SU565038A1 - Metalorganosilicon compound having adsorption properties - Google Patents

Description

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The invention relates to new organosilicon compounds, namely aluminum-manganese and organosilicon compounds, which can be used to adsorb low-molecular carbon hydrogen.

Organosilicon-organic compounds are known, for example, iron organo-oxyloxanes, which are active catalysts for the chlorination of hydrocarbons. However, the oligomers themselves — iron organosiloxane — do not have the adsorption properties. At present, the organosilicon oligomers, which have adsorption properties, are unknown.

The purpose of the invention is to expand the range of compounds exhibiting adsorption properties.

An organosilicon compound of general formula I is proposed.

{CeH581 (OH) 2. (0) o.5., H, 81 (OH) 2-, X X (O) o.5,, O, Mn} „,

where xy 0.1-0.5,

, 2, showing adsorption properties.

The compound of formula I can be obtained by a method based on the known reaction of the exchange decomposition of the monosodium salts of organosilantriols with a mixture of metal chlorides taken in certain ratios in absolute ethanol and consists of the following. The monosate of organosilantri-ol is dissolved in absolute ethanol and a solution of a mixture of metal chlorides in absolute ethanol is added dropwise with stirring. The reaction mixture is stirred for 2 hours, the precipitated sodium chloride is filtered off and the filtrate is evaporated under vacuum. After separating the powder, the powder is separated from the solution and dried in a vacuum desiccator over calcium chloride.

Example. To 8.88 g (0.05 mol) of phenylsilantriol monosodium salt, dissolved in 90 ml of absolute ethanol, is added dropwise with stirring a solution of a mixture of 1.33 g (0.01 mol) of anhydrous aluminum chloride and 0.13 g (0.001 mol) of anhydrous manganese chloride in 60 ml of absolute ethyl alcohol. The reaction mixture is stirred for 2 hours, the precipitated sodium chloride is filtered off and the filtrate is evaporated under vacuum. The separated powder is separated from the solution and dried in a vacuum desiccator over calcium chloride. I get 7.74 g (85.3%) of aluminum-manganesephenylsiloxane.

Elemental analysis of cHMteSHpoBaHHort} Compounds are given below.

Found,%: C 44.13; H 4.26; Si 16.49; MP 1.0; A1 5.8.

Calculated,%: C 43.6; H 4.27; Si 17.00; iMn 1.04; Al 5.1.

The resulting compound does not melt or sinter, etc., and temperatures up to 500 ° C. It dissolves well in benzene, acetone, ethyl alcohol, but does not dissolve in neutral ether and white spirite. In appearance, this compound is a solid of fine dispersion of light yellow color. For the compound obtained, the IR spectra were removed on a U, R-10 spectrophotometer in the region of 400-300 cm-1 with NaCl, KBr, LiF prisms. Characteristic absorption bands: Si - CeHs 1430; Si —O — Si 1020-1160; Al - O 700- SOO; Mn —O 490; Si-OH 1640-3450 cmOleg-er has a linear structure (the presence of absorption frequencies for the Si-CeHs bond is 1430, for Si it is -O-Si 1020-1160). This conclusion is also confirmed by its good solubility in organic solvents.

The resulting compound is tested for sorption capacity for ethyl alcohol. To study the sorption capacity of the oligomer, it is preheated in an oven at 120 ° C for 5-6 hours to constant weight. A portion of oligomer is placed in a desiccator, the lower part of which is filled with ethyl alcohol. After a certain period of time, the weight of the oligomer is weighed and the amount of adsorbed alcohol is calculated from the change in weight. The results are presented in the table, here are the results of studies on the sorption capacity of silica gel brand KSM.

Alumomanganesephenylsiloxane in sorption capacity exceeds silica gel (studied under similar conditions) by 1.5 times.

Claims (1)

Invention Formula Organosilicon organic compound of the general formula (fC.H, Si (OH) 2.v (Oro.s..C, H, Si (OH) 2-, X X (0) o.5,, 0, Mn} n, where l:, 1-0,5,, 2, exhibiting adsorption properties.