SORBENT FOR COLLECTING OIL AND OIL PRODUCTS, METHOD FOR PRODUCING SORBENT AND METHOD FOR COLLECTING OIL AND OIL PRODUCTS Russian patent published in 2006 - IPC B01J20/24 B01J20/30 C02F1/28 

FIELD: ecology.

SUBSTANCE: sorbent is produced during alkali processing of hydrolysis lignin with splitting of hard admixture particles, and neutralization of hydrolysis lignin suspension, which is then subjected to crushing, then crushed suspension is filtered to precipitation moisture level no more than 70%, received precipitation is sent for granulation, after that granules are sent for drying until moisture level of no more than 8% is reached, then these are subjected to milling down to particle sizes no more than 5 millimeters and final product is produced with varying granule-metric composition in form of non-fractioned powder with particle sizes no more than 1-5 millimeters, low-dispersion powder with particle sizes less than 1 millimeters, while final product is characterized by oil-absorbing capacity ranging from 300 to 600% and by time need to absorb polluting agent from surface ranging from 15 to 30 seconds. Method for collecting oil and oil products includes applying produced sorbent to polluted surface in form of non-fractioned powder and/or low-dispersion powder and/or granules with specific flow of sorbent on hard surface equal to about 80% of oil or oil products volume and on water surface up to 20%.

EFFECT: production of sorbent for cleaning surface of oil and oil products, having increased oil-absorbing capacity during little time in contact with polluted surface.

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