36results about How to "Reduced sedimentation volume" patented technology

The invention discloses a wear-resistant surface modified calcium carbonate filler and a preparation method thereof. The filler is characterized by being prepared from the following raw materials by weight part: 100-150 of calcium carbonate, 30-50 of sodium oleate, 0.3-0.7 of sodium dodecyl benzene sulfonate, 1-3 of sodium bicarbonate, 4-8 of styrene, 0.02-0.05 of potassium persulfate, 3-5 of fumed silica, 2-3 of organic bentonite, 0.5-2 of an aluminate coupling agent, 3-5 of silicon carbide, 2-3 of grapheme, and a proper amount of deionized water. The silicon carbide and graphene added in the invention bond closely with calcium carbonate under the action of the aluminate coupling agent, and enhances the wear resistance, oxidation resistance, high hardness, good tensile strength and other characteristics of calcium carbonate. The wear-resistant surface modified calcium carbonate filler provided by the invention has reasonable formula and simple process, the prepared calcium carbonate filler has excellent performance in all aspects, is suitable for use as an additive of paint and building materials, and endows the product with wear resistance, better durability and longer service life.

The invention discloses an electric flocculation membrane bioreactor comprising a reactor body, wherein a contact oxidation tank, a settling tank and a membrane biological reaction tank are arranged in the reactor body; a contact oxidation aerator and soft fillers are arranged in the contact oxidation tank, the membrane biological reaction tank is communicated with a filtration membrane group, the membrane extraction water outlet of the filtration membrane group is communicated to a pure water discharge pipe, a sewage input pipe is further arranged on the reactor body, at least one group of positive and negative flocculation electrodes is arranged in the reactor body, and the positive and negative flocculation electrodes are electrically connected with an electric flocculation power supply; the contact oxidation tank, the settling tank and the membrane biological reaction tank are mutually communicated in sequence, and a precipitate return pipe is arranged in the settling tank and / or the membrane biological reaction tank. The electric flocculation membrane bioreactor disclosed by the invention can not only effectively reinforce the aggregation state of activated sludge, but also improve the cell activity of the sludge bacteria, enhance the deoxidation and dephosphorization effects, alleviate the membrane pollution and improve the flux and prolong the service life of the membrane, thereby being capable of being widely applied in treatment of various of sanitary sewage.

The invention discloses modified calcium carbonate with high whiteness and a wide application range and a preparation method thereof. Modified calcium carbonate is characterized by being prepared from the following raw materials in parts by weight: 100-150 parts of calcium carbonate, 30-50 parts of sodium oleate, 0.3-0.7 part of sodium dodecyl benzene sulfonate, 1-3 parts of sodium bicarbonate, 4-8 parts of styrene, 0.02-0.05 part of potassium persulfate, 3-5 parts of fumed silica, 2-3 parts of organic bentonite, 1-2 parts of shea butter, 2-3 parts of nano barium sulfate, 2-3 parts of activated zinc oxide and proper amount of deionized water. The whiteness of calcium carbonate powder is improved and the light, weather and chemical corrosion resistance, impact strength, and the like of the product can be improved through synergistic effects of the shea butter, nano barium sulfate and activated zinc oxide, so that the quality of the product is greatly improved and the product is worthy to be popularized.

The invention discloses modified calcium carbonate for automobile plastic and a preparation method thereof. The modified calcium carbonate is characterized by being composed of the following raw materials in parts by weight: 100 to 150 parts of calcium carbonate, 30 to 50 parts of sodium oleate, 0.3 to 0.7 part of sodium dodecyl benzene sulfonate, 1 to 3 parts of sodium bicarbonate, 4 to 8 parts of styrene, 0.02 to 0.05 part of potassium persulfate, 3 to 5 parts of gas-phase silicon dioxide, 2 to 3 parts of organic bentonite, 2 to 4 parts of zinc oxide, 1 to 2 parts of silane coupling agent kh550, 3 to 4 parts of meerschaum powder, and a proper amount of deionized water. The added zinc oxide and meerschaum powder can be bonded to calcium carbonate under the action of coupling agent, thus the sterilizing performance, thermal insulation property, and anticorrosion performance of calcium carbonate are further enhanced, the modified calcium carbonate can be applied to automobile plastic to prolong the service life of automobile shell, at the same time, anti-aging performance and decorative effect of the automobile plastic are also strengthened, the automobile quality is improved therefore, and the modified calcium carbonate is worthy to promote.

The invention discloses modified calcium carbonate for an uvioresistant cable material and a preparation method thereof. The modified calcium carbonate is characterized by being prepared from, by weight, 100-150 parts of calcium carbonate, 30-50 parts of sodium oleate, 0.3-0.7 part of sodium dodecyl benzene sulfonate, 1-3 parts of sodium bicarbonate, 4-8 parts of styrene, 0.02-0.05 part of potassium persulfate, 3-5 parts of gas phase silica, 2-3 parts of organic bentonite, 2-4 parts of emulsified paraffin, 2-4 parts of carbon nano powder, 2-3 parts of sodium lignosulphonate and an appropriate amount of deionized water. The added carbon nano powder, the added sodium lignosulphonate and the added emulsified paraffin improve the dispersibility of calcium carbonate powder, and the modified calcium carbonate is good in fluidity and excellent in uvioresistant performance and can prolong the service life of the cable material when serving as the packing of the cable material. The preparation method is simple, raw material sources are wide, the cost is low, and the modified calcium carbonate has very good strengthening effect when serving as the packing of the cable material, and is worthy of popularization.

The invention discloses modified calcium carbonate for papermaking and a preparation method thereof. The modified calcium carbonate is characterized by being prepared from the following raw materials in parts by weight: 100 to 150 parts of calcium carbonate, 30 to 50 parts of sodium oleate, 0.3 to 0.7 part of sodium dodecyl benzene sulfonate, 1 to 3 parts of sodium bicarbonate, 4 to 8 pats of styrene, 0.02 to 0.05 part of potassium persulfate, 3 to 5 parts of gas-phase silicon dioxide, 2 to 3 parts of organic bentonite, 1 to 2 parts of zinc stearate, 3 to 5 parts of linen-cotton fiber slurry, 1 to 2 parts of dimethyl diallyl ammonium chloride, and a proper amount of deionized water. The added zinc stearate, linen-cotton fiber slurry and dimethyl diallyl ammonium chloride can generate a synergetic effect, can be well dispersed, and can be tightly adhered to calcium carbonate to strengthen the alkali-resistant and salt-resistant performance of calcium carbonate. Moreover, the modified calcium carbonate is high efficient and nontoxic, is easy to control, can increase the paper whiteness and enhance the paper strength, and has a wide application prospect.

The invention discloses a modified calcium carbonate padding for architectural decoration and a preparation method thereof. The padding is characterized by being prepared from the following raw materials in parts by weight: 100-150 parts of calcium carbonate, 30-50 parts of sodium oleate, 0.3-0.7 part of sodium dodecyl benzene sulfonate, 1-3 parts of sodium bicarbonate, 4-8 parts of styrene, 0.02-0.05 part of potassium peroxodisulfate, 3-5 parts of fumed silica, 2-3 parts of organic bentonite, 3-5 parts of shale ash, 2-4 parts of ardealite powder, 1-2 parts of aluminum dihydrogen tripolyphosphate and a moderate amount of deionized water. According to the preparation method, the added shale ash, ardealite powder and aluminum dihydrogen tripolyphosphate can significantly improve the rigidity, whiteness and stability of calcium carbonate, and have the characteristics of being anticorrosive and weather-proof, and capable of keeping relatively high strength; moreover, the cost is reduced; the preparation method provided by the invention is simple and convenient to operate; industrialization is easy to achieve; the produced padding has a good decorative function if used in architectural decoration industry.

The invention discloses styrene-coated modified calcium carbonate and a preparation method thereof. The styrene-coated modified calcium carbonate is characterized by being prepared from the following raw materials by weight: 100 to 150 parts of calcium carbonate, 30 to 50 parts of sodium oleate, 0.3 to 0.7 part of sodium dodecyl benzene sulfonate, 1 to 3 parts of sodium bicarbonate, 4 to 8 parts of styrene, 0.02 to 0.05 part of potassium persulphate, 3 to 5 parts of fused silica, 2 to 3 parts of organic bentonite, 1 to 2 parts of magnesium laurate, 3 to 4 parts of meerschaum fiber, 3 to 5 parts of coconut shell charcoal and a proper amount of deionized water. According to the invention, the added magnesium laurate, meerschaum fiber and coconut shell charcoal interact to promote adsorptivity, resistance to acidic and alkaline corrosion, heat insulation and radiation resistance of calcium carbonate; and the prepared modified calcium carbonate has good dispersibility, heat insulation performance and corrosion resistance and is capable of reducing cost and improving various processing performances and service life of products when applied to a variety of materials.

The invention discloses modified calcium carbonate having good processability and a preparation method thereof. The modified calcium carbonate is characterized by being prepared from, by weight, 100-150 parts of calcium carbonate, 30-50 parts of sodium oleate, 0.3-0.7 part of sodium dodecyl benzene sulfonate, 1-3 parts of sodium bicarbonate, 4-8 parts of styrene, 0.02-0.05 part of potassium persulfate, 3-5 parts of gas-phase silica, 2-3 parts of organic bentonite, 2-3 parts of quartz powder, 1-3 parts of glycerol monostearate, 2-3 parts of straw fiber powder and anappropriate amount of deionized water. The added quartz powder, the added glycerol monostearate and the added straw fiber powder improve the advantages of dispersibility, antistatic property, abrasion resistance, fire resistance, high mechanical strength, good adsorbability and the like of the calcium carbonate, the calcium carbonate can have good compatibility with lots of substances, produces stronger bonding power, serves as a packing to be added and does not reduce the performance of a product, the cost can be reduced, and the modified calcium carbonate is high in large-scale production feasibility and worthy of popularization.