摘要:
An adsorbent composition comprises a bismuth material, a promoter and optionally a support. The adsorbent composition is suitable for adsorbing an arsenic material, such as arsine, from a process stream.
摘要:
본 발명은, 적어도 일부가 중화된 산성기를 갖는 수용성 에틸렌계 불포화 단량체의 제 1 가교 중합체를 포함하는 베이스 수지 분말; 및 상기 제 1 가교 중합체가 추가 가교된 제 2 가교 중합체를 포함하고. 상기 베이스 수지 분말 상에 형성되어 있는 표면 가교층을 포함하고, 상기 제 1 가교 중합체에는 100 m 2 /g 이상의 BET 표면적과 0.2 cm 2 /g 이상의 공극도를 갖는 메조 포어가 형성된 다공성 제올라아트가 결합되어 있는 고흡수성 수지와 상기 고흡수성 수지의 제조 방법에 관한 것이다.
摘要:
A method of removing colloidal cobalt from an aqueous composition comprising bringing the aqueous composition into contact with a vinyl aromatic resin, wherein the vinyl aromatic resin comprises benzyl alcohol groups, benzyl ether groups, and methylene bridge groups, wherein the vinyl aromatic resin has a chlorine content, by weight based on the weight of resin, of 10,000 ppm or less.
摘要:
A process for the preparation of a granulated or palletized sorption medium from a partially decomposed organic material like peat, followed by low-temperature thennal activation of the sorption medium to produce a high degree of granule or pellet hardness balanced against an efficacious level of ion-exchange and adsorption capacity, followed by chemical treatment of the sorption material via a preselected solution of soluble salts (called "APTsorb II*Μ") for use in a wastewater treatment process where competing toxic metal cations are present in the wastewater is provided by this invention.
摘要:
Verfahren zur Weiterverwertung eines wasserhaltigen Kohlenstoffrohmaterials umfassend die Behandlung des Kohlenstoffrohmaterials mit Kohlenstoffdioxid oder Wasserdampf oder deren Mischung bei erhöhter Temperatur und das Versetzen des so erhaltenen Kohlenstoffmaterials mit einer Säure.
摘要:
The invention is related to a process for preparation of a molding composition, the process comprising a 1 ) preparing a mixture, the mixture comprising an at least bidentate organic compound or a salt thereof, a metal salt and a solvent, wherein the solvent comprises 25% to 60% by volume of an alcohol, selected from the group consisting of methanol, ethanol, n-propanol and isopropanol, and 40% to 75% by volume of water, and a 2 ) producing the molding composition, the molding composition comprising at least a metal-organic framework material and the solvent, wherein the at least bidentate organic compound or a salt thereof and the metal salt react to the metal-organic framework material. The invention is further related to a process for production of shaped bodies.
摘要:
La présente invention se rapporte à un agent de captation pour le traitement de gaz, ayant une phase active qui comporte un silicate de calcium hydraté de type (CaO)x(SiO2)y(H2O)z avec un rapport molaires Ca/Si compris entre 1,55 et 1,72, de préférence entre 1,65 et 1,72 et un rapport molaires H2O/Ca compris entre 1 et 1,4, de préférence entre 1,1 et 1,3, « z » étant compris entre 0,3 et 0,8, l'agent de captation ayant une surface spécifique supérieure à 120 m²/g, de préférence supérieure à 150 m²/g et de manière particulièrement préférée supérieure à 200m²/g et un volume poreux supérieur à 0,4 cm³/g, de préférence supérieur à 0,6 cm³/g et de manière particulièrement préférée supérieur à 0,8 cm³/g.
摘要:
The invention relates to a process for producing superabsorbents, comprising the preparation of partly neutralized acrylic acid by the steps (i) preparing an over-neutralized acrylic acid having a degree of neutralization of at least 100.1 mol-% by mixing of an acrylic acid 1 and a base and (ii) preparing a neutralized acrylic acid having a degree of neutralization from 50 to 85 mol-% by mixing of the over-neutralized acrylic acid and an acrylic acid 2, wherein the content of dimeric acrylic acid in the acrylic acid 2 is lower than the content of dimeric acrylic acid in the acrylic acid 1.
摘要:
A sulfide recovery coating for containers, tanks, pipes, and pipelines, which sulfide recovery coating includes a sulfide capturing agent embedded within a polymer resin matrix. The sulfide capturing agent is a metal oxide and accounts for less than 70 wt% of a total weight a composition for forming the sulfide recovery coating.