DE1594587A1 - Organobentonite-based lubricating grease and process for making the same - Google Patents

Description

-2% 56.6-

Organobentonite-based lubricating grease and process for

Manufacture of the same,

It is known that fats form on the basis of organobentonite (organophilic bentonite) lubricant that can be used as a result are characterized by the fact that they are practically non-meltable, making them particularly useful for lubricating machine parts that are exposed to high temperatures, such as oven doors. Storage of drying devices, as well Storage of vehicles that reach high speeds.

It is also known that these fats are quite high Have resistance to mechanical work.

Nevertheless, the fats mentioned have two fundamental deficiencies

1) The state of lubrication of the organs treated with the fats, especially in the case of those in motion Storage is not always entirely satisfactory as the Balls or rollers of the bearings mentioned after more or less long periods of operation, even if they are not excessively high temperature are almost "dry" · These, even in the Phenomenon mentioned in the literature (see CJ "Bauer Manufacture and application of lubricating greases, pp. 743 and 747) can be determined immediately by one industrial bearings disassembling or easier by removing the bearing ASTIf naels, according to the standards O I263-53T

-. Running tent from 6-12 car doors. below. J.

009849/1506

2) The usual soap-based greases The anti-rust effect is exerted on organobentonite-based greases very low, taking into account the space available and the type of mineral oil are.

To eliminate or reduce the specified defects studied and tried numerous fat compositions. To the simultaneous increase in lubricity and rust protection In reality, various types of metallic soaps were and are usually used to contain fats on an organobenton base added in various ways will «Indeed be durci ?. the addition of such soaps the Schaler— as well as the tenderness of fats on organobentonite base is improved, however, this generally increases the drop temperature the fat «affected and hers too Resilience to mechanical work is reduced.

The influence of soaps or fats containing soaps on the properties of organobenton fats have now been studied in detail by the applicant, using calcium, sodium, lithium and aluminum soaps. It turned out that the organobentonite "soap mixed fats" have a well-defined dropping point depending on the type of oil "de" production process and the proportion of the constituents, ie "Kleist" or rather like the organobentonite-based fats alone are infusible Fall the ¥ ideret ^ £, € sfäl £ igk®it reduced against mechanical work,
Ss is also known that d% ae h® ± SxrwSrmun ^ a Gewiscfc * e from

009849/1506 __, _

«2- ^BATH ORIGINAL

AiitelUhYoa orgaaophllea Bentonite, Mineral “81 and Lithiuaeeif * is obtained under ventilated conditions in fat, the dropping point of which is about 200 ° C. How let out of t oiling Tabell · I er.ichtfcich, erhllt "at this · 1 _β fat" it is a "well-defined drop point, since" • I- _a < »it unt" r die.e * Geeieht.punkt etark of the F.tten a «f aue.ohlie.eiicher Orffanobentonitbaei. unter.oheidst. eelbat when di. Amount de. Or * anobentonite. More than that of the third case of Lithiu.at.arat, however, the wideretand.fMhiekatt gg _9n «.chani.che work is not affected

009849/1506

BATH ORIGINAL

90SI / 6V8600

the baaia of lithluaetearate and orranabentonite

Zuaaamenaetstu & c «n

depth

Orgattobentonite Lithiumatearate

OrgaAobentoni t lithium tetearate 8 *;

90 *

separate bed atsjE & dteile

Orgwaobentonite 3 * t lithium tearate 7%, 0 ·!

Organobentoni t Lithitnaatearate

Organobentooite 5 * » Lithium atearate 5%, oil

Lithiweatearate

Orffaaobeatonlt 7 * · lithium ether rate J%; OeI

Orf ^ ziobeatonite Lithite matearate

0 · 1

210

327

Slndrlnfjtiefe 60 double

-I- 223 dm 195 d « 220 dam
■ 217 dam 210 dam 195 dam 285 dam 280 dam 230 dam 225 dam

363 dm Penetration depth naoh 100,000 double «chiX-

Dropping point

i 310 dam I 302 dam j
i 282 dam 307 275 dam 295 350 Hi-i

185OC

188 * C

198 ^e C 200 ° C 200 ° C 25O ° C

Au · the following tab «ll · ZI let da · Var_ * Terhalten and dl · yid» rata_d «ablei * k» it gf #; «n work τοη Sen_i« rf «tt« n on the Baal · τοη Caloiu * -, Alu_iniu_-, Natrius- and Li- ^ hiuaaaif · and on the Baal · τοη organobentonite bar. ^:

OÖ984Ö71SO-

άη ORlGiNAt

-T .τ. 2

Separately · Fat · With different soaps Zusaaaense 13

- penetration penetration depth drop point

• indring-fiefe after 100,000 deep aaeh 60 Double

Dropping point after dea Sehaelsen

^ Caleiuafett 10ft.

4> Organobentonite fat 1

*** Aluainiuafett 7it-ig

txt Organobentonite fat 1

^m Soda fat

Lithiom grease

5O5 (280 daa 287 daa

5Oi6 293 there Above 50 * 277 there 360 285 there 320 225 there 245 a 312 daa a 303 daa a 280 daa a 220 daa

26ο σ

231 ⁰ C

270 · 0

210 »C

liquid b «i Rauat« ap «ratu:

184 «C

200 «C

inaccessible

-6-

Apparently the mixtures, with the exception of jetter old lithium soap and that old sodium soap, are with regard to the moisture effect not reversible

In fact, for the mixture of calcium soap, the dropping point, which is initially above 200 ° C, drops to 65 ° C, while the fat old Aluainittaeslfe liquid even at room temperature is. Resistance to work is also never high, auagenoa- »En for the fat, which contains Galciua or Lithium soap.

The subject matter of the invention is soaking fat sauce compositions which, in spite of improved visibility * and rust protection, do not have an effect on organobentonite-based sheep fat. due to the lowering of the drop point and the ability to work are impaired.

The invention also has a method of making them Schaierfettzasaaaensätze sua object · It has been found that the above result can be achieved by preparing fats based on organobentonite according to the following explained modalities is achieved, which fats have more or less large proportions of alkaline earth metals Monocarboxylic acids old 16 to 18 carbon atoms, preferably of stearic acid, as well as alkaline earth metal salsums of monocarboxylic acids old 1 to 8 carbon atoms, preferably of Acetic acid.

After the method according to the invention, the procedure is as follows

About half of the MineralBle will be used at room temperature a Monooarboasture ait 16 to 18 Xohlenetoffatoaen, one Monocarbonic acid from 1 to 8 carbon atoms, an oxide of an alkaline earth metal and an organobentonite are added. There·

BATH ORIGINAL

The mixture is finely ground until a homogeneous mixture is obtained, the methyl alcohol or acetone or another of the dispersants commonly used to bring about the swelling of the organobentonites in an amount of clay 0.5-3 percent by weight, preferably 1.5 percent by weight ₍ based on the weight of the end product. The heating of the mass is then started with stirring and the addition of the second half of the mineral oil The product obtained is ground until it has the desired fat appearance.

In the following table III the results obtained in a series of tests with four fat escapes are given.

0098 AS / 15 0-6 -8th-

BAD OHlGIHAL

90S 176 1 8600

Properties of fats A-B-C (with highly viscose oil)

Zui

lensositioni

Orffanobentonite Calsiuaatearate

Caloium acetate,

Mineral oil (high viscosity) initial penetration depth Penetration depth after. 60 double hitting Sindrinctiefe after. 100 * 000 double aehlXgon Elndrla ^ deep close to 200,000 double stripes Elndriactiefe naoli 300 * 000 double halves Penetration depth after 100 levels "Shell Roll Test" penetration after 200 hours "Shell Roll Test" penetration depth aaoh 300 hours "Shell Roll Teat" I drop

O ^ Lagervereuoh ASTM (6 hours 220 ° C)

3
135t

7% 5 * & ; 87 * 3 * 82 * I8O-I9O dam 82 * 82 * 200-205 dam I8O-I9O dam 230-240 dm » 225-230 daai 205-210 dam 190-290 dam 235-245 daas 230-235 dam 200-220 dam 200-210 dam 245 «250 dam 235-265 dam 235-240 dam 200-210 dam 250-255 de 270-275 dam 26-265 dam 300 dam 250-255 dam 28O-29O dam 305 dnm 320 dam 285 dam 300 dam 315 dam 320 dam 308 then 3IO dam 320 dam unspeakable 310 dam 315 dam us ehaie 1 zbar 0.8 * _ » inaccessible unsohaiel sbax 1* CO 1.* -9-

Di · ait 1, 2 and 3 rewarded, according to the invention

■ 1 ··· η method prepared fatty oyster, which pure are given by way of example and not by way of limitation, have properties inherent in soap-based fats

and are fusible at the same time as the ait h rewarded samples, since only oil and organobentonite (Benton * 3 *) contains.

The cattle fats produced by the process according to the invention allow in practice some problems with regard to the lubrication of organs which are exposed to high temperatures, in particular of bearings on motor vehicles and disk greases which are used for racing purposes or at least under drastic conditions the Sehaleraittel is exposed · ongoing mechanical stresses in Teaperaturen of fiber 200 ⁰ C for. In any case, in practical tests, liquefaction and leakage of the lubricating grease from the storage area of the bearing never have the following detrimental effects on the braking properties or, in the extreme case, a complete lack of lubricating grease in general anti-friction bearings old all poles resulting from the operation of these parts without lubricant shown·

-ίο- original ^bathroom

0.09849 / 1506

Claims (1)

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