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US2645561A - Sodium sulfate recovery - Google Patents

Thus, the primary problems in the regeneration and reclamation of such coagulating baths are (a) the removal of excess water and, (b) the removal of excess sodium sulfate. Several methods have been proposed heretofore for the regeneration and reclamation of the coagulating bath constituents.

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(PDF) Sodium Sulphate Recovery from Industrial Wastewater ...

This paper review the efforts made for separation of Sodium sulphate from aqueous streams using membrane processes and applicability of nanofiltration membrane for recovery of sodium sulphate to ...

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US2333138A - Recovery of sodium sulphate - Google Patents

Recovery of sodium sulphate Download PDF Info Publication number US2333138A. US2333138A US361906A US36190640A US2333138A US 2333138 A US2333138 A US 2333138A US 361906 A US361906 A US 361906A US 36190640 A US36190640 A US 36190640A US 2333138 A US2333138 A US 2333138A Authority US United States Prior art keywords sodium sulphate crystals deposit basin …

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Sodium Sulphate Recovery from Industrial Wastewater Using ...

Sodium Sulphate Recovery from Industrial Wastewater Using Nano-Membranes: a Review R. S. Gawaad 1, S. K. Sharma 2, S. S. Sambi 3 _____ Abstract A …

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Recovery of sodium chloride, sodium sulphate and sodium ...

Recovery of sodium chloride, sodium sulphate and sodium carbonate from Sambhar Lake brine—A theoretical study. V R K S Susarla 1, J M Parekh 1 & U V Chitnis 1 Proceedings of the Indian Academy of Sciences - Chemical Sciences volume 103, pages 9–16 (1991)Cite this article. 57 Accesses. Metrics details. Abstract. Sambhar Lake brine contains predominantly sodium chloride, sodium sulphate and ...

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Sodium sulphate recovery in effluent purification in the ...

Sodium sulphate recovery in effluent purification in the nitron fibre sector. Yu. V. Filatov, V. I. Zamelin & Yu. N. Kabanov Fibre Chemistry volume 5, pages 421–422 (1973)Cite this article. 16 Accesses. Metrics details. Download to read the full article text Authors. Yu. V. Filatov. View author publications. You can also search for this author in PubMed Google Scholar. V. I. Zamelin. View ...

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Sodium Sulphate Recovery from Industrial Wastewater Using ...

Sodium Sulphate Recovery from Industrial Wastewater Using Nano-Membranes: a Review R. S. Gawaad 1, S. K. Sharma 2, S. S. Sambi 3 _____ Abstract A …

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US 4173624 A - Recovery Of Sodium Sulphate In Production ...

Recovery Of Sodium Sulphate In Production Of Iron Oxide Black Pigments. Published: Nov 6, 1979 Earliest Priority: Mar 25 1976 Family: 1; Cited Works: 1; Cited by: 2; Cites: 3; Additional Info: Full text ; Granted Patent US 4173624 A 151-065-868-884-318 ...

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Sodium Sulphate Recovery and Reuse Plant at Largo, Brazil ...

03/03/2017· Sodium sulphate recovery and reuse in Brazil, helps the vanadium industry reduce costs. THE CHALLENGE The Largo Resources Vanadio de Maracas project needed the recovery of sodium sulphate from a concentrated mother liquor stream containing sodium and ammonium sulphates, chlorides and saturated with calcium sulphate.

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Chemical Recovery At The Sulphate Pulp Millsodium Sulphate

Chemical Recovery At The Sulphate Pulp Millsodium Sulphate. Higher solids in the concentrated black liquor increases the energy and chemical efficiency of the recovery cycle, Pulp produced by the kraft process is stronger than that made by other pulping processes and maintaining a …

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Sulphate removal from sodium sulphate-rich brine and ...

Sulphate removal from sodium sulphate-rich brine using barium hydroxide and recovery of the barium salts has been investigated. The sodium sulphate-rich brine treated with different dosages of barium hydroxide to precipitate barium sulphate showed sulphate removal from 13.5 g/L to less than 400 mg/L over 60 min using a barium to sulphate molar ratio of 1.1.

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Sodium Sulfate - an overview | ScienceDirect Topics

17.11.2 Recovery of Caustic Soda and Sulfuric Acid from Sodium Sulfate (Mani et al., 1988) Sodium sulfate is generated as a waste or byproduct in many operations such as waste acid neutralization, ion exchange regeneration, flue-gas desulfurization, and rayon manufacture. Sulfate concentration in a given stream is low, such as in waste acid neutralization, or high, such as in rayon manufacture ...

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Sulphate removal from sodium sulphate-rich brine and ...

15/03/2013· Abstract Sulphate removal from sodium sulphate-rich brine using barium hydroxide and recovery of the barium salts has been investigated. The sodium sulphate-rich brine treated with different dosages of barium hydroxide to precipitate barium sulphate showed sulphate removal from 13.5 g/L to less than 400 mg/L over 60 min using a barium to sulphate molar ratio of 1.1.

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sodium sodium sulphate recovery plants andhra pradesh

We have also supplied Causc Recovery Plants in Texle Sodium Sulphate + Glycerine Sodium Sulphate + Glycerine NH4SO4 + ATFD NH4SO4 + ATFD Waste Water Waste Water M Pradesh Andhra Pradesh Andhra Pradesh Delhi Noida Bangalore 350 120 70 120 80 40 20 30 10 06 + 05 01 01 01 10 30 15 10 10 30 100 160 100 20 20 35 30 10 15 50 60 15. Sodium Hypochlorite in Andhra pradesh . Find Sodium …

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Salt Recovery Plant | Chem Process Systems

Chem Process Systems is a leading supplier of Salt and Product Recovery Plants, with each product being treated having a different plant type. Our engineers are experts at designing such solutions and products. A partial list of treated salts and products is listed below and explains our level of …

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Sodium sulphate recovery in effluent purification in the ...

Sodium sulphate recovery in effluent purification in the nitron fibre sector. Yu. V. Filatov, V. I. Zamelin & Yu. N. Kabanov Fibre Chemistry volume 5, pages 421–422 (1973)Cite this article. 16 Accesses. Metrics details. Download to read the full article text Authors. Yu. V. Filatov. View author publications. You can also search for this author in PubMed Google Scholar. V. I. Zamelin. View ...

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A Process For The Recovery Of Sodium Sulphate From The ...

The present invention relates to a process for the recovery of sodium sulphate from the brine resulting from Nanofiltration system in chloralkali process. The sodium soleplate recovered from the process of the present invention is stable, crystalline and anhydrous which is useful for paper, detergent and pharma industries. The process of the present invention not only produces commercially ...

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Recovery of sodium sulphate from a reverse osmosis ...

Recovering sodium sulphate from a mining wastewater was recently researched (Reddy, et al., 2010), EFC of a RO concentrate, which had a similar concentration as eutectic composition, was succeed and a recovery of over 90% of pure sodium sulphate crystals was obtained from concentrated streams. 1.2 Wastewater from silica industry In this thesis, wastewater from a silica-production company ...

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US 4173624 A - Recovery Of Sodium Sulphate In Production ...

Recovery Of Sodium Sulphate In Production Of Iron Oxide Black Pigments. Published: Nov 6, 1979 Earliest Priority: Mar 25 1976 Family: 1; Cited Works: 1; Cited by: 2; Cites: 3; Additional Info: Full text ; Granted Patent US 4173624 A 151-065-868-884-318 ...

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Recovery of sodium sulphate in production of iron oxide ...

In the production of ferric oxide black pigments with the simultaneous recovery of sodium sulphate wherein ferrous sulphate is reacted with an alkaline sodium compound at a pH above about 6 and a temperature above about 50° C., and the pigment formed is separated from the mother liquor containing sodium sulphate, the improvement which comprises conducting the reaction at a sodium sulphate ...

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Chemical Recovery At The Sulphate Pulp Millsodium Sulphate

Chemical Recovery At The Sulphate Pulp Millsodium Sulphate. Higher solids in the concentrated black liquor increases the energy and chemical efficiency of the recovery cycle, Pulp produced by the kraft process is stronger than that made by other pulping processes and maintaining a …

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Recovery of sodium chloride, from

Recovery of sodium chloride, sodium sulphate and sodium carbonate from Sambhar Lake brine-A theoretical study V R K S SUSARLA*, J M PAREKH and U V CHITNIS Central Salt and Marine Chemicals Research Institute, Bhavnagar 364 002, India MS received 20 February 1990, revised 31 August 1990 Aimraet. Sambhar Lake brine contains predominantly sodium chloride, sodium sulphate and sodium …

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Selective salt recovery Case Study - Jordproxa

Selective Salt Recovery Sasol South Africa A ZLD plant with staged thermal evaporation and crystallisation to produce by-products from an effluent mine water feed, eliminate the need for disposal of mixed salts at a landfill site and make water available...

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Sulphate removal from sodium sulphate-rich brine and ...

15/03/2013· Abstract Sulphate removal from sodium sulphate-rich brine using barium hydroxide and recovery of the barium salts has been investigated. The sodium sulphate-rich brine treated with different dosages of barium hydroxide to precipitate barium sulphate showed sulphate removal from 13.5 g/L to less than 400 mg/L over 60 min using a barium to sulphate molar ratio of 1.1.

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A comparative study of vanadium recovery from titaniferous ...

of cumulative vanadium recovery, the roast-leach process is reported to be superior to the smelting ... Typical sodium sources include salt (NaCl), sodium sulphate (Na 2SO 4), and soda ash (Na 2CO 3) (Gupta and Krishnamurthy, 1992; Mefos, 2006). The focus of the current study was to compare the effects of the typical sodium sources on the efficiency of the subsequent vanadium extraction from ...

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