Title: Iron oxide yellow made method by wash iron waste acid liquid
Application Number: 91106200 Application Date: 1991.07.06
Publication Number: 1056668 Publication Date: 1991.12.04
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: C01G49/06,C23G1/36
Applicant(s) Name: Fan Qinying Address: 114001
Inventor(s) Name: Fan Qinying
Attorney & Agent: JIANG GUIZHI
Abstract:
     A fabrication of iron yellow for chemical industry, construction material, paint and urst prevention is published in this invention. The iron yellow is made of waste pickle cleaned iron. It is comprised of diluting, neutralizing and washing, filtering and baking, and discharge of finish product. For this invention, special equipment is avoided, solution is not heated, mixture of waste pickle with water is adopted, ammonia water is used as neutralizer in process of reaction, pH value is 5-6.
Time: 4