method of producing ferrous sulphate

Patente US7097816 - Forming ferrous sulfate monohydrate from a ...

In a method of producing ferrous sulfate heptahydrate, ferrous sulfate monohydrate is converted in a crystallization reactor in the presence of water into ferrous...

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PROCESS FOR PRODUCING FERROUS SULFATE - M & T ...

18 Sep 1973 ... A process is provided for converting iron, such as scrap iron, directly to ferrous sulfate monohydrate in the absence of intermediate formation of...

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Indirect Methods of Making Prussian Blue - ferrous, ferrocyanide ...

As already mentioned, commercial ferrous sulphate only is used for manu facturing Prussian blue by the indirect process. This material can be bought at such a...

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wo/2010/125205 method for producing ferrous sulphate from ... - WIPO

4 Nov 2010 ... The subject matter of the present invention relates to the production of a solution of ferrous sulphate, in aqueous acid medium the raw material...

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Taylor & Francis Online :: Preparation of poly ferric sulfate and the ...

26 Sep 2013 ... Poly ferric sulfate (PFS) is a kind of polymeric coagulants widely used in ... In practice, the producer can choose various methods based on the...

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method of producing ferrous sulphate

The patent in suit is concerned with a method of producing a dry cement Although this prior art teaches that ferrous sulphate can be added to Portland.

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Patent CN101955233B - Method for producing ferrous sulphate ...

The invention relates to a method for producing ferrous sulphate monohydrate, which belongs to the field of chemical industry. The technical problem solved in...

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ferrous sulphate to removal heavy metal - Tradekey Community

Ferrous sulfate metal wastewater treatment method is the commonly used method, but the process is completely different, and plating production of ion plating...

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Titanium Dioxide|SCR series|Zirconium chemicals|Iron Oxide Black ...

What's more, the production process of electronic grade purity ultra-fine ... production with sulphate process and chloride process to expand production scale.

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Manufacturing of New Formulations of Ferrous Fumerate By Direct ...

Ferrous fumarate is soluble in dilute acid but poorly soluble in water and is well ... Tablets produced by the direct compression method give lower microbial...

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PREPARATION AND APPLICATION OF POLYFERRIC SULFATE IN ...

10 Sep 2011 ... Poly-ferric sulfate (PFS) has been attracted a lot of attentions in the use in ... There are many methods to produce PFS in liquid or solid forms.

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Ferrous Sulphate-Analysis, Applications, Process, Patent ...

We provide information such as Analysis, Applications, Process, Patent, Consultants, ... Ferrous sulphate, a waste product in titanium white production at the...

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Patent CN1900025A - Method for producing organic composite ...

The marsh liquid is mixed with potassium sulfate, diammonium phosphate, urea, ... Method for producing organic composite medicine fertilizer with anaerobic ... phosphate, potassium sulfate, ferrous sulfate, boric acid, manganese sulfate,...

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Large-scale production of salt fortified with iodine and iron

A new dry-mixing process for producing iodine- and iron-fortified salt on a ... with 1% sodium hexametaphosphate, 0.5% ferrous sulphate heptahydrate, and...

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Ink, Medieval Manuscript Manual

There are a fair number of medieval recipes for making ink. There were two ... The second is ferrous sulphate, known also as copperas, green vitriol, or salmortis.

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Patent CN102115210B - Method for producing ferrous nitrate and ...

The invention provides a method for producing ferrous nitrate and calcium sulfate from waste acids generated during the production of titanium dioxide through...

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experiments in the alchemical production of mineral acids

Since the earliest methods of nitric acid employed this chemical, nitric acid was ... must have been nitric acid produced from the dry distillation of ferrous sulfate.

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CR Scientific: Chemistry Experiments: Preparation of Ferrous Sulfate

WARNING: This procedure involves working with sulfuric acid. ... Ferrous sulfate is useful in chemistry as a reducing agent and a source of ferrous ions. ... 7H2O growing from a sulfuric acid - ferrous sulfate solution (click for larger image).

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How fertilizer is made - material, production process, making, history ...

The process of adding substances to soil to improve its growing capacity was developed ... Other mined materials include iron from ferrous sulfate, copper, and...

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Patent US20130052106 - Process for the production of ferrous ...

28 Feb 2013 ... The invention provides a process for the production of ferrous sulphate monohydrate which comprises: (a) reacting a source of iron with an...

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Industrial waste utilization method: producing poly-ferric sulfate (PFS ...

ABSTRACT Sodium-jarosite is a type of industrial waste that results from hydrometallurgy and inorganic chemical production. The iron content of jarosite residue...

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Patent CN101955233A - Method for producing ferrous sulphate ...

The invention relates to a method for producing ferrous sulphate monohydrate, which belongs to the field of chemical industry. The technical problem solved in...

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What is Iron Sulphate? Ferrous Sulphate vs. Ferric Sulphate

11 Apr 2014 ... Despite their differences, production of ferrous and ferric sulphate ... These two compounds can be used in many different ways, but their...

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Novel Method for the Production of Color-Compatible Ferrous ...

19 Feb 1996 ... Ferrous sulfate heptahydrate (FSH), a highly bioavailable water-soluble compound, was used for the production of fortified simulated rice...

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Iron Containing Patents (Class 423/558) - Justia Patents Database

Abstract: A process of producing a less acidic ferrous sulfate includes the steps of placing iron shavings within a tank, introducing sulfuric acid and water into the...

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The preparation and characterization of ferrous sulphate hydrates.

Commercial dried ferrous sulphate BP is FeSO4,H2O but the method of preparation given in the BP produces FeSO4,4H2O which is the stable form at RH less...

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What Is Ferrous Sulfate Heptahydrate? (with pictures) - wiseGEEK

25 Feb 2015 ... Ferrous sulfate heptahydrate is an iron compound that is made when ... the production of sulfuric acid, but this method was superseded early in...

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Patent CN102115210A - Method for producing ferrous nitrate and ...

The invention provides a method for producing ferrous nitrate and calcium sulfate from waste acids generated during the production of titanium dioxide through...

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