Abstract:
The present invention is to a process for reducing and removing organic phosphorus acid from waste stream. The process involves adding a multivalent metal salt to the waste stream and adjusting the pH level of the waste stream to an optimum level to maximize the removal of organic phosphorus acid.
Abstract:
The present invention is to a process for reducing and removing organic phosphorus acid from waste stream. The process involves adding a multivalent metal salt to the waste stream and adjusting the pH level of the waste stream to an optimum level to maximize the removal of organic phosphorus acid.
Abstract:
A process for the manufacture of cellulose esters is described. The process includes the steps of: pre-treating pulp for the removal of impurities with either caustic or acid or both, esterifying the pre-treated pulp, and recycling the caustic or acid or both from the pre-treating step.