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h acid manufacturing process

  • H-acid manufacturing process SlideShare

    Feb 08, 2017· 1. H-ACID MANUFACTURING SUBJECT : CHEMICAL PROCESS INDUSTRIES-II STUDENT NAME : SINDHAV JAYDRATH P.– 160283105011 LDCE GTU 2. INTRODUCTION H-Acid (l-amino-8-hydroxynaphthalene-3,6- disulfonic acid), an important dye intermediate, is produced from naphthalene by a combination of the unit processes of sulfonation, nitration,

  • H Acid chemistry Britannica

    H-acid (8-amino-1-naphthol-3,6-disulfonic acid) has both functional groups and can be selectively coupled to two diazo components in a two-step process. C.I. Acid Black 1 is formed by coupling first to diazotized p-nitroaniline in weakly acidic solution and then to diazotized aniline in alkaline

  • Pollution prevention strategy at an H-acid manufacturing unit

    Manufacturing process and waste generation H-acid production was a batch process. On aver- age, 30-34 batches were carried out in a month. Naphthalene was the starting material for H- acid synthesis. It was subjected to a series of chemical reactions like sulphonation, nitration followed by neutralization, reduction, fusion and isolation.

  • Everything You Need to Know about H-acid Manufacturing

    Jun 24, 2017· H-acid is extracted from naphthalene through a process that combines a number of steps including nitration, hydrolysis and suffocation. The chemicals used are sulphuric acid, Oleum, naphthalene, nitric acid, lime slurry, global salt, iron powder, soda ash and caustic flex. Most manufacturing units belong to the small and SME sector.

  • Decolorisation of H-acid manufacturing process wastewater

    Abstract. Anion exchange resin was employed to examine the feasibility to treat the H-acid manufacturing wastewater by column experiment. Besides the acidity recovery, the decoloring efficiency and chemical oxygen demand (COD) removal efficiency of the anion exchange resin was investigated in the experiments.

  • Published in: Coloration Technology · 2007Authors: Zhen Yuan · Ping Yu · Yunbai LuoAffiliation: Wuhan University
  • Acetic acid Wikipedia

    The worldwide production of acetic anhydride is a major application, and uses approximately 25% to 30% of the global production of acetic acid. The main process involves dehydration of acetic acid to give ketene at 700–750 °C. Ketene is thereafter reacted with acetic acid to

  • Solubility in water: Miscible
  • Pollution prevention strategy at an H-acid manufacturing

    Pollution prevention strategy at an H-acid manufacturing unit H-acid (1-Amino, 8-Naphtol, 3-6 disulphonic acid) is a dye intermediate. In India, it is mainly manufactured by small and medium-sized enterprises (SMEs) with a production capacity of between 10 and 100 tonnes per month.

  • H Acid Caustic Fusion Stage

    Mar 11, 2014· H Acid Caustic Fusion Stage CONTENTS 0 INTRODUCTION 1 DESIGN INFORMATION 1.1 Reactor Type 1.2 Temperature Range 1.3 Pressure Range 1.4 Chemical System 2 BACKGROUND 3 KINETICS AND MECHANISM 4 MAXIMUM YIELD AND IMPLICATIONS FOR REACTOR DESIGN 5 USE OF DESIGN MODEL FOR START-UP AND MANUFACTURING

  • H-ACID, Dye Intermediate, Chemicals Manufacturer

    Panoli Intermediates Manufacturers and exporters of dye intermediate, chemicals manufacturer, industrial chemicals manufacturers, chemicals supplier, industrial dye intermediate, supplier of chemicals, chemical exporter, chemicals suppliers, industrial chemicals, dye intermediate manufacturer, indian industrial chemicals, industrial chemicals, industrial chemicals and dye,

  • H-Acid: Processing Technology, Products, Market, Trade

    H-acid production is a batch process; The process steps to produce proper dyes are: Known quality of raw materials, Possible mole to mole reaction Optimal pH control, Optimal Temperature control, Standardized the reaction efficiency and try to continuous improve it, Avoid filtration of dye if possible and adopt spay drying in house or out

  • Pollution prevention strategy at an H-acid manufacturing

    Pollution prevention strategy at an H-acid manufacturing unit H-acid (1-Amino, 8-Naphtol, 3-6 disulphonic acid) is a dye intermediate. In India, it is mainly manufactured by small and medium-sized enterprises (SMEs) with a production capacity of between 10 and 100 tonnes per month.

  • The Manufacture of Nitric Acid Johnson Matthey

    Nitric acid production by the oxidation of ammonia on platinum gauzes constitutes one of the world’s major chemical industries. In this article the author outlines some of the principal features of this process, and describes in some detail the chemical reaction taking place at the platinum surface. He also discusses the changes that occur in the gauze leading to metal loss during operation.

  • The Contact Process for the manufacture of sulphuric acid

    This page describes the Contact Process for the manufacture of sulphuric acid, and then goes on to explain the reasons for the conditions used in the process. It looks at the effect of proportions, temperature, pressure and catalyst on the composition of the equilibrium mixture, the rate of the reaction and the economics of the process.

  • PRODUCTION OF SULPHURIC ACID Product Stewardship

    production. Whereas in 1991 smelter acid production amounted to 27.98 millions tonnes, it is calculated that the output in the following decade will have grown to reach 44.97 millions tonnes in 2001. Smelter acid will be more than 25% of world sulphuric acid production com-pared to some 18% in 1991.

  • Manufacturing of nitric acid by Ostwald process Medium

    Nov 11, 2016· Nitric acid is a colourless liquid that is used in the manufacture of inorganic and organic nitrates and nitro compounds for fertilizers, dye intermediates, explosives, and many different organic

  • Sulfonation and Sulfation Processes

    waste acid must be separated from the reaction mixture and subsequently disposed. In North America, the expense of disposing the "spent" sulfuric acid has become so high that the process economics are now questionable. Sulfonation with sulfuric acid is a special case of oleum sulfonation. Because the

  • Sulphuric Acid Plant Fundamentals

    into SO 2 and H 2O to be regenerated in to fresh acid and plants that take waste sulphur gases (H 2S, CS 2) to produce acid. Some plants are a combination of two types of plants. Sulphur is sometimes burned in acid regeneration and metallurgical plants to increase SO 2 concentration and meet acid production requirements.

  • Manufacturing Process of Rosin, Terpene, Tall Oil, Resin

    Oct 15, 2016· Manufacturing Process of Rosin, Terpene, Tall Oil, Resin & Dimer Acids (Oleoresin and Pine Chemicals) Terpenoids, Turpentine, Terpene based Adhesives, Peroxides from Turpentine, Terpene Resins

  • Author: Niir Project Consultancy Services Delhi
  • Amino acids production focusing on fermentation

    Although the production processes of amino acids have been extensively investigated in previous studies, a comprehensive overview of the developments in bioprocess technology has not been reported yet. This review states the importance of the fermentation process for industrial amino acids production, underlining the strengths

  • Ostwald's process [ Formation of Nitric Acid ] YouTube

    Jun 25, 2018· Nitric acid manufacturing process in hindi || Chemical Pedia Duration: Contact Process ~ Manufacture of Sulphuric acid by Cotact Process Duration: 13:34. Pravendra Tomar [ PT Sir

  • Author: Pravendra Tomar [ PT Sir ] IITJEE,NEET
  • Application of ferrous-hydrogen peroxide for the treatment

    1-Amino-8-naphthol-3,6-disulfonic acid (H-acid) is widely used in chemical industries for synthesis of direct, acid, reactive and azoic dye. The wastewater from H-acid manufacturing process is rich in various substituted derivatives of naphthalene and is one of the most hardly-treated wastewaters.

  • The Cativa™ Process for the Manufacture of Acetic Acid

    The production of acetic acid by the Monsanto process utilises a rhodium catalyst and operates at a pressure of 30 to 60 atmospheres and at temperatures of 150 to 200°C. The process gives selectivity of over 99 per cent for the major feed-stock, methanol .

  • MANUFACTURING PROCESS OF LIQUID AMINO ACİD

    ARTICLES MANUFACTURING PROCESS OF LIQUID AMINO ACİD FERTILIZER. For Plant: making organic compost, types of organic compost,manufacturing process of organic compost, h ow to make organic compost fertilizers, production of organic fertilizers, manufacturing process solid humic acid

  • Process for producing 8-amino-1-naphthol-3,6-disulfonic acid

    Sep 05, 1978· What is claimed is: 1. In the process for producing 8-amino-1-naphthol-3,6-disulfonic acid from naphthalene by trisulfonation, nitration, reduction, alkali fusion and acidification precipitation, the improvement comprising acidifying the alkali fusion mixture with the nitration reaction mixture to precipitate the partial alkali metal salt of 8-amino-1-naphthol-3,6-disulfonic acid which is

  • Authors: Norio Kotera · Hiromichi Okabe · Hiroshi KorenagaAffiliation: Sumitomo Chemical
  • Application of ferrous-hydrogen peroxide for the treatment

    1-Amino-8-naphthol-3,6-disulfonic acid (H-acid) is widely used in chemical industries for synthesis of direct, acid, reactive and azoic dye. The wastewater from H-acid manufacturing process is rich in various substituted derivatives of naphthalene and is one of the most hardly-treated wastewaters.

  • MANUFACTURING PROCESS OF LIQUID AMINO ACİD

    ARTICLES MANUFACTURING PROCESS OF LIQUID AMINO ACİD FERTILIZER. For Plant: making organic compost, types of organic compost,manufacturing process of organic compost, h ow to make organic compost fertilizers, production of organic fertilizers, manufacturing process solid humic acid

  • The Cativa™ Process for the Manufacture of Acetic Acid

    The production of acetic acid by the Monsanto process utilises a rhodium catalyst and operates at a pressure of 30 to 60 atmospheres and at temperatures of 150 to 200°C. The process gives selectivity of over 99 per cent for the major feed-stock, methanol .

  • Decolorisation of H‐acid manufacturing process wastewater

    Anion exchange resin was employed to examine the feasibility to treat the H‐acid manufacturing wastewater by column experiment. Besides the acidity recovery, the decoloring efficiency and chemical oxygen demand (COD) removal efficiency of the anion exchange resin

  • Cellulose (dissolving pulp) manufacturing processes and

    Full Article. Cellulose (Dissolving Pulp) Manufacturing Processes and Properties: A Mini-Review. Chunxia Chen, a,b Chao Duan, a,c Jianguo Li, a,c Yishan Liu, a,d Xiaojuan Ma, a,e Linqiang Zheng, a Jaroslav Stavik, f and Yonghao Ni a,c, * The increasing consumption of regenerated cellulose, in particular the viscose fiber, has led to a significant development of dissolving pulps in the last decade.

  • Overview of citric acid production from Aspergillus niger

    Citric acid, or 2-hydroxy-propane-1,2,3-tricarboxylic acid (C 6H 8O 7.H 2O) (Figure 1), is a naturally occurring weak organic acid found in all citrus fruits. The name of this organic acid is derived from Latin word citrus, which refers to trees of the genus Citrus, including lemon trees. Citric acid in its pure form is readily soluble in water

  • Application of catalytic wet air oxidation for the

    All the H-acid is decomposed in 5 min and is oxidized into NH 4 +, SO 4 2−, formic acid, acetic acid and other end products. The pH value can greatly affect the COD removal and the production of organic acid. CWAO process not only can get a high reaction rate, but also can oxidize the short-chain organic acid.

  • FORMULATION AND MANUFACTURING PROCESS OF HUMIC ACID

    articles formulation and manufacturing process of humic acid Leonardite refers to slack (oxidized) lignite; typically found in North Dakota, Wyoming and other locations around the world [the term was first coined by Dr. Leonard at the University of ND].

  • Lactic acid production to purification: A review

    Full Article Lactic Acid Production to Purification: A Review. Andrea Komesu, a, * Johnatt Allan Rocha de Oliveira, b Luiza Helena da Silva Martins, a Maria Regina Wolf Maciel, a and Rubens Maciel Filho a Lactic acid is a naturally occurring organic acid that can be used in a wide variety of industries, such as the cosmetic, pharmaceutical, chemical, food, and, most recently, the medical

  • Process for producing 8-amino-1-naphthol-3,6-disulfonic acid

    Sep 05, 1978· What is claimed is: 1. In the process for producing 8-amino-1-naphthol-3,6-disulfonic acid from naphthalene by trisulfonation, nitration, reduction, alkali fusion and acidification precipitation, the improvement comprising acidifying the alkali fusion mixture with the nitration reaction mixture to precipitate the partial alkali metal salt of 8-amino-1-naphthol-3,6-disulfonic acid which is

  • Authors: Norio Kotera · Hiromichi Okabe · Hiroshi KorenagaAffiliation: Sumitomo Chemical
  • H ACID (1-AMINO-8-HYDROXYNAPHTHALENE-3,6-DISULFONIC ACID

    Short carbon chain metallic sulfonate is used in electroplating which is a process for applying a metallic coating on a metal surface by electrodeposition from a suitable electrolyte solution for imparting corrosion resistance and direct production of printed circuit boards without etching out of a piece of copper sheet. H-Acid (1-amino-8

  • Understanding the 3 Different Nitric Acid Production

    Which is the Best Nitric Acid Production Process? All three processes have their place in nitric acid plant design, depending on strategic goals and other factors. Initial investment in medium- and high-pressure mono process plants are generally lower than those required for dual-pressure facilities.

  • Production Methods for Hyaluronan

    Hyaluronan is a polysaccharide with multiple functions in the human body being involved in creating flexible and protective layers in tissues and in many signalling pathways during embryonic development, wound healing, inflammation, and cancer. Hyaluronan is an important component of active pharmaceutical ingredients for treatment of, for example, arthritis and osteoarthritis, and its

  • Projects by Market Performed by Process Engineering Associates

    Grassroots Sulfamic Acid Production Facility Preliminary Process Design. Shaft Kiln MgO Production Process Engineering Support. Plant Water Distribution System Evaluation and Troubleshooting. Modular Skid Designs for Fragrance Production. Sodium Bicarbonate Plant FEL-2 Process Design and Cost Estimate. Hydrogenator Troubleshooting and Evaluation

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