METHOD OF OBTAINING CALCIUM SULPHATE-BASED SORBENT ON CARRIER FROM CELLULOSE FIBRES Russian patent published in 2014 - IPC B01J20/30 B01J20/04 B01J20/28 

Abstract RU 2523465 C1

FIELD: chemistry.

SUBSTANCE: sorbent contains calcium sulphate on a carrier from fibrillated cellulose fibres, which contains not less than 95 wt % of the fibres not longer than 1.20 mm and not less than 55 wt % of the fibres not longer than 0.60 mm. A method includes preparation of an initial water dispersion, which contains the said fibres and dissolved calcium chloride. The dispersion is processed with sodium sulphate. Processing results in formation of calcium sulphate particles and their immobilisation on the fibres. The quantity of immobilised calcium sulphate particles constitutes 100-1200 wt. p. counted per 100 wt.p. of the fibres.

EFFECT: obtaining a sorbent, efficient for removal of fluorine and/or phosphates from water media.

3 ex

Similar patents RU2523465C1

Title Year Author Number
METHOD OF PRODUCING FERRIC HYDROXIDE-BASED SORBENTS ON CELLULOSE FIBRE SUPPORT 2013
  • Mazitov Leonid Askhatovich
  • Finatov Aleksej Nikolaevich
  • Finatova Irina Leonidovna
RU2527240C1
METHOD OF OBTAINING SORBENTS BASED ON IRON HYDROXIDE AND CALCIUM SULPHITE ON CARRIER FROM CELLULOSE FIBRE 2013
  • Mazitov Leonid Askhatovich
  • Finatov Aleksej Nikolaevich
  • Finatova Irina Leonidovna
  • Orlova Aleksandra Petrovna
RU2523466C1
METHOD OF PRODUCING SORBENTS BASED ON Zn(OH) AND ZnS ON CELLULOSE FIBRE SUPPORT 2013
  • Mazitov Leonid Askhatovich
  • Finatov Aleksej Nikolaevich
  • Finatova Irina Leonidovna
  • Orlova Aleksandra Petrovna
RU2528696C1
METHOD OF PURIFYING NATURAL OR WASTE WATER FROM FLUORINE AND/OR PHOSPHATES 2013
  • Mazitov Leonid Askhatovich
  • Finatov Aleksej Nikolaevich
  • Finatova Irina Leonidovna
RU2528999C1
METHOD OF PRODUCING LEAD SULPHIDE-BASED COMPOSITE SORBENT 2012
  • Mazitov Leonid Askhatovich
  • Finatov Aleksej Nikolaevich
  • Finatova Irina Leonidovna
  • Finatov Nikolaj Evdokimovich
RU2488439C1
METHOD OF WATER SOFTENING AND DEIRONING 2013
  • Mazitov Leonid Askhatovich
  • Finatov Aleksej Nikolaevich
  • Finatova Irina Leonidovna
RU2541017C1
METHOD PURIFYING WASTE WATER FROM ALUMINIUM IONS 2011
  • Mazitov Leonid Askhatovich
  • Finatov Aleksej Nikolaevich
  • Finatova Irina Leonidovna
RU2468997C1
METHOD OF PURIFYING ACIDIC WASTE WATER FROM HEAVY METAL IONS 2011
  • Mazitov Leonid Askhatovich
  • Finatov Aleksej Nikolaevich
  • Finatova Irina Leonidovna
RU2480419C1
METHOD OF PRODUCING COMPOSITE BACTERICIDAL PREPARATION 2011
  • Mazitov Leonid Askhatovich
  • Finatov Aleksej Nikolaevich
  • Finatova Irina Leonidovna
RU2474121C1
METHOD FOR OBTAINING GOLD FROM FINE ROCK 2012
  • Mazitov Leonid Askhatovich
  • Finatov Aleksej Nikolaevich
  • Finatova Irina Leonidovna
  • Finatov Nikolaj Evdokimovich
RU2490343C1

RU 2 523 465 C1

Authors

Mazitov Leonid Askhatovich

Finatov Aleksej Nikolaevich

Finatova Irina Leonidovna

Dates

2014-07-20Published

2013-02-28Filed