681 results about "Low sodium" patented technology

Methods and apparatus for the production of low sodium lithium carbonate and lithium chloride from a brine concentrated to about 6.0 wt % lithium are disclosed. Methods and apparatus for direct recovery of technical grade lithium chloride from the concentrated brine are also disclosed.

A liquid low concentration sodium-containing silicate solution as electrolyte for lead-acid storage batteries and its applications, is prepared by mixing a silica gel containing 40˜60 wt % SiO₂, the weight units of such a silica gel are 5˜15; add 15-25 weight units water and stir until the concentration of the mixture is 0.65˜0.85 ⁰Be′ measured by a Baum densimeter, adjusting the pH value of this mixture to 1-4 using inorganic acid and magnetizing the mixture under 1000-6000 Gauss magnetic field for 5-10 minutes, stir the magnetized mixture until the viscosity of the mixture is less than 0.02 poise and finally obtain a liquid low concentration sodium-containing silicate solution. The electrolyte can be used as electrolyte or activation solution for common or special lead-acid storage batteries.

A stable sodium-free aqueous seasoning solution of agreeable salty taste, adapted as a substitute for common salt in cooked and uncooked foodstuffs, containing purified water, an organic acid, a potassium salt, a calcium salt, and a magnesium salt. The mineral solution provides a dietary supplementation of magnesium, calcium, and potassium—indispensable minerals of a diet—to which colorants, natural essences and artificial essences (singly or in combination), and low concentrations of sodium chloride may be added.

The invention discloses a low-sodium functional compound seasoning which can increase the taste of salty and savory. The invention is characterized in that the low-sodium salt is the main raw material on the basis of which one or a plurality of functional nutrients that can increase the taste of savory and salty, and one or a plurality of savory materials are added; then after mixing, stirring, and granulating, the compound seasoning is made. The compound comprises 20 to 80 portions weight of low-sodium salt, 10 to 30 portions weight of functional nutrient and 3 to 15 portions weight of savory materials. Therefore, the compound seasoning has the advantages of effectively reducing the ingestion of NaCI, outstanding flavoring effect and nutrient function. What's more, the invention can be operated simply for the taste of salty, savory and delicious can be got at a time in the process of cooking.

The present invention is directed to a novel metal-promoted zeolite catalyst, a method of producing the catalyst and a method of using the catalyst for the selective catalytic reduction of NOx with improved hydrothermal durability. The novel metal-promoted zeolite is formed from a low sodium zeolite and is hydrothermally treated after metal ion-exchange.

Methods and apparatus for the production of low sodium lithium carbonate and lithium chloride from a brine concentrated to about 6.0 wt % lithium are disclosed. Methods and apparatus for direct recovery of technical grade lithium chloride from the concentrated brine are also disclosed.

The present invention includes low-sodium salt compositions, Modified Potassium Chlorides and methods of making the same. The low-sodium salt compositions include NaCl, KCl, a cereal flour modifier or modifiers and a food grade acidulant, with the end product preferably having a Na/K ratio of from about 0.1 to about 9.0, more preferably from about 0.4 to about 3, even more preferably from about 0.6 to about 1.5 and most preferably about 1.0. The salt compositions of the present invention can be made by drum drying, extrusion cooking and agglomeration procedures. The preferred procedure includes a two step process: the production of a Modified KCl (MPC) in Step 1, in which KCl is preferably mixed with rice flour and citric acid in a drum drying process, followed by Step 2, in which the MPC is blended and/or co-ground with NaCl in any desired ratio, preferably 50/50, which gives a Na/K ratio of about 1 (i.e. 20% sodium and 20% potassium). This 2-step technique not only masks the bitterness associated with KCl, but also preserves the natural taste/flavor of NaCl in the final product. It is also cost-effective since only the KCl and the modifier are processed in Step 1, which is the most costly part of the overall process.

The invention relates to a preparation method of low-sodium fine grain alumina, in particular to a preparation method of low-sodium submicro grain alumina used for electronic ceramics, microcrystalline ceramics, fine polishing, catalyst carriers and the like. The preparation method is characterized by taking industrial aluminium hydroxide as a raw material in the preparation process and comprising the following steps of: firstly carrying out hydrothermal phase inversion processing on aluminium hydroxide to obtain low-sodium fine grain alumina monohydrate with sodium oxide content being less than 500ppm; briquetting the obtained low-sodium fine grain alumina monohydrate, and then roasting to obtain low-sodium fine grain alumina; and finally grinding and grading, thus obtaining low-sodium submicro alumina. The preparation method of low-sodium fine grain alumina has the advantages of simple production process, wide raw material sources, low production cost, environment friendliness and the like, and can combine with the existing alumina production process and equipment to carry out hydrothermal processing, thus effectively simplifying the production process and lowering the production cost. The method is ideal for preparing ultra-low-sodium boehmite and alumina.

The invention discloses a high-grade potassium chloride production system and a method thereof. The system comprises a raw ore screening and concentrating system, a size mixing system, a floatation system, a low sodium concentration and dehalogenation system, a cold crystallization and thick potassium screening system, a thick potassium concentration and dehalogenation system, a refined potassium washing and dehalogenation system, a piling and filtering storage stock ground system, a breaking and conveying system and a drying cooling, packing, stacking and line crossing conveying system, and all the systems are sequentially connected and are arranged in a three-dimensional mode. Materials enter a next system in a self-flowing mode. An automatic dosing, automatic water adding and dehalogenation device is adopted, a spiral screen type centrifugal machine is used for replacing a horizontal belt type filter, and other technology improvements are adopted, so that the potassium chloride grade is improved to 98 percent from 95 percent, the piling and filtering technology is adopted in the system so that the natural gas using amount can be saved, production operation is convenient, and equipment operation is stable.

The invention relates to a harmless and comprehensive utilization method for vanadium-extraction liquid leached residue (in particular, low-sodium roasted vanadium-extraction liquid leached residue). The method is characterized by comprising the following steps of: taking the vanadium-extraction liquid leached residue as a raw material, extracting the valuable elements, such as vanadium, aluminum, ferrum, phosphorus and the like by carrying out a series of treatments, such as acid leaching, ion exchange, stripping liquid purification, ammonium polyvanadate precipitation, ammonium polyvanadate pyrolysis, and aluminum-ferrum-phosphorus precipitation for a solution obtained after carrying out ion exchange, wherein the liquid leached residue can be harmless and can have chemical stability; and then, mixing the chemical stability with a limestone crushed material and cement, grinding, moistening by using water, then, briquetting, stripping and carrying out natural curing to form a baking-free brick which meets the requirements of the GB6566-2001 on decorative materials.

The invention provides flavored low-sodium seasoning salt. The flavored low-sodium seasoning salt is characterized by being prepared from the following raw materials in percentage by weight: 40 to 80% of sodium chloride, 5 to 30% of potassium chloride, 1 to 10% of flavored peptide, 1 to 10% of a yeast extract, 0.5 to 5% of alanine, and 0.1 to 5% of I+G. The flavored low-sodium seasoning salt can reduce the use quantity of salt but remain the salt taste, thus the intake of sodium can be reduced; the salt is technically reduced; in addition, the fresh is increased; with the adoption of the salt, aginomoto can be saved, and the health can be conditioned.

The invention discloses a preparation method of superfine low-sodium alpha-alumina powder with high activity. Industrial aluminum hydroxide is taken as a raw material; alkali is removed and adsorbed by adding an acid; a compound mineralizer is added to calcine; the superfine low-sodium alpha-alumina powder with high activity, of which the mean grain size D50 is 0.2-1.0micron, is obtained by combining dry ball milling with wet ball milling; the sodium content is 0.01%-0.05%; and the content of the alpha phase is 97%-99%. The problems that the alpha-alumina is high in sodium content, uneven in grain size, poor in sintering activity and the like are solved, special requirements of high-performance ceramic, grinding and polishing materials and the like are met, and the method has the advantages of being simple in process, environmentally friendly, low in cost and the like, and is suitable for large-scale production.

The reverse floatation and cold crystallization process for producing potassium chloride includes the following four steps: 1. reverse floatation to prepare low sodium carnallite; 2. decomposing low sodium carnallite in fresh water, crystallizing, centrifugally filtering and drying to prepare potassium chloride product; 3. microporous membrane filtering to recover fine potassium chloride crystal, dissolving, returning to potassium chloride crystallizer for secondary crystallization to prepare potassium chloride; and 4. returning the bittern for reuse. The process has potassium chloride yield up to 80 %, great potassium chloride crystal granularity and high product quality, and is suitable for industrial production.

The present invention relates to a low sodium salt composition and the method used to make it. More particularly, the invention relates to a two step method of making a salt composition. The first step includes contacting a chloride salt with a modifier to form a chloride salt product, mixing the product with a carrier to form a modified chloride salt solution, and spray drying the modified chloride salt solution. The second step includes contacting the dried modified chloride salt with sodium chloride, and grinding the mixture to form a salt composition. The composition includes a combination of sodium chloride and carrier modified chloride salt.

The invention relates to a preparation method of ultrafine low-sodium alpha-alumina micropowder, and belongs to the technical field of abrasive polishing and sintered body materials. The preparation method of ultrafine low-sodium alpha-alumina micropowder is provided for realizing the reduction of the content of sodium in a raw material aluminum hydroxide, so the sintering temperature is reduced, and the uniformity of the crystal grain granularity of a product is guaranteed. A technical scheme adopted in the invention is characterized in that the preparation method of ultrafine low-sodium alpha-alumina micropowder comprises the following steps: 1, precursor treatment: adding pure water to industrial-grade aluminum hydroxide to prepare a uniform slurry, and adding an acid for sodium removal; 2, calcining: adding the treated aluminum hydroxide to a chloride mineralizer, uniformly mixing, and calcining at 1100-1350DEG C for 1-8h to obtain alpha-alumina; and 3, grinding: crushing the obtained calcining product alpha-alumina to the original grain size in order to obtain alpha-alumina micropowder.

The invention relates to a crystallizer for hydrolyzing carnallite. The crystallize comprises an inner cylinder, an outer cylinder, a mother solution distributor, a stirring paddle, a crystallizer cylinder body, a low-sodium carnallite inlet, a mother solution inlet, a decomposition liquid outlet and a product outlet. According to the crystallizer, the remaining time of low-sodium carnallite in a dissolving region can be prolonged, and the problem that low-sodium carnallite is not fully mixed and decomposed and then overflows to the bottom of the crystallizer from the upper part of the inner cylinder in the existing crystallizer is solved; and generated potassium chloride particles can grow above 0.2mm in particle size to ensure that solid potassium chloride is easily dewatered and dried, and washing water and heat energy required by drying are saved.

Methods and apparatus for the production of low sodium lithium carbonate and lithium chloride from a brine concentrated to about 6.0 wt % lithium are disclosed. Methods and apparatus for direct recovery of technical grade lithium chloride from the concentrated brine are also disclosed.

The invention relates to a color function seasoning low-sodium liquid salt formula and a preparing method of color function seasoning low-sodium liquid salt. Low-sodium liquid salt mother liquor is used as main raw materials of the low-sodium liquid salt. The low-sodium liquid salt mother liquor comprises (according to the mass percent in the mother liquor salt content total quantity) 60%-80% of sodium chloride, 15%-30% of potassium chloride and 5%-15% of magnesium chloride. The low-sodium liquid salt further comprises a plant source function component with the adding quantity (according to the mass added into 100 mL of low-sodium liquid salt mother liquor) is 0.5%-10%. Optimization technologies such as mixing, homogenization, sterilization and filling are carried out, and color function seasoning low-sodium liquid salt products with function component activity being maintained to the maximum degree are prepared. A controllable-quantity liquid packaging container is used, the salt can be easily and evenly blended into food, the problem that solid salt is dissolved slowly, so that excessive adding or uneven dispersing may happen is solved, and accordingly eating is convenient and flexible. Compared with traditional solid salt production, during a production process of the liquid salt, a large amount of equipment needed for salt drying can be reduced, energy loss is lowered, and waste water discharging is lowered.

The invention relates to a method for reducing the content of sodium in aluminum hydroxide, in particular to a method for preparing low-sodium aluminum hydroxide (Na2O is less than 0.1 percent) serving as a fire retardant or a raw material for calcining low-sodium aluminum oxide. The method is characterized by comprising the following steps of: after homogenizing the aluminum hydroxide by using pure water, performing hydro-thermal treatment, and filtering, washing and drying to obtain low-sodium aluminum hydroxide powder. In the method, the aluminum hydroxide prepared by a Bayer process or a sintering process is subjected to the hydro-thermal treatment, so that adherent alkali and lattice alkali in the aluminum hydroxide are dissolved in the water, and the low-sodium aluminum hydroxide powder is obtained by processes of solid-liquid separation, washing, drying and the like, wherein the powder can be used as the fire retardant or the raw material for calcining the low-sodium aluminum oxide. The method has the advantages that a process is simple, industrialization is easy to realize and the like, so the using performance of the aluminum hydroxide fire retardant can be improved effectively, and the low-sodium aluminum hydroxide can be used as the raw material for calcining low-sodium alpha-aluminum oxide.

Methods and apparatus for the production of low sodium lithium carbonate and lithium chloride from a brine concentrated to about 6.0 wt % lithium are disclosed. Methods and apparatus for direct recovery of technical grade lithium chloride from the concentrated brine are also disclosed.