The most effective pretreatment route of spent FCC catalyst was calcining at for 1 h, washing with 5% oxalic acid solution in ultrasonic reactor and dried. Treated spent FCC catalyst was modified with metal halides, then to prepare catalyst to remove trace olefins in aromatics. X-ray diffraction...
;CONSTITUTION: Ammonium carbonate, refractory alumina cement of high purity, methyl cellulose and water are added to a boria-silica-alumina oxide powder to be kneaded therewith and the obtained kneaded mixture is granulated in a spherical shape and the formed granules are aged and dried in an ...
The most common grout used for ceramic tile is Portland cement based. There are different types and it is not uncommon to see a fortified grout that contains an additional acrylic water activated adhesive. Liquid additives are also available that enhance standard cement grout. These additives increa...
10. A composition, as claimed in claim 1, characterized in that the specific area of the iron oxide and/or hydroxide is from 2 to 40 m2/g. 11. A composition, as claimed in claim 1, characterized in that the binder is selected from among cement, alumina, silica, montmorillonite, bento...
Good Price China Medium Size Concrete Pumps Portable Mini Cement Concrete Pump Machine Electric Small Concrete Pump $700.00 - $800.00 Min. order: 1 piece Portable Grinding Cutting Electric Power Tool 20V Brushless Cordless Angle Grinder $20.00 - $30.00 ...
Then, the TPCNPs were sonicated with 10 mL ethanol, filtered, rinsed with distilled water, dried at 110 °C for 1.0 h, and used for the next round. In order to eliminate the effect of TPCNP loss during the regeneration investigation, the volumes of solutions were reduced proportionally to...
Praneeth, S.; Zameer, A.; Zhang, N.; Dubey, B.K.; Sarmah, A.K. Biochar admixture cement mortar fines for adsorptive removal of heavy metals in single and multimetal solution: Insights into the sorption mechanisms and environmental significance.Sci. Total Environ.2022,839, 155992. [Google ...
10. A composition, as claimed in claim 1, characterized in that the specific area of the iron oxide and/or hydroxide is from 2 to 40 m2/g.11. A composition, as claimed in claim 1, characterized in that the binder is selected from among cement, alumina, silica, montmorillonite, ...
Oil and fat deposits are removed from concrete, cement and stone floors and other porous solid bodies, e.g. railbed ballast or contaminated earth, by distribution and brushing an aq. bacterial nutrient soln. with various lipophilic and hydrophilic materials based on N and phosphate, with addn....
Oil and fat deposits are removed from concrete, cement and stone floors and other porous solid bodies, e.g. railbed ballast or contaminated earth, by distribution and brushing an aq. bacterial nutrient soln. with various lipophilic and hydrophilic materials based on N and phosphate, with addn....