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Sulphuric Acid on the WebTM Technical Manual DKL Engineering, Inc.

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Acid Plant Database  August 1, 2019


Owner PQ Corporation - Eco Services

Location 20720 South Wilmington Avenue
Carson, California
USA  90810
Background Formerly
1928 - Dominguez Chemical Co.
Stauffer Chemical
1987 - Rhone-Poulenc acquires Stauffer Chemical
1998 - Rhodia formed from Rhone-Poulenc Chemicals group
2011 - Acquired by Solvay SA
2014 - Acquired by CCMP Capitol Advisors LLC
2016 - Merged with PQ Corporation
Website www.rhodia.com
Plant Dominguez Plant
Coordinates 33° 50' 36" N, 118° 13' 59" W
Type of Plant Acid Regeneration
Gas Source Alkylation Waste Acid
Plant Capacity -
SA/DA 3/1 DA
Emissions SO2: 3.5 lb/ton Short Term Limit
        Long Term Limit: In compliance with South Coast Air Quality Management Districts
Status Operating
Year Built 1990
Technology Chemetics
Contractor -
Remarks -
Permits State of California South Coast Air Quality Management District www.aqmd.gov
Facility ID: 114801

Consent Decree - Effective Date: July 1, 2007

Pictures Rhodia - Dominguez 1.jpg (187204 bytes)  Rhodia-Dominguez-2.jpg (39956 bytes) 
General -
Reference -

October 3, 2016 - A chemical processing company will pay $106,000 in civil penalties and make changes at its Carson facility as part of a settlement with the U.S. Environmental Protection Agency over a 2013 release of sulfur dioxide.  The Eco Services Operations Corp. facility on Wilmington Avenue produces and regenerates sulfuric acid, an ingredient used in refining oil. The plant released more than 65,000 pounds of sulfur dioxide into the air over five hours on Nov. 18, 2013, and workers at the plant then failed to report the release to officials until eight hours after the release began, according to a release from the EPA.  Employees at nearby businesses reported pain in their lungs and eye irritation to emergency responders, and 11 eventually were treated at local hospitals.  The release occurred after employees at the facility failed to conduct a pre-startup safety review, said EPA Communications Officer Nahal Mogharabi. As a result of that error, a valve that should have been opened to allow the sulfur dioxide to be converted to sulfur trioxide remained closed, according to a consent agreement between the EPA and Eco Solutions.  Additionally, the EPA said, employees were not properly trained to respond to the emergency alarms at the facility, and didn’t shut down operations at the plant when they went off. According to the consent agreement, the employees assumed the system would automatically shut down, and weren’t even aware of the release until emergency responders showed up at the facility.  An investigation by the EPA in 2014 found those and other issues, including a problem with the facility’s system that should have shown employees that the valve was closed.  “It is crucial for companies to take all necessary steps to maintain safe operations,” said Alexis Strauss, acting regional administrator for the EPA’s southwest region in the release.  On top of the six-figure fine Eco Solutions will pay, the company also has updated its startup checklist, conducted training for employees on the updated procedures and added an alarm to let workers know if the startup process is not working properly.  Representatives from Eco Solutions did not immediately return a call requesting comment.


May 4, 2016 - PQ Corporation, a leading global manufacturer of specialty inorganic performance chemicals, high-end catalysts, and engineered glass beads, and Eco Services Operations LLC (“Eco Services”), the North American leader in sulfuric acid recycling services, announced today the closing of a previously announced merger that bolsters PQ’s position as a world-class specialty inorganic chemical company.  Concurrently with the closing of the merger between PQ and Eco Services, PQ has also refinanced its existing credit facilities by entering into a USD$1.2 billion senior secured term loan (consisting of a USD$900 million senior secured term loan and a USD$300 million Euro equivalent senior secured term loan), USD$625 million in new senior secured notes, USD$525 million in senior unsecured notes, and a USD$200 million asset-based secured revolving credit facility. The existing $200 million of Eco Services notes will remain outstanding.  “Combining PQ and Eco Services and refinancing our credit facilities positions the new PQ to grow and prosper well into the future,” said George J. Biltz, President and Chief Executive Officer of the combined company. “Moving forward, our customers will continue to see superior product offerings and top-notch service from our dedicated team.”  Biltz also noted that the combination joins two specialty inorganic chemical companies that have similar business models and complementary customers. Both companies provide mission-critical products and services to the refinery industry, with PQ supplying catalysts necessary for the refining of crude oil and Eco Services providing sulfuric acid regeneration services needed in the alkylation process. Biltz anticipates a smooth integration process that is expected to yield significant back-office savings and other synergies that will serve PQ’s growth initiatives.

July 31, 2014 -
Solvay SA (SOLB) agreed to sell its sulphuric acid operation serving the mining industry to private equity firm CCMP Capitol Advisors LLC in a deal valued at $890 million.  The buyout firm is paying “just over” eight times adjusted earnings before interest, taxes, depreciation and amortization for the last 12 months through June, Solvay said in a statement today.  Chief Executive Officer Jean-Pierre Clamadieu is delivering a deal ahead of a year-end deadline to announce a buyer for the business, as he looks to enhance the Belgian company’s focus and profitability. Separately, Solvay reiterated today it expects high single-digit percentage earnings growth this year.  “Eco Services has a market leading position and generates stable cash flows, but its business profile differs from Solvay’s strategic ambitions,” said Clamadieu.  Sales in the second-quarter rose 2 percent to 2.64 billion euros, driven by higher volumes. Recurring earnings before interest, taxes, depreciation and amortization rose 10 percent to 485 million euros, buoyed by an acquisition to expand in oil-field chemicals that performed better than expectations, and advanced materials. (Bloomberg)

April 4, 2011 - Belgian chemicals and plastics company Solvay SA said Monday that it will buy Rhodia SA in a friendly deal that values the French specialty-chemicals maker at €3.4 billion ($4.84 billion) and will expand Solvay's footprint in fast-growing emerging markets.  Solvay, which in 2009 sold its pharmaceuticals business to Abbott Laboratories for €4.5 billion, is offering €31.60 a share in cash, representing a premium of 50% to Rhodia's Friday closing price of €21.07. The deal has been recommended by the French company's directors.  The new company will have combined annual revenue of €12 billion and will derive 40% of its sales from emerging markets, helped by Rhodia's strong presence in Brazil and China.  Solvay Chief Executive Christian Jourquin said during a news conference that the combined company will have sufficient resources to target larger acquisitions in emerging countries. Rhodia Chief Executive Jean-Pierre Clamadieu pointed to opportunities for expansion in India, in addition to Brazil and China, as well as in the renewable raw-materials sector.  Mr. Clamadieu will become deputy chief executive of Solvay and is expected to take the helm of the company once Mr. Jourquin retires.  Rhodia shares in Paris closed up 48% at €31.21, slightly lower than the offer price, while Solvay closed 2.3% higher at €85.79 in Brussels.  While Rhodia hadn't been considered a likely takeover target for Solvay, it offers the expansion into new markets that the Belgian company had been seeking, analysts said. They said Rhodia will boost Solvay's geographical exposure, particularly in Asia, one of the most promising markets for the companies' businesses. It will also reduce the energy footprint and increase the company's research and development of new products.  But the new Solvay-Rhodia combination won't reduce Solvay's exposure to external economic shocks and the company's performance will continue to shift with macroeconomic trends. "Rhodia was not our best guess," Bernard Hanssens, an analyst at Bank Degroof in Brussels, wrote in a note about the deal. "The reduction of the cyclicality of the earnings seems less obvious," he wrote.  Solvay was hard-hit by the economic downturn, as its business is heavily dependent on the construction and the automotive industries, both of which were affected by the slump. However, its pharmaceutical business had reduced the negative impact, propping up the company's numbers.

MTPD - Metric Tonne per Day           STPD - Short Ton per Day
MTPA - Metric Tonne per Annum      STPA - Short Ton per Annum
SA - Single Absorption
DA - Double Absorption

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