PAPEMP Chemical – A Powerful Scale & Corrosion Inhibitor

What is our Polyamino Polyether Methylene Phosphonic Acid(PAPEMP) all about?

PAPEMP Chemical or Polyamino Polyether Methylene Phosphonic can be used as scale and corrosion inhibitor in circulating cooling water system, Boilers and oilfield of high hardness including Silica and Sulfate / Carbonate scale of Calcium, Magnesium and Barium, Strontium etc.

Properties

Polyamino Polyether Methylene Phosphonic Acid – PAPEMP is a new kind of water treatment agent. PAPEMP has high chelation and dispersion effects, high value of calcium tolerance, and good scale inhibition effects. PAPEMP can be used as scale and corrosion inhibitor in circulating cool water system and oilfield refill water system in situations of high hardness, high alkali and high pH value.

PAPEMP has excellent scale inhibition ability to calcium carbonate, calcium sulphate and calcium phosphate. Polyamino Polyether Methylene Phosphonic Acid – PAPEMP can efficiently inhibit the formation of silica scale, stabilise metal ions such as Zn, Mn and Fe.

PAPEMP Polyamino Polyether Methylene Phosphonic Acid (PAPEMPA) can be used as scale inhibitor for reverse osmosis system and multistep flash vaporisation system in which high salt concentration, high turbidity and high temperature are usually encountered (such as high temperature and high turbidity in coal vaporisation system), accessory agent for woven & dyeing (for example, yellow turn-back inhibition agent), as alternatives of EDTA, DTPA and NTA.

Synonym:

PHOSPHOMAN-230

Usage:

The dosage of 5-100mg/L is preferred. Different from other Water Treatment Chemicals, the more quantity is, the better the effect. PAPEMP can be built with polycarboxylic acids.

Specification:

Items	Index
Appearance	Light yellow to yellow transparent liquid
Active content %	40.0 min
Phosphorous acid (as PO43-)%	1.0 max
Density (20ºC) g/cm3	1.15 min
pH (1% water solution)	2.0 max

Package and Storage:

Normally In 250kg net Plastic Drum, IBC drum can also be used as required. Storage for ten months in room shady and dry place.

Applications:

– PAPEMP Polyamino Polyether Methylene Phosphonic Acid (PAPEMPA) has excellent scale inhibition ability to calcium carbonate, calcium sulphate and calcium phosphate.

– PAPEMP Chemical can efficiently inhibit the formation of silica scale, stabilise metal ions such as Zn, Mn and Fe. It effectively chelates metal ions including calcium, magnesium, iron and copper.

– PAPEMP can be used as scale inhibitor for reverse osmosis system and multi-step flash vaporisation system in which high salt concentration, high turbidity and high temperature are usually encountered (such as high temperature and high turbidity in coal vaporisation system, accessory agent for woven & dyeing (for example, yellow turn back inhibition agent), as alternatives of EDTA, DTPA and NTA.

Major Product Use :

Scale and corrosion inhibitor intermediate

CAS No.:

130668-24-5

Molecular Weight:

about 600

Structure Formula:

THE MATTER BELOW IS STRICTLY FOR INTERNAL USE OF THE PEOPLES / GROUPS ASSOCIATED WITH MANHAR SPECIALITIES AND IT IS MEANT FOR SHARING KNOWLEDGE ONLY AND HAS

NO PROFESSIONAL MOTTO INVOLVED

ABSTRACT

PAPEMP Polyamino Polyether Methylene Phosphonic Acid (PAPEMPA), when added to various industrial water systems in concentrations between 0.1 mg/L and 50 mg/L, stabilize soluble zinc, manganese and iron ions and their reaction products, in desirable forms and reduced particle sizes. In particular, this stabilization can be achieved under severe conditions which include elevated pH, high dissolved solids content, and high saturation levels of calcium carbonate.

STABILIZATION OF SOLUBLE MANGANESE AND ITS REACTION PRODUCTS:

Manganese ions are often found in well waters and cooling waters IN THE FORM OF carbonate, bicarbonate, sulfite, fluoride, chloride, sulfate, and so forth. Manganese/iron oxide and hydroxide are also present as a oxygen reaction products of manganese and iron which accelerate corrosion and reduce heat transfer.

Oxidation leads to precipitation of dark brown or black manganese oxides or hydroxides which are very insoluble. Manganese hydroxide is especially a problem. When these precipitates remain suspended in the water, they cause objectionable discoloration known as “black water”; when they settle out, black deposits form which can block lines, or act as catalysts causing further manganese deposition.

These deposits are very deleterious in textile and laundry operations as they interfere with dying processes and leave spots which are difficult to remove. They appear to increase the corrosion of copper. Manganese hydroxide is usually present as a colloidal suspension, when it does form a deposit, it readily becomes the site for the promotion of the deposit of other scaling materials, thereby accelerating scaling in general.

The PAPEMP Chemical, when used in accordance with the method of the present invention, can keep the reaction products of manganese described above in colloidal/fine dispersed form rather than the normal flocculant, adherent species. The manganese thus remains soluble so that it will not form particles which will precipitate out of solution and form scale.

STABILIZATION OF SOLUBLE IRON AND ITS REACTION PRODUCTS:

The present invention further relates to the use of PAPEMP Chemical to stabilize soluble iron ion and its reaction products in desirable forms and reduced particle sizes. Ferrous and ferric ions are often found in well waters while cooling waters contain primarily the ferric species. Iron ions are often present as the result of rusting of the iron piping used to transport the water in a cooling system. Iron carbonate, bicarbonate, sulfite, fluoride, chloride, sulfate, etc, and iron oxides (due to dissolved oxygen) may be present in both waters. Iron oxides can collect on metal surfaces and accelerate corrosion and reduce heat transfer.

Iron oxides (higher oxidation states) are insoluble and creates objectionable discoloration known as “red water”; when they settle out, red deposits form which can block lines, or act as catalysts causing further iron reaction product deposition. These deposits are very deleterious in textile and laundry operations as they interfere with dying processes and leave spots which are difficult to remove. Iron hydroxide is usually present as a colloidal suspension, when it does form a deposit and promotes the deposit of other scaling materials, thereby accelerating scaling in general.

The Polyamino Polyether Methylene Phosphonic, when used in accordance with the method of the present invention, can keep the reaction products of iron described above in colloidal/fine dispersed form rather than the normal flocculant, adherent species. The iron thus remains soluble so that it will not form particles which will precipitate out of solution and form scale.

The present invention further relates to the use of polyether polyamino methylene phosphonates to stabilize soluble zinc ion and its reaction products in desirable forms and reduced particle sizes. Zinc ions are often found in well waters, while cooling waters can also contain zinc ions. Zn salts and oxides present in cooling waters is often derived from the zinc metal used in making the copper and brass alloy piping used for transporting the cooling water. Zinc hydroxide has been found to be a particular problem. While it is usually present as a colloidal suspension, when it does form a deposit, it readily becomes the site for the promotion of the deposit of other scaling materials, thereby accelerating scaling in general.

The Polyamino Polyether Methylene Phosphonic Acid – PAPEMP, when used in accordance with the method of the present invention, can keep the reaction products of zinc described above in colloidal/fine dispersed form rather than the normal flocculant, adherent species. The zinc thus remains soluble so that it will not form particles which will precipitate out of solution and form scale.

Contact Us:

MAXWELL ADDITIVES PVT. LTD. (AN ISO 9001:2015 COMPANY)

E-94, Sardar Industrial Estate, Ajwa road,Vadodara-390019, Gujarat, INDIA

Phone: 91-265-2513595, 91-9879740104

E-mail: care@maxwelladditives.com

Web : www.maxwelladditives.com

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