Aluminum nitrate nonahydrate → Rubidium nitrate

HRID 1257484

Reaction equation

HRID 1257484 reaction equation
[N+:1]([O-:4])([O-:3])=[O:2].[Rb+:5].O.O.O.O.O.O.O.O.O.[N+:15]([O-:18])([O-:17])=[O:16].[Al+3:19].[N+:20]([O-:23])([O-:22])=[O:21].[N+:24]([O-:27])([O-:26])=[O:25]>O>[N+:1]([O-:4])([O-:3])=[O:2].[Al+3:19].[N+:15]([O-:18])([O-:17])=[O:16].[N+:20]([O-:23])([O-:22])=[O:21].[N+:24]([O-:27])([O-:26])=[O:25].[Rb+:5]

Participants

5

Reactant 2

HCID 24567Aluminum nitrate nonahydrateHCID 25731Rubidium nitrate

Product 2

HCID 25731Rubidium nitrateHCID 26053Aluminum nitrate

Reagents, catalysts & solvents 1

HCID 962WaterSolvent

Procedure

An aqueous solution in which 4.86 kg of aluminum nitrate nonahydrate and 1.53 kg of rubidium nitrate were dissolved in 5.0 L of pure water was gradually dropped into 20.0 kg of a stirred silica sol solution having a colloidal particle diameter of from 10 to 20 nm held at 15° C. (TX11561 manufactured by Nalco Co., Ltd. (SiO2 content: 30 wt %)) to obtain a mixed slurry of silica sol, aluminum nitrate and rubidium nitrate. Then, the mixed slurry was aged by holding at room temperature for 24 hours. Subsequently, the mixed slurry was spray-dried with a spray dryer set to an outlet temperature of 130° C. to obtain a solid. Next, the resulting solid was filled to a thickness of about 1 cm into a stainless steel container with the top being open followed by heating in an electric oven from room temperature to 400° C. over the course of 2 hours and then holding at that temperature for 3 hours. After further heating to 580° C. over the course of 2 hours followed by holding at that temperature for 3 hours, the solid was cooled gradually to obtain a silica-alumna-rubidium support. The amount of aluminum was 11.5 mol % based on the total molar amount of silicon and aluminum, and the atomic ratio of (alkaline metal+½×alkaline earth metal+⅓×rare earth metal)/Al was 0.80. Specific surface area as determined according to the nitrogen adsorption method was 127 m2/g. The average particle diameter of the support based on the results of measuring with a laser diffraction particle size analyzer was 64 μm. In addition, the shape of the support was found to be nearly spherical based on observations with a scanning electron microscope (SEM).

Workup

  1. additionwas gradually dropped into 20.0 kg of a stirred silica sol solution
  2. customheld at 15° C.

Sources & evidence

ORD record
ord-fb3e26e2e9d74caab88e97b1cb311b8e
Source dataset
uspto-grants-2013_06
Patent number
US08461373B2

Linked notes

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