RU1792963C - Process for preparing lubricating oils - Google Patents

Abstract

SUMMARY OF THE INVENTION: A mixture of 3-25 parts by weight is used to produce lubricating oils. oil m.asla from 1 ma.ch. vulcanizates of rubber compounds or secondary rubber materials. The mixture is heated to 180,330 ° C at atmospheric pressure and a carrier gas is supplied in an amount of 0.2-4.5 l / min kg, followed by removal of oil from the reaction zone at 160-320 ° C. 4 tab.

Description

The invention relates to a technology for emitting lubricants.

Known methods for producing lubricants — iix materials by primary processing of oil using processes of heating, distillation, dearomatization

whether deasphalting, dewaxing, and

also by thermocatalytic processing - 1 plastic polymeric materials.

The disadvantages of these methods are the need to use scarce raw materials and vacuum, the complexity of the process, the high yield of the product, and low anti-wear properties. .

A prototype of the invention is a method for treating rubber and plastics 1, the essence of which is the processing of crushed waste to a particle size of 5p25 in the presence of a catalyst at a reactor temperature of 482-510 ° C and a pressure of 3 atm. The yield of the product is 25.46-62.26 wt.%.

The disadvantages of the method are the complexity of the process and the low yield of the final product.

 The purpose of the invention is to simplify the process and increase the yield of oils.

The essence of the invention lies in the fact that a mixture of 1 wt. vulcanizates of rubber compounds or secondary rubber materials and 3-25 m.h. petroleum oil and heated to 180-330 ° C at atmospheric pressure and supply of carrier gas in an amount of 0.2-4.5 l / min kg followed by removal of oil from the reaction zone at 160-320 ° C.

For the experiments, the oils listed in Table 1 were used.

Secondary rubber materials (BPM) based on rubbers were used as vulcanizates of rubber compounds: NK, SKIZ, SKD (sample 1), SKN-18 (sample 2), nayrite (sample 3).

The invention is illustrated by examples.

EXAMPLE 1. 9.6 parts by weight are introduced into the reactor. distillate mineral oil and 1 wt.h. secondary rubber materials (sample 1). Carrier gas (nitrogen) is then supplied in an amount of 0.6 l / min-kg. A mixture of distillate oil and secondary rubber materials is heated at 275 ° C for 40 minutes at atmospheric pressure and continuously withdrawing carrier gas and volatile products from the reactor. The resulting lubricating oil is removed.

-h Yu Yu Yu O SO

from the reactor at 275 ° C and sent for cooling to some. H :: # Fri-: /::. ::.-.-. Nosiggol gas: it is a mixing agent, it provides quick and effective renewal of the reaction surface, prevents local processes of polycondensation of the reaction mixture, it helps to reduce the partial pressure of low molecular weight hydrocarbons and other low-boiling compounds and to quickly remove them from the reaction zone. -. ; ,, .. ..--., ..,. Characterization of the obtained lubricant oil: kinematic viscosity at 100 ° С 8.4 cSt, viscosity index 153, pace

0

5

flash ratio 227 ° C, content, wt.%: carbon black 8.79; zinc oxide 0.42; no water; sulfur 0.25; mechanical impurities None; water soluble acids and alkalis None; acid number 0.008 mg KOH / g; coefficient of friction 0,057; yield on the feedstock 97.1 wt.% ..

Other examples of the method are presented in Tables 2 and 3.

 A comparative analysis (Table 4) shows4 that due to the essential distinguishing features indicated in the claims, the proposed method has advantages over the prototype; :

For m u lai z o b r t e n i - ;.

 A method for the preparation of lubricating oils of pu. by heating the mixture of the oil product with half a 20 measured material, 6 t and the same Shchi and s. the fact that, with. The goal is to simplify the process of u: increasing the yield; Mayel,: c; As a mixture ;. ;., use 3-25 ma with .h. Not a lot of oil and 1 /: No. :. ,:: - &: - F:,.: - 1. -i:; - ::. 25

 Physical and chemical characteristics of samples

 dual-base and base oils, as well as; .:

Used Mineral Oils (OiVM) -.

: SH

.x.; -; C rfА;:%: d ;;;.;. .. :: U {- -}:: -: - - - U n; g:; ; TABLE::;.: ..- ENDED IN WY; It is more process and characterization of products - lubricating oils,

parts by weight of vulcanizates of rubber compounds or secondary rubber Materials, which are heated to 180-330 ° C at atmospheric pressure and the supply of carrier gas in an amount of 0.2-4.5 l / min: kg followed by removal; oils from the reaction zone at

f if6d 3200c.:-; -;: -, s -: ;;; ;;:,. , -,; -: - /.

Table 1

Process conditions and product characteristics - lubricating oils

Continuation of table 2

::, Table 3

Comparative data showing the advantages of the proposed method over the prototype 1.

Name

proposed 2

purpose

Simplification of the process, increased yield, improved quality

target oil

The catalyst is not used.

The temperature in the reactor 180330 ° C

No need (pressure

atmospheric)

No chopping required

96.3-97.4 Petroleum mineral oils, including used mineral oils Vulcanized materials (waste) - vulcanized rubber mixtures p.2 4.5 l / min kg

Continuation

T blitz4

Way

 prototype

.JZLIILl ... .3.1 ...

Recycling plastic waste

lubricant product

The catalyst used is HCNO (formaldehyde). The temperature in the reactor is 482-510 ° C (900-950 ° F). A pressure of 3 atm is required. Fine grinding of the waste is required to the particle size passing through a sieve with a particle size of 5-25

25.46-62.26. Gasoline fractions

Plastic materials (waste)