SU1537661A1 - Initial composition for producing claydite - Google Patents

Abstract

The invention relates to mixtures for the manufacture of porous aggregates and can be used for the manufacture of expanded clay in the building materials industry. In order to reduce bulk bulk density, firing temperature and yield of fine fractions while maintaining the strength of claydite, the raw mix for making claydite contains, in wt.%: Clayey raw material — 96.5 - 98.0

residual product of oil products filtration of naphthenic base - 1.5 - 2.0

heavy hydrocarbons from oil refineries treatment facilities - 0.5 - 1.5. The residual product of filtration of naphthenic base petroleum products and heavy hydrocarbons from the treatment facilities of oil refineries are used at a ratio of (1 ÷ 3): 1, respectively. Expanded clay has the following properties: bulk density 350 - 450 kg / m ³

compressive strength 2.0 - 2.3 MPa

grain shape factor 1.15 - 1.25

firing temperature 950 - 980 ° C

yield fraction 0 - 5 mm / sand / 2.6 - 3.2 wt.%. 1 tab.

Description

one

(21) 4371608 / 23-33

(22) 11/13/87

(46) 01/23/90. Bulle 3

(71) Scientific and Production Association of Space Research

(72) T.K. Ismailov, I.M. Aliyev,

Rb Kuliev, E.K. Lmrakhov, K.R. Akhmedov, Z.D. Allahkuliev, D.S. Mehtiyev, A.A. To winters and MM Kamedov (53) 666.972.125 (088.8)

(56) USSR Copyright Certificate I 846532, cl. From 04 To 14/12, 1978.

USSR author's certificate number 1296538, cl. C 04 B 14/12, 1985. (54) RAW MIXTURE FOR MAKING CERAMSITE

(57) The invention relates to compositions of mixtures for the manufacture of porous aggregates and can be used for the manufacture of expanded clay in the building materials industry. With a bulk bulk reduction chain

mass, calcining temperature and yield of fine fractions while maintaining the strength of claydite; the raw mix for making claydite contains, May. %: clay raw materials 96.5-9B, 0; the residual product of filtration of naphthenic base petroleum products 1.5-2.0; heavy hydrocarbons from oil refineries treatment facilities 0.5-1.5. The residual filtration product of naphthenic base petroleum products and heavy hydrocarbons from refineries treatment facilities are used at a ratio of (1-3): 1, respectively. Expanded clay has the following properties: bulk density of 350-450 kg / me; compressive strength 2.0-2.3 MPa; grain shape factor 1.15-1.25; firing temperature 950-980 C; the yield of the fraction 0-5 mm (sand) 2.6-3.2 wt.%. 1 tab.

with

1C

(L

The invention relates to mixtures for the manufacture of porous aggregates and can be used for the manufacture of expanded clay in the building materials industry.

The purpose of the invention is to reduce the bulk bulk density, the firing temperature and the yield of small fractions while maintaining the strength of claydite.

For the manufacture of the mixture, clay raw materials of the following chemical composition, May, are used. %: SiO 54.15; A120E 17.6; Ge205 7.8; CaO 5.7; MgO 2.35; S03: 0.37; + 3.33; pp3,7.

The residual product of filtration of naphthenic base petroleum products is an earthy black clay mass in the pores of which polycyclic and alkylcyclic naphthenes are adsorbed, as well as aromatic aromatic substances, the content of naphthenic hydrocarbons is 46 May. %

The adsorbent through which the oil products of the naphthenic base are filtered is served by natural aluminosilicate without limiting its size and the molar ratio of Si02:. The ratio of the adsorbent: adsorp

from 1

Oh o

bent (petroleum) is (68-80): (20-32) May. % ..

The composition of the residual product filtration oil naphthenic base, May. %: SiO 42.0; A1g03 16.1; RegO, 2.6; CaO 2.5; K20 1.8; 1.0; MgO 1.5, water + other 2.5; naphthenic hydrocarbons 13.8; paraffin 6.2; aromatic 8.1; resinous substances 1.9.

Heavy hydrocarbons from sewage treatment plants represent a consistent mass of oil refineries, accumulating in the treatment plants of oil refineries and including mechanical mechanical oils, including sand and polymetallic impurities, as well as water in a ratio (May) (40-60) : (10-25) :( 20-25).

The initial clay raw material and the organo-mineral additive in appropriate quantities are metered into the clay mixer. The mixture is easily stirred, and then granulated and dried at 460 ° C for 20 minutes. After that, in the corresponding furnaces at 930-1000 ° C for 45 minutes, the resulting claydite is subjected to firing and swelling according to the known technology.

Examples of the composition of the proposed mixture and the properties of expanded clay are presented in the table in comparison with the known composition.

At high (over 650–700 ° C) temperatures in the process of obtaining claydite, residual filtration products of naphthenic base oil and heavy hydrocarbons are purified

content of components of the mixture, m as. 7

clay raw material (I) residual product of filtration of petroleum products of naphthenic base (II) heavy hydrocarbons treatment plants

distillation - residual oxide 98, 0 97.25

1.5

0.5

1.75 1.0

0

P

five

35

structures, naphthenic and paraffin hydrocarbons under the catalyzing effect of aluminosilicates are cracked, disengaged with the formation of a significant amount of hydrogen, which is a reduced reducing agent of iron oxides. Due to the reduction processes at 700-1000 ° C, the bulk density and the yield of fine fractions of expanded clay gravel are reduced.

Claims (1)

Invention Formula Raw mix for the manufacture of expanded clay, including clay raw materials and organic-mineral additive from refinery waste, characterized in that, in order to reduce bulk bulk density, burning temperature and yield of small fractions while maintaining the strength of expanded clay, it contains as an additive residual product filtration of petroleum products a naphthenic base on an aluminosilicate and a heavy hydrocarbon fraction of the treatment facilities of oil refineries, taken in a ratio of (1-3): 1 according to venno, with the following ratio of components, May. %: Clay raw materials 96.5-98.0 Residual product of filtration of petroleum products of naphthenic base on silica-alumina 1.5-2.0 Heavy hydrocarbons from oil refineries treatment facilities 0.5-1.5 97.0 1.5 1.5 99.0 98.0 laziness of petroleum products (III) - Ratio 11: 111 1: 3 Characteristics of aggregate fr.5-20 mm: bulk density, kg / m3350 compressive strength, MPa 2.05 form factor grain1,15 Firing temperature, ° С 960 Yield fraction 0-5 mm (sand), May. % 2.6 Table continuation 2.0 510 2.0 1.35 1150 7,8