Skip to main content

Industrial Production Of Precipitated Silica & Calcium Carbonate & Neoprene Rubber

1) Industrial Production Of Precipitated Silica 

Www.industrialchemistry.com

>  Reaction

Na²Sio³ + H²So4  ------> Na²So4 + Sio²
Sodium   Sulphuric       Sodium  Silica
Silicate    Acid                 Sulphat
                         
                                           +H²O
                                           Water

>  Process

- Precipitated silica is produced by a reation of the sodium silicate & sulphuric acid .

- First of all pure sodium silicate is taken in dilution tank, whare it is diluted by water.

- Now dilution of solution is taken in a reactor in the reactor H²So4 is also added.

- Solution in the reactor is heated by steam a reaction take place between sodium silicate & Sulphuric acid

- Now afrer complition of reaction whole mass is take in filter press to remove sulphate based on compound & give washed of water.

- Tretment mass is drying in sundrying when filter dryed in tray drayer. then pulveriser the mass & packed pure precipitation silica.

>  Application

1]  Filter softner & performance improvement in rubber & plastic.

2] Cleaning, thickening & polishing agent in toothpaste for oral health care.

3] Food processing & pharmaceutical additive as anti caking, thickening agent, absorbent to make liquid in powders.

4] Food rheology modifier.

5] Defoamer.



2)  Industrial Production Of CaCo³



Www.industrialchemistry.com


> Reation

CaCl² + Na²Co³ ----> CaCo³ + 2NaCl

> Process

- Calcium carbonate is production by the reation of calcium chloride & sodium carbonate.

- First of all calcium chloride & sodium carbonate both taken in a reation.

- Solution in the reactor heated by the steam reation taken place between CaCl² & Na²Co³.

- The reactor will be attucbed to jacket & also the agitator are mixing the whole mass in reactor.

- the remaining mass will be taken in filter press in the filter press remove of NaCl by a washing of H²O.

- Then the whole mass will be taken of the tray drayer & the pulverised of the product are packed.

>  Uses

1 ) The main use of clcium carbonate is in the construction industry material & limestone.

2 ) Calcium carbonate is also used in the prification of iron from are in a blast furace.
  3)  Industrial Production Of Neoprene Rubber

Www.industrialchemistry.com

> Prosecc

- Neoprene rubber is manufactured from the chloroprene

- First of all chloroprene & pyrogallol are taken in stabilizer after it is taken in polymerisation takn here woden pulp, sulphar, NaoH, K²S²O8, & sodium salt of napthalene, sulfonic acid are added.

- Here polymerisation takn place at 40 C in the presence of equal amount of water.

- After complotion of reation whole mass taken in plasticizer here tetra ethyl thiuram di-sulphide is added to increase plasticity & stabilization of polymer.

- Alkali-latex is taken in coagulation tank here coagulation is done is done by acetic acid.

- Now coagulation mass is further taken in brine cooled drum for freezing coagulation & then thin film of the compund is washed by water i have washing tank to remove some impurities, now drayer the mass & 120°C in dry & dyamass is further taken in polymeriser reactor, here alkli mercaptan is added to control the size of polymer.

- Now ploymeric mass is charge in vulcanization unit & valcanization is completed with sulphar in the presence magnesium axide (MgO),zinc oxid (ZnO) as vulcanizing agent cool the mass & cooler & stored as in neoprene rubber.


Comments

Post a Comment

Popular posts from this blog

M.sc Sem-2 Manufacturing Of Glass & Types Of Glass And Information About It

                   >  Process - Glass are made by heating mixtune that nearly always consist of silica call & dry powder or metallic oxides. - Most glass are manufactun by a process in which raw-mateutials are converted at high temperature to a homogejeaus melts , that is then form in to an article. -  Raw mateutials are selecting acrourding the properties purity supply, cost etc . - Silica sand is most common in goradiant all most type of glasses.  - limp-Stones is a sourvr of colcium soda ash is Source of Sadium and bore and Boutic acid is Source of borone. - Broken gloss Usually termed as collected is used as a batch material to enhance glass melting and to resuce the amount of dust and other particular matter that aften a companies a batch mads exculsively from fresh raw-mateuial. - Tipically 10 to 151% of glass batch is the comprised of collect. - More efficient of operation as used in the c...
3 comments
Read more

M.sc Ic - 6 Unit-2 Reaction Part-1

1) Intuioduction & Mechanism of Mannich Reaction  > Defination - compound containing atteast on active H² (Hyduiogen) atom condense with formaldehyde or Punimauiy (1°) or secondauiy (2°) amine or ammonia to give the product known as Mannich base Reaction (Nucleophilic reaction ) Aeromatic ketone containing α-hydutoger undergoes Mannich reaction to fovm β-amino keton Aceto ketone react with formaldehyde in Presence of Porimary / secondany amine to form β-amino ketone. >  Mechanism - Neucleophile attack in N of NH² to amine electotopositive carbonyl carbon (c) of aldehyde to form inteumediate which is then protonated to form imine by oremoval of water. Step - 1  Step - 2 - Reaction between enol from of aertomatic ketone & imine to from intermediate which is the diprotonated to from β-amino ketone. 2)  Intuioduction & Mechanism of  Oppanauer oxidation  Reaction - oppanpueet oxidation is con...
1 comment
Read more

Industrial Production of MgSo4,CaSo4, Mg(OH)² & MgCo³ & Na²Sio³

1)  Industrial production of MgSo4,CaSo4, Mg(OH)² > Reaction                                     1)  Mgcl² + Ca(OH)²  ----->  Mg(OH)² +                                                            CaCl² 2)  Cacl² + H²So4  ------>  CaSo4 + 2HCL 3)  MgCl² + H²So4 ------> MgSo4 + 2HCL > Process  - In the industrial production of MgSo4 & CaSo4 first of all mixed salt bittern is first taken in a reactor. - Ca( OH)² from line treatment tank is also charge into the reactor. - Due to reactor precipitation of the Mg(OH)² is obtained. - filter the mass in filter press to remove precipitation of Mg(OH)² which is dry pulverised & packed. - Filtrate is further taken in a trea...
4 comments
Read more