ISHAN DYES & CHEMICALS LIMITED

Vatva, Ahmedabad, Gujarat

Year 1993, was marked with the advent of dyes and Chemicals Limited, into highly competitive Chemicals & Pigments industry. In a short span, since it actually started its production in the Nov. 1995, Ishan has embedded an impeccable impression in the global Pigment and Chemical market with its superior quality products.

Technical Specifications; Product Name Pigment Beta Blue 15:3, Chemical Name Copper Phthalocyanine Blue, Colour Index Name Pigment Blue 15:3, Colour Index No. 74160

Take above heated crude material into dumping vessel with spent sulphuric acid (mother liquor from Alpha Blue) and add water.Then start heating up to 95 deg C and maintain for 3 hrs.. Then filter in filter press, wash it , Neutralize it , dry & pulverize it and packed the final product as a CPC blue.After filtration process whatever mother liquor will be generated that contains 6-8 % of sulphuric acid , we will treate it into our adequate ETP to become neutral. Then after we will discharge it into CETP , vatva.

Charge Di Chloro toluene in M.S. Jacketed Glass line reactor.Then add urea, Phthalic Anhydride, Cuprous Chloride and Ammonium Molybladte to it.Raise the temp up to 180 deg C.During Decomposition of urea ammonia gas as well as carbon dioxide gas is produced.We are controlling it by providing two-stage water scrubber and then after acid scrubber. From the water scrubber we can obtain ammonium carbamate as a by-product.After maintaining sufficient time dump the batch in M.S. venulator for vacuum distillation of solvent.That will recover 95 % of the solvent. And transfer the remaining crude in MSRLTL vessel containing water.