Claims
- 1. A product prepared by a process comprising spraying molten P.sub.2 S.sub.5 in the presence of an inert gas onto an active mass of particles which is solid P.sub.2 S.sub.5 or a combination of solid P.sub.2 S.sub.5 and an inert material.
- 2. A product according to claim 1 wherein the active mass of particles is formed by a cascading bed or a falling curtain of P.sub.2 S.sub.5 particles or a combination thereof.
- 3. A product according to claim 1 wherein the product has a reactivity within the range of from about 1.0 to about 12.degree. C./min.
- 4. A product according to claim 2 wherein a rotating drum having interior lifting courses lifts the P.sub.2 S.sub.5 particles and creates the cascading bed or falling curtain of particles.
- 5. A product according to claim 3 wherein the reactivity of the product is predetermined by the variation of the temperature of the molten spray, the temperature of the cascading/falling particles, the median particle diameter of the molten spray, the median particle diameter of the cascading/falling particles, or any combination of these parameters.
- 6. A product according to claim 1 where the temperature of the molten P.sub.2 S.sub.5 spray ranges between about 280.degree. C. and about 420.degree. C. and the temperature of the active mass of particles ranges from about 65.degree. C. to about 160.degree. C.
- 7. A product according to claim 6 where the ratio of the median volume diameter of the molten spray droplets to the mean particle diameter of the active mass of P.sub.2 S.sub.5 ranges from about 0.8 to about 0.35.
- 8. A product according to claim 5 where the temperature of the cascading/falling particles is controlled by removing absorbed heat with the flowing, inert gas.
- 9. A product according to claim 5 wherein the initial bed of P.sub.2 S.sub.5 solid particles is formed of particles having a particle size from about 800 to about 2500 microns smaller than the desired final product particle size.
Parent Case Info
This is a continuation of application Ser. No. 08/084,373, filed on Jun. 29, 1993, pending.
US Referenced Citations (15)
Continuations (1)
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Number |
Date |
Country |
Parent |
84373 |
Jun 1993 |
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