Classifications

• • C—CHEMISTRY; METALLURGY
  • C01—INORGANIC CHEMISTRY
  • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
  • C01F7/00—Compounds of aluminium
  • C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
  • C01F7/04—Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom
• • C—CHEMISTRY; METALLURGY
  • C01—INORGANIC CHEMISTRY
  • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
  • C01F7/00—Compounds of aluminium
  • C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
  • C01F7/04—Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom
  • C01F7/06—Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom by treating aluminous minerals or waste-like raw materials with alkali hydroxide, e.g. leaching of bauxite according to the Bayer process

Definitions

• the resulting product has a convenient electronic system and is easily filtered.
• the posed problem was solved by the method of obtaining a hydrousaluminate of an alkali metal, including:
• the aluminate solution is pre-packaged, which has a small ratio of alkali metal and aluminum oxides less than 2 0: ⁇ ⁇ ⁇ ⁇ ⁇ 1,1 1.1 to 1.7, and the unit is guided - 5 - at a temperature of 120 to 150 ° C for the concentration of alkali metal oxide from 350 to 400 g / l;
• evaporation is carried out at a temperature of about 150 ° to the concentration of the named oxide in the case of 360 ° to 370 g / l less ⁇ ⁇ .
• a second type of evaporation in 2 stages is more economical, that is, it requires a lower cost of charge (vapor).
• the best variant of the invention is the aluminum-containing raw material, for example nepheline, and the lime grinds to particle sizes of 80-95 ⁇ m.
• ⁇ 2 0 is 1.1 to 1.7.
• 25 sludge separates and returns to the stage of raw material processing.
• the main (greater) part of the obtained alumina is the waste, the purification of the earth, which is used for the extraction of alumina, the earth and the earth,
• evaporated aluminous compound Some of the properties of the evaporated aluminous compound are explained by the fact that, in the case of oxidized metal, there are some metals that are associated with it.
• the use of alumina products with a small retention of more than 2 0: ⁇ 1 2 0 3 more than 1.7 is undesirable, as the aluminous solution is soaked that it rises close to the ground. at a temperature of 120-150 ° C, from the product, isolate the product by installing a very fine product.
• an alkaline metal solution saturated with hydrous aluminum is treated. This discharges with a temperature of 95–50 ° ⁇ , which allows for installation by supplying a moving filter with a temperature of 95 ° ⁇ .
• the aluminum component is divided into instantaneous separation from the installation of the heating system.
• the temperature is 95 ° C – 0 ° C, which is referred to as heating.
• the cooling of the filtering component is carried out by transferring it to the non-working part of the refrigerant, mainly. water.
• the supply of cold (+ 5 ° C) water makes it possible to reduce the temperature of the filtering temperature to 10 ° C.
• ⁇ Brass As a filter it can be used from a polyamide wave that is woven from metal.
• the resulting hydroaluminate of an alkali metal is commercially available.
• the product provides a one-sided white color and a crystalline solid material in the form of salted alkaline - 9 - metal and acid, corresponding to the formula ⁇ réelle 0 « ⁇ 0 3 « 2,5 ⁇ 2 0, where ⁇ réelle- ⁇ rion, ⁇ .
• the product is easy to consume in water, and when stored on the machine, it is lowered to 5 (it is overloaded in the form of a large load)
• the product has a high clean and chemical product mass. $: 25-38 less than 2 , 37.5-44.5 ⁇ ⁇ ⁇ ⁇ , 8Yu 2 no more than 0.1, less than 2 0 3
• Pu ⁇ em i ⁇ mixing with schel ⁇ chnym ⁇ as ⁇ v ⁇ m ⁇ ig ⁇ avlivayu ⁇ shi ⁇ u in ⁇ m ⁇ lya ⁇ n ⁇ e ⁇ n ⁇ shenie ⁇ isl ⁇ v Sa ⁇ and z ⁇ "d ⁇ lzhn ⁇ by ⁇ ⁇ avnym 2.05 and ⁇ e 2 0: (? ⁇ 2 3 0 + e 2 0 3) 0.95.
• a rotating seal is sealed by rotating prints and a temperature of ⁇ 200 ° ⁇ .
• Ge 2 0 360-370 g / l.
• the two-stage cooking process is preferable, since cooking is more efficient and more efficient.
• the advantage of this option is the receipt of the target product will be more affordable. ⁇ and the following - II - explanation.
• the unit When the unit is in one stage, it is possible to drop out the product seat and to disengage it on the discharge wall, which reduces the cost of the device. 5
• the introduction of the process of evaporation in two stages is more preferable. With two-stage cooking at the first stage at a temperature of 120 ° C, the concentration of alkali metal oxide in the range is not more than 225, not more than 230. Such a product is not yet saturated.
• the temperature of the unit is improved by cooling it with its original water.
• the filter is filtered, the aluminum solution after filtering with a concentration of (g / l):
• 20 120 ° ⁇ from the dispenser is directed to a moving filter cartridge from a polyamide wave secured to a filter of bulk type.
• the filter cartridge is kept at a temperature of 0 ° C by means of a continuous dispenser for the non-working part of the filter of the cold water with the valve
• the output of the product is 63 kg ($ 68.5 ⁇ ⁇ ⁇ ⁇ ))))).
• the product has a chemical composition in mass. B ⁇ - 25, ⁇ 1 2 0 3 - 37.5, 810 2 - 0.05, ⁇ 2 - 0.02; The rest ⁇ ⁇ ⁇
• the product is particularly safe. white color other material.
• the product is commemorative. - 13 - Pdam ⁇ 2.
• the crushed nepheline in the amount of 280.3 kg and the crushed juvenile in the amount of 521.7 kg are mixed with 335 kg of water.
• the resulting lattice is skewed by a rotating furnace at a temperature of 50250 ° ⁇ .
• the resulting product has a chemical ⁇ in ma ⁇ . $: He 2 0 - 36.5, ⁇ 1 2 0 3 - 43, 5 ⁇ 0 2 - 0.07, ⁇ 2 ° 3- ° '02 ” - 14 - Remaining - water in the connected form, with a small room with a humidity of $ 21.
• Product-_ white color is the other material. The product is commercially available.
• the crushed nepheline in the amount of 280.3 kg and the crushed lime in the amount of 490 kg are mixed with 330 kg of water.
• the resulting shear is rotated by a furnace at a temperature of ⁇ 200 ° ⁇ .
• __ ⁇ 0 2 - 0.05 ⁇ with a molar ratio of ⁇ réelle 2 0: ⁇ 1 2 0 ⁇ , 5 is vaporized at a temperature of ⁇ 35 ° C at a concentration of 375 g / l of the evaporator.
• An evaporated storage volume of 0.195 with a temperature of ⁇ 35 ° C from the outlet of the appliance is aimed at a moving filter from a large volume of filler.
• ⁇ __ The filter is cooled to a temperature of 50 ° C by means of a continuous dispensing of the non-working part of the cold water filter with a temperature of 20 ° C.
• the crushed yeafelin in the amount of 280.3 kg and the crushed lime in the amount of 521.7 kg are mixed with 335 kg of water.
• the third stage has a volume of 0.315 m 3 and is in the 2nd stage of evaporation; - 16 - 370 g / l ⁇ réelle ⁇ ⁇ and 0.25 g / l ⁇ 2 .
• the metal circuit is cooled down to a temperature of 95 ° C by supplying cold water to a non-working “fire”. Industrialization of the product, its separation from the mother’s feed and the recovery of the mother’s process for the leaching of the process 1-3 are similar *.
• 20 product price is 60 kg ($ 86).
• 25 is a solid and is commercially available.

Landscapes

• Chemical & Material Sciences (AREA)
• Organic Chemistry (AREA)
• Life Sciences & Earth Sciences (AREA)
• Geology (AREA)
• Inorganic Chemistry (AREA)
• General Life Sciences & Earth Sciences (AREA)
• Geochemistry & Mineralogy (AREA)
• Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
• Curing Cements, Concrete, And Artificial Stone (AREA)

Priority Applications (7)

Applications Claiming Priority (1)

Publications (1)

Family

ID=21616938

Family Applications (1)

Country Status (7)

Cited By (3)

Citations (3)

• 1985
  • 1985-08-22 DE DE19853590838 patent/DE3590838T1/de not_active Withdrawn
  • 1985-08-22 AU AU50193/85A patent/AU575223B2/en not_active Ceased
  • 1985-08-22 JP JP60504829A patent/JPS63500655A/ja active Pending
  • 1985-08-22 WO PCT/SU1985/000074 patent/WO1987001107A1/ru active IP Right Grant
  • 1985-08-25 HU HU855077A patent/HU198426B/hu not_active IP Right Cessation
  • 1985-10-01 IN IN694/CAL/85A patent/IN162818B/en unknown
• 1987
  • 1987-04-21 FI FI871735A patent/FI80437C/fi not_active IP Right Cessation

Patent Citations (3)

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