Nigeria is rich is solid mineral resources, such as: Kaolin, gypsum, mica, clay, tantalite, iron ore, gemstone, silica sand.
Read More
Recycling concrete &building rubble is not only able to bring profit to investors, but also good for environment protection.
Read More
By absorbing the advanced technology from the world, we researched and designed PF series impact crusher.…
Read More
Base on the plentiful experience of producing and marketing of impact crusher, Sofol R&D institution…
Read More
Adopting technology from the world, PY Series spring cone crusher has an excellent performance in secondary…
Read More
The vibrating screen is a kind of sieving equipment of international advanced level, developed by our…
Read More
Sofol VSI Series vertical shaft impact crusher is designed by reputed German expert of Sofol and every…
Read More
Ammono-carbonation reaction of any kind of gypsum (pure, PG or FGD gypsum) with ammonium carbonate known as Merseburg Process is used to produce ammonium sulfate and calcium carbonate.
Details
During the conversion process, the transfer factor of trace metals into the precipitated CaCO 3 is high, approximately 90%. Hence, sodium sulfate and ammonium sulfate were obtained with high purity. Divalent metals such as Pb, Ni, Cu, Cd, and Zn can be easily incorporated into the precipitate because of adsorption on the precipitated …
Details
Ammono-carbonation reaction of any kind of gypsum (pure, PG or FGD gypsum) with ammonium carbonate known as Merseburg Process is used to produce ammonium …
Details
a process for the manufacture of ammonium sulfate and calcium carbonate which comprises reacting an aqueous slurry of calcium sulfate and an aqueous solution ⁇ of ammonium carbonate in a plurality of reaction zones in the presence of a minor quantity of ammonium bicarbonate, said reaction zones being of progressively larger size and of …
Details
Throughout the period under review here, ammonium sulphate, because of its several sources, was the most important nitrogen fertilizer. The sulphate's industrial origins ranged from coal-based processes—namely the coal gas and coke oven works—to production from calcium cyanamide and then synthetic ammonia. By the mid-1920s, …
Details
8.4 Ammonium Sulfate 8.4.1 General1-2 Ammonium sulfate ([NH4]2SO4) is commonly used as a fertilizer. In 1991, U. S. facilities produced about 2.7 million megagrams (Mg) (3 million tons) of ammonium sulfate in about 35 plants. Production rates at these plants range from 1.8 to 360 Mg (2 to 400 tons) per year. 8.4.2 Process Description1
Details
Phosphogypsum (PG) is a by-product of wet process phosphoric acid production, mainly composed of calcium sulfate dihydrate (gypsum) together with some impurities. The annual accumulation rate of ...
Details
Phosphogypsum (PG) is a by-product of wet process phosphoric acid production, mainly composed of calcium sulfate dihydrate (gypsum) together with some impurities. The annual accumulation rate of ...
Details
In this manner, the Merseburg process (the ammono-carbonation of gypsum) allows both CO 2 capture and PG recycling. Products are ammonium sulfate, …
Details
The process for manufacture of ammonium sulfate from gypsum, known as the Merseburg Process, named for the town in Germany where it was developed, has been commercially produced in plants in Austria, India, Pakistan and the United Kingdom in the past. It is based on reacting ammonia and carbon dioxide to produce
Details
Tel.: +90 536 619 5776 ; e-mail: [email protected]. with acting in plants stress responses and host-pathogen interactions. Affecting the plants on biochemical level, sulphur, takes part in the growth, development, disease resistance and nutritional quality of …
Details
Revisiting the Merseburg Process Economic Opportunity and Enviro - Free download as PDF File (.pdf), Text File (.txt) or view presentation slides online. This document summarizes a presentation given at the Beneficiation of Phosphates VIII conference about revisiting the Merseburg process for producing ammonium sulfate from gypsum. The …
Details
•To produce one short ton ammonium sulphate (FIPR 2006) •Total cost: < $100/ton including raw materials, operating and plant capital. Raw material and utilities requirements Ammonia 0.3 ton Gypsum 1.6 ton Carbon dioxide 0.4 ton Sulphuric acid 0.005 ton Cooling water (make-up) 1700 gal Power 75 kW-hr Coal 0.17 ton Process water 770 gal Steam ...
Details
Although an ammonium sulphate production is foreseen with the evaluation of carbon dioxide and phosphogypsum waste with the Merseburg process, the effect of the impurity content of the waste ...
Details
The production of ammonium sulfate has significant applications, especially in agriculture. It is used as a source of nitrogen and sulfur for plant nutrition. ... The authors propose converting this waste into ammonium sulfate by the process called Merseburg (Ammonia-carbonation) [120, 121]. Recently, based on this process, a study has been ...
Details
Kinetics of the conversion of calcium sulfate to ammonium sulfate using ammonium carbonate aqueous solution. ... Investigation of phosphogypsum valorization by the integration of the Merseburg method. New Journal of Chemistry 2020, 44 (19 ... You've supercharged your research process with ACS and Mendeley! Continue. STEP 1: Login …
Details
The authors propose converting this waste into ammonium sulfate by the process called Merseburg (Ammonia-carbonation) [120, 121]. Recently, based on this process, a study has been conducted on the ...
Details
Synthetic: Direct reaction of ammonia and sulphuric acid. Scrubbing coke-oven gas with sulphuric acid. Recovery from industrial byproduct liquors. Most common is from waste …
Details
OF THE DISCLOSURE Ammonium sulfate is manufactured from gypsum by a 15 continuous process in which an aqueous flow of material is continously recycled along a predetermined closed cir cuit defined by a conduit and a wider vessel connected in series. A fresh aqueous gypsum slurry comprising a dis persion of finely divided gypsum in an …
Details
Also, the steps followed through the Merseburg process can affect the efficiency of the PG conversion. 2.2 The PG conversion by (NH 4 ) 2 CO 3 prepared from the reaction between NH 3 and CO 2 gaseous
Details
The production of ammonium sulfate fert ilizer from phosphogypsum is studied. The phosphogypsum is considered by prod uct from extraction process of sulphoric acid. The mereseberg process is used a waste of phosphogypsum with ammonium carbonate to produce ammonium sulfate as a main product and calcium carbonate as a byproduct. It …
DetailsWe evaluated the chemical sequestration of carbon dioxide into the phosphogypsum from the Lowveld region of South Africa. The phosphogypsum was converted to saleable ammonium sulphate and precipitated calcium carbonate in a modified Merseburg process. The heat from the ammonium carbonate formation …
Details
ammonium sulphate produced was in the range 1.2–3.3 mm. They also estimated that a compaction unit to produce granules of ammonium sulphate as usually required by the fertiliser industry would make the process uneconomical. In this study, we carried out a bench scale technical fea-sibility of the Merseburg process modified by omitting the CO
Details
Products are ammonium sulfate, a well-desired nitrogenous fertilizer and CaCO3, a functional filler material utilized in various kinds of industries. The Merseburg process allows dual environmental benefits by allowing the consumption of an industrial by-product and performing CO2 capture technology, both contributing to sustainable …
Details
The Merseburg process is also known as the ammonia-car - bonation reaction, and was first developed in Germany between 1913 and 1918. In 1923, production started in the United Kingdom and Korea. The first plant to use PG in the Merseburg process in 1942 was in Selzeate, France. In the 1950s and 1960s, plants in Germany, India, Pakistan,
Details
The Merseburg process begins with the reaction between ammonia and carbon dioxide in a carbonation tower (AB-01) which will produce ammonium carbonate. Then, in the CSTR reactor (R-01), the resulting ammonium carbonate will be reacted with gypsum to produce ammonium sulfate and calcium carbonate products.
Details
The Role of the Merseburg Process in Industrial Decarbonisation and Waste..., Kem. Ind. 71 (9-10) (2022) 633−638 633 ... process, the produced ammonium sulphate is among the
Details
In this process, the attack of 2 tons of PR with sulfuric acid (H 2 SO 4) produces about 1 ton of phosphoric acid (H 3 PO 4) and 5 tons of calcium sulfate dihydrate (CaSO 4 ·2H 2 O) known as phosphogypsum waste (PG) [].Annually, the current production of PG worldwide is more than 250 million tons [].In Morocco, it exceeds 25 million tons …
Details
It is often called the Merseburg process that the production of ammonium sulfate by gypsum. And there have been some researches on the conversion of waste gypsum, such as PG (Msila et al., 2016), red gypsum (Azdarpour et al., 2018) and FGD gypsum (Danielik et al., 2019). However, most of the current researches focus on the …
Details
Phosphogypsum (PG) is a by-product of wet process phosphoric acid production, mainly composed of calcium sulfate dihydrate (gypsum) together with some impurities. The annual accumulation rate of ...
Details
Sofol is a well-known crusher and grinding mill manufacturer that offers equipment and solutions for customers from aggregates, mining and mineral grinding industry.
You can leave your message here, we'll send you an Email immediately.
Online ChatCopyright ©2000- 2024 Shanghai Sofol CompanySitemap
PE series jaw crusher is usually used as primary crusher in quarry production lines, mineral ore crushing plants and powder making plants.
GET QUOTE