摘要:
A formulation is claimed, which contains at least one protective substance that is active with respect to cellulose-containing materials, such as wood-containing building materials in the form of solid wood or wood-based materials, and at least one specific compound with dispersing properties. The dispersants are branched comb-shaped polymers with polyether side chains, naphthalene-sulfonate-formaldehyde condensation products, melamine-sulfonate-formaldehyde condensation products and phosphatized polycondensation products. The formulations according to the invention are suitable in particular as plant protection agents and wood preservatives and are preferably used in the form of suspensions for pressure treatment of the respective building materials.
摘要:
The present invention relates to processes for the preparation of surface-modified nanoparticulate copper compounds and of aqueous suspensions which comprise surface-modified nanoparticulate copper compounds. The invention furthermore relates to the surface-modified nanoparticulate copper compounds obtainable by these processes and aqueous suspensions of these copper compounds and their use as an antimicrobial active substance or catalyst.
摘要:
The invention relates to novel silver vanadium phosphates, catalysts based on these silver vanadium phosphates and the use of these catalysts for carrying out organic reactions in the gas phase.
摘要:
A chemical mechanical polishing (CMP) composition comprising a specific heteropolyacid Abstract A chemical-mechanical polishing (CMP) composition comprising: (A) inorganic particles, organic particles, or a mixture thereof, (B) a heteropolyacid of the formula HaXbPsMOyVzOc wherein X=any cation other than H 8 0 and a>0 (formula I) or a salt thereof, and, (C) an aqueous medium.
摘要:
Mo-, Bi- and Fe-comprising multimetal oxide compositions of the general stoichiometry I, Mo12BiaCobFecKdSieOx (I), where a=0.5 to 1, b=7 to 8.5, c=1.5 to 3.0, d=0 to 0.15, e=0 to 2.5 and x=the stoichiometric coefficient of O2− which guarantees the electric neutrality of the multimetal oxide, and 12−b−1.5·c=A and 0.5≦A≦1.5, 0.2≦a/A≦1.3, and 2.5≦b/c≦9, and the use thereof.
摘要:
A chemical mechanical polishing (CMP) composition comprising a specific heteropolyacid Abstract A chemical-mechanical polishing (CMP) composition comprising: (A) inorganic particles, organic particles, or a mixture thereof, (B) a heteropolyacid of the formula HaXbPsMOyVzOc wherein X=any cation other than H 8 0 and a>0 (formula I) or a salt thereof, and, (C) an aqueous medium.
摘要:
Mo-, Bi- and Fe-comprising multimetal oxide compositions of the general stoichiometry I, Mo12BiaCobFecKdSieOx (I), where a=0.5 to 1, b=7 to 8.5, c=1.5 to 3.0, d=0 to 0.15, e=0 to 2.5 and x=the stoichiometric coefficient of O2− which guarantees the electric neutrality of the multimetal oxide, and 12−b−1.5·c=A and 0.5≦A≦1.5, 0.2≦a/A≦1.3, and 2.5≦b/c≦9, and the use thereof.
摘要:
A catalyst for gas phase oxidations comprises an inert support and a catalytically active material which comprises vanadium oxide and titanium dioxide and has been applied thereto. The titanium dioxide has a content of sulfur compounds, calculated as S, of less than 1000 ppm and a content of calcium compounds, calculated as Ca, of less than 150 ppm. The catalyst has a relatively high activity and/or selectivity and thus enables relatively high yields of the desired target product, for example phthalic anhydride. Also described is a process for preparing phthalic anhydride, wherein a gas stream which comprises molecular oxygen and o-xylene, naphthalene or mixtures thereof is contacted with the catalyst.
摘要:
An eggshell catalyst consisting of a hollow cylindrical support body of length 2 to 10 mm, external diameter 4 to 10 mm and wall thickness 1 to 4 mm, and an eggshell, applied to the outer surface of the support body, of catalytically active oxide material of the general formula I, Mo12V2 to 4W0 to 3Cu0.8 to 1.5X10 to 4X20 to 40On (I) in which the variables are each defined as follows: X1=one or more elements of the alkali metals and alkaline earth metals; X2=one or more elements from the group of Si, Al, Ti and Zr; and n=the stoichiometric coefficient of the element oxygen, which is determined by the stoichiometric coefficients of the elements other than oxygen and the charges thereof in I.
摘要:
The invention relates to a catalyst for partially oxidizing hydrocarbons in the gas phase, containing a multi-metal oxide of the general formula (I), AgaMObVcMdOe.f H2O (I), wherein M stands for at least one element selected from among Li, Na, K, Rb, Cs, Be, Mg, Ca, Sr, Ba, B, Al, Ga, In, Si, Sn, Pb, P, Sb, Bi, Y, Ti, Zr, Hf, V, Nb, Ta, Cr, W, Mn, Re, Fe, Ru, Os, Co, Rh, Ir, Ni, Pd, Pt, Cu, Au, Zn, Cd, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, and U, a has a value of 0.5 to 1.5, b has a value of 0.5 to 1.5, c has a value of 0.5 to 1.5, a+b+c has the value 3, d has a value of less than 1, e means a number that is determined by the valence and frequency of the elements other than oxygen in the formula (I), f has a value of 0 to 20, which multi-metal oxide exists in a crystal structure, the X-ray powder diffractogram of which is characterized by diffraction reflections at a minimum of 5 lattice distances selected from among d=4.53, 3.38, 3.32, 3.23, 2.88, 2.57, 2.39, 2.26, 1.83, 1.77 AA (+−0.04 AA).