SU345763A1 - Method of preparing white reinforcing agent - Google Patents

Description

The invention is pending to the technology of producing white carbon black, which is used as a filler for SNIP. rubbers, as well as can be used in campus 1) P with rubber industry, will have: x in the production of plastic, varnishes, paints, leather substitutes.

A white carbon black preparation, consisting in that a solution of an ethyl acetate is treated with a solution of ethyl acid and a gel of silica gel, which is then dissolved, decomposes heating to silica.

Na.SiOs + 2HCl- 2NaCI + H2SiO3

The resulting white soot has a BcpxHOCTij content of up to 100 m / g by adsorption of phenol, pH 6-6.5, the content of sodium chloride from the finished product to 2% and the content of the basic substance (SiO2) up to 85%. By zti.h; Shown. t. white carbon soot co.teno T-6-11 -37-68 lic corresponds to the brand BS-280. while there is a low specific surface area of white carbon black up to 100 M- / G due to phenol adsorption; the difficulty of washing white soot from the chloride content of 1 atri filter press; low T; the percentage of oenopic product in psochrept is on SiO2, since the acids are separated from the ferry, silicon acid is worse than the whole equipment must be made in acid, with a pyrite; due to the filtering of the P1 pellet and washing it is very low filtering; k) with () bcc) of the precipitate of cremic acid, which drastically decreases prostate filters;

5 According to the proposed method, sodium silicate is treated with ammonium cc.ibio, nitrogen is used K) acid 11, 35-50 ---:; i1 a) and penta) and CPU And n the process is 5 15C. White with de 1) posture is taken; 1 ture of 20 (i m- / g but) sorption of phenol, P 7--8,5 and prevent the formation of a lane; 1 g; .

. K;) l ;;; e1 number; - li, silicate solution with beats. weight 1.0-1 to 1.08 was isolated with a solution of salt am.mmo11i, an example of ammonium nitrate with K01; a period of 30-50%, n deposition of ve.1} L at r. thorough repentance; baths.

Na.SiO +, Yuz-r2H "O-, -g --0-b2Nn., SiO,

11 ° C, the precipitate is filtered off with the spray; rumination of water from the nitrogen content of sodium cacho is rotated with water. The solubility of hacoz 11) and soba tat b7.5 g per 100 g of water, by a poet} (jTMbiBi y p) gadfly 1 quickly quality) 11th. PAL1: the ammonia in the solution loosens the precipitate of kg; emfluoric acid filtering due to its continuous release. It increases

sediment filtering capacity, which increases the performance of filters. The process of washing the sediment from salts takes place evenly over the entire surface of the sediment, and not in its separate sections due to uniform gas evolution and porosity of the sediment structure. High-quality washing of the precipitate from the salts improves the quality of the soot. The washed precipitate from the filter serves for drying. The resulting soot but this technology has a specificity of 1% on the surface by adsorption of phenol up to 200 m- / g, RP 7- -8.5, sulphate content up to 0.05%, iron oxide n aluminum up to 0.1%, nitric acid14) natrn up to 0.2% and with () kept 1e 1slot 11 in terms of NHj to 0.4%. The product complies with the requirements of Specifications 6-18-37-68 of the BS-280 brand.

Form m u l and n 3 o b r with t e n i

The method of obtaining white soot by treating sodium silicate with an inorganic pc1-entrant followed by washing with cyniKoii and calcining the resulting precipitate with silica filament, as well as with the poor quality of the product, the inorganic reagent) ammonium salt is ammonium salt, for example, nitrate, .35-50% concentration and nioi, oss are iri o.