Potassium Fluoride → Potassium hexafluoraluminate

Repeated treatments were made by a solution of HF and KF at a molar ratio of 1:1 being added to suspensions of aluminium powder (Carlfors Bruk A100) in pure water at temperatures from 10° C. to 80° C. The total concentration of fluoride in the treatment solutions varied between 0.1 and 5 M and the total amount of added fluoride was 0.1-5% of the molar amount of the aluminium. The fluoride solution was added to the suspension of aluminium powder under vigorous agitation, and the powder was filtered off and dried as soon as all fluoride solution had been added. A surface layer of tripotassium hexafluoroaluminate formed on the particles. FIG. 4 shows the TG graph for the thus treated powder where the total amount of added fluoride was 2%.

1. concentrationThe total concentration of fluoride in the treatment solutions
2. additionThe fluoride solution was added to the suspension of aluminium powder under vigorous agitation
3. filtrationthe powder was filtered off
4. dry with materialdried as soon as all fluoride solution
5. additionhad been added

ORD 기록

ord-2bc62d0257cc4af88129abd3f07cf5d0

출처 데이터셋

uspto-grants-2010_08

DOI

10.6084/m9.figshare.5104873.v1

특허 번호

US07785430B2