1 EXHIBIT 23.1 INDEPENDENT AUDITORS' CONSENT We consent to the use in this Amendment No. 2 to Registration Statement No. 333-30683 of Pioneer Americas Acquisition Corp. of our report dated March 7, 1997 in the Prospectus, which is a part of such Registration Statement, and to the reference to us under the heading "Experts" in such Prospectus. Deloitte & Touche LLP Houston, Texas September 25, 1997