33 results about "Ceramic colorants" patented technology

The invention relates to the technical field of ceramic ink jetting, in particular to ceramic ink-jet ink with low viscosity and a preparation method thereof. The ceramic ink-jet ink comprises the following component according to weight percentage: 35-60 percent of ink diluent, 30-55 percent of ceramic colorant, 0.5-4 percent of ink auxiliary agent and 0.5-10 percent of resin. The ceramic ink-jet ink has low viscosity and low surface tension, is applicable to an ink printing spray head with high precision, and can be applied to a Sayre 1001-type spray head and an American north star 512-type spray head; the ink does not contain water, so that the ink does not corrode a spray head of an ink-jet printer in the using process and the service life of the spray head can be obviously prolonged. The preparation method of the ceramic ink-jet ink comprises the following steps of primarily grinding by using a ball mill and performing refined grinding by using a sand mill, so that the production cost is greatly saved, and the preparation method of the ceramic ink-jet ink is efficient.

A range of processes is described herein for the preparation of a range of gold nanoparticle (Au NP) ceramic glazes with traditional firing methods that represents significant efficiency and ecological advancements over existing methods and allows for the replacement of commercial ceramic colorant methods, while retaining the costly equipment and firing methods already used. The process allows for ceramic surface color while breaking standards for minimal amounts of transition metal colorant used. The nanoparticle-based glazes described here add new colors to the known ceramic surface palette and offers greater consumer safety as an alternative to existing coloring processes that use higher concentrations of toxic metal and an increased risk of metal leaching from the final ceramic vessel into its contents (e.g., soil, beverage, food).

The invention discloses an organic network preparation method of ferrozirconium red zirconia nano-composite ceramic powder. The organic network preparation method comprises the following steps: mixing polyvinyl alcohol with water, heating, stirring, standing, and cooling to the room temperature, so as to obtain an organic network precursor solution; sequentially adding zirconium oxychloride, iron nitrate nonahydrate, silica sol and glutaraldehyde while stirring so as to generate Zr<4+> and coloration ion/organic network gel; after standing, soaking in ammonia water, washing with deionized water until the mixture is neutral, and drying and crushing to generate dry gel powder; calcining so as to obtain the ferrozirconium red zirconia nano-composite ceramic powder. According to the organic network preparation method, ceramic colorant pigments and zirconia ceramic powder are mixed at nano scale, the uniform degree of the mixture of the pigments and the ceramic raw material powder is greatly increased, the sintering temperature of composite powder is decreased, sintered red zirconia ceramic is high in strength and good in color generation, and the influences of carbon residues generated after the combustion of organic matters on the purity of the ferrozirconium red zirconia powder are reduced.

The invention discloses a method for preparing a vanadium-titanium tailings ceramic heat-collecting plate. The method is characterized in that the vanadium-titanium tailings ceramic heat-collecting plate is composed of three parts, namely a heat collecting layer (1), a transition layer (2) and a heat preservation layer (3). According to the vanadium-titanium tailings ceramic heat-collecting plate prepared in accordance with the method disclosed by the invention, light waves with various frequencies can be sufficiently captured under the sunlight irradiation, so that the surface temperature of the vanadium-titanium tailings ceramic heat-collecting plate reaches 100 DEG C, and the heat conversion capability can reach more than 95%; the transition layer is additionally arranged between the heat collecting layer and the heat preservation layer by means of single firing, so that the disadvantages of overlarge diameters of air holes as well as reduced combination strength and thermal impact resistance caused by inconsistent material melting points of the heat collecting layer and the heat preservation layer are effectively overcome; the vanadium-titanium tailings ceramic heat-collecting plate with various colors, such as single color and composite color, can be prepared by means of adding a ceramic colorant; the production technology is simple, the cost is low, and the heat collecting efficiency is good.

The invention discloses a production method for an environmentally friendly, cheap and stable ceramic colorant which is a ferrosilicon red ceramic colorant. The key point of the method is: lanthanum carbonate is introduced into a formulation and is used to effectively and completely enwrap ferric oxide together with silicon dioxide through high-activity lanthana decomposed from the lanthanum carbonate at a temperature of 900 DEG C and the property of having a greater atomic radius of the lanthanum carbonate, thereby enabling the ferric oxide to show stable colors without impacts from ambient surroundings. In addition, the ferrosilicon red ceramic colorant adapted to different temperatures is manufactured through changing the processing conditions.

The invention relates to a method for preparing a hydrophilic dry-mixed colorant applied to an entire-body large-size ceramic sheet material. The method comprises the steps: (1) treating raw materials, wherein the raw materials comprise colorants, a color supporting matrix and a mineralizer with the particle size of 200 to 400 meshes, and a dispersant is premixed according to a formula for later use; (2) proportioning and mixing the raw materials: subjecting various ceramic colorants to weighing and matching, then, loading the mixture to a mill for crushing, and carrying out mixing, drying andscreening; (3) carrying out saggar loading and firing: loading the uniform-mixed and dried green stock to a refractory saggar for calcining according to colorant requirements; (4) carrying out saggardischarging, coarse breaking and fine crushing: carrying out coarse breaking and fine crushing according to set fineness after a calcined matrix colorant is discharged from the saggar, and carrying out fine milling or stirring milling with a ball mill until the fineness is 325 meshes; (5) carrying out repeated washing with hot and cold water or diluted hydrochloric acid until a required pH valueis achieved, carrying out separating, and then, carrying out drying, powdering and screening until the fineness is 325 meshes, wherein the moisture content after drying is lower than 0.5%; and (6) adding 1% to 3% of dispersant, carrying out mixing modification with a three-dimensional mixer or airflow mill, and carrying out packaging and warehousing.

The invention discloses a method for preparing a nickel slag ceramic heat collection panel. The nickel slag ceramic heat collection panel is characterized by consisting of three parts, namely a heat collection layer (1), a transition layer (2) and a thermal insulation layer (3). According to the nickel slag ceramic heat collection panel disclosed by the invention, light waves of each frequency can be fully captured under irradiation of sunlight, so that the surface temperature of the urban sludge ceramic heat collection panel is 100 DEG C, and the thermal conversion capacity can be over 95 percent. With the adoption of once-firing, the transition layer is arranged between the heat collection layer and the thermal insulation layer, so that the defects that the pore diameter is extremely large and the bonding strength and thermal shock resistance are reduced between the heat collection layer and the thermal insulation layer due to inconsistent melting points of materials are effectively overcome. Ceramic colorants are added, so that nickel slag ceramic heat collection panels of various colors such as a single color and composite colors can be prepared, the production process is simple, the cost is low, and the heat collection effect is good.

The invention discloses a ceramic pigment optimization process method, which comprises the following steps: treating ceramic pigment with ultrafining treatment and drying the powder. Moreover, the invention discloses a ceramic pigment with particle mean size of 0.1-1.8mu m. The invention can reduce burnt time and coloring material operating weight; meanwhile, burnt ceramics possesses many super performances such as perfect surface specific absorption and vividness of color compared with product manufactured by common colouring material.

The invention relates to a method for biomineralization treatment of chemical nickel plating wastewater, which comprises the following steps: culturing sporosarcina pasteurii to obtain a bacterial solution, adding the bacterial solution into a mixed solution of urea and chemical nickel plating wastewater according to a specific ratio, carrying out a biomineralization reaction at room temperature, collecting mineralized substances after the reaction is completed, and sequentially washing and drying to obtain nickel carbonate precipitate. According to the design, the nickel ion removal efficiency is high, the by-product nickel carbonate can be used as a ceramic coloring agent to prepare nickel oxide or organic nickel salt, and living bacteria can be recycled.

The invention discloses a method for preparing an urban sludge ceramic heat collection panel. The urban sludge ceramic heat collection panel is characterized by consisting of three parts, a heat collection layer (1), a transition layer (2) and a thermal insulation layer (3). According to the urban sludge ceramic heat collection panel disclosed by the invention, light waves of each frequency can be fully captured under irradiation of sunlight, so that the surface temperature of the urban sludge ceramic heat collection panel is 100 DEG C, and the thermal conversion capacity can be over 95 percent. With the adoption of once-firing, the transition layer is arranged between the heat collection layer and the thermal insulation layer, so that the defects that the pore diameter is extremely large and the bonding strength and thermal shock resistance are reduced between the heat collection layer and the thermal insulation layer due to inconsistent melting points of materials are effectively overcome. Ceramic colorants are added, so that urban sludge ceramic heat collection panels of various colors such as a single color and composite colors can be prepared, the production process is simple, the cost is low, and the heat collection effect is good.

The invention relates to a zirconium phosphate kalium type high-temperature purple ceramic colorant and a preparation method thereof. The colorant is made from industrial chemical raw materials in percentage by weight: 4 to 12 percent of potash, 49 to 58 percent of diammine phosphate, 32 to 37 percent of zirconia, and 2.6 to 7 percent of cobalt oxide. A product is obtained through batching, mixing, calcining, crashing, washing, drying, crashing and drying, wherein a calcining temperature is 1400 DEG C and is kept for 60min. The method adopts usual chemical raw materials with lost cost. The obtained colorant with brilliant coloration and stability can be widely applied to various high-temperature ceramic products.