摘要:
본 발명은 산화금속을 높은 비율로 함유하는 산화금속-실리카 복합 에어로겔의 제조방법 및 이를 통하여 제조된 산화금속-실리카 복합 에어로겔에 관한 것이다. 이에 따른 산화금속-실리카 복합 에어로겔의 제조방법은 산성조건에서 1차 반응을 수행하고 염기성 조건에서 2차 반응을 수행함으로써 균일한 망상구조를 용이하게 형성하면서 산화금속 비율을 고함량으로 조절할 수 있으며, 이에 제조된 산화금속-실리카 복합 에어로겔은 산화금속을 고비율로 포함할 수 있어 기계적 물성이 우수할 수 있을 뿐 아니라 고비표면적 및 낮은 탭 밀도 특성을 나타낼 수 있다.
摘要:
A process for the beneficiation of Manganese ore which includes the step of leaching of the ore with acid to remove Calcium Carbonate and Magnesium Carbonate. The ore is first broken down to the required particle size by conventional means. Selective leaching of Calcium oxide and Magnesium carbonate occurs leaving an ore having a higher Manganese content.
摘要:
Die vorliegende Erfindung betrifft ein Verfahren zum kontinuierlichen Verbrennen eines elektropositiven Metalls zur Erzeugung thermischer Energie sowie eine Vorrichtung zum kontinuierlichen Verbrennen eines elektropositiven Metalls zur Erzeugung thermischer Energie.
摘要:
A Continuous flow synthesis of nanocrystalline metal oxides by rapid sol-gel process is disclosed. The process disclosed uses an impinging microjet micromixer device to obtain the nano crystalline metal oxides. A method of fabricating and assembling the impinging microjet micromixer is also disclosed herewith.
摘要:
A Continuous flow synthesis of nanocrystalline metal oxides by rapid sol-gel process is disclosed. The process disclosed uses an impinging microjet micromixer device to obtain the nano crystalline metal oxides. A method of fabricating and assembling the impinging microjet micromixer is also disclosed herewith.
摘要:
Rheology modifying agents and methods of modifying the rheology of a slurry are disclosed, in addition to methods for the prevention of fouling. The slurry can be a lime slurry or a magnesium oxide slurry. The rheology modifying agent can be a low molecular weight anionic polymer, a high molecular weight polymer, a mixture of a low molecular weight anionic polymer and a high molecular weight polymer, a mixture of a high molecular weight polymer and a chelating agent, and a mixture of a chelating agent, a high molecular weight polymer, and a low molecular weight anionic polymer.
摘要:
La présente invention concerne une suspension à base de chaux comprenant un additif, ainsi qu'un procédé de préparation d'une telle suspension. De telles suspensions sont notamment utilisées comme agent de neutralisation chimique dans des procédés industriels ou domestiques.
摘要:
The present invention relates to a metal oxide catalyst represented by the following Formula 1, which is useful for the production of linear polyglycerol via etherification of glycerol, and a method for its preparation thereof: [Formula 1] (CaO)a?Ca12Al14O33)100-a wherein a refers to a weight ratio of CaO based on 100 parts by weight of the total catalyst. When the alkaline binary metal oxide catalyst according to the present invention is used in the glycerol etherification, it can produce a large amount of linear polyglycerol glycerol. Therefore, the metal oxide catalyst prepared according to the present invention can be effectively used in the production of polyglycerol suitable as cosmetic or food additives.
摘要:
Disclosed are particulates of calcium oxide and calcium hydroxide which are suitably used for filling a gas fixing unit (32) of a fixation device (3) for a halide gas. Particularly disclosed are those particulates highly reactive with a halide gas or a decomposition product thereof. Specifically disclosed is a porous calcium oxide particulate composed of spherical porous calcium oxide particles, which has a BET specific surface area of not less than 50 m 2 /g. The total pore volume of pores having a diameter of 2-100 nm contained in all the porous particles is within the range of 0.40-0.70 mL/g. Also specifically disclosed is a porous calcium hydroxide particulate composed of spherical porous calcium hydroxide particles, which has a BET specific surface area of not less than 20 m 2 /g. The total pore volume of pores having a diameter of 2-100 nm contained in all the porous particles is within the range of 0.25-0.40 mL/g.