DD267258A1 - METHOD FOR PRODUCING CONDITIONING SOLE - Google Patents

Abstract

The invention relates to a process for the preparation of conditioning oils from altoels. According to the invention, 35 to 75% by volume of turbine oil is mixed with 65 to 25% by volume of transformer oil, treated with 0.3 to 3% concentrated sulfuric acid, neutralized after settling and separation of the acid slurry with 0.1 to 1% hydrated lime, with 0 , Mixed 2 to 1.5% bleaching earth and filtered. The advantages of the proposed technical solution are a low consumption of excipients, the applicability in existing plants and the high quality of the conditioning oils produced.

Description

-2- 267,250

Ausführungsbelspiele

The invention will be explained in more detail below with reference to some embodiments:

example 1

\ 2m ³ e \ nes enAwässerten and entschlammten Tmb \ nana \ xo \ it with e'möt viscosity of 33,8rr, rc \ ^l / s at 50 ⁰ C and ³ AO m and a dehydrated entschlammten Transformatorenaltölei with Ainet viscosity of 7 3mm ² / s at 50 ° C are ii 'a container mixed and treated with rolling for 20 minutes with 400kg of 95%' sulfuric acid with rolling.

After a settling time of 16 hours, the Sa'uresch / amm separated, the Saiieröl heated to 65 ° C, neutralized with 200 fco hydrated lime , then heated to 95 ° C u id 300kg bleaching earth added, mixed and filtered.

This gives 21.2 m ^{3 of} a pale Konditio / .iörungsöles, which has a viscosity of 15.8 mm Vs at 50 "C.

Example 2

16m ^{3 of} a dewatered and degummed turbine oil with a viscosity of 22.1 mm ^? / s at 50 ^c C and 6 m ³ of a dehydrated and mixed with a entschlammten TTanstormalorenaHöles ViskosiVatvone.emm '/ sbeiSO'Cwoiden in a vessel and treated under air with rollers 20 minutes with 150 kg of 95% sulfuric acid. After a AbseUzeit of A6 hours w \ rd of SauvescWamm separated, except that oil aulgeheut at 55 ° C, neutralized with 35 kg KaWhvdrat, then aul 85 ⁰ C and 100kg aulgeheizt bleaching earth added, mixed and nitrided. One receives 7. \ _; SSM ³ of a bright Konditioniorungsöles that emeViskos \ tätvon15,3mm ^J / SBE \ 50 ⁰ C autweist.

Claims (1)

A process for the preparation of conditioning oils from waste oils, characterized in that 35 to 75Vol .-% dewatered and de-aerated turbine oil having a viscosity of 20 to 40mm ² / s at 50 ⁰ C with 65 to 25 vol .-% dewatered and delaminated Transformatorenaltöl with a Viscosity of 6 to 10mmVs are mixed at 5O ⁰ C, the mixture is treated with 0.3 to 3% concentrated sulfuric acid at temperatures of 10 to 40 ⁰ C 10 to 30 minutes, after settling and separating the acid sludge, the sour oil at 50 to 70 ⁰ C neutralized with 0.1 to 1% hydrated lime, then mixed at 80 to 98 ⁰ C with 0.2 to 1.5% bleaching earth and filtered in a conventional manner, Field of application of the invention The invention relates to a process for the preparation of mineral oils which can be used for conditioning hygroscopic salts and fertilizers. Characteristic of the well-known Ctando of the technology It is known to use conditioning agents of different origin and composition to prevent the co-baking of hygroscopic salts and fertilizers. Thus, inter alia, higher fatty acids, their salts and derivatives, aryl sulfides, alkyl sulfonates, higher diols and polyols, ethylene oxide adducts, terpene hydrocarbons and complex iron cyanides directly, in solutions, in the form of emulsions or as dispersions usually in amounts of from 0.01 to 0, 1%, based on the salt or fertilizer to be hydrated as conditioning agent. The conditioning agents are contacted via the saline solution as well as directly with wet or dry salt. According to DE-AS 1084289 it is known to use mineral oils as conditioners. In DE-AS 2154416, an emulsion of Fbttsäureaminen, mineral oil, magnesium chloride and water wiid described marketed as conditioning agents at 100 ° C with the hydrc to _r!, Übierendon salts whose residual moisture content is 0.2 to 0.6%, in contact becomes. In DD-PS 202859 a stable emulsion of waste fats, Abfallölgemisehen, emulsifier and water is described, which is used as a conditioning agent. The disadvantages of the technical solutions proposed so far are that these conditioning agents usually consist of very complicated composite solutions or emulsions of many components whose production is not always easy. Moreover, most of these conditioning agents contain water, which has a detrimental effect on the application. Furthermore, the treated salts are contaminated by the ingredients of the known conditioning agents. Object of the invention OBJECT OF THE INVENTION Is the cost-effective production of conditioning oils from available feed products with low technical, technological and Hiffsstoffaufwand. Explanation of the essence of the invention The invention is based on the object to treat waste oils in existing plants by suitable process design such that quality-appropriate solvent and water-free conditioning agents are obtained. According to the invention, the object is achieved by dissolving 35 to 75% by volume of dewatered and de-aerated turbine oil having a viscosity of from 20 to 40 mm at 50 ° C. with 65 to 25% by volume of dewatered and de-entrained transformer oil having a viscosity of from 6 to 10mmVs at 50 ° C, the mixture is treated with 0.3 to 3%, preferably 0.6 to 2% concentrated sulfuric acid at temperatures of 10 to 40 ° C for 10 to 30 minutes, after settling and separation of the acid sludge the sour oil at 50 to 70 ⁰ C, preferably 55 to 65 ⁰ C neutralized with 0.1 to 1% hydrated lime, then at 80 to 98 ° C, preferably 85 to 95 ° C rtiit mixed with 0.2 to 1.5% bleaching earth and in is filtered in a conventional manner. The advantages of the proposed technical solution consist aarin that can be made from available and inexpensive raw materials with low technical, technological and auxiliary materials in existing equipment quality conditioning oils. The conditioning oils produced by the process according to the invention have a high hydrophobicizing effect at low application rates. The previously customary separate workup of turbine oil and transformer oil required a high expenditure on equipment and excipients. In the workup of Ausgangsöte in the mixture would have been to achieve the required quality an excipient in at least the same amount as in the workup of the individual components to be expected. Surprisingly, it has been found, however, that a significant reduction in the consumption of adjuvant occurs during the mixture work-up.