SU749878A1 - Antiicing agent - Google Patents

Abstract

Parent Patent disclosed use of an anti-icing and anti-adhesive agent consisting of (1) a film-forming water-repellent hydrocarbon component (I) contg. COOH gps., hydroperoxide decompsn. prods., or -SO3H or P-contg. gps. and(2) a water-repellent solvent, (II), having pour point below -30 degrees C and flash-point above 55 degrees C. In present Patent (I) is a distn. residue (I'), obtd. in pyrolysis of petroleum and petroleum fractions after distilling off hydrocarbons volatile at 150-180 degrees C, and consists mainly of aromatic hydrocarbons which are akylated in a way such that av. atomic ratio C:H 1:0.8-1.2 and av. atomic ratio Aliphatic: Aromatic is 1:0.5-2.5. Solvent component can be omitted when pour point of (I) is below temp. of use. The agent prevents freezing of loose materials, esp. of brown coal, ores and building materials, and adhesion of high alumina-contg. rubble or adhesive goods to solid surfaces. (I') is cheap and has no functional gps.; its liquidity simplifies mixing; anti-icing and anti-adhesive agent has a low temp. coefft. of viscosity.

Description

.-..-one

The invention is intended to combat the freezing of bulk materials to the container walls during transport.

Known anti-icer containing, wt.%:

Formic acid

ammonium 20-26,0

Acetic acid

ammonium20-18,0

Propionic acid

ammonium 0.5-12.0

Oily acid

ammonium0.5-8.0

Valerianic acid

ammonium 0,01-0,4

Capronate

ammonium 0,01-0,4

Ammonium salts

Dicarbonic

acids 0.05-0.3

Organic

solvents 0.01-0.05

.Water Else

The composition is introduced in an amount of 0.31, 5% by weight of the bulk material IJ.

The disadvantage of this anti-icing agent is the relatively high corrosivity, as well as the precipitation of salts contained in it during storage.

A defroster for bulk materials is known, which contains an oil refining product and a heavy oil residue. As a product of refining oil, it contains light gas oil catalytic cracking of oil in the following ratio of components:

ten

tov weight.%:

Light gas oil

catalytic

oil cracking 90-98

Heavy oil

residue 2-10 15

The composition in the amount of 1% is applied to bulk materials, for example, coking coal 2.

However, such a defroster is not

20 prevents the frosting of matter to the walls of containers during transport.

The purpose of the invention is to prevent freezing of bulk materials to

25 walls of containers during transportation.

This is achieved by the fact that, as a product of oil refining, it contains a residue formed after the distillation of petroleum pyrolysis products from distillation.

Claims (2)

30 hydrocarbons boiling at 150-180 ° C, and additionally contains a solvent selected from the group comprising the clarified kerosene fraction with a boiling point of 18O-250 ° C, the washing kerosene fraction with a boiling point of 180-350 ° C, the fraction obtained from the dewaxing of oil molecular sieves, a gasoline fraction with a freezing point below minus 30 ° C and a dystyl Zion residue formed during the reflux process, Hrj the following ratio of components, weight,%: Residue oil pyrolysis 10-90. Solvent Rest Example 1. The residue after distillation of carbohydrate boiling at 150-180 ° C: oil from the pyrolysis product of oil with a hardening temperature of minus 38 ° C and a density of 1.06 g / cm with a C: H ratio of 1: 1.02 and H: Arom. equal to 1: 1,4, mixed with past kerosene in relation to (66%) 50:50. A mixture with a density of 0.93 g / cm and a freezing point of minus 50 ° C, which is applied to the inner surface of the container, is obtained. With a capacity of 20 g, the mixture consumption is 5 kg. A strong hydrophobic film is formed on the surface, which protects the material against walls. Examples 2-3. An anti-icer is prepared analogously to example 1, at a different ratio of the distillation residue of the pyrolysis product of oil and other solvents. Results are given in the table. Indicators Composition Distillation residue of petroleum pyrolysis product, wt.% 70 30 Solvent, wt.% 30 70 Specific weight of distillation residue, g / cm 1.1 1.06 Continued table. The ratio of C: H atoms in the residue is 1: 0.98 1: 1.09 The ratio of oiAMtv atoms. 1: 1.1 1: 2.1 The specific gravity of the mixture, g / cm, 0.98 0.87 Temperature of freezing of the mixture, Cminus 25 minus 70 The resulting compositions are applied to the inner surface of the containers by spraying. Claims of the Invention Anti-icer for bulk materials based on a petroleum product, characterized in that, in order to Prevent an example pellet of 1 materials to the walls of containers during transport, it contains as a petroleum product the residue resulting from the distillation of bales from petroleum pyrolysis product hydrocarbons at 150-180 ° C, and additionally contains a solvent selected from the group containing the clarified kerosene fraction with a boiling point of 180-25СгС, the fraction of the corresponding kerosene with boiling point of 180-350 ° C, fraction obtained from the dewaxing of oil by molecular sieves, the Senain fraction with a freezing point below-minus, and the distilled residue resulting from the reforming process. With the following ratio of components, wt.% {Oil pyrolysis residue 10-90 Ras + liter Ostgnsnov Sources of information taken into account during the examination 1. Author's certificate of the USSR 332119, cl. From 09 to 3/18, 08.06.70. 2. Authors certificate of the USSR 519467, cl. From 09 to 3/18, 05/17/74 (prototype). .