MENU
Phosphate rock contained in an acidic slurry is ground by equipment wherein the acidic slurry contacts the metallic surfaces of the equipment. A method for monitoring and controlling grinding ball consumption is provided in which acid-neutralizing particulate iron contained in the acidic slurry is measured and correlated to control curves, which relate particulate iron concentration …
عرض المزيد
An economical process for treating the acidic pond water to be used in the internal grinding circuit of a wet process phosphoric acid plant. Water is added to a quantity of a hydratable calcium compound, such as quicklime, to form a slaked lime slurry. A sufficient quantity of the slaked lime slurry is reacted with the acidic pond water to obtain a low fluoride solution …
عرض المزيد
I claim: 1. A method of manufacturing wet process phosphoric acid from phosphate rock, comprising the steps of . i. grinding the phosphate rock in a water slurry sufficiently that the phosphate rock will pass a 30 mesh (Tyler) screen, said slurry containing at least about 20 weight percent water, and said slurry being formed with water containing no more than 2 …
عرض المزيد
E~a, : washing efficiency at filter i November, 1996 Modeling and Simulation of a Wet Hemihydrate Phosphoric Acid Process 595 F : mixed feed vector to ball mill [kg/hr] p, : density of vapor at vacuum cooler i Ikg/m ~] f, : weight fraction of component i in phosphate rock 0, ~v, ~, : constants at grinding section f, : total mass flow rate of ...
عرض المزيد
Dicalcium phosphate is the calcium phosphate with the formula CaHPO4 and its dihydrate. The "di" prefix in the common name arises because the formation of the HPO42– anion involves the removal of two protons from phosphoric acid, H3PO4. It is also known as dibasic calcium phosphate or calcium monohydrogen phosphate. Di.
عرض المزيد
Uganda How To Do Grind Phosphate In Ball Mill. System.Threading.Thread.CurrentThread.CurrentCulture.TextInfo.ToTitleCase(Phosphorus Mineral Grinding Mill Uganda 720td Phosphorus Mineral Processing Plant Grinding onestage closedcircuit grinding process comprising ball mill pump and classifi ion cyclone process of …
عرض المزيد
Grinding Rock Of Phosphate. USA Wet grinding phosphate rock in an acidic. Phosphate rock contained in an acidic slurry is ground by equipment wherein the acidic slurry contacts the metallic surfaces of the equipment A method for monitoring and controlling grinding ball consumption is provided in which acidneutralizing particulate iron contained in the acidic …
عرض المزيد
Abstract: The present invention relates to a method of preparing wet process phosphoric acid, which comprises: dividing raw materials which contain phosphate rock slurry and sulfuric acid into two parts, and then feeding these two parts into two reactors separately. In the first reactor, feeding 70-90 wt. % of the total amount of the slurry and sulfuric acid, in …
عرض المزيد
Heretofore, the first step in producing phosphoric acid by the wet process was that after the grinding of the dried phosphate rock, the phosphate rock was then mixed with strong sulfuric acid (usually 93-98% concentrated) and digested into a slurry therein.
عرض المزيد
PM. Another control technique for phosphate rock dryers is use of the wet grinding process. In this process, rock is ground in a wet slurry and then added directly to wet process phosphoric acid reactors without drying. A typical 45 Mg/hr (50 ton/hr) calciner will discharge about 13 to 27 dry normal m3/sec
عرض المزيد
Us4577804a Wet Grinding Phosphate Rock In An Acidic. Phosphate rock contained in an acidic slurry is ground by equipment wherein the acidic slurry contacts the metallic surfaces of the equipment a method for monitoring and controlling grinding ball consumption is provided in which acidneutralizing particulate iron contained in the acidic slurry ...
عرض المزيد
A method and system for conducting wet grinding of mined phosphate rock before utilizing the same for the production of phosphoric acid by the wet process method, the method comprising the steps of: (1) wet grinding the phosphate rock in a medium of fresh water at a first stage so as to form a fresh water slurry comprising ground rock and fresh water, (2) sending the fresh …
عرض المزيد
The phosphate fertilizer industry is defined as eight separate processes: phosphate rock grinding, wet process phosphoric acid, phosphoric acid concentration, phosphoric acid clarification, normal superphosphate, triple superphosphate, ammonium phosphate, and sulfuric acid.Practically all phosphate manufacturers combine the various …
عرض المزيد
When making the slurry, waste water from other steps of the wet process manufacture of phosphoric acid can be used as part of an acidic diluting medium. US4577804A - Wet grinding phosphate rock in an acidic slurry - Google Patents Wet grinding phosphate rock in an acidic slurry Download PDF Info Publication number ...
عرض المزيد
Wet grinding Phosphate rock in an acidic slurry; Function. The effect of Phosphate Rock on Arsenic uptake in a multi-metal system. Bioactivation of Poorly Soluble Phosphate Rocks with a Phosphorus-Solubilizing Fungus; Effects of Phosphate Rock on Sequential Chemical Extraction of Lead in Contaminated Soils
عرض المزيد
Grinding mill machine, in terms of application, it can be divided into industrial grinding mill and laboratory grinding mill (small impact crusher). Among them, the industry has the widest range of uses. For example, coal grinding mill, rock grinding mill, plastic grinding mill, rubber grinding mill, limestone grinding mill, flour mill grinder ...
عرض المزيد
Us4577804a Wet Grinding Phosphate Rock In An Acidic. A method for monitoring and controlling grinding ball consumption is provided in which acidneutralizing particulate iron contained in the acidic slurry is measured and correlated to control.
عرض المزيد
granite melbourne wet ball mill - alamarmite-ukrainienne.be. demerits of stone wet ball mill plants. The ball mill is a key piece of equipment for grinding crushed materials, and it is widely used in production lines for powders such as cement, silicates, refractory material, fertilizer, glass ceramics, etc. as well as for ore dressing of both ferrous and non-ferrous metals.
عرض المزيد
crushers screeners distributors in Indonesia. Sand Crushing Screening Equipment disadvantages of rock crushers for sale alberta turnkey crushing amp loading plant indonesia . sand making production line crusher pcl 1350 stone crushing equipment supplier in india mumbai&n
عرض المزيد
Muhammad Sajid, UOG 5 WET PROCESS • RAW MATERIALS Basis: 1000kg phosphoric acid () Phosphate rock = 1635kg Sulfuric acid = 1360kg Engr. Muhammad Sajid, UOG 6 WET PROCESS Engr. Muhammad Sajid, UOG 7 WET PROCESS • Wet process is by far the most common route and the acid can be used in phosphate fertilizers production (DAP, MAP, SPA).
عرض المزيد
Phosphoric acid is produced by mining the naturally . occurring phosphate rock and processing it via a . wet process. or a . thermal process. The wet process is by far the most common method, as the resulting phosphoric acid is of adequate quality to produce fertilizers. About 80 % of the world's phosphoric acid is obtained by the wet process.
عرض المزيد
Their phosphoric acid processes, however, are capable of producing an acid of far higher quality than that normally associated with fertilizer grade acid. Unground phosphate rock is fed into the first of a series of three dissolvers along with recycle HCl, a portion of the HCl feed, and CCD wash water.
عرض المزيد
For example, a new Swenson phosphoric acid concentration unit was installed in 2004. The dihydrate process offers several advantages: it can be used with all types of phosphates (sedimentary or igneous); phosphate can be supplied in slurry form (wet grinding); it is easy to control the water balance (recycle pond water, reduction/elimination of ...
عرض المزيد
US4577804A Wet grinding phosphate rock in an acidic. Phosphate rock contained in an acidic slurry is ground by equipment wherein the acidic slurry contacts the metallic surfaces of the equipment. A method for monitoring and controlling grinding ball consumption is provided in which acid-neutralizing particulate iron contained in the acidic ...
عرض المزيد
Abstract: A wet phosphoric acid production process comprising the attack on phosphate rock by sulfuric acid and phosphoric acid utilizing a vacuum cooling and a recirculation of the reaction slurry. The flow rates of the materials within the system are maintained at a level, relative to the rate of withdrawal of the slurry from the system, of between 300% and 4000% for the cyclic …
عرض المزيد
A method is disclosed for the manufacture of phosphoric acid directly from phosphate rock wherein the crushed phosphate rock is mixed with dilute phosphoric acid to form a slurry and the slurry is then heated to produce calcium monophosphate. Thereafter, oxalic acid is added to the slurry to precipitate the calcium therein as calcium oxalate which is separated.
عرض المزيد
This application discloses a method of wet grinding crude phosphate rock containing clay minerals and the like impurities. The procedures of the invention produce a rock slurry of enhanced fluidity and a desired degree of economy; and the principles of the invention may be applied to rock slurries after size-reduction. The method of the invention contemplates …
عرض المزيد
Wet-rock grinding facilities are in full-scale operation in phosphoric acid plants at the Plant City complex of C.F. Industries (Florida), at Agrico Chemical's Faustina (Louisiana) facility, and at both the old and new plants of W.R. Grace's Bartow complex (Florida).9 IMC is also converting its dry-rock grinding operations to wet grinding at ...
عرض المزيد
Grinding efficiency can be increased by using wet grinding (with savings of 30-40 percent in power). Another way to save energy is to integrate the steam production units with the sulfuric acid plants. ... Purifying wet-process phosphoric acid. Depending on the phosphate rock, wet process phosphoric acid may contain a variety of impurities ...
عرض المزيد
The high acidity of the grinding slurry is neutralized to some extent by acid-neutralizing impurities contained in the raw phosphate rock being ground in the ball mills and in the coarse fraction of ground phosphate rock which, in most plants utilizing wet grinding, is recycled from cyclone separators or other types of particle size separators ...
عرض المزيد
Ball Mill System For Rock Phosphate. 50 tph ball mill for rock phosphate grinding. 6 roller Raymond roller mill capable of grinding 12 14 TPH of 200 mesh powder of dolomite limestone silica sand soda feldspar rock phosphate and other minerals could also be ground in the same. Rock Phosphate Grinding Mills Japan. Wet grinding mills1.78 . Read …
عرض المزيد
Dihydrate slurry is filtered on a Prayon tilting pan filter to recover the phosphoric acid. Depending on the rock processed, the ex-filter acid strength is typically 25-29% P 2 O 5 and the typical P 2 O 5 recovery efficiency is 94-95%.
عرض المزيد
Concentrated Phosphoric Acid: 700 TPD P2O5 – Concentration of Concentrated acid 50-24% P2O5. It is the main raw material of phosphate fertilizer production. STEAM Phosphate preparation unit consists of 3 main processes: crushing, grinding and thickening. The raw phosphate rock is (19-20% P2O5) crushing to the desired sizing. Sized ...
عرض المزيد
A study of erosion-corrosion of grinding media during the grinding of Florida phosphate rock with recycled waste phosphoric acid showed some characteristics of the two ball mills. This slurry was quite acidic, ranging from an initial pH of 2 to a final pH of 3 after the 1-h test. Erosion-corrosion wear data on four alloys are given in table 7.
عرض المزيد
Phosphate rock contained in an acidic slurry is ground by equipment wherein the acidic slurry contacts the metallic surfaces of the equipment A method for monitoring and ... This application discloses a method of wet grinding crude phosphate rock containing clay minerals and the like impurities The procedures of the invention produce a rock ...
عرض المزيد
Wet grinding phosphate rock in an acidic slurry Freeport . Mar 25 1986The neturalizing effects of the phosphate rock impurities alone is usually not sufficient to prevent corrosion of the grinding balls. Iron or steel erosion in ball mills used for wet grinding phosphate rock has been a concern of the industry for some time due to its expense.
عرض المزيد
Copyright © 2024 Sofol Industry & Technology Group Co., Ltd.
المنتجات
محلول
حول الولايات المتحدة
اتصل بنا