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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, reductionget price

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 alkalineget price

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.get price

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.get price

The H-acid Effluent Problem Industrial Green Chemistry World

Jun 18, 2014 H-acid is one of the leading dye intermediates in the world, used in manufacture of black dyes. India is the second largest manufacturer of H-Acid in the world after China. However, H-acid is responsible for the most polluting industrial effluent in the dye and dye intermediate sector. Did you know that manufacturing 1 kgget price

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, integratedget price

Pollution prevention strategy at an H-acid manufacturing unit

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.get price

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 obtain the anhydride:get price

Solubility in water: Miscible

H Acid Caustic Fusion Stage SlideShare

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 get price

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 outget price

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 get price

h acid manufacturing process rodiziogrill.be

H Acid Manufacturing Process wildcer. H Acid: Hacid (8amino1naphthol3,6disulfonic acid) has both functional groups and can be selectively coupled to two diazo components in a twostep process. C.I. Acid Black 1 is formed by coupling first to diazotized pnitroaniline in weakly acidic solution and then to diazotized aniline in alkaline solution.get price

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.get price

Pollution prevention strategy at an H-acid manufacturing unit

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.get price

Biodegradation of H acid by Bacillus subtilis and RP-HPLC

The traditional biodegradation process cannot eliminate H-acid completely due to the stable chemical structure (Ecological and Toxicological Association of the Dyestuffs Manufacturing Industryget price

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.get price

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].get price

AP42 8.8 Nitric Acid Production US EPA

high-strength nitric acid production from weak nitric acid. 8.8.3 Emissions And Controls 3-5 Emissions from nitric acid manufacture consist primarily of NO, NO 2 (which account for visible emissions), trace amounts of HNO 3 mist, and ammonia (NH 3). By far, the major source of nitrogen oxides (NO x) is the tailgas from the acid absorption towerget price

H Acid Caustic Fusion Stage SlideShare

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 get price

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.get price

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.get price

Sulfonation and Sulfation Processes Chemithon

Sulfonation and Sulfation Processes Norman C. Foster, Ph.D., P.E. Sulfuric Acid / Oleum H O S O H + (CH2)11 CH3 Sulfuric acid O O Alkyl benzene products. However, it is a continuous process best suited to large production volumes. In addition, it requires expensive precision equipment and highly trained operatingget price

Sulfuric Acid Handbook NorFalco

Sulfuric Acid Handbook An information source for industrial consumers, handlers, transporters and other users. Delivering MORE than H 2 SO 4 norfalco Published April 2007. CONTENTS Introduction page 1 Quality and facilities page 4 The production process page 6 General properties of sulfuric acid (graphs, tables and data) page 8get price

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.get price

Biodegradation of H acid by Bacillus subtilis and RP-HPLC

The traditional biodegradation process cannot eliminate H-acid completely due to the stable chemical structure and variable color of the acid (Khan et al., 2016). Chemical treatments are alsoget price

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 organicget price

PHOSPHORIC ACID MAKING PROCESS..METHODS.. ARTICLES

articles / phosphoric acid making process..methods.. Phosphorus is an essential plant nutrient and is taken up by plant roots, usually as the dihydrogenphosphate ion, H 2 PO 4,derived from phosphoric acid, H get price

The Cativa'' Process for the Manufacture of Acetic Acid

acetic acid is explained below. The Rhodium-Based Monsanto Process 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 temper- atures of 150 to 200°C. The process gives selectivity of get price

Sulfuric Acid Handbook NorFalco

Sulfuric Acid Handbook An information source for industrial consumers, handlers, transporters and other users. Delivering MORE than H 2 SO 4 NorFalco, as well as on the sulfuric acid manufacturing process, transportation options, storage practices, safe handling and emergencyget price

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.get price

AP42 8.8 Nitric Acid Production US EPA

high-strength nitric acid production from weak nitric acid. 8.8.3 Emissions And Controls 3-5 Emissions from nitric acid manufacture consist primarily of NO, NO 2 (which account for visible emissions), trace amounts of HNO 3 mist, and ammonia (NH 3). By far, the major source of nitrogen oxides (NO x) is the tailgas from the acid absorption towerget price

Understanding the 3 Different Nitric Acid Production

The manufacturing of nitric acid for use in fertilizers, plastics, dyes, textiles, and other industrial products, has evolved to three industry-standard processes. They all produce acid with 60-68% concentration, and each uses essentially the same nitric acid plant design.get price

US1670406A Process of preparing h-acid Google Patents

patented may 22, 1928. united states patentvoffice. ivan gubelmann and john m. tinker, of south milwaukee, wisconsin, as- signobs to. the newport company, of carrollville, wisconsin, a cob/- pobation delaware process of preparing h-acid.get price

Production Methods for Hyaluronan hindawi

Abstract. 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.get price

12.15 Storage Battery Production US EPA

operation as paste or metal. In recent years, however, the general trend in the lead-acid battery manufacturing industry has been to send metals to secondary lead smelters for reclamation. 12.15.3 Emissions And Controls3-9,13-16 Lead oxide emissions result from the discharge of air used in the lead oxide production process.get price

Lactic acid production to purification: A review

Production by the fermentation process has attracted interest because of its advantages, which are the production of pure isomers (L(+)- or D(-)-lactic acid), use of renewable and low cost raw materials, low energy consumption, and mild conditions required for operation.get price

Projects by Market Performed by Process Engineering Associates

Ammunitions Production Facility Acid Systems Process Hazards Analysis (PHA) Feasibility Study, Alternatives Evaluation and Prelim Design for Converting Batch to Continuous Oxyalkylates Resin Process. FEL-1 Preliminary Design Package for a New Colloidal Silica Plant .get price

Mechanisms of increased acid secretion after eradication

Eradication of Helicobacter pylori infection leads to recovery of gastric acid secretion in some individuals but the mechanism is not fully understood. In the short term, there is an impressive increase in expression of H + /K + ‐ATPase pumps without an increase in the number of parietal cells.get price