1. Effect of the chemical composition of aluminum oxide catalysts on the stability of their structuro-mechanical properties during heat treatment

   • Ya. R. Katsobashvili
   • N. S. Kurkova
   • T. S. Gracheva

   OriginalPaper Pages: 399 - 404

2. Separation of normal paraffins from kerosene-gas oil fractions by synthetic zeolites

   • N. F. Meged'
   • Ya. V. Mirskii
   • L. V. Borisova

   OriginalPaper Pages: 405 - 408

3. Oxidation of hydrocarbons — An economic way to produce petrochemical products

   • B. L. Moldavskii
   • V. K. Tsyskovskii

   OriginalPaper Pages: 409 - 413

4. Investigation of the concentration of the extract during the extraction of aromatic hydrocarbons by 1-nitro-2-methylpropanol-2 on a rotating ring column

   • I. N. Diyarov
   • L. M. Kozlov
   • R. R. Bureeva

   OriginalPaper Pages: 414 - 416

5. Problems of production concentration in the petroleum-processing industry

   • E. A. Shapiro

   OriginalPaper Pages: 417 - 421

6. Optimal design of multicolumn rectification units from a heat-balance and economic point of view

   • V. P. Maikov
   • G. G. Vilkov
   • A. V. Gal'tsov

   OriginalPaper Pages: 422 - 429

7. Effect of the potential of the solid phase on some properties of lubricating oils

   • G. I. Shor
   • I. F. Blagovidov
   • N. I. Kuznetsova

   OriginalPaper Pages: 430 - 434

8. Electron-donor-acceptor properties and the mode of action of some additives to oils

   • S. É. Krein
   • Yu. H. Shekhter
   • L. N. Teterina

   OriginalPaper Pages: 435 - 438

9. Mechanism of the stabilizing effect of motor-oil additives

   • I. F. Blagovidov
   • V. P. Lapin
   • G. I. Shor

   OriginalPaper Pages: 439 - 443

10. High-quality bases for condensed lubricants derived from low-molecular oils from secondary refining processes

    • E. G. Semenido
    • V. V. Nikitin
    • F. N. Ermolov

    OriginalPaper Pages: 444 - 447

11. Special features of the antioxidant effect of mixtures of organic sulfur inhibitors during the oxidation of oils

    • I. A. Rubinshtein
    • S. É. Krein
    • Yu. A. Markov

    OriginalPaper Pages: 448 - 454

12. The use of IR spectroscopy to study the reaction of motor-oil additives

    • A. B. Vipper
    • V. N. Bauman
    • G. S. Shimonaev

    OriginalPaper Pages: 455 - 458

13. Classification of engine oils for tractor diesel engines

    • S. G. Arabyan

    OriginalPaper Pages: 459 - 462

14. Nomogram suitable for determining the heat of evaporation of liquids

    • A. K. Chernyshev

    OriginalPaper Pages: 463 - 469

15. World crude oil production 1961–1970

    • D. I. Notkin

    Information Pages: 470 - 473