تفاعل #2256030

ord-f3dac27d8b5f4dc99f4971b9f58a7ca8

معادلة التفاعل

[Na+].[Na+].[Na+].[Na+].[O-][Si]([O-])([O-])[O-]
sodium silicate
O=S(=O)([O-])[O-].O=S(=O)([O-])[O-].[Al+3].[K+]
alum
[Na+].[Na+].[Na+].[Na+].[O-][Si]([O-])([O-])[O-]
sodium silicate
O=S(=O)([O-])[O-].O=S(=O)([O-])[O-].[Al+3].[K+]
alum
O=S(=O)([O-])[O-].O=S(=O)([O-])[O-].[Al+3].[K+]
alum
→
O=[Si]([O-])[O-].O=[Si]([O-])[O-].[Al+3].[Na+]
Sodium aluminosilicate

المتفاعلات

[Na+].[Na+].[Na+].[Na+].[O-][Si]([O-])([O-])[O-]
sodium silicate
O=S(=O)([O-])[O-].O=S(=O)([O-])[O-].[Al+3].[K+]
alum
[Na+].[Na+].[Na+].[Na+].[O-][Si]([O-])([O-])[O-]
sodium silicate
O=S(=O)([O-])[O-].O=S(=O)([O-])[O-].[Al+3].[K+]
alum
O=S(=O)([O-])[O-].O=S(=O)([O-])[O-].[Al+3].[K+]
alum

الكواشف

لا شيء

المذيبات

O.O=S(=O)(O)O
sulfate water

ظروف التفاعل

درجة الحرارة
55°CELSIUS
الظروف التفصيلية
See reaction.notes.procedure_details.

المعالجة

  1. 1
    workup.ADDITIONWhile mixing
  2. 2
    workup.ADDITIONmixed
  3. 3
    workup.ADDITIONAfter the simultaneous addition step
  4. 4
    أخرىfor 10 min
  5. 5
    غسيلthe product slurry was washed
  6. 6
    ترشيحfiltered
  7. 7
    ترشيحfilter
  8. 8
    ترشيحThe collected filtered cake
  9. 9
    workup.ADDITIONzirconium oxysulfate powder was manually added
  10. 10
    workup.ADDITIONThe bead-milled Zr-treated cake slurry
  11. 11
    أخرىwas then spray dried
  12. 12
    أخرىhammer milled to an average 3-5 micron particle size

الإجراء التجريبي

Sodium aluminosilicate was prepared as follows. Approximately 5990 L of sulfate water (4% concentration) were added to a 36,000-L reactor. While mixing, the reactor contents were heated to 55° C., and 119.8 L of sodium silicate were added to the reactor and mixed. A 25-min simultaneous addition step with alum and silicate solution followed, using a sodium silicate addition rate of 398.8 L/min and an alum addition rate of 145.1 L/min. After the simultaneous addition step, a reduced alum flow rate was used to bring the batch pH to about 5.3. After digesting the batch for 10 min, the product slurry was washed and filtered using a press filter. The collected filtered cake was reslurried and zirconium oxysulfate powder was manually added. The zirconium treated cake slurry was then fed into a vertical bead mill. The bead-milled Zr-treated cake slurry was then spray dried and hammer milled to an average 3-5 micron particle size. Two batches were run, one resulting in a final amount of 0.3 wt. % Zr (Example 25), and the other resulting in a final amount of 0.45 wt. % Zr (Example 26), based on the Zr-treated sodium aluminosilicate weight.

المصدر

DOI: 10.6084/m9.figshare.5104873.v1براءة الاختراع: US09045616B1uspto-grants-2015_06