TH13173B - Precipidade Silica Partially Hydrophobic - Google Patents

Abstract

DC60 (17/06/40), a partial hydrophobic precipitate, characterized by a 10 to 49% methanol load, especially with a DBP uptake anhydride. More than 250 g / 100 g anhydrous and average particle size 1 to 12 microns and / or carbon content 0.3 to 1.85% and / or drying loss 2.6 to 10.0% and / or pH 5.5 to 10.0. Which was prepared by mixing the quantity of substances that Does not like water with suspensions, presipite silica. Using a very short time and low pH, the solids are removed, washed, salt-free, dried, thermic-post. Treated and ground This partially hydrophobic precipitate silica can be used for mixing active ingredients. And mixing of active ingredients of sensitive substances that are sensitive to hydrolysis and in foaming agents Partially hydrophobic precipitate silica is characterized by a methanol weighting factor of 10 to 49%, especially with a DBP uptake anhydrous greater than 250 g / m. 100 g and an average particle size of 1 to 12 mu m and / or carbon content of 0.3 to 1.85% and / or loss from drying 2.6 to 10.0% and / or pH 5.5 to 10.0 were prepared by mixing. Amount of substance Does not like water with suspensions, presipite silica. Using a very short time and low pH, the solids are removed, washed, salt-free, dried, thermic-post. Treated and ground This partially hydrophobic precipitate silica can be used for mixing active ingredients. And mixing of active ingredients of sensitive substances that are sensitive to hydrolysis and in foaming agents

Claims (6)

1. Partially hydrophobic presipitate silica, characterized by a methanol wtabilite value of 10-49% 2. Thin hydrophobic presipitate silica. Claim 1, with an anhydrous DBP absorption (DBP value) greater than 250 g / 100 g 3. Partially hydrophobic presipitate as described in the claim. No. 1 with an average particle size of 1 to 12 mu m 4.Presipitate, partial hydrophobic silica pursuant to claim 1 with a carbon content of 0.3 to 1.85% 5. Precipitates Partially hydrophobic silica pursuant to claim 4 with 2.6 to 10% loss on drying 6. Partially hydrophobic precipitate silica pursuant to claim 5 with pH. 5.5 to 10 7. Partial hydrophobic precipitates pursuant to claim 2 with carbon content of 0.3 to 1.85% 8. Partial hydrophobic precipitates as per claim. Rights 7 with loss of drying 2.6 to 10% 9. Precipitate, partial hydrophobic silica according to claim 8 with pH 5.5 to 10 1 0. Precipitate. Partially hydrophobic tate according to claim 3, with a carbon content of 0.3 to 1.85% 1. 1.Presipitate, partially hydrophobic silica pursuant to claim 10 with 2.6 to 10% drying loss 1. 2.Presipitate, partially hydrophobic silica pursuant to claim 11 with a pH of 5.5 to 10 1. 3. The process of producing partial hydrophobic silica pursuant to Clause 1 through 12, which is characterized by To obtain the required degree of hydrophobic, the required amount of hydrophobic substances was mixed with the produced precipitate silica suspension. Obtained by using a known method According to the ratio provided The shortened time is at most 5 s and the pH value is as low as 3, with the use of high shear. The machine provides a continuous shear force which Ultra-Turrax, Kothoft-Mischsirene or Rheinhutte mixer filters hydrophobic substances containing precipitate silica suspensions. And wash until without salt Dried Precipice Tate silica cake from filtration. Homogeneous to hydrophobic using known thermally-posttreat or pretreatment and add to mechanical or jet grinding 1 4.Partial use of precipitate silica according to claims 1 through 12, as a supporting agent in the active ingredient formulation 1. 5. Partially hydrophobic precipitate silica according to claim 14 as a substrate in the formulation. Contains active ingredients that are sensitive to hydrolysis 1 6. Use of partial hydrophobic precipitate silica pursuant to any of Clause 1 to 12 in the reducing agent.