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This technology is one of most advanced production methods of potassium sulfate--- Mannheim Process method. The core is updated new reaction furnace based upon the basis of dry baking method to produce the potassium sulfate. Under the support of the special equipment, it has resolved the abrasion and the corrosion under the condition of high temperature and strong acid and the process problem of continuous output. Comparing with the similar equipments from foreign countries, its outstanding characteristics are less investment, short building duration (four to six months), high atomization, reliable quality, high heating efficient, high output, and environment protective. The design, fabrication, installation, production process, inspection and testing of this whole set of technique and equipment, are completed by ourselves. We have successfully exported the whole set of equipment and technical know-how to overseas firms in Philippines, Indonesia, India, Egypt, Saudi, brazil etc.
Reaction process are: reaction temperature is 510-560ºC, feed KCL and H2SO4 to reaction chamber properly, both will be mixed and reacted to generate K2SO4 and HCL gas. HCL gas be sucked by fan continuously and keep reaction chamber is little negative pressure, finished K2SO4 be moved to cooling propeller continuously to cooling and crushing, then goes into air-sealing propeller, be moved to drag conveyor, through crushing and screening, will be sent to storage silo.
Potassium sulfate
| Description | Index |
| Content of potassium oxide (K2O) % ≥ | 50 |
| Content of chlorine (CL) % ≤ | 1.5 |
| Content of moisture % ≤ | 1.0 |
| Content of free acid (H2SO4) % ≤ | 0.5 |
| Appearance | White |
Hydrochloric acid
| Description | Index |
| Content of total acid (calculated by HCL) % ≥ (HCL)≥ |
31 |
| Content of iron (Fe) % ≤ | 0.005 |
| Content of oxide (calculated by CL-) % ≤ | 0.05 |
| Content of burnt leavings% ≤ | 0.08 |
| Content of sulfate (calculated by SO42-) % ≤ | A acid: 0.005 B acid: 0.5-0.75 Production ratio of A & B: ~1:2 |
| Content of arsenic (AS) % ≤ | 0.0001 |
| Description | Specification |
Unit | Quantity | Remark |
| Potassium chloride | K2O 60% | Kg | 860 | |
| Sulfuric acid | H2SO4 98% | Kg | 570 | |
| Stone powder | Kg | 40 | ||
| Electricity | V=380 50HZ | kwh | 60-70 | |
| Fuel | Natural gas | Liter | 90 | |
| Diesel oil | Liter | 75 | ||
| Water used for process | ≤ 30ºC | M3 | 1.2 | |
| Compensative water for cooling | M3 | 10 |
One furnace capacity is 10,000 t/y K2SO4 and 12,000 t/y hydrochloric acid (31% HCl).
| Item | Powder | Granule | |||
| Premium | 1st class | Qualified | Premium | Qualified | |
| Mass fraction of soluble potassium oxide (K2O) %, ≥ | 52 | 50 | 45 | 50 | 45 |
| Mass fraction of sulfur (S) %, ≥ | 17.0 | 16.0 | 15.0 | 16.0 | 15.0 |
| Mass fraction of chloride (CL¯)% , ≤ | 1.5 | 2.0 | 2.0 | 1.5 | 2.0 |
| Mass fraction of water(H2O)%, ≤ | 1.0 | 1.5 | 2.0 | 1.5 | 2.5 |
| Mass fraction of acid(calculated with H2SO4)% ≤ | 1.0 | 1.5 | 2.0 | 2.0 | 2.0 |
| Mesh size, b(particle size 1.00mm-4.75mm or 3.35mm-5.60mm)%, ≥ | _ | _ | _ | 90 | 90 |
Hengshui Gains Trade Co., Ltd. Locates in Jizhou City, Hebei Province-biggest production base of FRP products and radiators of China, combines advantages of local different industries, Hengshui Gains Trade Co., Ltd. consists of several large-scale manufacturers, depends on customers' different requirements, we recommend and choose suitable manufacturer to satisfy and fullfill, we can provide design, supply, shipping, installation, commissioning etc one-station service or technical consultation service. From our company to Tianjin seaport is 300km, to nearest airport is 180km, nearest high-speed train station is 90km.
Our core business and services are:
Cooperation Win-win
Our company established by several manufacturing enterprises jointly, we can provide that design, manufacture, installation supervision etc one-station services.
Q: why choose Gains Trade?
A: 15+ years experience in FRP industries, have rich experience that provide different FRP products to Fluor, Technip, Dossan, Arkema, Toyo, Veolia, Wison, Dupont, BASF etc.
Q: Can you choose correct raw material for our FRP product?
A: absolutely, pls provide medium & concentration, temperature, pressure etc technical parameters, PP/FRP, PVC/FRP, PVDF/FRP etc pipe/tank/tower also are in our supply scope.
Q: what's your delivery time?
A: we have several manufacturing plants, each plant has design department, production facilities, we can finish your FRP products in shortest time.
Q: which port is nearest to your plant?
from our plant to Tianjin seaport is 300km, to Shijiazhuang/Jinan airport is 150km, to Hengshui high-speed train station is 30km.
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