CAS: 1344-09-8; Sodium Silicate

专利信息

专利号:US-2016008797-A1
优先权日:2014-06-04
标 题:Method for the synthesis of porous inorganic material, catalytic cracking of petroleum hydrocarbons and preparation of catalyst thereof
发明人：CHEN LETIAN; CHEN JIANZHONG
权利人:ZHANJIANG GIANT SUCCESS INVEST CO LTD
摘要:A method for synthesis of porous inorganic materials, preparation of a catalyst and catalytic cracking of petroleum hydrocarbons thereof includes processes for synthesis of porous inorganic materials and preparation of the catalytic cracking catalyst and catalytic cracking of petroleum hydrocarbons. The synthesis process is advantaged in low cost in raw materials; the porous inorganic material has various pore structures; and transitional metal used overcomes the defects of the catalytic properties. The porous inorganic material serving as the main active ingredient and containing crystalline aluminum silicate zeolite structures provides surface acidity required by the catalytic reaction. The surface acidity is flexibly adjusted. The hierarchical pore profile improves the accessibility of the active center of the zeolite structure and favors the reaction efficiency and benefits of the petroleum hydrocarbon cracking, and reduces the negative effects caused by diffusion limit. The catalyst containing the porous inorganic material has low manufacturing cost and better properties.

专利号:US-11939264-B1
优先权日:2022-11-22
标题:Preparation method for hydrothermal synthesis of fly ash silicate aggregate
发明人：CHEN SHENGQIANG; ZHAI ZHUHE; ZHANG BING; SHANGGUAN LINJIAN; CHEN RUIXIAO; LI LUYANG; YANG GE; HAN MING; LI GUOWANG; YIN RUI; WANG TINGTING; LIU YONGCHUAN; CHEN DAN
权利人:HENAN BUILDING MATERIALS RES AND DESIGN INSTITUTE CO LTD
摘要:The present disclosure provides a preparation method for hydrothermal synthesis of fly ash silicate aggregate including: mixing sodium metasilicate, potassium hydroxide, and inorganic-organic hybrid excitation monomer as raw materials to obtain an inorganic-organic composite activator; preparing a silicate aggregate raw material, mixing measured fly ash, carbide slag, quicklime, and vitrified micro bubble by mass, adding the inorganic-organic composite activator and continue stirring to produce a mixture; forming a ball disc, wetting an expanded perlite that forms a core of the ball by spraying water, adding a prepared mixture, spraying water while adding, standing and curing, performing a maturation and activation treatment in an autoclave, undergoing a silicon calcium reaction for a hydrothermal synthesis to obtain the silicate aggregates. The present disclosure obtains silicate aggregates with high-performance by accelerating an internal activity of fly ash at an early stage and fully activating the activity of fly ash in all process.

专利号:US-5965105-A
优先权日:1998-06-12
标 题:Process for the synthesis of flyash based Zeolite-A
发明人：RAYALU SADHANA; LABHASETWAR NITIN KUMAR; KHANNA PURUSHOTTAM
权利人:COUNCIL SCIENT IND RES
摘要:The present invention relates to a process for synthesis of flyash based Zeolite-A, said process comprising grinding and mixing of flyash and caustic soda in a ratio of 1:1.2 and optionally adding sodium aluminate or aluminium hydroxide to obtain a fine homogeneous fusion mixture; heating the said mixture in an inert vessel at about 500-600 DEG C. for about 1-2 hrs. to obtain a fused mass; cooling, milling, and mixing the said fused mass in distilled water for about 8-10 hrs. with simultaneous optional additon of sodium aluminate or alum solution, in the present or absence of NaC1 followed by optional addition of zeolite-A seeding to obtain amorphous alumino -silicate slurry; subjecting the said slurry to hydrothermal crystallisation at about 90-110 DEG C. for 2 to 4 hrs. to obtain Zeolite-A crystals; and washing the said crystals with water and then subjecting the washed crystals to oven drying at about 50-60 DEG C. to obtain the FAZ-A crystals.

专利号:US-10457560-B1
优先权日:2007-12-07
标 题 :Synthesis of mesoporous silica shapes using sodium silicate as a silica source
发明人：SOKOLOV IGOR; NAIK SAJO P
权利人:SOKOLOV IGOR; NAIK SAJO P; UNIV CLARKSON
摘要:This invention describes the self-assembly of meso(nano)porous silica particles from inorganic an inexpensive silica precursor, sodium silicate. The particles have a well defined shape, high surface area, and high uniformity of the pore size, the properties that are typically found for high quality mesoporous material synthesized from organic silica precursors. The disclosure illustrates a synthesis of hard spheres, discoids, and a mixture comprising discoids, gyroids and fibers, termed as origami.

专利号:US-11554348-B2
优先权日:2016-11-10
标 题 :Method of preparing hierarchical porous channel molecular sieve membrane and application thereof
发明人：GU XUEHONG; YAO XUN; PENG LI
权利人:NANJING UNIVERSITY OF TECHNOLOGY
摘要:The invention relates to a method for preparing a hierarchical porous zeolite membrane and an application thereof, comprising the following steps: a mesoporous structure-directing agent is added to limit the growth of zeolite crystals, and self-assembled in the crystallization process to generate a mesoporous structure. Based on a seed crystal induced secondary nucleation mechanism, this method can realize one-step hydrothermal synthesis of hierarchical porous zeolite membrane with the advantages of mild and controllable synthesis conditions, simple process, good repeatability, reduced energy consumption and cost savings. The hierarchical porous zeolite membrane prepared by the method has good cut-off performance, and the cut-off molecular weight is adjustable between 200 to 500,000 Da.

专利号:US-4961861-A
优先权日:1988-09-01
标题:Process for working up hydrolysis residues from the synthesis of organochlorosilanes
发明人：DEGEN BRUNO; FELDNER KURT
权利人:BAYER AG
摘要:A process is disclosed for working up the high-boiling, solids-containing residues obtained in the synthesis of organochlorosilanes which are hydrolyzed and then optionally oxidized, with oxygen-containing gases, comprising adding during hydrolysis and/or oxidation a surface-active substance which hydrophilicizes the surface of the solids.