SU1198112A1 - Detergent for cleaning metal surface - Google Patents

Abstract

DETERGENT FOR CLEANING METAL SURFACE, containing oxalic acid, sodium tripolyphosphate, anionic surfactant and water, characterized in that, in order to increase detergency while removing rust, the agent contains as anionic surfactant. i. 13 TCSiiiK JbC (A5l ЕИБЛМЯТ УА. Active substance sodium alkyl sulfate primary fatty alcohols fraction C, pC, and additionally contains aluminum chloride and waste of lanolin production by oxidation of wool fat in the following ratio of components, wt.%: Sodium alkyl sulfate primary fatty alcohols fraction C (о C | g 10,0-20,0 Sodium tripolyphosphate, 5-5,0 Oxalic acid 0, 2-1,0 i Waste from production (Lanolin production by oxidation of wool grease 3,0-7,0 Aluminum chloride 1,0- 4,0 WaterTo 100 so eo

Description

The invention relates to detergents and can be used in various parts of the engineering industry, for example, in the boiler industry for degreasing metal surfaces from conservation lubricants, emul. SOLOVES and loosened impurities when preparing the surface of the undercoat.

The purpose of the invention is to increase detergency while simultaneously removing rust.

The table shows the formulations and test results of the proposed and known detergent.

Indicators

10, 5

0.2 3.0

1.0

ch84, 3 74.0 63.0 88.4 58.5

20

821

3.8

1,06,0

5.0

6.5

1.0

0,11,5 7,0

2.08.0

4.0

0.55.0

4.8

2.6

0.19

0.18

.five

1.9 to 100 10.9

The reaction medium, GOST pH 32-14-624, 0

. Ш1У-1.

Worker. Temper18-20 Ratura, C

Foaming - TU

33-10796-76 I

GOST 9.402-30

1-2

5-6

20-30

Waste from the production of lanolin (PLR paste) is an ointment-like mass, formed in the following way. Wool fat obtained from washing sheep wool is a raw material for the production of lanolin. It is subjected to oxidation with atomic oxygen in pressurized reactors. The oxidation products are treated with alkali and alcohol in order to separate the lanolin. After treatment of the reaction mass, lanolin, consisting mainly of esters of high molecular weight alcohols and acids, forms the upper layer in the reactor. It is drained, the alcohol is distilled off, and in

Continuation table

2.5 1.5

1.0

,

5.0

18-20 18-20

18-20

1-2

1-2

1-2

The composition is unstable

5-6 5-6

Washes bad

30 20-30

Do not remove - Ruslan - Removes solids under mechanical stress

The bottom layer is collected in a complex mixture of sodium soda salts of higher fatty acids fraction, wool socks, soda ash and water. This sludge is an PLA paste.

Pasta OPL is released according to TU 6-10-500-21-32. This is a greasy-like mass from light yellow with a grayish shade to a light brown color, no less than 15% of the total weight of substances, not less than 20% by weight of fatty alcohols, not less than 9% of extract water, not less than . 40% J mass fraction of volatile substances is not more than 10% mass of 5 I 1 dollars of alkali in terms of, 4-9%. mechanical impurities are absent. Aluminum chloride in this region has a stabilizer fuke. A detergent composition is prepared by simply blending the components without heating, and the components are loaded in any order. Water can be used as. distilled and °; The scientific research institute in the process of fffs foam, but then it settles and in the working composition it is restored very little. . After treatment with a detergent, the metal surface is rinsed with water, dried and stored. When stored under a shed or in a storage room after wiping with a cloth, the metal surface does not rust. 8112 Compared the effectiveness of these detergents can be seen that the proposed composition has a higher. detergent properties and, in addition, removes rust without the use of mechanical action. At the same time, the content of oxalic acid in the proposed formulation is minimal compared to the well-known tool. As a view from the table, degreasing and removing rust from the metal surface. g. . is not achieved when the component ratios are below the lower limit (at, 5 P) of the upper limit (example 5). In the first case, the composition has low detergent properties and does not relieve rust at all, in the second case, the composition is not technological, it dissolves.

Claims (1)

(54) (57) DETERGENT FOR CLEANING A METAL SURFACE containing oxalic acid, sodium tripolyphosphate, anionic surfactant and water, characterized in that, in order to increase the washing action while removing rust, the agent contains as an anionic surface of the active substance sodium alkyl sulfate of primary fatty alcohols of the C ₁₀ -C _{| 6} fraction and additionally contains aluminum chloride and waste of lanolin production by oxidation of wool fat in the following ratio of · components, wt.%: Primary fatty alcohol sodium sulfate fraction C (o -C | ₆ Trip sodium oliphosphate Oxalic acid Wastes from the production of lanolin by oxidation of wool fat Aluminum chloride Water 10.0-20.0 1,5-5,0 0.2-1.0 3.0-7.0 1.0-4.0 Up to 100