Process for manufacturing granular igniter
January 23, 2015. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References H169 2774660 2931067 3716315 Modification of ballistic properties of HMX by spray drying Method of producing progressively burning artillery propellant powder and agent adapted thereto Producing explosive material in granular form Process for the production of particulate ammonium nitrate for solid fuels or explosives Gas generant compositions containing salts of 5-nitrobarbituric acid, salts of nitroorotic acid, or 5-nitrouracil Gas generating material InventorsAssigneeApplicationNo. 377712 filed on 01/23/1995US Classes:264/3.4, Forming or treating particulate material149/38, With nitrated organic compound149/111, Nitrated organic compound149/114, Inorganic fuel264/3.6Immersed in liquidExaminersPrimary: Jordan, Charles T.Assistant: Hardee, John R. Attorney, Agent or FirmForeign Patent References
International ClassC06B 021/00Foreign Application Priority Data1994-01-24 JPAbstractThere is provided a process for manufacturing a granular igniter, which facilitates control of the igniter preparation, handling of the granule igniter and improvement in manufacturized yield. The present invention also provides a process for manufacturing a granular igniter which is free from toxic gas generation when burned and which has excellent fluidity. The present invention moreover reduces the number of manufacturing process facilitating the production process, and reducing production costs.An igniter containing boron and potassium nitrate are mixed together with water in a homogenizer to form a homogeneous slurry. The mixing ratio of the igniter to the water is set in the range of 1.0:0.6 to 1.0:1.6 in terms of weight ratio. The slurry is sprayed in a spray dryer where it is dried and granulated. Micropowder, which failed to be collected as the granule, is recovered through a cyclone, and recirculated as the raw material.Other References
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