manufacturing process of calcium hypochlorite by chlorine method

Process for the production of calcium hypochlorite ...

The calcium hypochlorite compositions prepared by the novel process of the present invention usually have an available chlorine content of up to about 50 percent, for example, in the range of from about 45 to about 50 percent by weight of Ca(OCl) 2. In addition to calcium hypochlorite, the compositions contain an alkali metal chloride.

(DOC) PRODUCTION OF CALCIUM HYPOCHLORITE | idris atadashi ...

9 Calcium hypochlorite demand in the USA Year Demand (Tons) 1970 42184 1971 45178 1972 48081 1973 51710 1974 55338 1975 65517 2.3.4 Manufacturing process In the past, the standard method was to pass chlorine over beds of slaked lime contained in large chambers, which were arranged in a continually changing sequence so that freshly charged ...

US3584996A - Manufacture of calcium hypochlorite - Google ...

calcium hypochlorite is produced with relatively low calcium chloride content, by chlorinating an aqueous suspension of calcium hydroxide, removing liquid from the suspension on a filter or centrifuge to produce a cake, and contacting the cake with an aqueous sodium hypochlorite solution while maintaining the cake on the filter or centrifuge.

Hypochlorite Production General Information

Sodium hypochlorite production equipment starting in 1964 with filtration since 1983 75% of NaOCl in US made on Powell equipment 90% in Canada Significant production in other countries – Brazil, 80% Mexico, 80% Chile, Taiwan, Philippines, 65% Costa Rica, Saudi Arabia and others Chlorine scrubbing and chlorine valve emergency shutoff systems

(DOC) PRODUCTION OF CALCIUM HYPOCHLORITE | idris

9 Calcium hypochlorite demand in the USA Year Demand (Tons) 1970 42184 1971 45178 1972 48081 1973 51710 1974 55338 1975 65517 2.3.4 Manufacturing process In the past, the standard method was to pass chlorine over beds of slaked lime contained in large chambers, which were arranged in a continually changing sequence so that freshly charged ...

Production process of calcium hypochlorite_ENOCHLOR

Nov 22, 2019 · At present, there are three main types of calcium hypochlorite production methods, namely, calcium process, sodium process and hypochlorous acid process: the calcium process route is shown in Figure 1. First, a lime slurry is added to the chlorination tank, and then chlorine gas is introduced therein to carry out a chlorination reaction.

Hypochlorite Production General Information

Sodium hypochlorite production equipment starting in 1964 with filtration since 1983 75% of NaOCl in US made on Powell equipment 90% in Canada Significant production in other countries – Brazil, 80% Mexico, 80% Chile, Taiwan, Philippines, 65% Costa Rica, Saudi Arabia and others Chlorine scrubbing and chlorine valve emergency shutoff systems

Technology Profile: Calcium Hypochlorite Production ...

Nov 01, 2017 · This flow diagram depicts a typical sodium process for production calcium hypochlorite[/caption] The process The following paragraphs describe the production of calcium hypochlorite (70 wt.%) from slaked lime, sodium hydroxide and chlorine, a typical, so-called “sodium process.” Figure 1 presents a simplified flow diagram of the process.

Process for producing calcium hypochlorite - PPG ...

In the process of the present invention, the neutral calcium hypochlorite-containing moist cake is dried with hot, e.g., 330°-350° F. (166°-177° C.), dry air while maintaining the product temperature in the range of from about 60° F. (15.6° C.) to about 180° F. (82° C.) and preferably from about 75° F. (24° C.) to about 120° F. (49 ...

(PDF) PRODUCTION OF CALCIUM HYPOCHLORITE

This work is focus on the production of calcium hypochlorite, this was achieved by running chlorine gas into four sample bottles containing prepared solution of Ca(oH) at the same flow rate but at ...

Calcium Hypochlorite | Applications and Specifications

Calcium hypochlorite is manufactured using the calcium process, where chlorine is added to calcium hydroxide, yielding calcium hypochlorite, calcium chloride and water. However, this method was not very effective and became obsolete. It was replaced by the sodium process, which accounts for 70% of the total production of calcium hypochlorite.

Calcium Hypochlorite - 3V Tech

Calcium Hypochlorite (Ca(OCl) 2) is an inorganic compound, marketed as granules or tablets, used for water treatment and as bleaching agent due the very high content of available chlorine, 65-70%, greater than sodium hypochlorite. Calcium hypochlorite production process basically consists of hydrated lime reaction with gaseous chlorine. OVERCHLOR®: OUR PATENTED PROCESS FOR CALCIUM HYPOCHLORITE

Sodium Hypochlorite Handbook - Occidental Petroleum

a solution of calcium hypochlorite by chlorinating a slurry of relatively inexpensive lime. The following year he patented a process for the manufacture of bleaching powder where chlorine gas was absorbed in a dry lime hydrate. Labarraque succeeded, in 1820, in preparing sodium hypochlorite by chlorinating a solution of caustic soda.

Stable calcium hypochlorite composition and method for ...

A stable calcium hypochlorite composition and a method for the preparation thereof. The composition has a calcium hypochlorite anhydride and/or a calcium hypochlorite dihydrate used as main constituent and comprises at least 60 wt % of calcium hypochlorite; at least 5 wt % of calcium hydroxide; at least 4 wt % of water content; and 5 wt % or less of than that calcium chloride.

The method of disposal and recycling of hypochlorite solutions

A method of obtaining calcium chloride from solutions of hypochlorite, in which the decomposition of active chlorine is carried out using ammonia (German patent N 4204319 CO1, CO5, CO6, R.J. "Yasny trichloride nitrogen and in addition, the full decomposition of the available chlorine does not occur.

Bleaching powder manufacturing process, uses, reactions

Bleaching powder manufacturing process, uses, reactions. Bleacing powder is calcium hypochlorite ( Ca(OCl) 2).It is a one of the major chemical industry in the world. Limestone and chlorine gas are used as raw materials to manufacture bleaching powder which is used as a disinfectant and as an oxidizing agent.

Sodium Hypochlorite Production Cost Reports | Q1 2021

This report presents the economics of Calcium Hypochlorite (70 wt%) production from slaked lime, sodium hydroxide and chlorine via a typical sodium process. In this process, chlorine is passed into a slurry of slaked lime and sodium hydroxide, generating calcium hypochlorite and sodium chloride.

Calcium Hypochlorite - Water Safety Magazine

May 28, 2020 · Calcium Hypochlorite (Cal-Hypo). M any of us relate swimming pools, and even fun summer time, when thinking about chlorine. Calcium Hypochlorite is the most popular powder sanitizer among private swimming pool owners. It is an inorganic compound with formula Ca(ClO) 2. This compound is relatively stable and has greater available chlorine than sodium hypochlorite (liquid

Current Technology of Chlorine Analysis

Chlorine usually is added to water as the gaseous form or as sodium or calcium hypochlorite. Chlorine gas rapidly hydrolyzes to hypochlorous acid according to the following equation: Cl 2 + H 2 O → HOCl + H + + Cl— Similarly,aqueous solutions of sodium or calcium hypochlorite will hydrolyze according to: Ca(OCl) 2 + 2H 2 O → Ca 2+ + 2HOCl ...

Bleaching powder manufacturing process, uses, reactions

Bleaching powder manufacturing process, uses, reactions. Bleacing powder is calcium hypochlorite ( Ca(OCl) 2).It is a one of the major chemical industry in the world. Limestone and chlorine gas are used as raw materials to manufacture bleaching powder which is used as a disinfectant and as an oxidizing agent.

Chlorine - Crops Draft

150 manufactured by chemical processes. The chemical manufacturing processes for calcium hypochlorite, 151 sodium hypochlorite, and chlorine dioxide are described below. 152 153 Calcium Hypochlorite6 154 155 Calcium hypochlorite is produced by passing chlorine gas over slaked lime.7 It is then separated from the

Calcium Hypochlorite - an overview | ScienceDirect Topics

Dan Askenaizer, in Encyclopedia of Physical Science and Technology (Third Edition), 2003. IV.A.3 Calcium Hypochlorite. Calcium hypochlorite is a white solid that contains 65% available chlorine and dissolves easily in water. Calcium hypochlorite is very stable and can be stored for an extended period of time. Calcium hypochlorite is a corrosive material with a strong odor.

The method of disposal and recycling of hypochlorite solutions

A method of obtaining calcium chloride from solutions of hypochlorite, in which the decomposition of active chlorine is carried out using ammonia (German patent N 4204319 CO1, CO5, CO6, R.J. "Yasny trichloride nitrogen and in addition, the full decomposition of the available chlorine does not occur.

Calcium Hypochlorite Suppliers, CAS No. 7778-54-3

Manufacturing Process. Calcium Process Calcium hypochlorite is manufactured using the calcium process, where chlorine is added to calcium hydroxide, yielding calcium hypochlorite, calcium chloride and water. However, this method was not very effective and became obsolete. It was replaced by the sodium process, which accounts for 70% of the ...

How To Choose The Best Calcium Hypochlorite Supplier ...

Jan 31, 2020 · Calcium Process. This can be said as calcium process when chlorine is added to calcium hydroxide and producing calcium hypochlorite, calcium chloride, and water as the final result products. Nevertheless, this method is not very effective and becomes obsolete. This method has been replaced by the sodium process, which supports 70% of the total ...

Calcium Hypochlorite Patents and Patent Applications ...

Mar 17, 2008 · Abstract: Dibasic calcium hypochlorite scale present on the surfaces of process equipment, e.g., process vessels, used for the manufacture of neutral calcium hypochlorite is removed chemically by controllably adding chlorine to the process liquor under conditions of agitation while maintaining the pH of the process liquor at at least 7, e.g ...

How sodium chlorite is made - material, production process ...

The chlorine gas is passed through separation towers and is picked up as sodium or calcium hypochlorite. This process produces about a 95% yield of chlorine dioxide. Sodium chlorite generation 3 The chlorine dioxide gas is pumped into a vessel containing a cooled, circulating solution of sodium hydroxide.

Manufacturing Process - Sodium Hypochlorite

There are many stages to be done to create sodium hypochlorite. The process is split in two components called, "Reaction and Product Discharge" and "Bleach Filtration". (" Intratec Solutions LLC", 2005) In the Reaction and Product Discharge stage, there is a chlorine absorption system that can be divided into two systems.

Chlorine - Wikipedia

Chlorine is a chemical element with the symbol Cl and atomic number 17. The second-lightest of the halogens, it appears between fluorine and bromine in the periodic table and its properties are mostly intermediate between them. Chlorine is a yellow-green gas at room temperature. It is an extremely reactive element and a strong oxidising agent: among the elements, it has the highest electron ...

What is Hypochlorite? (with pictures)

The first hypochlorite production method was not as efficient as current methods, and the solution was considerably weaker. After Javel water was produced, people continued seeking better ways of making it. Doing so resulted in a process that involved extracting chlorinated lime, known as calcium hypochlorite or bleaching powder.

Chlorine - Crops Draft

22 Calcium hypochlorite, sodium hypochlorite, and chlorine dioxide are all synthetic materials not found in nature. 23 Calcium hypochlorite and sodium hypochlorite are co mmonly known as bleach. The molecular formulas and 24 structures of these compounds are shown below.1 25 Calcium Hypochlorite (CaCl2O2) Sodium Hypochlorite (ClNaO)

Calcium hypochlorite | Ca(ClO)2 - PubChem

Calcium hypochlorite will be added at levels (as Ca(OCl)2 or measured as free chlorine) not to exceed (1) 400 ppm in water used in processing fruits, vegetables, and nuts; (2) 50 ppm in water used in the chiller, eviscerating line, and on-line reprocessing line for poultry; (3) 250 ppm in scalder water for poultry; (4) 5 ppm in process water for meat; and (5) 10 ppm in water used in the ...

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