반응식
[Si:1]([O-])([O-])([O-])[O-:2].[Na+:6].[Na+].[Na+].[Na+].[O:10]=[Al-:11]=O.[Na+]>>[OH2:2].[O-2:10].[O-2:2].[O-2:2].[O-2:2].[O-2:2].[O-2:2].[Na+:6].[Na+:6].[Al+3:11].[Al+3:11].[Si+4:1]참가 물질
3
실험 절차
According to batch size, gel composition and contents of sodium silicate, sodium aluminate solution is prepared. This is added at a controlled rate and at ambient temperature to sodium silicate solution taken previously in a stainless steel reactor. Slurry of reaction mixture is allowed to crystallize at temperature 70-100° C. for 1 to 5 hours until Zeolite-A formation takes place. Zeolite-A slurry is filtered and washed till filtrate pH was ˜11 to 10.5. Wet cake thus obtained is dried in a dryer and dry powder was pulverized and subjected to analysis. The comparison of the properties of detergent builder Zeolite-A produced according to present invention (Example 10) and SASIL (Degussa-Henkel) is given in Table 1.
후처리
- customis prepared
- customtaken previously in a stainless steel reactor
- customSlurry of reaction mixture
- customto crystallize at temperature 70-100° C. for 1 to 5 hours until Zeolite-A formation
- filtrationZeolite-A slurry is filtered
- washwashed till filtrate pH was ˜11 to 10.5
- customWet cake thus obtained
- customis dried in a dryer
- customdry powder
출처 및 근거
- ORD 기록
- ord-a7b91d1aa1754fbbaf6a75c47af75f06
- 출처 데이터셋
- uspto-grants-2009_07
- 특허 번호
- US07560093B2
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