RU2215773C1
|
|
Oxidized bitumen production process
|
RU2214384C1
|
|
Method of absorbing hydrocarbons from gas-air mixtures
|
RU2219257C2
|
|
Method of recovering heavy and nonferrous metals
|
RU2205689C1
|
|
Method of preparing high-silica zeolites
|
RU2213129C2
|
|
Exhausted lube oil refining method
|
RU2199574C1
|
|
Chemical marker
|
RU2188851C1
|
|
Method of refining spent lube oils
|
RU2188850C1
|
|
Method of refining spent lube oils
|
RU2189441C1
|
|
Method of oil deposit development
|
RU2215822C2
|
|
Composition preventing asphalt-resin-paraffin deposits
|
RU2214396C2
|
|
Acetonitrile synthesis method
|
RU2182849C1
|
|
Adsorbent for hydrocarbons from gas-air mixture and method of manufacture thereof
|
RU2179600C1
|
|
Apparatus for producing fibrous materials from thermoplast
|
RU2180661C1
|
|
Method for production of epoxide compounds
|
RU2188816C2
|
|
Method of recovering acids from hydrocarbon mixtures
|
RU2180672C2
|
|
Lubricant for steel ropes
|
RU2188157C2
|
|
Method of recovering thorium from aqueous solutions containing rare-earth metals
|
RU2182704C2
|
|
Method determining content of metallic porphyrins in oil and oil refining products
|
RU2177838C2
|
|
Coal flotation collector
|
RU2160302C1
|
|
Method of purification of oil products from sulfides
|