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2 572 532

(13)

(51)

IPC

C08B5/02(2006-01-01)

C08B5/06(2006-01-01)

C08B17/04(2006-01-01)

(21) (22)

Application

2014140390/05, 2014-10-06

(24)

Start date

2014-10-06

(22)

Actual filing date

2014-10-06

(45)

Published

2016-01-20

(72)

Inventor

Nugmanov Oleg KagarmanovichGrigor'Eva Nadezhda PetrovnaNusinovich David SukherovichLutfullin Ruslan Rishatovich

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Institut Po Neftepromyslovoj Khimii"

METHOD FOR OBTAINING CELLULOSE NITRATES Russian patent published in 2016 - IPC C08B5/02 C08B5/06 C08B17/04

Abstract RU 2572532 C1

FIELD: chemistry.

SUBSTANCE: method for obtaining cellulose nitrates includes cellulose nitration and mechanical-structural processing in the process of nitration in double-screw apparatus, on two connected in parallel way shafts of which placed are alternating forcing screw and milling cam nozzles, removal and recuperation of wasted acids, stabilisation of cellulose nitrates.

EFFECT: method is efficient and economical, because makes it possible to reduce duration of nitration and stabilisation process, exclude stage of milling, obtain cellulose nitrates of wide assortment of necessary quality by physical-chemical indices, homogenous throughout the volume, to apply fibre of bast-fibre cultures and miscanthus as cellulose-containing raw material.

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RU 2 572 532 C1

Authors

Nugmanov Oleg Kagarmanovich

Grigor'Eva Nadezhda Petrovna

Nusinovich David Sukherovich

Lutfullin Ruslan Rishatovich

Dates

2016-01-20—Published

2014-10-06—Filed