Composite aggregate particles, adsorbent using same, molded body and water purifier
An aspect of the present invention relates to composite aggregate particles, which include a fine particle compound (a1) containing at least either an amorphous titanosilicate compound or an aluminosilicate compound, and a plastic powder (a2). The plastic powder (a2) is attached to at least a part of the surface of the fine particle compound (a1). The pore volume and the average particle size D50 of the composite aggregate particles satisfy the following formula: pore volume (ml/g)≥0.0010×D50 (μm)+1.60.
1. Composite aggregate particles, comprising:
a fine particle compound (a1) containing at least either an amorphous titanosilicate compound or an aluminosilicate compound; and
a plastic powder (a2),
wherein
the plastic powder (a2) is attached to at least a part of a surface of the fine particle compound (a1), and
a pore volume and an average particle size D50 of the composite aggregate particles satisfy the following formula:
pore volume (ml/g)≥0.0010×D50 (μm)+1.60.
2. The composite aggregate particles according to claim 1 , which have an average particle size D50 of 50 μm to 1 mm.
3. An adsorbent, comprising:
the composite aggregate particles according to claim 2 and activated carbon.
4. The composite aggregate particles according to claim 1 , wherein a content of the plastic powder (a2) is 3 mass % or more and 40 mass % or less.
5. An adsorbent, comprising:
the composite aggregate particles according to claim 4 and activated carbon.
6. The composite aggregate particles according to claim 1 , wherein an average particle size D50 of the fine particle compound (a1) is 200 μm or less.
7. An adsorbent, comprising:
the composite aggregate particles according to claim 6 and activated carbon.
8. The composite aggregate particles according to claim 1 , wherein the plastic powder (a2) is a thermoplastic resin.
9. The composite aggregate particles according to claim 8 , wherein a melt flow rate of the thermoplastic resin is 0.02 g/10 minutes or more and 40 g/10 minutes or less.
10. An adsorbent, comprising:
the composite aggregate particles according to claim 9 and activated carbon.
11. The composite aggregate particles according to claim 8 , wherein the thermoplastic resin is polyethylene.
12. An adsorbent, comprising:
the composite aggregate particles according to claim 11 and activated carbon.
13. An adsorbent, comprising:
the composite aggregate particles according to claim 8 and activated carbon.
14. An adsorbent, comprising:
the composite aggregate particles according to claim 1 and activated carbon.
15. A molded body, comprising:
the adsorbent according to claim 14 .
16. A water purifier, comprising:
the adsorbent according to claim 14 .
17. The water purifier according to claim 16 , which has lead ion removing performance of 80 liters or more per 1 ml of cartridge at a space velocity of 1000 hr −1 .