1033 results about "Calcium formate" patented technology

The invention discloses a concrete early-strength agent, which is characterized in comprising the following components according to weight percentage: inorganic salt early-strength component 35-55 percent, organic early-strength component 5-10 percent, water reducing component 15-25 percent, wherein the inorganic salt early-strength component is prepared by at least two among sulfate, carbonate, nitrate, and nitrite; the organic early-strength component selects any one among calcium formate, sodium acetate, calcium oxalate, triethanolamine, tri-iso-propanolamine and carbamide; the water reducing component selects one among naphthalenesulfuric acid type, melamine type and polycarboxylate type. The invention makes the concrete be coagulated and hardened rapidly under the condition of low temperature, so that the early strength of the concrete is greatly improved as well as later strength is ensured.

The invention relates to an admixture for high early strength of concrete, characterized in that the admixture is formed by mixing and stirring cement clinkers, industrial residues, early strength agents, plaster, water reducing agents and excitants. The parts by weight of the components are as follows: 100 parts of cement clinkers, 500-2000 parts of industrial residues, 0.2-3 parts of early strength agents, 1-3 parts of plaster, 0.2-2 parts of water reducing agents and 1-5 parts of excitants. The excitant is the mixture of aluminum hydroxide, calcium nitrite and calcium nitrate; wherein, the aluminum hydroxide accounts for 50% of the mixture while the calcium nitrite and the calcium nitrate are in any proportion; the early strength agent is the mixture of trolamine, lithium carbonate and calcium formate, wherein, the trolamine accounts for 50% of the mixture while the lithium carbonate and the calcium formate are in any proportion. The admixture for concrete provided by the invention has high activity index and low content of harmful ions. Adding the admixture can obviously improve the demoulding strength, long-term mechanical property and durability of the concrete.

The invention relates to poly carboxylic acid system antifreeze applied to cement concrete and a preparation method thereof and belongs to the building material field. The antifreeze is prepared by the optimal combination of an efficient water reduce of poly carboxylic acid, organic alcohol amine, low-carbon alcohol, sulfocyanide and formate. The preferred proportion of the components is that the efficient water reducer to the organic alcohol amine to the low-carbon alcohol to the sulfocyanide to the calcium formate to water is equal to (3.0-8.0) to (0.5-2.0) to (0.0-2.0) to (10.0-20.0) to (0.0-6.0) to (65.0-75.0) (by mass percentage). Compared with the existing antifreeze, the antifreeze of the system has the advantages of high water reducing rate and comparatively good workability and quick growth of strength at negative temperature. The antifreeze has the advantages of low intermingled quantity in the cement concrete, good water solubility, low alkali content, high strength at the early stage and at the later stage of the cement concrete but no chlorine and is applicable to the preparation of various cement concrete at the negative temperature ranging from negative 5 DEG C to negative 20 DEG C in winter in the north area.

The invention discloses a liquid cement grinding aid. The liquid cement grinding aid comprises the following components by weight percent: 10-24% of triethanolamine, 10-16% of polymeric polyol, 10-13% of molasses, 1-3% of calcium formate, 3-5% of sodium acetate, 5-10% of sodium thiosulfate and the balance water. Compared with the prior art, the liquid cement grinding aid has the advantages that the grain composition of a cement material is changed, the strength of cement is improved, enhancing effect of the cement mixed with a large quantity of limestone is improved obviously; the cost is lower as the using amount of triethanolamine is reduced; the cement output in the unit time is increased effectively, and the power consumption of per unit output is reduced as the mixing amount in the cement finishing process is low; the liquid cement grinding aid is green and environmental-friendly and cannot hurt people, or cannot damage buildings and the like as chloridion content is not contained.

The invention provides a white surface mortar compound which comprises the following components of parts by weight: 400 to 600pbw of white cement, 50 to 100pbw of semi-water gypsum, 50 to 100pbw of calcium hydroxide, 200 to 400pbw of modified fiber light calcium, 30 to 50pbw of latex powder which can be dispersed again, 2 to 4pbw of cellulose ether, 1 to 3pbw calcium chloride, 1 to 3pbw of calcium formate, 1 to 3pbw of aluminum potassium sulfate, 1 to 5pbw of polypropylene fiber and 250pbw of water. The surface mortar compound of the invention can be hydrated with cement and other components to form fine, dense and good finish surface to be applied for painting a wall body with different color surfaces, and the cost is reduced while the construction efficiency is enhanced. The compound is particularly applicable to an insulation system of the external wall of a civil building and an office building, which is economic and can be used as the surface mortar and internal dope of other wall bodies.

The invention belongs to the building material technique field, in particular relates to a building thermal insulating mortar. The building thermal insulating mortar is characterized in that the mortar is composed of dry powder and water, the dry powder and water are present in a weight ratio of 1:1.3, when in use, the dry powder is added to the water and agitated evenly; and the dry powder is mixed by materials of modified cement, modified fly ashes, a re-dispersible latex powder, wood fibers, polypropylene fibers, calcium formate, hydroxypropyl methylcellulose, hydrophobic agent, multi-functional auxiliary agent and modified expanded perlite, materials of the dry powder include: 500 parts of modified cement, 160 parts of modified fly ashes, 25 parts of re-dispersible latex powder, 3 parts of wood fibers, 1 part of polypropylene fiber, 5 parts of calcium formate, 6 parts of hydroxypropyl methylcellulose, 1 part of hydrophobic agent, 3 parts of multi-functional auxiliary agent and 300 parts of modified expanded perlite by weight. The building thermal insulating mortar has advantages of strong heat preservation, firm bonding with wall bodies, compression resistance, superior tensile performance, good weathering resistance, environmental protection, and excellent waterproofing, anti-cracking and shedding prevention properties.

The invention discloses a pig intestine nursing healthcare type compound feed and a preparation method thereof. The feed is prepared by the following components of corn, expanded bean pulp, expanded soybean flour, fermented bean pulp, white fish meal, flour, soybean oil, soybean lecithin oil, expanded corn, zeolite powder, calcium hydrophosphate, calcium formate, choline chloride, salt, sucking pig compound premix, acidifier, lysine, methionine, threonine, tryptophan, zinc oxide, medicated premix, monosodium glutamate, Taiweimei, montmorillonite and phytase. The feed is capable of satisfying all the nutritional requirements of the nursed pigs and has high feed conversion rate. According to the feed, the weaning stress of the nursed pigs is considered, the slow-release creep feed is linked and the intestine healthcare problem of the nursed pigs is emphasized; and an intestine adjusting feed additive is selected, so that the diarrhea rate of the sucking pigs is reduced by 50-80%, the pig body structures can be improved at the same time, the pig skeletons are stretched and a foundation is laid for the rapid fattening of the pigs.

The present invention discloses a method for recycling and processing epoxy-ester sewage, relating to a technical method that resources are reclaimed from industrial wastewater to produce chemical products. The technical proposal of the invention is: formic acid sewage generated during the process of epoxy-ester production is treated by oil separating, and then formic acid solution is achieved by reaction with calcium carbonate; and the formic acid solution is further neutralized with calcium carbonate for a plurality of times after sedimentation; coagulant and precipitator are added into the solution to further remove heavy metal and solid impurities, and then is filtered, decolored, evaporated and dried to achieve formic acid powder. The process is applicable to the production of fodder-grade, industrial-grade and other grades of formic acids; besides, the process is characterized in less investment and high yield; and in addition, byproducts such as waste gas and waste water can be reclaimed for reuse. As a result, the reduction of waste water is realized and economic efficiency is improved.

The invention discloses feed for preventing diarrhea of weaning piglets. The feed consists of the following components in parts by weight: 200-300 parts of corn flour, 200-300 parts of rice meal, 100-180 parts of expanded soybean meal, 30-50 parts of fish meal, 220-270 parts of soybean meal, 80-120 parts of whey powder, 80-120 parts of glucose, 50-100 parts of serum concentrate, 20-45 parts of soybean oil, 20-45 parts of calcium hydrogen phosphate, 30-60 parts of calcium formate, 5-15 parts of lysine, 1-3 parts of methionine, 3-6 parts of threonine, 5-10 parts of compound trace elements, 1-2 parts of compound vitamin, 1-2 parts of probiotics, 10-20 parts of short chain fatty acids, 5-8 parts of organic compound acid, 0.5-1 part of enzyme preparation and 1-2 parts of phagostimulant. The feed provided by the invention can be used for effectively avoiding the negative growth of the weight of piglets, reducing the mortality rate of piglets subjected to weaning and the incidence of disease (diarrhea), realizing the rapid growth of the piglets, and obviously shortening the production cycle of the piglets.

The invention relates to a feed additive capable of improving irritability resistance of weaning piglets, as well as preparation and application of the feed additive. The feed additive comprises a composite active ingredient and carrier matrixes, wherein the composite active ingredient comprises the following components in parts by weight: 80-110 parts of glutamine, 30-50 parts of arginine, 40-60 parts of taurine, 80-100 parts of yeast nucleotide, 10-30 parts of vitamin B6, 30-60 parts of vitamin E, 30-60 parts of vitamin C, 10-30 parts of selenium yeast, 50-90 parts of calcium formate, 80-110 parts of sodium butyrate and 80-130 parts of citric acid; during preparation, the components and the carrier matrixes are uniformly mixed; when the feed additive is applied, on the basis of a daily feed formula for piglets, the feed additive, accounting for 0.5-2% of the total mass of the daily feed, is added. Compared with the prior art, the feed additive is capable of reducing adverse impact of irritability on follow-on production property and intestinal health of weaning piglets, improving daily gain and feed conversion rate of weaning piglets, reducing diarrhea rate and death rate of weaning piglets and strengthening adaptive capacity of weaning piglet to a new environment.

The invention discloses feed for improving the immunity of weaning piglets. The feed consists of the following components in parts by weight: 100-200 parts of corn flour, 150-180 parts of rice meal, 150-200 parts of flour, 100-180 parts of expanded soybean meal, 30-50 parts of fish meal, 120-150 parts of soybean meal, 80-120 parts of soybean concentrate, 80-120 parts of whey powder, 80-120 parts of glucose, 50-100 parts of serum concentrate, 20-45 parts of soybean oil, 20-45 parts of calcium hydrogen phosphate, 30-60 parts of calcium formate, 5-15 parts of lysine, 1-3 parts of methionine, 3-6 parts of threonine, 5-10 parts of compound trace elements, 1-2 parts of compound vitamin, 1-2 parts of probiotics, 10-20 parts of short chain fatty acids, 5-8 parts of organic compound acid, 0.5-1 part of enzyme preparation and 1-2 parts of plant extracts. The feed provided by the invention can be used for improving the sub-health status generated in the weaning process, avoiding the negative growth of the weight of piglets, reducing the mortality and incidence of diseases, and realizing the rapid growth of weaning piglets.

The invention discloses a cement concrete antifreezer, which comprises the following components in part by weight: 15 to 30 parts of high-performance polycarboxylate water reducer, 20 to 30 parts of low molecular weight alcohol, 0.1 to 0.15 part of triterpenoid saponins, 10 to 30 parts of calcium formate, 2 to 5 parts of organic alkylol amine and 50 to 70 parts of water, wherein the triterpenoid saponins is used for entraining air to form a large number of superfine air bubbles and improve the frost heaving stress of concrete. By the cement concrete antifreezer, the concrete can be subjected to construction at the temperature of between -20 and -30 DEG C.

The invention relates to a thermal insulation textured decorative face brick for a building outside wall. The face brick comprises the following raw materials in parts by weight: 25-35 parts of cement, 20-35 parts of quartz sand, 10-15 parts of calcite powder, 10-20 parts of wollastonite powder, 2.0-4.0 parts of latex powder, 0.3-0.4 part of hydroxypropyl cellulose, 0.5-1.0 part of wood fiber, 0.15-0.2 part of short polypropylene fiber, 0.2-0.5 part of calcium formate, 10-20 parts of gray calcium powder, 0.1-0.15 part of thixotropic lubricating agent and 0.25-0.5 part of pigment. After being put on the market, the face brick has great market space, and the current monotonous situation of outside wall exterior thermal insulation textured decorative materials can be improved, thus the face brick has active effects on saving energy of buildings and beautifying the environment of cities.

The invention discloses waterproof high polymer easy plaster, and belongs to the technical field of building materials. Based on the percentage, the waterproof high polymer easy plaster comprises the following raw materials: 40-50 percent of ordinary Portland cement, 30-45 percent of 60-120-mesh quartz sand, 5-20 percent of 40-70-mesh quartz sand, 1.5-3.0 percent of redispersible latex powder, 0.2-0.35 percent of hydroxypropyl methyl cellulose, 0.4-0.8 percent of calcium formate, 0.05-0.15 percent of starch ether, 0.2-0.4 percent of hydrophobing agent, and 0.07-0.12 percent of polypropylene fiber. In general, the waterproof high polymer easy plaster is high in bonding strength, is greatly advantaged in waterproof performance in comparison with the previous easy plaster, and meets the social requirement.

The invention relates to a method for coproducing high-purity methanoic acid and monobasic sodium phosphate by reaction of calcium formate and ultraphosphate. The method comprises the following steps that: carbon monoxide enters a reaction tower III; calcium hydroxide enters a reaction tower I to perform a counterflow reaction with carbon monoxide from a reaction tower II, a reaction solution overflows to the reaction tower II to perform the counterflow reaction with the carbon monoxide from the reaction tower III, the reaction solution enters the reaction tower III to perform the couterflow reaction with the carbon monoxide, the reaction solution overflows into a discharge tank from the reaction tower III to prepare a calcium formate preparation solution; the calcium formate preparation solution enters a reaction kettle, methanoic acid is dripped into the reaction kettle, sulfureted hydrogen is introduced into the reaction kettle, the mixture is separated and filtered through a filter I, a filtrate enters a continuous crystallizer, a crystalline liquid enters a filter II, and the filtered calcium formate is prepared into a finished product calcium formate through a drier; ultraphosphate, the methanoic acid and the calcium formate are conveyed into a horizontal double screw reactor to generate the methanoic acid and monobasic calcium phosphate; the methanoic acid and the monobasic calcium phosphate enter a methanoic acid distilling still for reduced pressure distillation; and the monobasic calcium phosphate is delivered to a monobasic calcium phosphate measurement receiving tank, while the monobasic acid enters a methanoic acid receiving tank. The method has high yield of the methanoic acid and low manufacturing cost.