Multivariate catalyst for hydrogenation of edible oils and its preparation method

Preparation method of modified attapulgite powder for paper making filler

The present invention discloses a preparation method of modified concave-convex soil powder for paper making filling: (1) high purity concave-convex soil powder with purity of 99.5 percent and whiteness of 87 is made into pulping with solid content of 10-20 percent and average particle size 1-2microns; (2) prepare titanium ion solution, the titanium concentration is 0.2-1mol per litre, the molar ratio of titanium ions and solution is 1 to 2, pH value is 2-3; (3) the pulping and titanium ion solution is mixed, the reaction temperature is 50-75DEG C, the reaction duration is 1-3 hours, and evenly coated suspension is formed; (4) the suspension is filtrated, after cleaning the filter cake, the pulping with solid content of 10-20 percent is made, after 250-350DEG C spraying and drying, the modified concave-convex soil powder is obtained. The concave-convex soil powder in the present invention is taken as paper making filling, which can improve paper whiteness, gloss, printing performance, paper ...

Process for preparing solid superacid catalysts used for synthesis butyl p-hydroxybenzoate

The present invention discloses preparation process of butyl p-hydroxybenzoate as solid super acidic catalyst. The preparation process includes the following steps: adding attapulgite clay into 20.0-45.0 wt% concentration Ti(SO4)2 solution, with the amount of attapulgite clay being 8-16 wt% of Ti(SO4)2, and soaking to obtain suspension; regulating the pH value of the suspension to 6-10 with NH3.H2O, ageing for 6-24 hr, suction filtering, washing, drying at 378-383 K for 12-24 hr, grinding to below 200 mesh to obtain white powder; soaking the white powder in 0.1-1.51 mol/l concentration H2SO4 solution for 5-25 min, filtering, washing, drying at 378-393 K for 1 hr, grinding to below 200 mesh to obtain white powder; and roasting in air atmosphere at 623-873 K to activate for 3 hr to obtain the solid super acidic catalyst. The solid super acidic catalyst has high activity, high selectivity, long service life, low production cost and other advantages.

Simple high-performance modification process for attapulgite clay

The invention discloses a simple and efficient attapulgite clay modification method. The method comprises the steps of dipping the attapulgite clay; extruding the dipped attapulgite clay for twice; adding a modifying agent solution; refrigerating; performing heat processing; and pulverizing to obtain the modified attapulgite clay. The method is a semidry process. The crystal bundle separation of the attapulgite clay and the modification procedure are integrated as one procedure; the modification is complete and no three-waste is produced; and the processing efficiency is high.

Method for effectively dispersing depolymerization and preventing secondary agglomeration of attapulgite clay crystal bundle

The invention discloses a method for effectively dispersing depolymerization and preventing secondary agglomeration of attapulgite clay crystal bundle, comprising the following steps of: firstly, extruding crude attapulgite clay ore by an extruding machine, drying the crude attapulgite clay ore by a rotary kiln till the moisture is less than 2%, crushing the dried crude attapulgite clay ore by a jet mill into attapulgite powder with 200 meshes; secondly, placing the attapulgite powder into a reaction container with a sealing cover and an ultrasonic stirrer at the normal temperature, adding polar organic solvent to the attapulgite clay by the mass ratio of the attapulgite clay to the polar organic solvent of 1: 3, soaking the attapulgite clay for 30-60 minutes and then ultrasonically stirring the attapulgite clay for 20-40 minutes to obtain slurry; filtering the slurry by a compact filter mesh to remove the solvent to obtain filter residue, and recycling the solvent; drying the filter residue ...

Preparation of flue gas desulfurizer and use and regeneration method thereof

The invention discloses preparation of a flue gas desulfurizer and use and a regeneration method thereof, comprising the following steps: adding 10-50wt% of active carbon in attapulgite power with the grain size of 45 mu m; mixing uniformly and adding proper amount of water to stir to be pasty; forming in a forming machine; drying for 3-5 hours at the temperature of 105 DEG C in a baking oven; baking for 2-5 hours at the temperature of 300-500 DEG C in nitrogen atmosphere so as to obtain a carrier; putting the carrier in 0.8-2.2 mol/L Cu(NO3)2 solution, soaking for 2-6 hours with the same volume; drying for 3 hours at the temperature of 60 DEG C, drying for 5 hours at the temperature of 105 DEG C, and baking for 3 hours at the temperature of 200-400 DEG C in nitrogen atmosphere so as to obtain the desulfurizer; putting the desulfurizer in a reactor at the reaction temperature of 120-300 DEG C, normally pressing smoke gas, wherein the air speed is 600-80000 h<-1>, the percentage of desulfurization ...

Preparation method of modified attapulgite powder for paper making filler

Preparation, use and reproduction method of reproducible load type flue gas desulfurization agent

The invention discloses a preparation, use and reproduction method of a reproducible load type flue gas desulfurization agent, which comprises the following steps: adding activated carbon which accounts for 15 to 60 percent of the weight of attapulgite powder into the attapulgite powder with the grain diameter of 45mum; mixing the materials; adding water for stirring and forming; drying the materials for 3 to 5 hours at 105 DEG C; then, roasting the materials for 2 to 5 hours at 300 to 500 DEG C to obtain carriers; placing the carriers into 0.2 to 1.0mol/L Ce(NO3)3 solution for isometric impregnation for 2 to 6 hours; firstly, drying the materials at 60 DEG C for 3 hours; then, drying the materials at 105 DEG C for 5 hours; finally, roasting the materials for 3 hours in nitrogen gas atmosphere at 200 to 400 DEG C to obtain the desulfurization agents; loading the desulfurization agents into a reaction vessel; introducing normal pressure flue gas at 120 to 300 DEG C, wherein the airspeed ...

Preparation of flue gas desulfurizer and use and regeneration method thereof

The invention discloses preparation of a flue gas desulfurizer and use and a regeneration method thereof, comprising the following steps: adding 10-50wt% of active carbon in attapulgite power with the grain size of 45 mu m; mixing uniformly and adding proper amount of water to stir to be pasty; forming in a forming machine; drying for 3-5 hours at the temperature of 105 DEG C in a baking oven; baking for 2-5 hours at the temperature of 300-500 DEG C in nitrogen atmosphere so as to obtain a carrier; putting the carrier in 0.8-2.2 mol/L Cu(NO3)2 solution, soaking for 2-6 hours with the same volume; drying for 3 hours at the temperature of 60 DEG C, drying for 5 hours at the temperature of 105 DEG C, and baking for 3 hours at the temperature of 200-400 DEG C in nitrogen atmosphere so as to obtain the desulfurizer; putting the desulfurizer in a reactor at the reaction temperature of 120-300 DEG C, normally pressing smoke gas, wherein the air speed is 600-80000 h<-1>, the percentage of desulfurization ...

Sample pre-dividing device for food granular material

The invention relates to a sample pre-dividing device for a food granular material. The device comprises a material receiving box, a material distributing box and a sample dividing grille, wherein the material receiving box is a rectangular box with a bottom plate; the bottom plate is provided with a longitudinal material receiving and dividing chute; the material receiving box is arranged in the material distribution box; the two sides of the material distributing box are upwards and inwards bent to form fastening grooves for fastening the two sides of the material receiving box; the material receiving box can transversely slide in the material distributing box; the bottom of the material distributing box is also provided with longitudinal material distributing and dividing chutes; the size and the gap of the material distributing and dividing chutes are the same as those of the material receiving and dividing chutes on the material receiving box; the material distributing box in which ...

Microwave preparing method for nanometer silver or gold

Preparing method of suspended compound clay filtering material

The invention discloses a method used for preparing a suspension compound clay filter material. The method includes the following steps: (1) froth polythene granules are subject to hydrophile pre-treatment by being soaked in polyvinyl alcohol; (2) the pre-treated froth polythene granules are adopted as internal cores which are mixed in attapulgite slurry firstly and then are fished out to be rolled in dry attapulgite powders to be covered by attapulgite so as to get raw filtering material; (3) a layer of ceramic glaze is painted onto the raw filtering material and is dried; (4) the raw filtering material coated with ceramic glaze is mixed into the attapulgite slurry and then is taken out and is rolled in a dry compound material powder so as to be covered by compound materials; (5) the covered filtering material is rolled in an empty plate to lead the material to become strong and round, and after drying, the materials are fed into a muffle furnace for agglomeration to get the suspension ...

Particle dispersing device

The invention relates to a particle dispersing device. A motor is fixed at the lower part of the motor frame, and the output shaft of the motor penetrates upwards through the motor frame and is connected with a driving screw; the periphery of the driving screw is provided with a shaft sleeve, and a lifting screw sleeve is assembled on the driving screw and positioned in the shaft sleeve; the lifting screw sleeve is driven by the driving screw to move up and down in the shaft sleeve; the outer wall of the lifting screw sleeve is provided with a guide groove in the axial direction of the lifting screw sleeve, the inner wall of the shaft sleeve is provided with a vertical guide pin, and the guide pin is embedded in the guide groove and forms a slide fit with the guide groove; the top of the lifting screw sleeve is provided with a top plate, the top plate is a round flat plate, a planar elastic body is flatly spread on the upper surface of the top plate, and the edge of the planar elastic body ...

Method for effectively dispersing depolymerization and preventing secondary agglomeration of attapulgite clay crystal bundle

The invention discloses a method for effectively dispersing depolymerization and preventing secondary agglomeration of attapulgite clay crystal bundle, comprising the following steps of: firstly, extruding crude attapulgite clay ore by an extruding machine, drying the crude attapulgite clay ore by a rotary kiln till the moisture is less than 2%, crushing the dried crude attapulgite clay ore by a jet mill into attapulgite powder with 200 meshes; secondly, placing the attapulgite powder into a reaction container with a sealing cover and an ultrasonic stirrer at the normal temperature, adding polar organic solvent to the attapulgite clay by the mass ratio of the attapulgite clay to the polar organic solvent of 1: 3, soaking the attapulgite clay for 30-60 minutes and then ultrasonically stirring the attapulgite clay for 20-40 minutes to obtain slurry; filtering the slurry by a compact filter mesh to remove the solvent to obtain filter residue, and recycling the solvent; drying the filter residue ...

Purification method of high yield for attapulgite clay

The invention discloses a method for purifying attapulgite clay with high yield. The method comprises the following steps: a dispersant fully permeates into various gaps of the attapulgite clay; under the cooperative extrusion, refrigeration and heat processing, attapulgite crystals are separated from impurities, and crystal bundle separation of the attapulgite clay is completed; water is added to conduct dispersion; and the high purity attapulgite clay is obtained through the ordinary centrifugal subsidence method. The method has the advantages of reducing production cost, improving yield and realizing industrial production of high purity attapulgite clay.

Preparing method of suspended compound clay filtering material

The invention discloses a method used for preparing a suspension compound clay filter material. The method includes the following steps: (1) froth polythene granules are subject to hydrophile pre-treatment by being soaked in polyvinyl alcohol; (2) the pre-treated froth polythene granules are adopted as internal cores which are mixed in attapulgite slurry firstly and then are fished out to be rolled in dry attapulgite powders to be covered by attapulgite so as to get raw filtering material; (3) a layer of ceramic glaze is painted onto the raw filtering material and is dried; (4) the raw filtering material coated with ceramic glaze is mixed into the attapulgite slurry and then is taken out and is rolled in a dry compound material powder so as to be covered by compound materials; (5) the covered filtering material is rolled in an empty plate to lead the material to become strong and round, and after drying, the materials are fed into a muffle furnace for agglomeration to get the suspension ...

Method for preparing ink filling material from attapulgite clay

The invention discloses a method for using attapulgite to prepare ink filling material, which belongs to natural mineral resources utilization technology field, wherein the attapulgite is used as raw material, and the powder attapulgite ink filling material is obtained by material selection, drying, ultrafine airflow mill, and surface modification treatment. The invention selects natural nonmetalmineral attapulgite as raw material to prepare ink filling material, which makes full use of natural resources. The invention has simple preparation technology and equipment requires, no pollution produced during process, so the invention can protect the environment, and the filling material can concurrently work as thickener to obviously improve the flowablitity, stability and color strength of the ink.

Method for preparing ink filling material from attapulgite clay

The invention discloses a method for using attapulgite to prepare ink filling material, which belongs to natural mineral resources utilization technology field, wherein the attapulgite is used as raw material, and the powder attapulgite ink filling material is obtained by material selection, drying, ultrafine airflow mill, and surface modification treatment. The invention selects natural nonmetal mineral attapulgite as raw material to prepare ink filling material, which makes full use of natural resources. The invention has simple preparation technology and equipment requires, no pollution produced during process, so the invention can protect the environment, and the filling material can concurrently work as thickener to obviously improve the flowablitity, stability and color strength of the ink.

High pure attapulgite clay and preparation method

The method is preparing high-purity concave soil by physicochemical process to do edulcorating and purifying to natural concave-convex rod clay mine. It is suitable for concave clay mine containing dolomite, quartz sand, calcite or opal. A kind of chemical regent is used as purifying dispersing agent to prepare water solution with proper density which is added concave clay will be processed by machinical forcing and in proper tem., after being fully dispersed and reacted, concave soil with good crystalline form, white color and more than 99 percent of purity is produced by separating and drying.

Preparation, use and reproduction method of reproducible load type flue gas desulfurization agent

The invention discloses a preparation, use and reproduction method of a reproducible load type flue gas desulfurization agent, which comprises the following steps: adding activated carbon which accounts for 15 to 60 percent of the weight of attapulgite powder into the attapulgite powder with the grain diameter of 45mum; mixing the materials; adding water for stirring and forming; drying the materials for 3 to 5 hours at 105 DEG C; then, roasting the materials for 2 to 5 hours at 300 to 500 DEG C to obtain carriers; placing the carriers into 0.2 to 1.0mol/L Ce(NO3)3 solution for isometric impregnation for 2 to 6 hours; firstly, drying the materials at 60 DEG C for 3 hours; then, drying the materials at 105 DEG C for 5 hours; finally, roasting the materials for 3 hours in nitrogen gas atmosphere at 200 to 400 DEG C to obtain the desulfurization agents; loading the desulfurization agents into a reaction vessel; introducing normal pressure flue gas at 120 to 300 DEG C, wherein the airspeed ...

Composite modified attapulgite special for filling paper products and method for preparing same

The invention discloses a modified composite attapulgite clay special for paper wadding and a method for producing the same. The modified composite attapulgite clay is composed of attapulgite clay, light/heavy calcium carbonate, and 1.5-2.5% of surface modifier based on the mass of the mixture, wherein mass ratio of the attapulgite clay to the calcium carbonate is 1:1-1.5. The method comprises: firstly selecting attapulgite clay deposit, in which mass percent of attapulgite clay is more than 30%, secondly, preforming of the attapulgite clay by a twin screw extruder, airing or drying until themass percent of water is less than 5%, and then crushing the preformed attapulgite clay to 4.5 mu m; subsequently, adding the calcium carbonate into a mixer, wherein the thickness of the calcium carbonate is 4.5 mu m, whiteness is more than 85, and the mass ratio is 1-1.1-1.5 based on the attapulgite clay; finally, adding the surface modifier of 1.5-2.5% based on the mass of the mixture and blending ...

Composite modified attapulgite special for filling paper products and method for preparing same

The invention discloses a modified composite attapulgite clay special for paper wadding and a method for producing the same. The modified composite attapulgite clay is composed of attapulgite clay, light/heavy calcium carbonate, and 1.5-2.5% of surface modifier based on the mass of the mixture, wherein mass ratio of the attapulgite clay to the calcium carbonate is 1:1-1.5. The method comprises: firstly selecting attapulgite clay deposit, in which mass percent of attapulgite clay is more than 30%, secondly, preforming of the attapulgite clay by a twin screw extruder, airing or drying until the mass percent of water is less than 5%, and then crushing the preformed attapulgite clay to 4.5 mu m; subsequently, adding the calcium carbonate into a mixer, wherein the thickness of the calcium carbonate is 4.5 mu m, whiteness is more than 85, and the mass ratio is 1-1.1-1.5 based on the attapulgite clay; finally, adding the surface modifier of 1.5-2.5% based on the mass of the mixture and blending ...

Method for preparing desiccative for food-processing apparatus by using attapulgite clay

Microwave preparing method for nanometer silver or gold

Double-layer compound biological filter material for aerated biological filter and method for preparing same

The invention discloses a double-layer compound biological filter material for an aerated biological filter. The double-layer compound biological filter material is formed by combining an inner layer and an outer layer, wherein the inner layer consists of attapulgite clay and fly ash in a weight ratio of 4:6; and the outer layer consists of attapulgite clay, kieselguhr and coal dust in a weight ratio of 7-10:9-12:1. The preparation method comprises the following steps of: uniformly mixing the attapulgite clay and the fly ash, and forming inner cores of solid spheres in a granulator; uniformly mixing the attapulgite clay, the kieselguhr and the coal dust to obtain mixed powder, continuously and slowly adding the mixed powder into the granulator to coat the surfaces of the inner cores of the solid spheres for granulation to obtain the finished product spheres; and drying the finished spheres naturally for 24 hours and in a constant-temperature fan drying box at the temperature of 120 DEG ...

Process for preparing solid superacid catalysts used for synthesis butyl p-hydroxybenzoate

Particle dispersing device

The invention relates to a particle dispersing device. A motor is fixed at the lower part of the motor frame, and the output shaft of the motor penetrates upwards through the motor frame and is connected with a driving screw; the periphery of the driving screw is provided with a shaft sleeve, and a lifting screw sleeve is assembled on the driving screw and positioned in the shaft sleeve; the lifting screw sleeve is driven by the driving screw to move up and down in the shaft sleeve; the outer wall of the lifting screw sleeve is provided with a guide groove in the axial direction of the lifting screw sleeve, the inner wall of the shaft sleeve is provided with a vertical guide pin, and the guide pin is embedded in the guide groove and forms a slide fit with the guide groove; the top of the lifting screw sleeve is provided with a top plate, the top plate is a round flat plate, a planar elastic body is flatly spread on the upper surface of the top plate, and the edge of the planar elasticbody ...

Process for improving viscous of attapulgite by pure physical method rapidly and high-effectively

Process for improving viscous of attapulgite by pure physical method rapidly and high-effectively

The invention discloses a technique for rapidly and efficiently improving the viscosity of attapulgite clay by adopting a pure physical method. The technique is suitable for all the attapulgite clay and the newly-mined attapulgite clay needs no mound for weathering and can be used for treatment. The key technical points are that: the attapulgite clay is soaked, repeatedly extruded for a second time, watered, frozen, heated and crashed to obtain a finished product. The viscosity of the attapulgite clay processed by the technology is 2-8 times of original soil.