JP4885738B2 - 反応装置の表面仕上げ - Google Patents
反応装置の表面仕上げ Download PDFInfo
- Publication number
- JP4885738B2 JP4885738B2 JP2006552604A JP2006552604A JP4885738B2 JP 4885738 B2 JP4885738 B2 JP 4885738B2 JP 2006552604 A JP2006552604 A JP 2006552604A JP 2006552604 A JP2006552604 A JP 2006552604A JP 4885738 B2 JP4885738 B2 JP 4885738B2
- Authority
- JP
- Japan
- Prior art keywords
- smoothing
- weight
- polishing
- aqueous solution
- reactor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F10/00—Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F110/00—Homopolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2/00—Processes of polymerisation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2/00—Processes of polymerisation
- C08F2/46—Polymerisation initiated by wave energy or particle radiation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F110/00—Homopolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
- C08F110/02—Ethene
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Polymerisation Methods In General (AREA)
Description
下記文献には、酸化クロムとシリカ、アルミナ、ジルコニアまたはトリアの少なくとも一種とを組合せた触媒を使用して炭化水素希釈剤中でオレフィンを重合する方法が記載されている。
従って、オレフィン重合方法、特にエチレンの重合、そして特に高分子量のポリエチレンを重合するプロセスのファウリングを防ぐ新規な方法に対する需要が残っている。
最終レベルの粗さ値は32RMS(0.8ミクロン)であるのが好ましい。
機械研摩は公知の技術であり、粗さのレベルを適切に減少させながら一連の紙やすりを使用して行なうことができる。代表的な
電気化学研摩も公知技術であり、下記文献等に記載されている。
界面活性剤は最大で2重量%、好ましくは0.005〜2重量%の量を加えることができる。腐食防止剤を使用するときは、最大で0.2重量%、好ましくは0.01〜0.2重量%にする。
研摩は20〜60℃の温度、好ましくは室温で行う。処理時間は材料の種類に依存し、最終仕上げ粗さのレベルに依存する。一般には10〜60分である。溶液は循環して分離した金属粒子と不純物を運び去り、それによって金属の除去速度を速くするのが好ましい。
(1)表面の脱脂と活性化(前処理)
(2)研磨溶液を用いた研摩とバリ取り(処理)
(3)不動態化と乾燥(後処理)
各工程の間に水で水洗する。
仕上げられた反応装置の内部表面は1μm以下の粗さレベルを有し、まくれやひび割れはない。
Claims (7)
- 炭素鋼で作られたスラリーループ反応装置のスラリーと接触する全ての内部部品を機械的処理によって多くとも70RMS粗さ値のレベルまで平滑化した後に、化学薬品または電気化学的プロセスによって多くとも40RMS粗さ値の最終レベルまで平滑化することを特徴とする、ポリエチレンを製造するための炭素鋼で作られたスラリーループ反応装置の平滑化方法。
- 第2の平滑化法が化学研磨である請求項1に記載の方法。
- 化学研磨をpHが1〜6の水溶液を用いて行う請求項2に記載の方法。
- 水溶液が(a)オルトリン酸および/または濃縮リン酸および/またはその水溶性塩と(b) 2つまたは3つのカルボキシル基を有する一種以上のカルボキシル酸とから成る請求項3に記載の方法。
- 燐酸塩成分の量が最終使用水溶液の重量をベースにして0.2〜12重量%である請求項4に記載の方法。
- カルボキシル酸の量が最終使用水溶液の重量をベースにして0.01〜1重量%である請求項4または請求項5に記載の方法。
- 平滑化(研摩)を室温で行う請求項4〜6のいずれか一項に記載の方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04100574A EP1564221A1 (en) | 2004-02-13 | 2004-02-13 | Surface finish of a reactor used for polymerisation of polyolefins |
EP04100574.5 | 2004-02-13 | ||
PCT/EP2005/050520 WO2005080439A2 (en) | 2004-02-13 | 2005-02-08 | Surface finish of reactor |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007522303A JP2007522303A (ja) | 2007-08-09 |
JP4885738B2 true JP4885738B2 (ja) | 2012-02-29 |
Family
ID=34684746
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006552604A Expired - Fee Related JP4885738B2 (ja) | 2004-02-13 | 2005-02-08 | 反応装置の表面仕上げ |
Country Status (8)
Country | Link |
---|---|
US (1) | US7473743B2 (ja) |
EP (2) | EP1564221A1 (ja) |
JP (1) | JP4885738B2 (ja) |
KR (1) | KR101266627B1 (ja) |
CN (1) | CN100509864C (ja) |
EA (1) | EA011043B1 (ja) |
ES (1) | ES2386791T3 (ja) |
WO (1) | WO2005080439A2 (ja) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1564221A1 (en) * | 2004-02-13 | 2005-08-17 | Total Petrochemicals Research Feluy | Surface finish of a reactor used for polymerisation of polyolefins |
EP1840141A1 (en) | 2006-03-31 | 2007-10-03 | Total Petrochemicals Research Feluy | Process to kill a catalysed olefin polymerization |
CN101778875B (zh) * | 2007-08-31 | 2012-07-04 | 埃克森美孚化学专利公司 | 减少聚合容器中的沉积物的方法 |
US20110180468A1 (en) * | 2010-01-22 | 2011-07-28 | Michael Foley | Clean filter housing |
CN102921212A (zh) * | 2011-08-08 | 2013-02-13 | 四川西陇化工有限公司 | 化学试剂过氧化氢的过滤设备 |
US8487053B2 (en) | 2011-11-30 | 2013-07-16 | Chevron Phillips Chemical Company Lp | Methods for removing polymer skins from reactor walls |
US9789463B2 (en) | 2014-06-24 | 2017-10-17 | Chevron Phillips Chemical Company Lp | Heat transfer in a polymerization reactor |
JP6620145B2 (ja) | 2014-09-23 | 2019-12-11 | サビック グローバル テクノロジーズ ベスローテン フェンノートシャップ | 超高分子量ポリエチレンを製造するための連続方法 |
US10781273B2 (en) | 2018-12-27 | 2020-09-22 | Chevron Phillips Chemical Company Lp | Multiple reactor and multiple zone polyolefin polymerization |
US11478768B2 (en) | 2019-05-03 | 2022-10-25 | Chevron Phillips Chemical Company Lp | Reactor jacket design |
WO2020263113A1 (en) * | 2019-06-26 | 2020-12-30 | Public Joint Stock Company "Sibur Holding" | The method of reducing polymer deposits on the surfaces of the reactor equipment in the olefin oligomerization process |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5964604A (ja) * | 1982-10-06 | 1984-04-12 | Sumitomo Chem Co Ltd | ポリオレフインの製造方法 |
JP2003192717A (ja) * | 2001-12-03 | 2003-07-09 | Fina Technol Inc | ポリプロピレン製造用バルクループ反応槽をチーグラー・ナッタ触媒とメタロセン触媒の間で切換える方法 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
PT80975B (pt) * | 1984-08-17 | 1987-11-11 | Shinetsu Chemical Co | Processo para a preparacao de um polimero de vinilo |
DE3800834A1 (de) * | 1988-01-14 | 1989-07-27 | Henkel Kgaa | Verfahren und mittel zum gleichzeitigen gleitschleifen, reinigen und passivieren metallischer werkstuecke |
CA1333439C (en) * | 1988-05-23 | 1994-12-06 | Akito Yano | Method for production of hydrophilic polymer |
JP3095304B2 (ja) * | 1992-12-28 | 2000-10-03 | 信越化学工業株式会社 | 塩化ビニル系重合体の製造方法 |
US20050095176A1 (en) * | 2003-10-31 | 2005-05-05 | Hottovy John D. | Method and apparatus for reducing reactor fines |
EP1564221A1 (en) * | 2004-02-13 | 2005-08-17 | Total Petrochemicals Research Feluy | Surface finish of a reactor used for polymerisation of polyolefins |
-
2004
- 2004-02-13 EP EP04100574A patent/EP1564221A1/en not_active Withdrawn
-
2005
- 2005-02-08 WO PCT/EP2005/050520 patent/WO2005080439A2/en active Application Filing
- 2005-02-08 ES ES05716635T patent/ES2386791T3/es active Active
- 2005-02-08 EP EP05716635A patent/EP1713833B1/en not_active Not-in-force
- 2005-02-08 JP JP2006552604A patent/JP4885738B2/ja not_active Expired - Fee Related
- 2005-02-08 CN CNB2005800049110A patent/CN100509864C/zh active Active
- 2005-02-08 EA EA200601493A patent/EA011043B1/ru not_active IP Right Cessation
-
2006
- 2006-07-27 US US11/498,299 patent/US7473743B2/en active Active
- 2006-09-05 KR KR1020067018109A patent/KR101266627B1/ko active IP Right Grant
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5964604A (ja) * | 1982-10-06 | 1984-04-12 | Sumitomo Chem Co Ltd | ポリオレフインの製造方法 |
JP2003192717A (ja) * | 2001-12-03 | 2003-07-09 | Fina Technol Inc | ポリプロピレン製造用バルクループ反応槽をチーグラー・ナッタ触媒とメタロセン触媒の間で切換える方法 |
Also Published As
Publication number | Publication date |
---|---|
EP1564221A1 (en) | 2005-08-17 |
EA011043B1 (ru) | 2008-12-30 |
US20070066770A1 (en) | 2007-03-22 |
EP1713833B1 (en) | 2012-06-13 |
WO2005080439A3 (en) | 2005-10-27 |
JP2007522303A (ja) | 2007-08-09 |
US7473743B2 (en) | 2009-01-06 |
WO2005080439A2 (en) | 2005-09-01 |
EP1713833A2 (en) | 2006-10-25 |
CN1918185A (zh) | 2007-02-21 |
ES2386791T3 (es) | 2012-08-30 |
KR20070008585A (ko) | 2007-01-17 |
CN100509864C (zh) | 2009-07-08 |
KR101266627B1 (ko) | 2013-05-22 |
EA200601493A1 (ru) | 2007-02-27 |
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