PRODUCTION OF CARBOXYMETHYL CELLULOSE HAVING HIGH BULK DENSITY

Title:

PRODUCTION OF CARBOXYMETHYL CELLULOSE HAVING HIGH BULK DENSITY

Document Type and Number:

Japanese Patent JPH06206901

Kind Code:

A

Abstract:

PURPOSE: To produce carboxymethyl cellulose, having a high bulk density and excellent in powder fluidity without requiring regulation of the moisture content, etc., by kneading a reactional product etherified in a shearing apparatus according to a solvent method, then pulverizing the kneaded product and classifying the pulverized material.

CONSTITUTION: A reactional product after completing the etherification according to a solvent method is kneaded in an apparatus to which a shearing force is applied, then dried, pulverized and classified to produce carboxymethyl cellulose having 600-950g/L bulk density. The water content in the amount of the residual solvent in the reactional product after the kneading is 80-99wt.%. The amount of the residual solvent before the kneading is 30-70wt.%. The bulk density is preferably 650-850g/L.

Inventors:

SASAKI TAKAYUKI
TAKAHASHI KEIICHI
MIURA SHINJI
FUJIOKA NOBUAKI

Application Number:

JP1945193A

Publication Date:

July 26, 1994

Filing Date:

January 13, 1993

Export Citation:

Click for automatic bibliography generation Help

Assignee:

JUJO PAPER CO LTD

International Classes:

C08B11/12; C08J3/12; (IPC1-7): C08B11/12; C08J3/12

Domestic Patent References:

JP45012309A

Attorney, Agent or Firm:

Tadao Noma (1 outside)

Previous Patent: A solid electrolyte sheet, an electrode sheet, and all the solid rechargeable batteries

Next Patent: A vegetable molding object and a molding method for the same