Overview[1][2]
Sodium aluminum phosphate is also called acidic sodium aluminum phosphate. Sodium aluminum acid phosphate (SAP) is a compound that has been widely used in the food industry in recent years. They are used inter alia as long-lasting yeasts for certain bread and pastry products, as additives for regulating the dissolution of cheese and for fixing fats in food products.
Preparation[1]
Add 235 grams of 66.5% Al2D3 aluminum hydroxide to 1045.5 grams of 75% phosphoric acid, and heat the suspension with reflux under stirring until all Dissolve, then cool the resulting solution to 50°C, and then slowly add 84 grams of sodium bicarbonate solution to 934 grams of water while stirring, so that a 39.7% dry extract solution at 120°C can be obtained. The solution is very clear and stable for several months at ambient temperature.
The solution preheated to 50°C is sprayed onto a fluidized bed of particles of the same composition at a rate of 6Kg/h. The fluidized bed is kept expanded by a hot air flow of 140°C. After an average stay of 2 hours in the reactor, the product obtained at a rate of 40Kg/h·m2 is not a powder but a particulate product that is completely crystalline, minimally hygroscopic, and non-sticky after grinding distinctive features. Physical and chemical analysis conforms to NaAl3H14 (PO4)84H2O The crystal structure of this formula.
Apply[2-5]
CN201810790644.3 discloses a pressure-resistant lightweight fireproof board, including the following raw materials in parts by weight: 15 to 30 parts of phenolic resin, 10 to 20 parts of calcined kaolin, 3 to 8 parts of sodium aluminum phosphate, and 4 parts of ferrous sulfate ~7 parts, vermiculite powder 5-10 parts, granite 6-9 parts, gypsum powder 4-10 parts, short fiber 2-4 parts, metal fiber 1-3 parts, modified turbidite 3-8 parts, dioxide trioxide 2 to 5 parts of antimony, 1 to 3 parts of hard copper antioxidant calcium lipate, 2 to 4 parts of tributyl phosphate, 1 to 4 parts of defoaming agent, 2 to 5 parts of curing agent, and 2 to 3 parts of waterproofing agent. By controlling the raw materials and the ratio between the raw materials, the product prepared by the present invention has the characteristics of stable performance, low density, excellent thermal insulation and fireproof performance.
CN200710172045.7 provides a compound phosphate used in frozen dough and its preparation method and application. The compound phosphate has components and weight percentages: acid calcium pyrophosphate 35%~40%, phosphoric acid Dicalcium hydride 20%~30%, sodium aluminum phosphate 35%~40%, the application range of the present invention is quite wide, and can be used for baked frozen dough, frozen pizza, biscuits, sweet bagels, lunch bagels, cake products or thin baking cake. The composite phosphate used in frozen dough of the present invention can effectively partially replace freeze-resistant yeast and play a major role in baking bread. It can greatly reduce the cost of frozen dough and the frozen dough will not lose bread. The original flavor can be maintained or even increased in size without increasing the cost. It greatly reduces the impact of low temperature on yeast during the refrigeration process of frozen dough, thereby strengthening the stability of dough fermentation and being more conducive to industrial food production.
CN201710363103.8 discloses a method for preparing green flame-retardant sheets, which includes the following steps: mix alicyclic epoxy resin CER-170, urea-formaldehyde resin, disodium hydrogen phosphate, and sodium aluminum phosphate evenly, add water, Stir the citric acid evenly to obtain a mixed material; add tung oil composite lignin, cement, antimony trioxide, granite powder, and potassium chloride to the mixed material, mix evenly, put it into a mold and press it into shape, and cool it to room temperature to obtain a green flame-retardant board. . Tung oil composite lignin is prepared using the following process: Mix urea, formaldehyde and water evenly, use sodium hydroxide to adjust the pH value of the system to 9-9.7, raise the temperature and stir, add lignin and OP-10, and use hydrochloric acid to adjust the pH value of the system to 5 -5.4, add tung oil and paraffin, stir, and cool to obtain tung oil composite lignin. The invention has good compatibility, excellent fire resistance and high temperature resistance, excellent water resistance, and no moisture absorption.
CN201210213242 discloses simulated cheese and its preparation method. The raw materials are: milk solids 11.5~26%, fat products 22~50%, emulsified salt 1~2.5%, acidity regulator 0.3~0.6%, stabilizer 0 ~15%, flavoring agent 0~1.8%, coloring matter 0~0.05%, preservative 0~0.1%, flavor substance 0~0.2% and water 20.94~49.02%; emulsified salt is phosphate and 0.5~1.5% citric acid A mixture of salts, or acidic sodium aluminum phosphate; phosphate�� is 0.2~0.7% sodium hexametaphosphate and 0.2~0.4% of the following substances: potassium phosphate, sodium phosphate or sodium pyrophosphate; the preparation method is: shear and premix the raw materials except fat products to obtain a slurry material; the thickness of the shearing knife is 3mm~8mm; the number of shearing knives is 2~5; heat the slurry and fat products, stir and emulsify; cool and refrigerate to get it. The simulated cheese of the present invention has a mild flavor, maintains the original characteristic flavor and functional properties of classic cheese, is used for pizza making, has excellent melting and stringiness, and has a shelf life of at least 6 months. The preparation method of the invention is simple, fast and easy to operate.
Main reference materials
[1] [Chinese invention] CN88108523.5 Method for preparing acidic crystalline sodium aluminum phosphate
[2] CN201810790644.3 A pressure-resistant lightweight fireproof board and its preparation method
[3] CN200710172045.7 A compound phosphate used in frozen dough and its preparation method and application
[4] CN201710363103.8 Preparation method of green flame-retardant sheet
[5]CN201210213242.X A method for preparing simulated cheese and its antioxidant effects
