تفاعل #2256029

ord-bccb201a97954c218cf4584e5e3c11d2

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
O=S(=O)([O-])[O-].[Na+].[Na+]
sodium sulfate
[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
O=S(=O)([O-])[O-].[Na+].[Na+]
sodium sulfate
[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
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
    أخرىThe filtered cake was collected
  9. 9
    أخرىdried
  10. 10
    أخرىhammer milled to an average 5-6 micron particle size

الإجراء التجريبي

The sodium aluminosilicate of Example 1 was prepared as follows. Approximately 300 L of hot process water and 12.4 kg of anhydrous sodium sulfate were added to a 1200-L reactor. While mixing, the reactor contents were heated to 55° C., and 5.9 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 19.9 L/min and an alum addition rate of 7.26 L/min. After the simultaneous addition step, a reduced alum flow rate (1-2 L/min) 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 filtered cake was collected. A portion of filtered cake was spray dried and hammer milled to an average 5-6 micron particle size.

المصدر

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