leather-tanning
1.One of our important customers intends to build a leather-tanning factory.
2.We thank you for your letter of May 15, 1992, together with your quotation for the leasing of leather-tanning equipment.
8.The Cr(III)was obtained by reducing Cr(VI)in the electroplating wastewater to Cr(III),which was converted to Cr(OH)3 by means of chemical precipitation and flocculation methods. Using H2SO4 as acidulant,chromic sulfate with high purity was obtained by crystallization,which was applied to leather industry as chrome tanning agent.
10.Chrome tanning is one of the most important pollution source in leather making industry. A series of experiments of chrome tanning of leather making using CO 2 Supercritical fluid (SCF) technique were conducted. The optimal chrome tanning technique in the condition of SCF CO 2 have been dertermined by orthogonal experiment :float temperature 40?

