49 results about "Seignette salt" patented technology

Cyanogen-free preplated copper solution belongs to the technical field of surface treatment electroplating. The solution adopts a nontoxic organic phosphine compound to replace cyanide as a complexing agent for the preplated copper, and is particularly suitable for preplated copper used to electroplate steel, aluminum, magnesium, zinc, titanium and titanium alloy. The cyanogen-free preplated copper solution has the following main technical characteristic that the solution consists of (a) one sort of copper sulphate, basic cupric carbonate or copper nitrate with the volume concentration of between 30 and 60 g/L; (b) one sort or two sorts of compounds selected from methylene diphosphonic acid, 1-hydroxyethylidene 1.1 diphosphonic acid and 1-hydroxybutyleneidene 1.1 diphosphonic acid with the volume concentration of between 120 and 160 g/L; (c) one sort or two sorts of compounds selected from methylamino dimethylene diphosphonic acid, hexamethylene diamine tetramethylene phosphonic acid and ethylenediamine tetramethylene phosphonic acid with the volume concentration of between 2 and 5 g/L; (d) one sort of potassium citrate, amine citrate or seignette salt with the volume concentration of between 6 and 12 g/L, and (e) polyethyleneimine alkyl slat or aliphatic amine ethoxy sulfonated substance (AESS) with the volume concentration of between 0.02 and 0.05 g/L. The cyanogen-free preplated copper solution has the characteristics of stable service performance, simple solution compositions, convenient maintenance, high safety, environmental protection, reliable plating coat binding and the like.

The invention relates to the field of electroplating, in particular to a cyanide-free alkaline copper electroplating composition and a preparation method thereof. According to the cyanide-free alkaline copper electroplating composition, preparation raw materials of 1 L of the cyanide-free alkaline copper electroplating composition comprise 15-17 g of bivalent copper ions, 185-195 g of citric acid,50-60 g of seignette salt, 5-6.5 g of potassium nitrate, 0.5-1 g of 1, 2-cyclohexylenediamine tetraacetic acid, 0.2-0.3 g of a wetting agent, 1.2-1.6 g of a brightener, 0.1-0.15 g of a leveling agentand 1 L of deionized water.

Environment-friendly imitation gold plating production technology aims at solving the technical problems that the stability of plating solution is poor and the range of controllable color parameters is narrow in the present imitation gold plating technology. Potassium pyrophosphate is used as a main complexing agent, and copper sulfate and zinc sulfate are used as main salt, while nitrilotriaceticacid and seignette salt are used as auxiliary complexing agent for performing Cu-Zn-Sn ternary non-cyanide imitation gold plating. Imitation gold coating similar to real gold can be obtained in the technology. Experiments show that, compared with the previous imitation gold plating technology, the novel imitation gold plating technology is easier to control, the stability is greatly improved, theconcentration of main salt is lower, the technology is simpler and cyanide is not used as the complexing agent anymore. Therefore, compared with the conventional technology, toxicity and pollution ofthe novel technology are reduced significantly, thus benefiting popularization of green production.

The invention relates to a trivalent chromium white passivating liquid, wherein, under normal temperature and pressure, water is added into chromium trioxide for mixture and dissolution; seignette salt is added into mixture for stirring, dissolution and reaction; the mixture is kept for a plurality of hours and then stirred; when PH value is between 4 and 5, sulphuric acids are added into the mixture for even stirring; the mixture is kept for a plurality of hours; galvanized parts with over half brightness are immersed into the passivating liquid; the trivalent chromium white passivating liquid is obtained after washing by clear water and drying. The invention has the advantages of capability of directly exhausting cleaning water after passivation, stable nonirritant odor, safe operation and strong corrosion resistance.

Disclosed are high-aluminium bauxite cast-moulding sand and a preparation method thereof. The high-aluminium bauxite cast-moulding sand is characterized by being made of raw materials including, by weight, 80-90 parts of high-aluminium bauxite, 10-16 parts of dilute phosphoric acid solution, 2-3 parts of seignette salt, 3-4 parts of zinc chloride, 1-2 parts of nanometer titania, 45-50 parts of aluminium silicate, 30-40 parts of corn stalk powder, 2-3 parts of leaves powder, 1-2 parts of aluminite powder, 55-60 parts of bentonite, 4-5 parts of sodium metasilicate and a moderate amount of water. Since the high-aluminium bauxite added with the dilute phosphoric acid solution is subjected to calcination, cohesiveness and breathability of the high-aluminium bauxite are improved; by means of adding the corn stalk powder into the high-aluminium bauxite, breathability of the cast-moulding sand is improved, cost is lowered and environmental protection and energy saving are achieved; being added with the nanometer titania and the aluminite powder, the cast-moulding sand is enabled to be good in thermal conductivity. The high-aluminium bauxite cast-moulding sand is smooth, easy to mould, prone to collapsing at high temperature, fast in cooling, timesaving and environmentally friendly, a foundry piece is less prone to bonding with sand, sand buckling is remarkably reduced, brightness of the foundry piece is greatly improved, and economic benefit is increased.

The invention discloses a cyanide-free electroplating bath for the copper plating of iron and steel parts. The electroplating bath provided by the invention comprises copper sulphate, potassium carbonate, one or more than two of organic phosphate and phytic acid, and one or more than two of sodium citrate, seignette salt and potassium thiocyanate. The electroplating bath provided by the invention is applied to the copper plating of the iron and steel parts, and has the advantages of fine and compact coating crystals, dispersing power and covering power both superior to those of cyaniding copper-plating solution, simple components, stability, no decomposition products, no need of heating, reduction in energy consumption and a strong binding force between a coating and a substrate.

The invention relates to a trivalent chromium white passivating liquid, wherein, galvanized parts are immersed into chromium trioxide, seignette salt, sulphuric acids and nitric acids; galvanized parts obtaining white passive films are immersed into chromium trioxide, sodium sulfate, sulphuric acids, nitric acids and potassium permanganate low chromic acid passivating liquid; after passivation again, low chromium iridescent passive films can be obtained. The invention has the advantages of capability of directly exhausting cleaning water after passivation, stable nonirritant odor, safe operation and strong corrosion resistance.

A test liquid of stainless steel chemical composition is prepared by wt.% from compositions as hydrochloric acid of 0.0-20, ammonia water of 0.0 ¿C 90, tin dichloride of 0.0 ¿C 30, ammonium rhodanate of 0.0 ¿C 5, sulfuric acid of 0.0 ¿C 15, phosphoric acid of 0.0 ¿C 10, complexone IV B of 0.0 ¿C 2.5, sodium fluoride of 0.0 ¿C 2, diacetyldioxime of 0.0 ¿C 0.5, sodium hydroxide of 0 ¿C 2.5, Seignette salt of 0.0 ¿C 15, hydroxylamine hydrochloride of 0.0 ¿C 1.5, superammonium sulfate of 0.0 ¿C 2.0, sodium rhodanate of 0.0 ¿C 2.5 and allowance of distilled water.

The invention discloses a wear-resistant surface modifier for manganese phosphating and a preparation method thereof. The modifier comprises the following components: 5 to 15wt% of manganese carbonate, 3 to 15wt% of 40% manganous nitrate solution, 1 to 10wt% of disodium hydrogen phosphate, 5 to 15wt% of Na4P2O7, 0.5 to 3wt% of seignette salt, 0.5 to 3wt% of sodium oleate and 0.08 to 0.8wt% of polyvinyl alcohol. The preparation method comprises the following steps: stirring and mixing the measured manganese carbonate, 40% manganous nitrate solution, seignette salt and sodium oleate, adding measured polyvinyl alcohol, carrying out reaction to generate precipitate, drying and grinding the precipitate into powder of 3 to 30 mu m, adding measured Na4P2O7 at weight ratio of (1 to 10): (10 to 1), and completely and uniformly stirring and mixing the mixture.

The invention discloses a method for utilizing cornstalks for preparing a fertilizer. The method mainly comprises the steps of mixing and fermenting the cornstalks, animal urine and peat according to the equal proportion; then mixing with a particle potash fertilizer, zinc sulfate, citric acid, ferrous sulfate, copper sulfate and seignette salt; adjusting pH to be acid; then drying and pelleting. The method provided by the invention utilizes the cornstalks for preparing the organic fertilizer, on one hand, organic waste materials are fully reutilized, so that the effects on saving energy and protecting environment are achieved; on the other hand, the straws are rich in organic matters and nutrient elements required for crop growth, so that a strong guarantee is provided for crop growth. According to the method provided by the invention, bacillus subtilis and lactobacillus plantarum are adopted for fermenting the cornstalks, so that active substances are fully decomposed and are adsorbed by the crops conveniently and are promoted to absorb nutrients.

The invention discloses a polyaniline sol metal surface treatment agent. The polyaniline sol metal surface treatment agent is composed of, by weight, 1-2 parts of seignette salt, 110-120 parts of polyaniline sol, 1-2 parts of polydimethylsiloxane, 0.7-1 part of silane coupling agent kh550, 2-4 parts of sodium fluorosilicate, 3-5 parts of triethyl phosphate, 0.1-0.2 part of 2-mercaptobenzimidazoleand 0.5-1 part of nickel aminosulfonate. The added sol can effectively improve the adhesive force intensity of a coated film with metal, and therefore the metal protectiveness is improved.

The invention discloses a fiber-surface chemical plating technology used for a fiber grating sensor. The fiber-surface chemical plating technology includes the following steps: A, a fiber base body is preprocessed, and a preprocessed piece is obtained; and B, the preprocessed piece is arranged in plating liquid for chemical plating, wherein one liter of plating liquid comprises 9g to 12 g of blue vitriol, 15 g to 20 g of seignette salt, 25 g to 35 g of sodium hypophosphite, catalysts and oxidation-reduction indicators. According to the fiber-surface chemical plating technology, the surfaces of fibers are metalized in a chemical copper plating manner, and the temperature sensitivity and the strain sensitivity of the fibers are improved.

The invention relates to color the copper red. The process is: first to pre-treat; second to color the copper. The color liquid is made up of: CuSO4 2-8g/L, EDTA-2Na 0.5-1.1g/L, seignette salt 0.1-0.5g/L, ammonium molybdate 0.2-0.9g/L and sodium sulfite 1-2g/L; the pre-treated steel piece is dipped into the color liquid and the temperature is room temperature, the time is 1-5.5min; thirdly to back treat and get the product. The invention has the mild condition and the color liquid has no corrosion to steel and cost little. The treating area of the color liquid can reach 1.1m2/L and has little waste liquid discharge.

The invention provides a chemical milling solution and a chemical milling method thereof. The chemical milling solution comprises the following ingredients, NaOH, Al3+, sodium sulphide, sodium thiosulfate, seignette salt and water which serves as a solvent, the solution is adopted to carry out chemical milling treatment on a workpiece, a high-copper-content aluminium alloy can be successfully reduced, particularly the problem that the surface of a 2219 aluminium alloy is rough is solved, after the workpiece is treated by the chemical milling solution, the surface of the workpiece is smooth, the orange peel is not generated, and the surface roughness can meet the requirement; in addition, the preparation of the solution is easy to operate, and the solution property is stable.

The invention belongs to the technical field of electroplating, and particularly relates to an alkaline graphene zinc-iron alloy electroplating solution and an electroplating process thereof. The alkaline graphene zinc-iron alloy electroplating solution of each liter is prepared from 8-13 g of zinc oxide, 90-125 g of sodium hydroxide, 50 g of seignette salt; 50-90g of graphene nano-particles, 0.35-0.6 g of Fe+, 4 ml-8 ml of a DE additive, 0.03 g-0.06 g of vanillic aldehyde and the balance water. The method comprises the steps of S1, impurity removal and degreasing, S2, water washing acidification; S3, metal electroplating and S4, water washing drying. The temperature of the electroplating solution ranges from 15 DEG C to 30 DEG C; the pH of the electroplating solution ranges from 9 to 14;seignette salt serves as a complexing agent and is most complex, and meanwhile seignette salt is the impurity shelter of alkaline zincate zinc plating; and meanwhile, a certain amount of free tartaricacid exists in the electroplating solution, and the phenomenon that the electroplating solution is instable during electroplating can be avoided.

The invention discloses a method for preparing deer health-protecting feed for enhancing the immunity. The method comprises the following steps: cooking corn grains, cottonseed cake, oats and wheat bran, cooling, uniformly mixing with calcium hydrophosphate, shell powder, bone meal and alfalfa meal to obtain feed base; and grinding premix, additives and feed base, and uniformly mixing with modified starch, and granulating to obtain the deer health-protecting feed. A traditional Chinese medicinal preparation in the raw materials of the additive is prepared by the following steps: grinding traditional Chinese medicinal raw materials, adding enzyme for enzymolysis, heating and extracting with hot water, filtering and concentrating the water extract, wherein a complexing agent containing seignette salt is added in enzymolysis. The preparation method is high in raw material utilization, high in extraction efficiency, high in forming speed and low in energy consumption, the feed has high yield and high stability, excellent flavor, excellent digestion performance, and good sustained release effect, can durably improve the immunity and stress resistance of deer and avoid drug resistance, and can achieve the aims of attracting, protecting health and promoting growth.

The invention discloses a traditional Chinese medicine extracting solution-containing water culture growth-promoting liquid. The traditional Chinese medicine extracting solution-containing water culture growth-promoting liquid is prepared from the following raw materials in parts by weight: 2 to 8 parts of traditional Chinese medicine extracting solution, 25 to 40 parts of urea, 5 to 11 parts of amino acid, 10 to 18 parts of black rice enzymatic hydrolysate, 4 to 9 parts of potassium sulfate, 2 to 5 parts of monopotassium phosphate, 1 to 4 parts of seignette salt and 40 to 60 parts of water, wherein the traditional Chinese medicine extracting solution is prepared from the following raw materials in parts by weight: 3 to 10 parts of fructus rosae laevigatae, 1.2 to 3.5 parts of radix stemonae, 3 to 5 parts of nutmeg, 3 to 8 parts of honeysuckle, 10 to 20 parts of bark of ash, 2 to 6 parts of pollen typhae and 3.5 to 6 parts of lemon leaves. The traditional Chinese medicine extracting solution-containing water culture growth-promoting liquid provided by the invention contains the black rice enzymatic hydrolysate, is rich in a plurality of inorganic salt components, such as manganese, zinc and copper, meanwhile contains the traditional Chinese medicine extracting solution, is uniform in nutrition and has the effect of preventing diseases and insect pests. Growth of crops is in a system with balanced water, fertilizer and nutrition, so that the quality and yield of crops are improved.

The invention discloses a tin cobalt alloy electroplating liquid with good deep plating capacity and an electroplating method thereof. The tin cobalt alloy electroplating liquid with the good deep plating capacity is prepared from the components: 40-50g/L of stannous chloride, 30-40g/L of cobalt chloride, 60-90g/L of potassium chloride, 10-12g/L of EDTA disodium salt, 5-10g/L of seignette salt, 0.05-0.1g/L of dibenzenesulfonimide, 0.3-0.5g/L of thiophene-2-sulfoacid, 0.1-0.2g/L of coumarin and 0.02-0.05g/L of N,N-diethylamine propargylamine. According to the tin cobalt alloy electroplating liquid with the good deep plating capacity and the electroplating method thereof, a primary brightening agent adopted in the electroplating liquid is a composition of the dibenzenesulfonimide and the thiophene-2-sulfoacid, and a secondary brightening agent is a composition of the coumarin and the N,N-diethylamine propargylamine. The four substances are used as the brightening agents of the electroplating liquid, meanwhile, play the synergistic effect on the aspect of improving the deep plating capacity, and none is dispensable. The deep plating capacity of the electroplating liquid is greatly improved, and the tin cobalt alloy electroplating liquid with the good deep plating capacity is very suitable for plating of workpieces with long pipe shapes.

The invention discloses an interior wall formaldehyde-removal paint and a preparation method thereof. The interior wall formaldehyde-removal paint is prepared from, by weight, 100-130 parts of silicone acrylic emulsion, 20-40 parts of diatomaceous earth dispersion liquid, 1-2 parts of seignette salt, 2-4 parts of dodecyl trimethyl ammonium chloride, 1-2 parts of diisocyanate and 1-2 parts of barium naphthenate. The interior wall formaldehyde-removal paint and the preparation method thereof have the advantages that polysorbate dispersion is adopted, the surface activity of diatomaceous earth iseffectively improved, the compatibility of the diatomaceous earth with the silicone acrylic emulsion is improved, thereby improving the adsorption performance of a finished coating.

The invention aims at providing an electrolyte capable of recycling tin from a scrapped electronic circuit board. An anode can be activated in the electrolytic reaction, the bath solution stability isimproved, the deposition speed is improved, the tin can be recycled for forming a board, the recycling efficiency is greatly improved, and the recycling cost is reduced. The electrolyte comprises 80to 135g/L of sodium hydroxide, 10 to 25g/L of an activating agent obtained through mixing of seignette salt and ethylene diamine tetraacetic acid, 30 to 40g/L of a stabilizing agent formed through mixing of methane nitrobenzoic acid and sulfamic acid, and he anode current density ranges from 2.5 A/dm<2> to 6.5 A/dm<2>.

The invention provides a preparing method for using microwaves to assist a normal propyl alcohol-seignette salt double-aqueous-phase system in extracting, separating and purifying phlorizin. The preparing method comprises the steps of smashing raw medicinal materials, using a double-aqueous-phase system composed of normal propyl alcohol, seignette salt and water as an extraction solvent to conductmicrowave assisting extraction, conducting phase splitting, removing salt in the upper phase, recycling the solvent to obtain a coarse product of phlorizin, and then conducting recrystallization to obtain a phlorizin crystal, wherein a recrystallization solvent is prepared from, by volume, 65% of isopropanol and 35% of water. The preparing method has the advantages of integrating extraction and leaching, being easy to amplify, capable of being continuously operated, having an integrated technology, and being environmentally friendly, high in phlorizin transfer rate and purity and the like.

The invention relates to a method for extracting tea polyphenol from tea leaf production wastes. The method comprises the following steps of crushing and screening the tea leaf wastes, refluxing and extracting in ethanol, and filtering the extracting solution, so as to obtain the purifying solution; adding zinc chloride and sodium carbonate precipitate into the purifying solution according to a certain ratio, and filtering the precipitate, so as to obtain a finished product; drying the finished product under the vacuum environment, so as to obtain a pure product; relieving pressure and distilling the pure product, so as to obtain a crude product; extracting the crude product in seignette salt, monopotassium phosphate and ferrous sulfate, so as to obtain the tea polyphenol acidifying solution. The method has the advantages that the method is simple, the cost is low, the implementing is easy, the extracting speed is high, and the purity is high.

The invention discloses a complexing agent used for chemical copper plating solution. The complexing agent comprises the following raw materials in parts by weight: 150-160 kg of seignette salt, 180-200kg of sodium hydroxide, 20-30L of an additive (nickel sulfate) and 1,000L of water. A preparation method of the complexing agent specifically comprises the following steps: 1) adding seignette salt into water, stirring and dissolving until the mixed solution is clear and controlling the temperature at 20-30 DEG C; 2) adding sodium hydroxide, stirring and dissolving until the mixed solution is clear and controlling the temperature at below 70 DEG C; 3) adding an additive M and controlling the temperature at 40-50 DEG C. The complexing agent has the advantages of being low in operation temperature and convenient in use, being capable of improving the stability of the copper plating solution and enabling the thickness of a prepared copper-plated layer to be moderate and stable.

The invention discloses waterborne lubricating oil containing lithium silicate and a preparation method thereof. The waterborne lubricating oil is prepared from the following raw materials in parts byweight: 48-87 parts of water-soluble base oil, 11-17 parts of lithium silicate, 10-16 parts of allantoin, 8-16 parts of seignette salt, 6-15 parts of gamma-polyglutamic acid and 4-8 parts of honey. The waterborne lubricating oil containing lithium silicate has the good water solubility and is convenient to wash; the raw materials are easy to get and environmentally friendly, the physical health of an operator is protected, and the environment is protected; the components are simple and more energy can be saved; and the waterborne lubricating oil can effectively improve the low temperature performance and the anti-wear performance of the lubricating oil, and the application range is wide.