摘要:
The present disclosure includes filter aids comprising expanded perlite and methods for preparation thereof. The perlite used for making the filter aids may be processed by dehydration, expansion, milling, and/or screening. The expanded perlite has a higher density compared to expanded perlite prepared without dehydration.
摘要:
A composite filter aid may include a silicate substrate and a precipitated magnesium silicate having a mole ratio of SiO 2 :MgO greater than about 1.0:1. A method for making a composite filter aid may include providing a silicate substrate, precipitating a magnesium silicate onto the silicate substrate to form a composite filter aid, wherein the mole ratio of SiO 2 :MgO of the magnesium silicate is greater than about 1.0:1. A method for filtering a non-aqueous liquid may include providing a non-aqueous liquid for filtering and filtering the non-aqueous liquid through a composite filter aid.
摘要:
A method for calcining diatomaceous earth may include adding at least one lattice interfering agent to the diatomaceous earth to form a composite material. The method may further include heating the composite material at a temperature of at least about 800°C for at least about 15 minutes to form an at least partially calcined composite material. The at least one lattice interfering agent may include at least one cation of at least one of aluminum and titanium. A diatomaceous earth product may include the at least partially calcined composite material formed from the above- noted method for calcining diatomaceous earth. A filter aid may include the diatomaceous earth product.
摘要:
Methods for regenerating an article for capturing carbon dioxide (CO 2 ) from a gas stream include removing a CO 2 capture sorbent from an adsorbent capture honeycomb. Removing the CO 2 capture sorbent from the capture article may include contacting the adsorbent honeycomb and a volume of fluid, wherein the fluid removes the sorbent from the honeycomb, and the honeycomb binder is insoluble in the fluid. Restoring the article may include contacting the honeycomb with a regeneration fluid to deposit a CO 2 capture sorbent on a surface of the honeycomb.
摘要:
Provided is a method for treating sulfuric acid comprising the step (I) of bringing said sulfuric acid into contact with a collection of solid particles (B) having BET surface area of 50 m2/g to 5,000 m2/g and having volume-average particle diameter of 200 µm or less.
摘要:
Die Erfindung betrifft ein Material, enthaltend mindestens 97 Gew.% Erdalkalicarbonat, mit einem Calciumoxid-Gehalt von 0,3 Gew.% oder weniger und einer Korngruppe von 0,1 bis 1,8 mm. Die Erfindung betrifft ferner ein Verfahren zu dessen Herstellung sowie seine Verwendung zur Entsäuerung, Filtration und/oder Aufhärtung von Flüssigkeiten.
摘要:
La présente invention concerne l'utilisation, pour la séparation de gaz, d'au moins un matériau adsorbant zéolithique comprenant au moins une zéolithe de type FAU, ledit adsorbant présentant une surface externe supérieure à 20 m 2 ⋅ g -1 , une teneur en phase non zéolithique (PNZ) telle que 0 3 ⋅ g -1 à 0,25 cm 3 ⋅ g -1 , un rapport (Vmicro - Vméso) / Vmicro compris entre -0,5 et 1,0, bornes non incluses, et une teneur en phase non zéolithique (PNZ), telle que 0
摘要:
Composition pour le traitement de fumées comprenant : - de la chaux hydratée présentant une surface spécifique BET égale ou supérieure à 25m 2 /g et un volume poreux total BJH égal ou supérieur à 0,1 cm 3 /g; - au moins un additif choisi parmi le groupe constitué de NaCl, Na 2 SO 4 , CaCl 2 et leurs mélanges, le rapport en poids additif/chaux hydratée étant supérieur à 1 : 100, - moins de 5% en poids d'eau.
摘要:
An X-ray amorphous magnesium carbonate is disclosed that is characterized by a cumulative pore volume of pores with a diameter smaller than 10 nm of at least 0.018 cm 3 /g, and a specific surface areas of at least 60 m 2 /g. The X-ray amorphous magnesium carbonate is produced by reacting an inorganic magnesium compound with alcohol in a CO 2 atmosphere. The X-ray amorphous magnesium carbonate can be a powder or a pellet and acts as a desiccant in, for example, production of food, chemicals or pharmaceuticals.