DD149867A3 - BASE OIL FOR FOAMSTUFF - Google Patents

Abstract

The invention relates to base oils for mineral oil-based circuit agents for the production of large-area concrete elements. The aim of the invention is to provide base oils for Schalmittel with groeszerer emulsion stability and better emulsifiability, the economy is to improve by the use of kostenguenstigerer oils. The task is to ensure with the help of selected oils and arteigener Paraffin shares the complete use value preservation of the finished products. The object was achieved by reacting a distillate or distillate mixture hydrogenated from sulfurous and paraffinic crude oil, on a Ni-Mo catalyst at high pressure between 100 and 300 atm, in the temperature range between 270 and 460 ° C, directly or after redistillation with a Cp Content of at least 40% by mass and within the limits of 250 to 450 ° C at least 90% by mass boiling, by addition of 0.02 to 1.0% by mass of an oeligen solution of a pour point depressurizer of the Paraflow type, used without conventional dewaxing process directly as a base oil for scarfing agents.

Description

12

24 * IY. 1979

Title of the invention

Base oils for scarfing agents

'Field of the invention

The invention relates to base oils for Sohalmittel, in particular for Schalmittel with high utility value properties used for the production of large-scale Betoiielemente v / earth.

These formwork agents can also be used in general concrete production

Characteristic of the known technical solutions

It is known that mineral oil fractions can be improved by the addition of depressors in their cold behavior, especially the pour point5. "It is also known that, however, only dewaxed distillates or" distillate fermenters are used for the preparation of Sohalmitteln as base oil. "Except the use of oil components is also the direct use of waxes and paraffins for the preparation of emulsifiable and non-emulsifiable Sohalmitteln known (See Reception in Soaps ~ Fats oils - Wchse Jg. 1o4 (1978) Issue 9.S. 25o)

H U. h / i!] I Ί Ü / ü - ·. I ";<\ 1 - f.: ...

212850

After that, wetting agents of waxes are either dispersions. with solvent! or aqueous emulsions. Since scarf oils have the property to penetrate into the surface of the concrete and thereby complicate a subsequent coating of the concrete surface with plaster or paint, one has begun to produce wax-based scarfing agents. Wax does not penetrate into the concrete surface. The disadvantages of these known technical solutions are, on the one hand, the provision of the necessary dewaxed distillate and, on the other, the technologically complex procedure of introducing (admixing) the waxes and paraffins present in solid form the most costly basic process stage of the production of lubricants, the dewaxing, in which the increasing demand for formicants generally burdens the mineral oil industry both economically and capacitively, are the disadvantages of direct injection. Set of waxes and paraffins for Schalmittelproduktion in the technical, work organizational (manual operations) and energy-consuming technology compared to the oil use justified.

Object of the invention 25

The aim of the invention is to provide base oils for scarfing agents with the same or higher utility properties, in particular greater emulsion stability and better emulsifiability, preferably for special applications and universal applicability, wherein the economy in the manufacturing process is to be improved by the use of less expensive oils.

Explanation of the essence of the invention

"The invention has for its object to develop base oils for, sohalmittel zxx , where selected oils are used and with the help arteigener paraffin shares the complete utility value preservation of the finished products is ensured, without emulsifying the production technology, the emulsifiability of the switching means is improved and important properties such as! Corrosion and storage stability are maintained.

Surprisingly, it has been found that mineral oil components * when using non-dewaxing distillates or distillate mixtures, if they have previously been subjected to special hydrogenation and treated with pour point depressors, fulfill all the requirements which are imposed on base oils for formicants.

According to the invention, the distillate or distillate mixture with a C content of at least 40 mol / l and boiling point between 25o and 45o ⁰ C to at least 9o Ka ₆ - $ boiling as the base oil used * to this is a produced from sulfur and paraffinic petroleum distillate fraction refined or a distillate mixture in the hydrogenation at loo to 3oo atm. "and a temperature of 27ο to 46o ⁰ C using Ki-Mo catalysts, so that the raffinate directly or after redistillation a C content of at least 4o Ma". - ^ has ,,

The additization of the thus obtained distillate or distillate mixture with the Paraflow type depressor is preferably carried out in ΊΌίπά one on average. 2o to 7oigen oigen.Lösung in an amount of o _t o2 to 1jO & »* - ^c /«> preferably o _s 1 to Oj25 Ma _o ~ ^ »The Basisöllcombination invention is according to known technologies and known -.Rezepturen to formulate compounds

- ' ⁴ V 2 128 50

embodiments

The invention will be explained in more detail below on some embodiments.

example 1

(Non-emulsifiable scarfing agent) To 82.5 YoI .- ^ of the base oil obtained by distillation of sulfurous and paraffinic petroleum, hydrogenation of the distillate at 25o atm and a temperature of 415 ⁰ C using Ni-Mo catalyst and redistillation of the Raffinates, so that a distillate with the boiling point of 29o to 370 ⁰ C boiling and a C content of 52 Ma · - ^ won, are

0.5 mole% of a depressurizer, 4.0 mole% of a fatliquoring agent, 13% oil of a mineral oil raffinate, added in any order and optionally mixed with heating,

Example 2

(emulsifiable scarfing agent)

To 88.5 YoI. - ^s fi> the base oil obtained by distillation of sulfur and paraffin-containing petroleum _f hydrogenation of the distillate fraction at 27o atm and a temperature of 4o5 C using Ni-Mo catalyst, so that a raffinate having the Siedelage of 26o to 35o ⁰ G was boiling and a C-content of 55 Ma.-5 ^ won, are o, 5 YoI .- $ of a Depressatörs,

• 6, o YoI * -5S of a nonionic, anionic. - Emulsifier, 4 _f o YoI. ·> $ Of a fatliquor, 1 * 0 YoI. ~ fa water

added in any order and optionally mixed with heating.

This concentrate emulsion is to be homogenized in a ratio of 1 to 5 parts (parent emulsion to water).

Bs shows that with the use of the base oil combination according to the invention for Schalmittelfertigung a real intensification and rationalization in the petroleum-processing industry is achieved because the saving of Eatparaffinierungsstufe a significantly favorable effect on material and energy costs, better use of raw material Eölstoffes fuel and a significant Capacity expansion for the production of high quality lubricating oil base oils obtained

· becomes" ... · . '.

Furthermore, in the production process of emulsifiable scarfing agent with the base oil according to the invention, an improvement of the homogenization process and in the finished product an increased service life of the emulsion occurred. The non-emulsifiable scarfing agents have an improved release effect in the sintering process due to the oil content of the paraffin portions inherent in the base oil Possess surface texture.

Claims (1)

212850 -β- • invention claim Base oils for scarfing agents used for the production of large concrete elements, based on mineral oils, characterized in that one of sulfur and paraffinic petroleum, on a Ni-co-catalyst at high pressure between 1oo and 3oo atm (1o - 3o M Pa), - in the temperature range between 27o to 46o ⁰ C hydrogenated distillate or distillate genic directly or after redistillation with a C content of at least 4o Ma .- $ and in the limits of 25o to 45o ⁰ C to at least 9o Ma, -5ε boiling by the addition of o, o2 to 1, o Ma .- $ preferably o, 1 to o, 25 Ma · - ^ an oily solution of a pour point depressor of the type Paraflow, used without conventional dewaxing directly as a base oil for switching agents and with other known components is compounded in a known manner.