixture of two or more thereof.
摘要:
An alumina solid is obtainable by a process comprising the step of contacting in a liquid medium at least one alumina precursor with at least one template comprising a membrane lipid or a mixture of two or more thereof.