Title:
REMOVAL OF COLLOIDS AND SOLUBLE SUBSTANCES USING CATIONIC NANOPARTICLES IN THE PAPERMAKING PROCESS
Document Type and Number:
WIPO Patent Application WO/2007/033601
Kind Code:
A1
Abstract:
There are provided a cationic nanoparticles sol and a papermaking method using
the same, more particularly, the cationic nanoparticles sol is used to remove
colloids and soluble pollutants in water during the papermaking process, and
is retained onto the paper sheets to be removed along with the paper products from
water in the papermaking process, wherein the cationic nanoparticles have a
specific surface area of above 200m2/g to 5000m2/g, and
the mole ratio of aluminum to surface silica can be within the range of from 1:8
to 30:1.
Inventors:
DENG LI (CN)
Application Number:
PCT/CN2006/002484
Publication Date:
March 29, 2007
Filing Date:
September 22, 2006
Export Citation:
Assignee:
DENG LI (CN)
International Classes:
C01B33/149; D21H17/69; D21H21/10
Foreign References:
| US4946557A | 1990-08-07 | |||
| US4798653A | 1989-01-17 | |||
| US3956171A | 1976-05-11 | |||
| US3719607A | 1973-03-06 | |||
| US3007878A | 1961-11-07 | |||
| US3719607A | 1973-03-06 |
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW (Scitech place No.22 Jian Guo Men Wai Ave, Chao YangDistrict Beijing l, CN)
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